Reported positions
Quarter-end holdings as filed
Explore the full published position list and its source filing. This record excludes the manager’s cash, shorts and non-13(f) assets.
OBERWEIS ASSET MANAGEMENT INC/
A quarter-end snapshot. Filed up to 45 days later, so this page is not current holdings and never a complete portfolio. what a 13F is — and is not ↓ · methodology §13F ↗
Period
$3.4B
reported valuesum of disclosed values for 2026-03-31; 0 positions carry a NULL value and are excluded from the sum, surfaced here rather than folded away
180
positionsALL retained default holdings for this (filer, period), including NULL-value ones
22
new stakespositions with no comparable holding in the prior quarter (kind new), 2026-03-31
21
exitspositions absent from this quarter's filing after being held last quarter (kind exit), 2026-03-31 — inferred from absence, not a sale record
Position changes — into 2026-03-31
by shares · Δ value · filing link · how changes are classified §Positionposition matched across quarters by exact reported CUSIP over a registry gap — producer-reconciled identity, never a name match identity_reconciled_by_cusip | Changethe reported share count is unchanged across the pair, so the position reads as held rather than as a buy or a sell; only builds before this release inferred a direction from the reported value instead classified_by_value · "exit" = absent this quarter: disposed, delisted, under confidential treatment, or reported instead by an affiliated manager — the filing does not say which · change not classifiable: value undisclosed on one side of the quarter pair, or neither shares nor value can classify it · "no change" = the share count is identical in both quarters; the value moved only with price, so the row is mark-to-market and never an add or a trim (Add / New / Trim / Exit / No change) · "no prior" = this filer has no comparable holdings list for the previous quarter on record — a first filing under this registration, or a quarter reported inside an affiliated manager's filing — so the position is not called a new stake | Δ valuederived by Public Filings from the published aggregate; NULL means the source did not disclose a usable value — never zero | Δ shares | Prev value | Curr value | Prev shares | Curr shares | Flags |
|---|---|---|---|---|---|---|---|---|
Applied Optoelectronics Inc. COMposition key pos:18677 · issuer key iss:227 | add | +$128M | +310,328 | $71.1M | $199M | 2,039,641 | 2,349,969 | |
Lumentum Hldgs, Inc. COMposition key pos:18585 · issuer key iss:1379 | trim | +$83.5M | −14,708 | $104M | $187M | 280,930 | 266,222 | |
Credo Technology Group COMposition key pos:16308 · issuer key iss:2480 | add | −$1.2M | +346,580 | $97.2M | $95.9M | 675,388 | 1,021,968 | |
DigitalOcean Holdings, Inc. COMposition key pos:14464 · issuer key iss:738 | add | +$42.1M | +148,675 | $37.5M | $79.6M | 778,830 | 927,505 | |
SharkNinja, Inc. COMposition key pos:11551 · issuer key iss:2613 | add | +$4.6M | +73,660 | $58.9M | $63.5M | 526,310 | 599,970 | |
Nova Ltd. COMposition key pos:14154 · issuer key iss:2687 | add | +$22.7M | +24,670 | $37.2M | $59.9M | 113,285 | 137,955 | |
Dana Inc. COMposition key pos:16472 · issuer key iss:708 | add | +$35.3M | +815,000 | $18.9M | $54.2M | 796,500 | 1,611,500 | |
BrightSpring Health Services COMposition key pos:19170 · issuer key iss:432 | add | +$15.4M | +250,970 | $34.0M | $49.4M | 908,000 | 1,158,970 | |
Macom Technology Solutions COMposition key pos:17416 · issuer key iss:1400 | add | +$17.3M | +36,926 | $30.7M | $47.9M | 178,960 | 215,886 | |
Rambus, Inc COMposition key pos:18571 · issuer key iss:1800 | add | +$2.8M | +64,216 | $42.5M | $45.3M | 462,100 | 526,316 | |
Clean Harbors, Inc. COMposition key pos:11321 · issuer key iss:594 | add | +$14.0M | +27,485 | $27.4M | $41.4M | 116,870 | 144,355 | |
SiTime Corporation COMposition key pos:13075 · issuer key iss:1983 | add | +$3.6M | +12,885 | $37.6M | $41.2M | 106,396 | 119,281 | |
Ultra Clean Holdings COMposition key pos:11683 · issuer key iss:2193 | add | +$23.9M | +11,976 | $15.9M | $39.8M | 628,500 | 640,476 | |
Everus Construction Group COMposition key pos:11418 · issuer key iss:865 | add | +$16.3M | +66,733 | $22.2M | $38.6M | 259,800 | 326,533 | |
Frontdoor, Inc. COMposition key pos:12980 · issuer key iss:967 | add | +$2.7M | +107,100 | $35.2M | $38.0M | 610,860 | 717,960 | |
Carpenter Technology Corp. COMposition key pos:16638 · issuer key iss:527 | add | +$11.2M | +11,822 | $26.0M | $37.2M | 82,611 | 94,433 | |
Skywest Inc COMposition key pos:16498 · issuer key iss:1989 | add | −$2.3M | +10,279 | $38.4M | $36.0M | 382,220 | 392,499 | |
Lattice Semiconductor Corporat COMposition key pos:16871 · issuer key iss:1329 | add | +$11.6M | +59,800 | $23.2M | $34.7M | 314,636 | 374,436 | |
Globus Medical, Inc.-A COMposition key pos:17909 · issuer key iss:1017 | add | +$10.2M | +122,200 | $23.6M | $33.8M | 270,000 | 392,200 | |
Camtek, Ltd. COMposition key sid:sec:prov:56bae275e7c8ff6b3019599a71e87dec · issuer key cusip6:M20791 | add | +$10.5M | +3,900 | $23.3M | $33.8M | 218,880 | 222,780 | |
Arcutis Biotherapeutics, Inc. COMposition key sid:sec:prov:fa36e00268ee3d6d74f8ff5697fdd99c · issuer key cusip6:03969K | add | +$8.7M | +557,541 | $23.5M | $32.2M | 808,400 | 1,365,941 | |
Flowserve Corporation COMposition key pos:17103 · issuer key iss:933 | add | +$3.5M | +24,740 | $28.4M | $32.0M | 409,941 | 434,681 | |
Silicon Motion Techn ADR COMposition key sid:sec:prov:a74e38bfd7e93554eeff15850e62a61f · issuer key cusip6:82706C | add | +$9.8M | +46,250 | $21.9M | $31.7M | 236,300 | 282,550 | |
Life Time Holdings, Inc. COMposition key pos:17572 · issuer key iss:1349 | add | +$3.1M | +101,200 | $28.2M | $31.3M | 1,059,300 | 1,160,500 | |
Rush Street Interactive, Inc. COMposition key pos:13103 · issuer key iss:1878 | add | +$3.8M | +22,850 | $27.4M | $31.2M | 1,411,710 | 1,434,560 | |
FirstCash Holdings, Inc COMposition key pos:19097 · issuer key iss:923 | add | +$10.2M | +34,365 | $20.9M | $31.1M | 131,300 | 165,665 | |
Fastly, Inc. COMposition key pos:14852 · issuer key iss:897 | add | +$24.1M | +381,222 | $7.0M | $31.1M | 689,800 | 1,071,022 | |
Tutor Perini Corp. COMposition key pos:12330 · issuer key iss:2174 | add | +$4.5M | +6,700 | $26.0M | $30.4M | 387,200 | 393,900 | |
Dutch Bros., Inc. COMposition key pos:16837 · issuer key iss:773 | add | +$5.6M | +193,993 | $24.8M | $30.3M | 404,500 | 598,493 | |
Solaris Energy Infrastructur COMposition key sid:sec:prov:ff305e5d71d778fecd58cf4c7769a673 · issuer key cusip6:83418M | add | +$13.2M | +164,989 | $16.9M | $30.1M | 366,900 | 531,889 | |
Merit Medical System Inc COMposition key pos:12237 · issuer key iss:1464 | add | +$5.6M | +155,449 | $23.7M | $29.2M | 268,760 | 424,209 | |
Federal Signal Corp. COMposition key pos:16777 · issuer key iss:901 | add | +$10.9M | +101,134 | $18.1M | $28.9M | 166,500 | 267,634 | |
American Superconductor COMposition key pos:16633 · issuer key iss:180 | add | +$4.7M | +14,000 | $24.1M | $28.8M | 835,900 | 849,900 | |
Mercury Systems, Inc. COMposition key pos:18584 · issuer key iss:1462 | trim | −$1.7M | −23,017 | $30.2M | $28.5M | 414,040 | 391,023 | |
Arcosa, Inc. COMposition key pos:14991 · issuer key iss:236 | add | +$4.9M | +46,100 | $23.6M | $28.4M | 221,600 | 267,700 | |
Osi Systems, Inc. COMposition key pos:13166 · issuer key iss:1602 | add | +$2.4M | +5,193 | $25.9M | $28.3M | 101,400 | 106,593 | |
Core Natural Resources, Inc. COMposition key pos:18078 · issuer key iss:660 | add | +$12.5M | +91,400 | $15.8M | $28.3M | 178,400 | 269,800 | |
Waystar Holding Corp. COMposition key pos:15916 · issuer key iss:2313 | add | +$618K | +326,874 | $27.5M | $28.1M | 840,600 | 1,167,474 | |
Encompass Health Corporation COMposition key pos:18229 · issuer key iss:816 | trim | −$10.1M | −69,486 | $38.1M | $28.0M | 358,971 | 289,485 | |
Veracyte, Inc. COMposition key pos:15789 · issuer key iss:2254 | add | −$3.5M | +113,094 | $30.6M | $27.1M | 726,740 | 839,834 | |
AAR Corp. COMposition key pos:11425 · issuer key iss:6 | trim | +$4.3M | −27,575 | $22.6M | $26.8M | 272,700 | 245,125 | |
ICU Medical, Inc. COMposition key pos:15104 · issuer key iss:1148 | add | +$2.3M | +35,670 | $24.0M | $26.3M | 168,040 | 203,710 | |
Littelfuse, Inc. COMposition key pos:12239 · issuer key iss:1363 | add | +$8.6M | +9,500 | $15.8M | $24.4M | 62,300 | 71,800 | |
Primoris Services Corp. COMposition key pos:13463 · issuer key iss:1754 | add | +$3.5M | +2,800 | $20.3M | $23.8M | 163,300 | 166,100 | |
Remitly Global, Inc. COMposition key pos:13186 · issuer key iss:1833 | add | +$9.0M | +451,500 | $13.8M | $22.8M | 1,002,800 | 1,454,300 | |
Genpact Ltd. COMposition key pos:14565 · issuer key iss:2517 | add | −$1.8M | +85,230 | $24.4M | $22.6M | 521,602 | 606,832 | |
Assurant, Inc. COMposition key pos:13758 · issuer key iss:260 | add | +$2.3M | +19,300 | $20.0M | $22.3M | 83,000 | 102,300 | |
Blue Bird Corporation COMposition key pos:12780 · issuer key iss:405 | add | +$4.1M | +6,600 | $18.0M | $22.1M | 382,638 | 389,238 | |
Imax Corp. COMposition key sid:sec:prov:9ad1f37e45baa2c0731276ae62c8a2e0 · issuer key cusip6:45245E | trim | −$2.2M | −75,161 | $24.1M | $21.9M | 652,300 | 577,139 | |
Levi Strauss & Co. COMposition key pos:18855 · issuer key iss:1343 | add | +$970K | +173,400 | $20.6M | $21.6M | 993,900 | 1,167,300 | |
Alphatec Hldgs Inc. COMposition key pos:11965 · issuer key cusip6:02081G | add | −$286K | +907,893 | $21.0M | $20.8M | 1,000,400 | 1,908,293 | |
nLIGHT Inc. COMposition key pos:12787 · issuer key iss:1574 | add | +$7.3M | +6,610 | $13.4M | $20.7M | 356,400 | 363,010 | |
National Vision Holdings, Inc. COMposition key pos:17695 · issuer key iss:1536 | add | +$407K | +13,280 | $20.3M | $20.7M | 784,500 | 797,780 | |
Ameris Bancorp COMposition key pos:13809 · issuer key iss:190 | add | +$8.9M | +107,100 | $11.6M | $20.6M | 156,400 | 263,500 | |
LivaNova Plc COMposition key pos:11842 · issuer key iss:2558 | add | +$7.4M | +109,600 | $13.1M | $20.5M | 212,300 | 321,900 | |
Leonardo DRS, Inc. COMposition key pos:15997 · issuer key iss:1342 | new | +$20.0M | +449,500 | $0 | $20.0M | — | 449,500 | |
Urban Outfitters, Inc. COMposition key pos:15558 · issuer key iss:2230 | add | −$1.6M | +28,392 | $21.6M | $19.9M | 286,400 | 314,792 | |
Indivior Plc COMposition key pos:18425 · issuer key iss:1171 | new | +$19.9M | +653,413 | $0 | $19.9M | — | 653,413 | |
Grand Canyon Education, Inc. COMposition key pos:15677 · issuer key iss:1039 | add | +$3.3M | +17,100 | $16.6M | $19.9M | 99,800 | 116,900 | |
Vistance Networks, Inc. COMposition key pos:16406 · issuer key iss:628 | add | +$2.5M | +131,100 | $17.4M | $19.9M | 960,912 | 1,092,012 | |
Matador Resources Company COMposition key pos:13057 · issuer key iss:1435 | add | +$9.0M | +58,800 | $10.8M | $19.8M | 253,900 | 312,700 | |
Viavi Solutions, Inc. COMposition key pos:11348 · issuer key iss:2269 | add | +$10.7M | +85,100 | $9.1M | $19.7M | 508,100 | 593,200 | |
Chime Financial Inc. COMposition key pos:11202 · issuer key iss:575 | new | +$19.4M | +1,035,530 | $0 | $19.4M | — | 1,035,530 | |
Pegasystems Inc. COMposition key pos:16745 · issuer key iss:1690 | add | −$6.0M | +30,450 | $25.4M | $19.4M | 424,840 | 455,290 | |
Catalyst Pharmaceuticals, Inc. COMposition key pos:15084 · issuer key iss:535 | add | +$5.6M | +193,600 | $13.7M | $19.3M | 586,970 | 780,570 | |
Q2 Holdings, Inc. COMposition key pos:16565 · issuer key iss:1784 | add | −$5.6M | +57,769 | $24.3M | $18.7M | 336,860 | 394,629 | |
Powell Industries Inc. COMposition key pos:18445 · issuer key iss:1746 | trim | +$3.0M | −14,543 | $15.5M | $18.5M | 48,700 | 34,157 | |
Irhythm Holdings, Inc. COMposition key pos:13207 · issuer key iss:1153 | add | −$2.8M | +36,304 | $21.2M | $18.4M | 119,700 | 156,004 | |
Box, Inc. COMposition key pos:18265 · issuer key iss:424 | add | −$1.3M | +119,200 | $19.5M | $18.2M | 652,320 | 771,520 | |
Argan, Inc COMposition key pos:13363 · issuer key iss:240 | add | +$7.8M | +351 | $10.3M | $18.1M | 32,971 | 33,322 | |
Hinge Health, Inc. COMposition key sid:sec:prov:15b122a1959cdc720dffb69686bc9994 · issuer key cusip6:433313 | new | +$18.0M | +465,766 | $0 | $18.0M | — | 465,766 | |
New York Times Co. Cl A COMposition key pos:19101 · issuer key iss:1559 | trim | −$3.3M | −91,050 | $21.0M | $17.7M | 302,700 | 211,650 | |
American Eagle Outfitters COMposition key pos:12269 · issuer key iss:167 | add | −$4.0M | +230,400 | $21.5M | $17.4M | 814,500 | 1,044,900 | |
Alighnment Healthcare, Inc. COMposition key pos:13470 · issuer key iss:135 | add | +$2.3M | +219,100 | $14.8M | $17.0M | 747,500 | 966,600 | |
ANI Pharmaceuticals, Inc. COMposition key pos:13977 · issuer key iss:27 | add | +$2.1M | +32,556 | $14.9M | $17.0M | 188,830 | 221,386 | |
Envista Holdings Corp. COMposition key pos:12516 · issuer key iss:835 | new | +$16.9M | +665,400 | $0 | $16.9M | — | 665,400 | |
Genedx Holdings Corp. COMposition key pos:11515 · issuer key iss:1951 | add | −$9.1M | +62,600 | $25.9M | $16.8M | 198,770 | 261,370 | |
SPX Technologies, Inc. COMposition key pos:13102 · issuer key iss:1906 | add | +$1.3M | +6,541 | $15.4M | $16.7M | 76,900 | 83,441 | |
Shake Shack, Inc. COMposition key pos:13591 · issuer key iss:1960 | new | +$16.6M | +187,570 | $0 | $16.6M | — | 187,570 | |
Calix, Inc. COMposition key pos:16549 · issuer key iss:500 | add | +$3.5M | +90,430 | $12.9M | $16.4M | 244,600 | 335,030 | |
Super Group SGHC Ltd. COMposition key sid:sec:prov:02a4072384621d2b8e8f8b2b8586fe2c · issuer key cusip6:G8588X | add | +$1.2M | +245,900 | $15.2M | $16.4M | 1,268,500 | 1,514,400 | |
EZCorp, Inc. COMposition key sid:sec:prov:4f6675275ffbb7d8ae52b539305a5648 · issuer key cusip6:302301 | add | +$4.0M | +11,500 | $12.2M | $16.2M | 627,900 | 639,400 | |
LeMaitre Vascular, Inc. COMposition key pos:14860 · issuer key iss:1338 | add | +$6.8M | +32,300 | $9.4M | $16.2M | 116,301 | 148,601 | |
Advanced Energy Industry, Inc. COMposition key pos:11223 · issuer key iss:88 | add | +$7.6M | +9,483 | $8.3M | $15.9M | 39,700 | 49,183 | |
Zurn Elkay Water Solutions Cor COMposition key pos:13617 · issuer key iss:2384 | add | +$3.4M | +86,183 | $12.4M | $15.8M | 266,000 | 352,183 | |
Fabrinet COMposition key pos:18079 · issuer key iss:2504 | add | +$4.3M | +5,063 | $11.5M | $15.8M | 25,200 | 30,263 | |
Kiniksa Pharmaceuticals, Ltd. COMposition key pos:14218 · issuer key iss:2550 | add | +$2.4M | +5,834 | $12.9M | $15.3M | 312,800 | 318,634 | |
Phibro Animal Health Corp COMposition key sid:sec:prov:07df79d236bd2b44122da9ec24db0a18 · issuer key cusip6:71742Q | add | +$7.5M | +67,300 | $7.8M | $15.3M | 209,800 | 277,100 | |
Diodes, Inc. COMposition key pos:17734 · issuer key iss:740 | add | +$7.8M | +72,400 | $7.5M | $15.3M | 151,900 | 224,300 | |
Ambarella, Inc. COMposition key sid:sec:prov:0339a5c20bb7c06dae4230f6939c6864 · issuer key cusip6:G037AX | trim | −$28.6M | −322,675 | $43.8M | $15.2M | 617,860 | 295,185 | |
Pediatrix Medical Group, Inc. COMposition key pos:17180 · issuer key iss:1454 | add | +$3.0M | +141,100 | $12.0M | $15.0M | 559,987 | 701,087 | |
Magnolia Oil & Gas Corp. COMposition key pos:17971 · issuer key iss:1411 | add | +$6.1M | +78,166 | $8.2M | $14.3M | 376,300 | 454,466 | |
Skyward Specialty Ins Group COMposition key sid:sec:prov:e7b2a30be78670ddd0114593421f781f · issuer key cusip6:830940 | add | +$2.1M | +89,600 | $12.1M | $14.3M | 237,500 | 327,100 | |
Halozyme Therapeutics, Inc. COMposition key pos:14855 · issuer key iss:1075 | add | +$6.3M | +102,350 | $7.9M | $14.2M | 117,580 | 219,930 | |
Liquidia Corp. COMposition key pos:15663 · issuer key iss:1361 | add | +$2.7M | +42,900 | $11.4M | $14.0M | 329,200 | 372,100 | |
Arlo Technologies, Inc. COMposition key sid:sec:prov:c72165ad5416fb78154dd267d5db39ec · issuer key cusip6:04206A | new | +$14.0M | +982,300 | $0 | $14.0M | — | 982,300 | |
HealthEquity Inc. COMposition key pos:12968 · issuer key iss:1096 | add | +$956K | +25,061 | $13.0M | $13.9M | 141,580 | 166,641 | |
ProPetro Holding Corp. COMposition key pos:19086 · issuer key iss:1769 | add | +$4.9M | +17,600 | $9.0M | $13.9M | 947,900 | 965,500 | |
Zeta Global Holdings Corp. COMposition key pos:19084 · issuer key iss:2377 | add | −$1.7M | +104,040 | $15.6M | $13.9M | 767,020 | 871,060 | |
Mirion Technologies, Inc. COMposition key pos:16946 · issuer key iss:1484 | add | −$399K | +136,467 | $14.2M | $13.8M | 607,800 | 744,267 |
80 more changes below.
1–100 of 191 changes
Mark-to-market only (no share change) · 10
Positions whose share count is identical in both quarters; the value changed with price, not with a decision.
Positionposition matched across quarters by exact reported CUSIP over a registry gap — producer-reconciled identity, never a name match identity_reconciled_by_cusip | Changethe reported share count is unchanged across the pair, so the position reads as held rather than as a buy or a sell; only builds before this release inferred a direction from the reported value instead classified_by_value · "exit" = absent this quarter: disposed, delisted, under confidential treatment, or reported instead by an affiliated manager — the filing does not say which · change not classifiable: value undisclosed on one side of the quarter pair, or neither shares nor value can classify it · "no change" = the share count is identical in both quarters; the value moved only with price, so the row is mark-to-market and never an add or a trim (Add / New / Trim / Exit / No change) · "no prior" = this filer has no comparable holdings list for the previous quarter on record — a first filing under this registration, or a quarter reported inside an affiliated manager's filing — so the position is not called a new stake | Δ valuederived by Public Filings from the published aggregate; NULL means the source did not disclose a usable value — never zero | Δ shares | Prev value | Curr value | Prev shares | Curr shares | Flags |
|---|---|---|---|---|---|---|---|---|
H World Group Ltd. COMposition key pos:14132 · issuer key iss:1132 | no change | +$77.8K | 0 | $1.1M | $1.2M | 24,000 | 24,000 | |
Microsoft Corp. COMposition key pos:12680 · issuer key iss:1473 | no change | −$302K | 0 | $1.3M | $987K | 2,665 | 2,665 | |
Alphabet, Inc. Cl A COMposition key pos:16029 · issuer key iss:152 | no change | −$48.3K | 0 | $595K | $546K | 1,900 | 1,900 | |
Alphabet, Inc. Cl C COMposition key pos:18738 · issuer key iss:152 | no change | −$43.6K | 0 | $508K | $465K | 1,620 | 1,620 | |
Mastercard, Inc. COMposition key pos:15086 · issuer key iss:1433 | no change | −$47.0K | 0 | $378K | $331K | 662 | 662 | |
Resmed Inc. COMposition key pos:17293 · issuer key iss:1838 | no change | −$23.8K | 0 | $349K | $325K | 1,450 | 1,450 | |
SPDR Gold Shares ETF ETFposition key pos:12087 · issuer key iss:1899 | no change | +$22.9K | 0 | $268K | $290K | 675 | 675 | |
Wells Fargo Co New Perp Pfd PFDposition key pos:16321 · issuer key iss:2317 | no change | −$12.8K | 0 | $273K | $260K | 225 | 225 | |
Aflac Inc. COMposition key pos:16787 · issuer key iss:17 | no change | −$1.1K | 0 | $221K | $219K | 2,000 | 2,000 | |
Xenacare Hldgs, Inc. COMposition key cusip:98401A106 · issuer key cusip6:98401A | no change | $0 | 0 | $0 | $0 | 140,000 | 140,000 |
Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.
Changes derive from the aggregate's top-25 slices and keyable positions only; unkeyable holdings are counted in the registry, not differenced. methodology §13F ↗
Book shape
2026-03-31 · concentration · vs tracked median · tick = median- Top-25 concentration
- 41.8%below median 80.0%
- Concentration index
- 142 bpsbelow median 446 bps
- Positions with value
- 180 / 180median book 97.5 positions
Concentration uses reported 13F long value, not total assets. The index is withheld when any position lacks a value. Medians are over the 8,748 tracked filers with a 2026-03-31 book; the index median over the 8,662 with a complete book.
null-value positions: 0holdings whose <value> did not parse — retained and counted, never zero-filled · top-N share ·§: 41.8% · HHI (bps) ·§: 142integer Herfindahl–Hirschman index in basis points over disclosed position values · QoQ moves: 201
Filing history
AVAILABLE QUARTERS| Period | Source |
|---|---|
| 2026-03-31 | EDGAR ↗ |
PLANNED sector rotation · Congress overlap · signals for this filer
Complete source filings on SEC EDGAR
The complete filing on EDGAR.
The position list above is served from the published Public Filings build — every position this filer reported for the selected quarter, as it reported it. This block is provenance, not a substitute: the filing itself is the record, and it is one click away. Serving this list is M2-CONTRACT §3, amended 2026-08-02; §3.1 keeps live EDGAR for filings newer than this build.
Open OBERWEIS ASSET MANAGEMENT INC/'s 13F filings on SEC EDGAR ↗Notes on this data
Share changes
Compare consecutive quarters
Position changes retain the producer’s classification and comparability flags. Share counts and reported values describe different changes.
Coverage
A snapshot, not current holdings
Use the quarter selector to inspect available periods. Unknown values stay unknown and each table states its coverage.
ViewPrior quarter not yet availableThis build carries one quarter for this manager: 2026-03-31. Notable managers carry four published quarters, others two.
Reported positions — 2026-03-31
1–100 of 179 issuers · $3.4B disclosed value over 180 rows · 0 undisclosed-value rowsEvery row below carries ticker not yet mapped — stated once here rather than repeated on every row.
| KindClassification is not joined into this reported-position view. Use the changed-positions view to compare the two published quarters. | TickerThis list carries reported issuer names and security identities, without a dated ticker mapping. Symbols are not inferred from names. | Issuera position composed from a base filing plus NEW-HOLDINGS amendments keeps every source row here; the composition's latest filed date is the one shown served from this build's published holdings (derived from the filer's own reported rows); every row resolves to its filing | WeightShare of total reported value, calculated only when the full position list has disclosed values. This is 13F long value, not total assets. | Valuevalue undisclosed on the filing: retained and counted, excluded from sums, never shown as $0 | Shares | Position changeShare change is available in the separate comparison view; it is not joined into this position list. | Wt | CongressThe congressional transaction join is unavailable in this build. |
|---|---|---|---|---|---|---|---|---|
| — | AAOIverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Applied Optoelectronics Inc. Applied Optoelectronics Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $199M | 2,349,969 | — | 5.9% | — | |
| — | LITEverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Lumentum Hldgs, Inc. Lumentum Hldgs, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $187M | 266,222 | — | 5.5% | — | |
| — | — | Credo Technology Group Credo Technology Group · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $95.9M | 1,021,968 | — | 2.8% | — | |
| — | — | DigitalOcean Holdings, Inc. DigitalOcean Holdings, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $79.6M | 927,505 | — | 2.3% | — | |
| — | — | SharkNinja, Inc. SharkNinja, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $63.5M | 599,970 | — | 1.9% | — | |
| — | NVMIverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Nova Ltd. Nova Ltd. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $59.9M | 137,955 | — | 1.8% | — | |
| — | DANverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Dana Inc. Dana Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $54.2M | 1,611,500 | — | 1.6% | — | |
| — | — | BrightSpring Health Services BrightSpring Health Services · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $49.4M | 1,158,970 | — | 1.5% | — | |
| — | — | Macom Technology Solutions Macom Technology Solutions · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $47.9M | 215,886 | — | 1.4% | — | |
| — | RMBSverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Rambus, Inc Rambus, Inc · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $45.3M | 526,316 | — | 1.3% | — | |
| — | CLHverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Clean Harbors, Inc. Clean Harbors, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $41.4M | 144,355 | — | 1.2% | — | |
| — | SITMverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | SiTime Corporation SiTime Corporation · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $41.2M | 119,281 | — | 1.2% | — | |
| — | — | Ultra Clean Holdings Ultra Clean Holdings · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $39.8M | 640,476 | — | 1.2% | — | |
| — | — | Everus Construction Group Everus Construction Group · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $38.6M | 326,533 | — | 1.1% | — | |
| — | FTDRverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Frontdoor, Inc. Frontdoor, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $38.0M | 717,960 | — | 1.1% | — | |
| — | CRSverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Carpenter Technology Corp. Carpenter Technology Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $37.2M | 94,433 | — | 1.1% | — | |
| — | SKYWverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Skywest Inc Skywest Inc · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $36.0M | 392,499 | — | 1.1% | — | |
| — | — | Lattice Semiconductor Corporat Lattice Semiconductor Corporat · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $34.7M | 374,436 | — | 1.0% | — | |
| — | — | Globus Medical, Inc.-A Globus Medical, Inc.-A · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $33.8M | 392,200 | — | 1.0% | — | |
| — | — | Camtek, Ltd. Camtek, Ltd. · COM CUSIP M20791105 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $33.8M | 222,780 | — | 1.0% | — | |
| — | — | Arcutis Biotherapeutics, Inc. Arcutis Biotherapeutics, Inc. · COM CUSIP 03969K108 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $32.2M | 1,365,941 | — | 1.0% | — | |
| — | FLSverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Flowserve Corporation Flowserve Corporation · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $32.0M | 434,681 | — | 0.9% | — | |
| — | — | Silicon Motion Techn ADR Silicon Motion Techn ADR · COM CUSIP 82706C108 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $31.7M | 282,550 | — | 0.9% | — | |
| — | — | Life Time Holdings, Inc. Life Time Holdings, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $31.3M | 1,160,500 | — | 0.9% | — | |
| — | RSIverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Rush Street Interactive, Inc. Rush Street Interactive, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $31.2M | 1,434,560 | — | 0.9% | — | |
| — | FCFSverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | FirstCash Holdings, Inc FirstCash Holdings, Inc · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $31.1M | 165,665 | — | 0.9% | — | |
| — | — | Fastly, Inc. Fastly, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $31.1M | 1,071,022 | — | 0.9% | — | |
| — | TPCverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Tutor Perini Corp. Tutor Perini Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $30.4M | 393,900 | — | 0.9% | — | |
| — | — | Dutch Bros., Inc. Dutch Bros., Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $30.3M | 598,493 | — | 0.9% | — | |
| — | — | Solaris Energy Infrastructur Solaris Energy Infrastructur · COM CUSIP 83418M103 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $30.1M | 531,889 | — | 0.9% | — | |
| — | — | Merit Medical System Inc Merit Medical System Inc · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $29.2M | 424,209 | — | 0.9% | — | |
| — | FSSverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Federal Signal Corp. Federal Signal Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $28.9M | 267,634 | — | 0.9% | — | |
| — | — | American Superconductor American Superconductor · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $28.8M | 849,900 | — | 0.8% | — | |
| — | — | Mercury Systems, Inc. Mercury Systems, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $28.5M | 391,023 | — | 0.8% | — | |
| — | ACAverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Arcosa, Inc. Arcosa, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $28.4M | 267,700 | — | 0.8% | — | |
| — | OSISverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Osi Systems, Inc. Osi Systems, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $28.3M | 106,593 | — | 0.8% | — | |
| — | — | Core Natural Resources, Inc. Core Natural Resources, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $28.3M | 269,800 | — | 0.8% | — | |
| — | — | Waystar Holding Corp. Waystar Holding Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $28.1M | 1,167,474 | — | 0.8% | — | |
| — | EHCverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Encompass Health Corporation Encompass Health Corporation · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $28.0M | 289,485 | — | 0.8% | — | |
| — | VCYTverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Veracyte, Inc. Veracyte, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $27.1M | 839,834 | — | 0.8% | — | |
| — | AIRverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | AAR Corp. AAR Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $26.8M | 245,125 | — | 0.8% | — | |
| — | — | ICU Medical, Inc. ICU Medical, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $26.3M | 203,710 | — | 0.8% | — | |
| — | LFUSverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Littelfuse, Inc. Littelfuse, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $24.4M | 71,800 | — | 0.7% | — | |
| — | — | Primoris Services Corp. Primoris Services Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $23.8M | 166,100 | — | 0.7% | — | |
| — | RELYverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Remitly Global, Inc. Remitly Global, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $22.8M | 1,454,300 | — | 0.7% | — | |
| — | — | Genpact Ltd. Genpact Ltd. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $22.6M | 606,832 | — | 0.7% | — | |
| — | AIZverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Assurant, Inc. Assurant, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $22.3M | 102,300 | — | 0.7% | — | |
| — | BLBDverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Blue Bird Corporation Blue Bird Corporation · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $22.1M | 389,238 | — | 0.7% | — | |
| — | — | Imax Corp. Imax Corp. · COM CUSIP 45245E109 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $21.9M | 577,139 | — | 0.6% | — | |
| — | — | Levi Strauss & Co. Levi Strauss & Co. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $21.6M | 1,167,300 | — | 0.6% | — | |
| — | — | Alphatec Hldgs Inc. Alphatec Hldgs Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $20.8M | 1,908,293 | — | 0.6% | — | |
| — | LASRverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | nLIGHT Inc. nLIGHT Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $20.7M | 363,010 | — | 0.6% | — | |
| — | — | National Vision Holdings, Inc. National Vision Holdings, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $20.7M | 797,780 | — | 0.6% | — | |
| — | ABCBverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Ameris Bancorp Ameris Bancorp · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $20.6M | 263,500 | — | 0.6% | — | |
| — | — | LivaNova Plc LivaNova Plc · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $20.5M | 321,900 | — | 0.6% | — | |
| — | DRSverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Leonardo DRS, Inc. Leonardo DRS, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $20.0M | 449,500 | — | 0.6% | — | |
| — | URBNverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Urban Outfitters, Inc. Urban Outfitters, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $19.9M | 314,792 | — | 0.6% | — | |
| — | — | Indivior Plc Indivior Plc · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $19.9M | 653,413 | — | 0.6% | — | |
| — | — | Grand Canyon Education, Inc. Grand Canyon Education, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $19.9M | 116,900 | — | 0.6% | — | |
| — | VISNverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Vistance Networks, Inc. Vistance Networks, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $19.9M | 1,092,012 | — | 0.6% | — | |
| — | — | Matador Resources Company Matador Resources Company · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $19.8M | 312,700 | — | 0.6% | — | |
| — | VIAVverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Viavi Solutions, Inc. Viavi Solutions, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $19.7M | 593,200 | — | 0.6% | — | |
| — | — | Chime Financial Inc. Chime Financial Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $19.4M | 1,035,530 | — | 0.6% | — | |
| — | PEGAverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Pegasystems Inc. Pegasystems Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $19.4M | 455,290 | — | 0.6% | — | |
| — | CPRXverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Catalyst Pharmaceuticals, Inc. Catalyst Pharmaceuticals, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $19.3M | 780,570 | — | 0.6% | — | |
| — | — | Q2 Holdings, Inc. Q2 Holdings, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $18.7M | 394,629 | — | 0.6% | — | |
| — | — | Powell Industries Inc. Powell Industries Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $18.5M | 34,157 | — | 0.5% | — | |
| — | IRTCverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Irhythm Holdings, Inc. Irhythm Holdings, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $18.4M | 156,004 | — | 0.5% | — | |
| — | — | Box, Inc. Box, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $18.2M | 771,520 | — | 0.5% | — | |
| — | AGXverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Argan, Inc Argan, Inc · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $18.1M | 33,322 | — | 0.5% | — | |
| — | — | Hinge Health, Inc. Hinge Health, Inc. · COM CUSIP 433313103 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $18.0M | 465,766 | — | 0.5% | — | |
| — | — | New York Times Co. Cl A New York Times Co. Cl A · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $17.7M | 211,650 | — | 0.5% | — | |
| — | — | American Eagle Outfitters American Eagle Outfitters · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $17.4M | 1,044,900 | — | 0.5% | — | |
| — | — | Alighnment Healthcare, Inc. Alighnment Healthcare, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $17.0M | 966,600 | — | 0.5% | — | |
| — | ANIPverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | ANI Pharmaceuticals, Inc. ANI Pharmaceuticals, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $17.0M | 221,386 | — | 0.5% | — | |
| — | NVSTverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Envista Holdings Corp. Envista Holdings Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $16.9M | 665,400 | — | 0.5% | — | |
| — | — | Genedx Holdings Corp. Genedx Holdings Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $16.8M | 261,370 | — | 0.5% | — | |
| — | SPXCverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | SPX Technologies, Inc. SPX Technologies, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $16.7M | 83,441 | — | 0.5% | — | |
| — | — | Shake Shack, Inc. Shake Shack, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $16.6M | 187,570 | — | 0.5% | — | |
| — | CALXverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Calix, Inc. Calix, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $16.4M | 335,030 | — | 0.5% | — | |
| — | — | Super Group SGHC Ltd. Super Group SGHC Ltd. · COM CUSIP G8588X103 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $16.4M | 1,514,400 | — | 0.5% | — | |
| — | — | EZCorp, Inc. EZCorp, Inc. · COM CUSIP 302301106 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $16.2M | 639,400 | — | 0.5% | — | |
| — | LMATverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | LeMaitre Vascular, Inc. LeMaitre Vascular, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $16.2M | 148,601 | — | 0.5% | — | |
| — | — | Advanced Energy Industry, Inc. Advanced Energy Industry, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $15.9M | 49,183 | — | 0.5% | — | |
| — | — | Zurn Elkay Water Solutions Cor Zurn Elkay Water Solutions Cor · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $15.8M | 352,183 | — | 0.5% | — | |
| — | — | Fabrinet Fabrinet · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $15.8M | 30,263 | — | 0.5% | — | |
| — | — | Kiniksa Pharmaceuticals, Ltd. Kiniksa Pharmaceuticals, Ltd. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $15.3M | 318,634 | — | 0.5% | — | |
| — | — | Phibro Animal Health Corp Phibro Animal Health Corp · COM CUSIP 71742Q106 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $15.3M | 277,100 | — | 0.5% | — | |
| — | DIODverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Diodes, Inc. Diodes, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $15.3M | 224,300 | — | 0.5% | — | |
| — | — | Ambarella, Inc. Ambarella, Inc. · COM CUSIP G037AX101 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $15.2M | 295,185 | — | 0.4% | — | |
| — | MDverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Pediatrix Medical Group, Inc. Pediatrix Medical Group, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $15.0M | 701,087 | — | 0.4% | — | |
| — | — | Magnolia Oil & Gas Corp. Magnolia Oil & Gas Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $14.3M | 454,466 | — | 0.4% | — | |
| — | — | Skyward Specialty Ins Group Skyward Specialty Ins Group · COM CUSIP 830940102 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $14.3M | 327,100 | — | 0.4% | — | |
| — | HALOverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | Halozyme Therapeutics, Inc. Halozyme Therapeutics, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $14.2M | 219,930 | — | 0.4% | — | |
| — | — | Liquidia Corp. Liquidia Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $14.0M | 372,100 | — | 0.4% | — | |
| — | — | Arlo Technologies, Inc. Arlo Technologies, Inc. · COM CUSIP 04206A101 quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $14.0M | 982,300 | — | 0.4% | — | |
| — | HQYverified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | HealthEquity Inc. HealthEquity Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $13.9M | 166,641 | — | 0.4% | — | |
| — | — | ProPetro Holding Corp. ProPetro Holding Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $13.9M | 965,500 | — | 0.4% | — | |
| — | — | Zeta Global Holdings Corp. Zeta Global Holdings Corp. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $13.9M | 871,060 | — | 0.4% | — | |
| — | — | Mirion Technologies, Inc. Mirion Technologies, Inc. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-05-15 +45d | $13.8M | 744,267 | — | 0.4% | — |
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every row this filer reported for the quarter, as it reported it — cross-filer de-duplication is applied to issuer totals elsewhere and never deletes a row here
A 13F is a quarterly, long-only snapshot filed up to 45 days late — not current holdings. what a 13F covers ↗
13F reports cover LONG positions in Section 13(f) securities (US exchange-traded equities plus reportable options, warrants, certain convertibles) held by managers with at least $100M in such securities — so managers below that threshold are absent entirely. No short positions, no cash, no non-13(f) assets — not a full portfolio, and not a census of institutional ownership.
Positions are quarter-end snapshots filed up to 45 days late — not current holdings. A position may have been changed or closed before you ever see it, and is older still by however long ago that quarter ended.
Values are the manager's stated market value at quarter-end in era-dependent units (whole dollars for form versions effective 2023-01-03 onward, thousands before), normalized here to whole dollars with unit_basis carried on every record.
Affiliated managers may report the same position (otherManager), so one position can appear under more than one filer.
Positions under confidential treatment may be omitted until a later amendment discloses them.
These are disclosures, not investment advice (ARCHITECTURE.md §5.2 / M2-CONTRACT §5).