MONTRUSCO BOLTON INVESTMENTS INC.
CIK 1475940 · EDGAR ↗
- sum of disclosed values for 2026-03-31; 0 positions have no disclosed value and are left out of the sum, counted here rather than dropped
- $6.6B
- every reported holding for this filer and quarter, including ones with no disclosed value
- 72
- positions with no comparable holding in the prior quarter (kind new), 2026-03-31
- 7
- positions absent from this quarter's filing after being held last quarter (kind exit), 2026-03-31 — inferred from absence, not a sale record
- 8
Quarter-end snapshot, filed up to 45 days later — not current holdings. What a 13F covers ↓
Changes · Quarter ended 2026-03-31. Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.
by shares · How classified ↗Period
| The reviewed ticker for the filed issuer name and share class, the same mapping the Reported positions table uses. Symbols are never inferred from names; — means no reviewed mapping. | position matched across quarters by exact reported CUSIP over a registry gap — never a name match | NEW / ADD / TRIM / EXIT by share count · NO CHANGE = same shares; the value moved with price, so never an ADD or a TRIM · EXIT = absent this quarter (disposed, delisted, confidential, or reported by an affiliate) — the filing does not say which · NO PRIOR = no comparable prior quarter on record (a first filing, or a quarter filed inside an affiliate's report), so not called a new stake · n/c = not classifiable: value undisclosed on one side of the pair, or neither shares nor value can classify it · †v: the reported share count is unchanged across the pair; this build's data classified the change from its reported value; builds from 2026-09-10 on read it as NO CHANGE | derived by Public Filings from the published data; “no value” means the source did not disclose a usable value — never zero | Prev value | Curr value | Prev shares | Curr shares | |
|---|---|---|---|---|---|---|---|---|
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:15642 · issuer key iss:1334 | TRIM | −$104M | −331,625 | $723M | $619M | 3,990,992 | 3,659,367 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:11825 · issuer key iss:1225 | TRIM | −$310M | −364,081 | $759M | $450M | 1,613,524 | 1,249,443 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: CAP STK CL A · position key pos:15142 · issuer key iss:89 | TRIM | −$139M | −334,350 | $533M | $394M | 1,738,855 | 1,404,505 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:14175 · issuer key iss:95 | TRIM | −$109M | −300,496 | $478M | $370M | 2,124,958 | 1,824,462 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:18039 · issuer key iss:1025 | ADD | +$42.7M | +240,754 | $313M | $356M | 1,005,426 | 1,246,180 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:16804 · issuer key iss:1945 | TRIM | −$111M | −523,366 | $398M | $287M | 2,345,566 | 1,822,200 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:15144 · issuer key iss:556 | TRIM | −$75.3M | −103,400 | $321M | $246M | 1,444,568 | 1,341,168 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: CL A · position key pos:14206 · issuer key iss:1193 | ADD | +$22.5M | +107,093 | $214M | $237M | 382,750 | 489,843 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: CL A · position key pos:11390 · issuer key iss:720 | TRIM | −$59.0M | −35,039 | $295M | $236M | 457,439 | 422,400 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:11150 · issuer key iss:1887 | TRIM | +$52.1M | −164,679 | $179M | $231M | 1,100,912 | 936,233 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:10330 · issuer key iss:1250 | TRIM | −$56.6M | −578,989 | $267M | $210M | 3,539,158 | 2,960,169 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: CL A · position key pos:11897 · issuer key iss:2010 | TRIM | −$75.5M | −501,743 | $267M | $191M | 2,168,078 | 1,666,335 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:12827 · issuer key iss:323 | ADD | +$89.0M | +339,895 | $98.9M | $188M | 285,740 | 625,635 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:16368 · issuer key iss:953 | ADD | +$69.6M | +165,188 | $117M | $187M | 176,932 | 342,120 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM STK · position key pos:11066 · issuer key iss:15 | ADD | +$68.2M | +1,561,990 | $115M | $184M | 3,090,155 | 4,652,145 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: SPONSORED ADS · position key pos:17467 · issuer key iss:1751 | TRIM | −$38.1M | −188,725 | $200M | $162M | 698,967 | 510,242 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:13215 · issuer key iss:144 | TRIM | −$58.6M | −174,280 | $216M | $157M | 793,410 | 619,130 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:12696 · issuer key iss:1845 | ADD | −$8.7M | +155,770 | $165M | $156M | 2,086,619 | 2,242,389 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:13510 · issuer key iss:444 | TRIM | −$42.1M | −530,748 | $190M | $148M | 5,289,270 | 4,758,522 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM NEW · position key pos:10455 · issuer key iss:1091 | ADD | +$38.0M | +58,539 | $104M | $142M | 626,819 | 685,358 |
Flags: no row carries a flag.
1–20 of the 77 changes on this page
Mark-to-market only (no share change) · 3
Positions whose share count is identical in both quarters; the value changed with price, not with a decision.
| The reviewed ticker for the filed issuer name and share class, the same mapping the Reported positions table uses. Symbols are never inferred from names; — means no reviewed mapping. | position matched across quarters by exact reported CUSIP over a registry gap — never a name match | NEW / ADD / TRIM / EXIT by share count · NO CHANGE = same shares; the value moved with price, so never an ADD or a TRIM · EXIT = absent this quarter (disposed, delisted, confidential, or reported by an affiliate) — the filing does not say which · NO PRIOR = no comparable prior quarter on record (a first filing, or a quarter filed inside an affiliate's report), so not called a new stake · n/c = not classifiable: value undisclosed on one side of the pair, or neither shares nor value can classify it · †v: the reported share count is unchanged across the pair; this build's data classified the change from its reported value; builds from 2026-09-10 on read it as NO CHANGE | derived by Public Filings from the published data; “no value” means the source did not disclose a usable value — never zero | Prev value | Curr value | Prev shares | Curr shares | |
|---|---|---|---|---|---|---|---|---|
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:17441 · issuer key iss:344 | NO CHANGE | −$2.5M | 0 | $17.2M | $14.7M | 565,500 | 565,500 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:11701 · issuer key iss:1466 | NO CHANGE | −$853K | 0 | $7.4M | $6.5M | 32,295 | 32,295 |
| a reviewed mapping row for this filed issuer name and share class (never inferred from the name) | share class as filed: COM · position key pos:12276 · issuer key iss:1600 | NO CHANGE | −$2.1M | 0 | $5.6M | $3.5M | 63,300 | 63,300 |
Flags: no row carries a flag.
Holdings without a security ID are counted, not compared. Method ↗
Reported positions — 2026-03-31
72 positionsViewThis build carries one quarter for this manager: 2026-03-31. Notable managers carry four published quarters, others two.
| This list carries reported issuer names and security identities, without a dated ticker mapping. Symbols are not inferred from names. | a 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 | Share of total reported value, calculated only when the full position list has disclosed values. This is 13F long value, not total assets. | value undisclosed on the filing: retained and counted, excluded from sums, never shown as $0 | Shares | Wt |
|---|---|---|---|---|---|
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | NVIDIA CORPORATION · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $619M | 3,659,367 | 9.4% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | MICROSOFT CORP · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $450M | 1,249,443 | 6.8% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | ALPHABET INC · CAP STK CL A CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $394M | 1,404,505 | 6.0% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | AMAZON COM INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $370M | 1,824,462 | 5.6% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | JPMORGAN CHASE & CO · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $356M | 1,246,180 | 5.4% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | WASTE CONNECTIONS INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $287M | 1,822,200 | 4.3% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | DANAHER CORP DEL · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $246M | 1,341,168 | 3.7% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | MASTERCARD INCORPORATED · CL A CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $237M | 489,843 | 3.6% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | META PLATFORMS INC · CL A CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $236M | 422,400 | 3.6% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | VALERO ENERGY CORP · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $231M | 936,233 | 3.5% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | MONSTER BEVERAGE CORP NEW · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $210M | 2,960,169 | 3.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | ZOETIS INC · CL A CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $191M | 1,666,335 | 2.9% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | BROADCOM INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $188M | 625,635 | 2.8% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | IDEXX LABS INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $187M | 342,120 | 2.8% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | API GROUP CORP · COM STK CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $184M | 4,652,145 | 2.8% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | TAIWAN SEMICONDUCTOR MANUFAC · SPONSORED ADS CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $162M | 510,242 | 2.5% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | APPLE INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $157M | 619,130 | 2.4% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | UBER TECHNOLOGIES INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $156M | 2,242,389 | 2.4% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | CHIPOTLE MEXICAN GRILL INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $148M | 4,758,522 | 2.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | LAM RESEARCH CORP · COM NEW CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $142M | 685,358 | 2.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | PUBLIC STORAGE OPER CO · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $136M | 518,306 | 2.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | RYAN SPECIALTY HOLDINGS INC · CL A CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $132M | 4,022,506 | 2.0% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | AMPHENOL CORP · CL A CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $118M | 935,551 | 1.8% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | SHERWIN WILLIAMS CO · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $113M | 360,931 | 1.7% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | SYNOPSYS INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $109M | 281,301 | 1.6% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | WALMART INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $74.1M | 596,410 | 1.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | TRACTOR SUPPLY CO · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $58.5M | 1,290,454 | 0.9% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | SUNBELT RENTALS HOLDINGS INC · SHS CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $57.2M | 1,002,578 | 0.9% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | ROYAL BK CDA · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $44.8M | 278,201 | 0.7% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | CGI INC · CL A SUB VTG CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $38.1M | 523,255 | 0.6% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | BLACKROCK INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $37.4M | 38,933 | 0.6% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | FIRSTSERVICE CORP NEW · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $36.5M | 263,488 | 0.6% | |
| — | BOYD GROUP SERVICES INC · COM CUSIP 103310108 quarter ended 2026-03-31 filed filed 2026-04-28 +28d ticker not yet mapped | $35.7M | 280,207 | 0.5% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | TORONTO DOMINION BK ONT · COM NEW CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $34.2M | 367,619 | 0.5% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | AGNICO EAGLE MINES LTD · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $32.9M | 162,760 | 0.5% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | SUNCOR ENERGY INC NEW · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $31.5M | 478,392 | 0.5% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | BANK MONTREAL MEDIUM · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $27.7M | 204,967 | 0.4% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | TRANSFORCE INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $25.8M | 238,165 | 0.4% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | WHEATON PRECIOUS METALS CORP · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $25.6M | 195,962 | 0.4% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | CANADIAN NATL RY CO · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $20.1M | 195,490 | 0.3% | |
| — | TASEKO MINES LTD · COM CUSIP 876511106 quarter ended 2026-03-31 filed filed 2026-04-28 +28d ticker not yet mapped | $19.6M | 3,031,296 | 0.3% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | DESCARTES SYS GROUP INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $17.6M | 246,235 | 0.3% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | BRP INC · COM SUN VTG CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $15.9M | 221,693 | 0.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | COLLIERS INTL GROUP INC · SUB VTG SHS CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $15.5M | 145,285 | 0.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | BROOKFIELD ASSET MANAGMT LTD · CL A LMT VTG SHS CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $15.3M | 345,381 | 0.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | RB GLOBAL INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $14.9M | 155,700 | 0.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | CAE INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $14.7M | 565,500 | 0.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | GILDAN ACTIVEWEAR INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $13.6M | 244,300 | 0.2% | |
| — | BROOKFIELD WEALTH SOL LTD · CL A EXCHANGEAB CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d ticker not yet mapped | $12.7M | 307,408 | 0.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | SUN LIFE FINANCIAL INC. · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $12.5M | 200,841 | 0.2% | |
| — | ENDEAVOUR SILVER CORP · COM CUSIP 29258Y103 quarter ended 2026-03-31 filed filed 2026-04-28 +28d ticker not yet mapped | $11.9M | 1,282,097 | 0.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | CAMECO CORP · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $10.2M | 93,959 | 0.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | PEMBINA PIPELINE CORP · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $10.0M | 224,396 | 0.2% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | OR ROYALTIES INC. · COM SHS CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $9.7M | 254,620 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | CBIZ INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $9.1M | 340,021 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | MDA SPACE LTD · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $8.4M | 333,096 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | CORE & MAIN INC · CL A CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $8.3M | 167,215 | 0.1% | |
| — | INTEGRA RES CORP · COM CUSIP 45826T509 quarter ended 2026-03-31 filed filed 2026-04-28 +28d ticker not yet mapped | $7.2M | 2,670,377 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | POOL CORP · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $6.5M | 32,295 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | ORLA MNG LTD NEW · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $5.8M | 359,590 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | ATS CORPORATION · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $4.8M | 170,956 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | OPEN TEXT CORP · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $4.8M | 214,625 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | ALAMOS GOLD INC · COM CL A CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $3.9M | 88,079 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | BROOKFIELD CORP · CL A LTD VT SH CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $3.6M | 88,355 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | SPS COMM INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $3.5M | 63,300 | 0.1% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | SHOPIFY INC · CL A SUB VTG SHS CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $3.1M | 26,612 | 0.0% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | AMERICAS GOLD AND SILVER COR · COM NEW CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $2.9M | 549,996 | 0.0% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | EQUINOX GOLD CORP · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $2.1M | 149,134 | 0.0% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | PROCTER & GAMBLE CO · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $1.3M | 9,067 | 0.0% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | UFP TECHNOLOGIES INC · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $504K | 2,604 | 0.0% | |
| — | LIGHTSPEED COMMERCE INC · SUB VTG SHS CUSIP 53229C107 quarter ended 2026-03-31 filed filed 2026-04-28 +28d ticker not yet mapped | $303K | 34,000 | 0.0% | |
| verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred) | CANADIAN PACIFIC KANSAS CITY · COM CUSIP — quarter ended 2026-03-31 filed filed 2026-04-28 +28d | $236K | 3,003 | 0.0% |
1–20 of 72 positions
1–72 of 72 positions · page 1 of 1
One line per issuer, largest first — open a line for its reported rows. Grouping ↗
Book shape
Tick = median of the 8,748 tracked filers with a 2026-03-31 book (the index median: the 8,662 with a complete book). Concentration uses reported 13F long value, not total assets; the index is withheld when any position lacks a value.- 87.1%above median 80.0%
- integer Herfindahl–Hirschman index in basis points over disclosed position values
- 393 bpsbelow median 446 bps
- holdings with no disclosed value (undisclosed, or unreadable on the filing) — kept and counted, never shown as zero
- 72 / 72median book 97.5 positions
80 quarter-over-quarter rows
Filing history
Complete source filings on SEC EDGAR
The filing on EDGAR is the record, including any filed after this build.
Open MONTRUSCO BOLTON INVESTMENTS INC.'s 13F filings on SEC EDGAR ↗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 changed or closed since the 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; each record notes its original unit.
Affiliated managers may report the same position, 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.