Public record / Institutional · Form 13F

Institutional

What tracked 13F filers reported each quarter, and what changed between quarters.

Filers tracked
9,451
8,748 filed 2026-03-31
Tracked value
$65.5T
13F long only · 2026-03-31
Consensus add
Ishares Trust
9 notable managers opened it · 2026-03-31
Notable managers
37
10,253 named moves · 2026-03-31
13F universe · quarterly, 45-day lag · not current holdings Closed quarter 2026-03-31 · 8,748 filers reported Long positions only · coverage §

newest filing received: 2026-07-31 · filings for 2026-06-30 are still arriving (window open)

Notable managers — latest named moves

quarter ended 2026-03-31 · by shares · largest $ change first within New › Exit › Add › Trim
Quarter
Change
Type
Notable managers' position changes into the quarter ended 2026-03-31
ManagerTicker · IssuerChangeΔ sharesNow $Δ $FiledSrc
Berkshire Hathaway (Warren Buffett)DALticker verified against the SEC company list on 2026-09-10 DELTA AIR LINES INCNew+39,809,456$2.6B+$2.6B2026-05-15EDGAR ↗
Pershing Square Capital (Bill Ackman)MSFTticker verified against the SEC company list on 2026-09-10 MICROSOFT CORPNew+5,654,078$2.1B+$2.1B2026-05-15EDGAR ↗
Coatue Management (Philippe Laffont)EQIXticker verified against the SEC company list on 2026-09-10 EQUINIX INCNew+1,090,886$1.1B+$1.1B2026-05-15EDGAR ↗
Berkshire Hathaway (Warren Buffett)GOOGticker verified against the SEC company list on 2026-09-10 ALPHABET INCNew+3,585,215$1.0B+$1.0B2026-05-15EDGAR ↗
Viking Global Investors (Andreas Halvorsen)AAPLticker verified against the SEC company list on 2026-09-10 APPLE INCNew+3,593,057$912M+$912M2026-05-15EDGAR ↗
TCI Fund Management (Chris Hohn)GOOGLticker verified against the SEC company list on 2026-09-10 ALPHABET INCNew+2,457,000$707M+$707M2026-05-15EDGAR ↗
Viking Global Investors (Andreas Halvorsen)FDXticker verified against the SEC company list on 2026-09-10 FEDEX CORPNew+1,932,165$688M+$688M2026-05-15EDGAR ↗
Coatue Management (Philippe Laffont)ASMLticker verified against the SEC company list on 2026-09-10 ASML HLDG NVNew+496,234$655M+$655M2026-05-15EDGAR ↗
Viking Global Investors (Andreas Halvorsen)METAticker verified against the SEC company list on 2026-09-10 META PLATFORMS INCNew+1,062,575$608M+$608M2026-05-15EDGAR ↗
Lone Pine Capital (Stephen Mandel)TERticker verified against the SEC company list on 2026-09-10 TERADYNE INCNew+1,872,876$555M+$555M2026-05-15EDGAR ↗
Lone Pine Capital (Stephen Mandel)GLWticker verified against the SEC company list on 2026-09-10 CORNING INCNew+3,718,147$506M+$506M2026-05-15EDGAR ↗
Lone Pine Capital (Stephen Mandel)MTZticker verified against the SEC company list on 2026-09-10 MASTEC INCNew+1,531,050$493M+$493M2026-05-15EDGAR ↗
Viking Global Investors (Andreas Halvorsen)ATIticker verified against the SEC company list on 2026-09-10 ATI INCNew+3,332,843$485M+$485M2026-05-15EDGAR ↗
Elliott Investment Management (Paul Singer)SELECT SECTOR SPDR TRNew+4,300,000$469M+$469M2026-05-15EDGAR ↗
Elliott Investment Management (Paul Singer)ISHARES TRNew+5,000,000$398M+$398M2026-05-15EDGAR ↗

Showing 15 of 10,253 moves · · every row for this quarter (JSON)

Moves are classified by share count between the two quarters; a dollar change alone is not a position change. Exit is inferred from absence in the next filing. Tickers appear only where the reviewed mapping names one.

Filer directory

9,451 filers · sorted by reported 13(f) long value, largest first · each value is the filer's latest period, shown beside it · click a header to re-sort

13F filers ranked by reported 13(f) long value for each filer's latest period
Manager type and display name come from a curated registry covering 113 of 9,451 filers in this build. The rest render the name exactly as filed and carry no type — that is a gap in the curation, not a statement that the manager is uncategorised. Automatic classification across the full filer population is future work.CIKSEC filer identifier.Top-5Reported top-five share, available only when the source concentration slice contains five positions.Latest notableLargest reported change within each filer's latest quarter. It is not a cross-filer ranking.
Citadel Advisors Ken Griffin filed as CITADEL ADVISORS LLC Hedge funds0001423053$618BReporting period 2026-03-31. HHI 72 bps.15,589TESLA INC trim −$6.1B
Millennium Management Izzy Englander filed as MILLENNIUM MANAGEMENT LLC Hedge funds0001273087$240BReporting period 2026-03-31. HHI 54 bps.5,624WALMART INC trim −$4.4B
AQR Capital Management Cliff Asness filed as AQR CAPITAL MANAGEMENT LLC Hedge funds0001167557$218BReporting period 2026-03-31. HHI 32 bps.20,832ATLASSIAN CORPORATION trim −$974M
D. E. Shaw & Co quant filed as D. E. Shaw & Co., Inc. Hedge funds0001009207$166BReporting period 2026-03-31. HHI 27 bps.5,804STATE STR SPDR S&P 500 ETF T trim −$3.2B
Two Sigma Investments quant filed as TWO SIGMA INVESTMENTS, LP Hedge funds0001179392$124BReporting period 2026-03-31. HHI 26 bps.4,546NVIDIA CORPORATION add $1.7B
Marshall Wace platform filed as MARSHALL WACE, LLP Hedge funds0001318757$100BReporting period 2026-03-31. HHI 336 bps.6,623ISHARES-S&P 500 trim −$5.1B
Point72 Asset Management Steve Cohen filed as Point72 Asset Management, L.P. Hedge funds0001603466$78.1BReporting period 2026-03-31. HHI 25 bps.3,704STATE STR SPDR S&P 500 ETF T trim −$941M
Balyasny Asset Management platform filed as BALYASNY ASSET MANAGEMENT L.P. Hedge funds0001218710$77.1BReporting period 2026-03-31. HHI 59 bps.3,117STATE STR SPDR S&P 500 ETF T add $2.9B
Adage Capital equity filed as ADAGE CAPITAL PARTNERS GP, L.L.C. Hedge funds0001165408$64.8BReporting period 2026-03-31. HHI 125 bps.956MICROSOFT CORP trim −$771M
Renaissance Technologies quant filed as RENAISSANCE TECHNOLOGIES LLC Hedge funds0001037389$63.9BReporting period 2026-03-31. HHI 28 bps.3,213APPLE INC new $781M
§ "reported 13(f) long value" is the sum of disclosed long-position values for the stated quarter — it excludes cash, shorts, and non-13(f) assets, so it is NOT a measure of everything the manager runs, and a large multi-asset manager can appear small. Sourced period-correctly from agg_filer_concentration; NULL means the source disclosed no usable value — never zero. HHI renders only over a complete disclosed-value book: with any NULL-valued position the denominator is partial, so the number is withheld from display and ordering rather than shown as false precision

38 more managers below. Every filer in this build has its own page, linked from its row here.

Consensus

≥3 notable managers moved the same name · 2026-03-31 · ranked by new stakes
Issuers moved by 3 or more notable managers in 2026-03-31
Ticker · IssuerNew stakesAddsTrimsExitsNet $Top mover
Ishares Trust9568−$2.6BTudor Investment Corp Trim
GOOGL Alphabet Inc65113+$7.3BBerkshire Hathaway Add
Ishares Trust6223+$138MElliott Investment Management New
ASML Asml Hldg Nv5420+$958MCoatue Management New
ATI Ati Inc5110+$523MViking Global Investors New
SNDK Sandisk Corp5110+$319MAppaloosa New
MELI Mercadolibre Inc5224+$295MTiger Global Management New
HUM Humana Inc5220+$60.1MGlenview Capital New
Vaneck Etf Trust5251−$1.1BElliott Investment Management Trim
META Meta Platforms Inc5771−$1.1BCoatue Management Trim
FDX Fedex Corp4210+$749MViking Global Investors New
MU Micron Technology Inc4420+$601MBridgewater Associates Add
PEN Penumbra Inc4200+$276MTudor Investment Corp New
LITE Lumentum Hldgs Inc4140+$218MSoros Fund Management Add
HUT Hut 8 Corp4112+$208MLone Pine Capital New
SOLS Solstice Advanced Matls Inc4101+$156MCoatue Management New
Terns Pharmaceuticals Inc4200+$64.7MTudor Investment Corp New
AA Alcoa Corp4311+$60.7MTudor Investment Corp New
FPS Forgent Power Solutions Inc4000+$52.6MMoore Capital Management New
Masimo Corp4211+$37.0MViking Global Investors Exit
AKAM Akamai Technologies Inc4111+$27.5MSachem Head Capital New
EQX Equinox Gold Corp - Us4110+$7.6MMoore Capital Management New
IOSP Innospec Inc4000+$1.6MGotham Asset Management New
KKR Kkr & Co Inc4140−$243MLone Pine Capital Trim
Select Sector Spdr Trust4354−$596MElliott Investment Management Trim
QQQ Invesco Qqq Trust4232−$1.4BElliott Investment Management Trim
TSM Taiwan Semiconductor Manufac3770+$2.0BTiger Global Management Add
EQIX Equinix Inc3130+$1.1BCoatue Management New
SUNB Sunbelt Rentals Holdings Inc3000+$455MRuane Cunniff & Goldfarb New
CRWV Coreweave Inc3311+$396MAltimeter Capital Add
LRCX Lam Research Corp3340+$360MCoatue Management Add
PRMB Primo Brands Corporation3110+$349MSachem Head Capital New
WBD Warner Bros Discovery Inc3421+$346MCaxton Associates Add
NCLH Norwegian Cruise Line Hldgs3121+$253MElliott Investment Management New
CBOE Cboe Global Mkts Inc3210+$228MViking Global Investors New
PBR Petroleo Brasileiro S.a. - Adr (nyse)3210+$155MOaktree Capital Management New
Ishares Inc3451+$148MAppaloosa Add
WIX Wix Com Ltd3111+$128MValueAct Holdings New
EQPT Equipmentshare Com Inc3000+$117MTiger Global Management New
CLS Celestica Inc3141+$113MD1 Capital Partners New
RTX Rtx Corporation3220+$110MCaxton Associates New
Ishares Inc3211+$101MBridgewater Associates New
COIN Coinbase Global Inc3131+$92.6MMoore Capital Management New
INTC Intel Corp3311+$88.9MTiger Global Management New
Topbuild Cor3100+$74.9MD1 Capital Partners New
BX Blackstone Inc3200+$73.1MGotham Asset Management Add
EMR Emerson Elec Co3220+$71.1MElliott Investment Management New
AAOI Applied Optoelectronics Inc - Us3101+$59.0MTudor Investment Corp Add
LYB Lyondellbasell Industries Nv3111+$57.7MOaktree Capital Management New
Spdr Series Trust3212+$56.3MTudor Investment Corp Add

1,372 issuers qualify · counts are distinct notable managers · ≈ = a contributing change disclosed no value, so the sum is partial. The 50 highest-ranked are listed.

40 more issuers below.

Conviction leaders

NEW STAKES ≥2% OF BOOK · 2026-03-31
Filers ranked by the weight of their largest new position in 2026-03-31
#FilerLargest new weight, relativeLargest new≥2% / new
1BASS SID R100.0%1 at or above threshold / 1 new positions
2CONSOLIDATED PRESS INTERNATIONAL HOLDINGS LTD100.0%1 at or above threshold / 1 new positions
3GLADE BROOK CAPITAL PARTNERS LLC100.0%1 at or above threshold / 1 new positions
4Summit Rock Advisors, LP100.0%1 at or above threshold / 1 new positions
5AFBI LP100.0%1 at or above threshold / 1 new positions

Weight = a new position's reported value over the filer's complete reported 13F long book for the same quarter — ranked only over books where every position carries a value. 7,591 filers opened positions in 2026-03-31; 24 were not rankable because a position lacks a value. No returns are computed.

Recent activity

notable managers · newest filing first, then largest change
Quarter-over-quarter position changes by issuer, ordered by absolute reported change
KindShare change as classified from the filings; absence is not a sale record.NameIssuer as filed, with the position identity key.FilerReporting manager.Δ valueSigned change in reported value between the two quarters; an undisclosed side is stated, never zero.WtPosition weight is not available in this activity list.Position changeReported share change; not an inference of intent.SrcFiling date, reporting period, lag and record flags remain available in the source note.
trimANALOG DEVICES INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:15188MARKEL GROUP INC.+$71.5M-23,57413F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$71.5M
addVISA INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:13716MARKEL GROUP INC.+$44.3M+9,58113F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$44.3M
addWATSCO INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:18109MARKEL GROUP INC.+$37.3M+15,58113F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$37.3M
addMERCADOLIBRE INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:11377MARKEL GROUP INC.+$31.3M+18,55013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$31.3M
addHOME DEPOT INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:11561MARKEL GROUP INC.+$22.8M+2,50013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$22.8M
addROLLINS INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:12799MARKEL GROUP INC.−$16.7M+18,50013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · −$16.7M
addFRANCO NEV CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:11326MARKEL GROUP INC.−$13.8M+65,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · −$13.8M
addENTERPRISE PRODS PARTNERS LCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:14214MARKEL GROUP INC.+$13.3M+367,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$13.3M
addLINDE PLCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:13548MARKEL GROUP INC.+$10.5M+11,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$10.5M
addSUNBELT RENTALS HOLDINGS INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:18700MARKEL GROUP INC.+$10.2M+11,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$10.2M
trimMETA PLATFORMS INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:12241MARKEL GROUP INC.−$10.2M-14,14013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · −$10.2M
addLOWES COS INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:17070MARKEL GROUP INC.−$8.7M+13,50013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · −$8.7M
trimCOMCAST CORP NEWCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16006MARKEL GROUP INC.−$7.9M-159,80613F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · −$7.9M
addUNION PAC CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:15071MARKEL GROUP INC.+$7.3M+10,75013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$7.3M
addMARRIOTT INTL INC NEWCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:14677MARKEL GROUP INC.+$6.2M+5,75013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$6.2M
addHCA HEALTHCARE INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:17312MARKEL GROUP INC.−$6.1M+1,93613F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · −$6.1M
addCSX CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:17571MARKEL GROUP INC.+$6.0M+54,50013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$6.0M
newZOETIS INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:12755MARKEL GROUP INC.+$4.8M+66,19513F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$4.8M
addTYSON FOODS INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:15399MARKEL GROUP INC.−$4.7M+24,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · −$4.7M
addAIR PRODUCTS AND CHEMICALS ICUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:17427MARKEL GROUP INC.+$4.0M+13,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$4.0M
addTHERMO FISHER SCIENTIFIC INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16012MARKEL GROUP INC.+$3.7M+6,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$3.7M
addFERGUSON ENTERPRISES INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:18814MARKEL GROUP INC.+$2.9M+9,50013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$2.9M
newNETFLIX INC.CUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16326MARKEL GROUP INC.+$2.9M+40,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$2.9M
addNVR INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:19000MARKEL GROUP INC.+$2.8M+1013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$2.8M
addWEYERHAEUSER COCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:15814MARKEL GROUP INC.+$2.4M+102,50013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$2.4M
addCANADIAN PACIFIC KANSAS CITYCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:11266MARKEL GROUP INC.+$1.6M+13,50013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$1.6M
addSCHWAB CHARLES CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:17029MARKEL GROUP INC.−$1.4M+11,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · −$1.4M
addOTIS WORLDWIDE CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:15199MARKEL GROUP INC.+$732K+19,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$732K
newUFP INDUSTRIES INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:12985MARKEL GROUP INC.+$363K+4,00013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · +$363K
addEXXON MOBIL CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:15436MARKEL GROUP INC.−$304K+9,10013F ↗Quarter 2026-06-30 · filed 2026-07-31 — latest filed date over the current-period composition, accession 0001096343-26-000065 · +31d after quarter end · −$304K
newINVESCO QQQ TRUST SERIES 1CUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:12022OAKTREE CAPITAL MANAGEMENT LP+$329M+570,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · +$329M
exitVANECK SEMICONDUCTOR ETFCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16835OAKTREE CAPITAL MANAGEMENT LP−$312M-865,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$312M
exitSTATE STREET CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:12423OAKTREE CAPITAL MANAGEMENT LP−$263M-385,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$263M
exitIndivior Pharmaceuticals IncCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:11452OAKTREE CAPITAL MANAGEMENT LP−$255M-7,108,64413F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$255M
newINDIVIOR PHARMACEUTICALS INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:18425OAKTREE CAPITAL MANAGEMENT LP+$213M+6,984,10213F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · +$213M
newSTATE STREET SPDR S&P OIL & GAS EXPLORATION & PRODUCTION ETFprovisional position ida provisional per-position identifier the producer assigns when a reported row resolves to no security and carries no usable CUSIP — it identifies the ROW, and asserts nothing about what was held · key as published: sid:sec:prov:9886204f7314eeb6ea4d19d9d7721d16OAKTREE CAPITAL MANAGEMENT LP+$182M+1,000,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · +$182M
trimTORM PLCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16076OAKTREE CAPITAL MANAGEMENT LP+$148M-2,585,48413F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · +$148M
newPETROLEO BRASILEIRO SA - PETROBRASCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16256OAKTREE CAPITAL MANAGEMENT LP+$126M+6,089,41313F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · +$126M
exitFTAI AVIATION LTDCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16242OAKTREE CAPITAL MANAGEMENT LP−$102M-517,32813F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$102M
exitORACLE CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16970OAKTREE CAPITAL MANAGEMENT LP−$97.5M-500,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$97.5M
exitNU HOLDINGS LTD/CAYMAN ISLANDSCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16658OAKTREE CAPITAL MANAGEMENT LP−$75.0M-4,479,17513F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$75.0M
trimVIPER ENERGY INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:11440OAKTREE CAPITAL MANAGEMENT LP−$64.6M-2,493,63013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$64.6M
trimTALEN ENERGY CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16855OAKTREE CAPITAL MANAGEMENT LP−$64.6M-150,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$64.6M
exitCABLE ONE INCprovisional position ida provisional per-position identifier the producer assigns when a reported row resolves to no security and carries no usable CUSIP — it identifies the ROW, and asserts nothing about what was held · key as published: sid:sec:prov:214e3f3163de97967cacc415a9d82efaOAKTREE CAPITAL MANAGEMENT LP−$58.1M-58,874,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$58.1M
exitGRAB HOLDINGS LTDCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:15800OAKTREE CAPITAL MANAGEMENT LP−$55.9M-11,207,69913F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$55.9M
addAMERICAN WATER CAPITAL CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16944OAKTREE CAPITAL MANAGEMENT LP+$52.4M+52,495,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · +$52.4M
newCOINBASE GLOBAL INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:17262OAKTREE CAPITAL MANAGEMENT LP+$52.2M+52,633,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · +$52.2M
newCREDO TECHNOLOGY GROUP HOLDING LTDCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:16308OAKTREE CAPITAL MANAGEMENT LP+$50.6M+539,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · +$50.6M
exitAIRBNB INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:12525OAKTREE CAPITAL MANAGEMENT LP−$50.2M-50,633,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$50.2M
exitMARRIOTT INTERNATIONAL INC/MDCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:14677OAKTREE CAPITAL MANAGEMENT LP−$46.5M-150,00013F ↗Quarter 2026-03-31 · filed 2026-05-20 — latest filed date over the current-period composition this security is absent from, accession 0000949509-26-000004 · LATE·50d — filed 50 days after quarter end, past the 45-day deadline · −$46.5M

Showing the first 10 of the 50 rows on this page. These rows are the largest of 128,000 ordered change records published in this build (of 3,567,905 in the ordered set). The complete ordered set is served as 64 same-origin files under /institutional/data/activity/<page>.v1.json, each closed at whichever binds first — 2,000 records or 2,097,152 bytes of serialized JSON. Open the first file to reach every record directly, with or without scripting.

Truncated by Public Filings. The ordered set does not fit in this build's 64-file publication limit: 3,439,905 further records are not published here. The cut falls at a reported change of $18.2M in absolute value — filer CIK 0001759654, position CUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: pos:14600, LONG · SH. Everything below that boundary is absent from these published files and remains in the filings on EDGAR.
Quarter-over-quarter comparisons are between two quarter-end snapshots of what was reported — not a record of transactions, and not a claim about what any manager holds now.
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).

PLANNED sector rotation and its Congress comparison

Recently added issuers · explore published changes

Recently added issuers

quarter ended 2026-03-31

Which issuers 13F managers reported adding in a closed reporting quarter. The window is a quarter, never a rolling day count — quarterly filings cannot support one — and only quarters whose 45-day filing deadline has passed are offered, because an open quarter counts only the managers who filed early.

Quarter
Count
Issuers ranked by disclosed value added in the quarter ended 2026-03-31
#the rank number is produced by the active sort, not held by the row — ordering by it would be circular, so it renumbers with every sort instead"issuer" is an issuer key, not a ticker: its source may be a resolved entity link, a CUSIP-6 issuer block, or a normalized reported name, and each is a weaker claim than the one before it. The key and its source are printed so the strength of the identity is visiblea partial sum omits at least one position whose value the source did not disclose. It is a lower bound on what was added, never a total — and an issuer whose every contributing delta was undisclosed renders an em dash, never $0the top adder is the manager whose positions in this issuer sum to the largest disclosed increase this quarter — summed across every security of the issuer first, then ranked, so a manager holding several share classes is not split into pieces that each look small
1BERKSHIRE HATHAWAY INC DELCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: iss:3602,132221$274BMirae Asset Global Investments Co., Ltd.
2ISHARES TRCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: iss:12314,5424,705$248BBARCLAYS PLC
3STATE STR SPDR S&P 500 ETF TCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: iss:18972,016352$227BSUSQUEHANNA INTERNATIONAL GROUP, LLP
4ASTRAZENECA PLCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: iss:24331,2421,289$131BINVESTOR AB
5EXXON MOBIL CORPCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: iss:8792,165374$92.0BBlackRock, Inc.
6SPDR GOLD TRCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: iss:18991,353308$75.6BLMR Partners LLP
7MICRON TECHNOLOGY INCCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: iss:14761,718537$70.9BJANE STREET GROUP, LLC
8ISHARES TRCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: iss:12323,2432,647$67.6BUBS Group AG
9VANGUARD INDEX FDSissuer from CUSIP-6this issuer is keyed by its CUSIP-6 issuer block, not by a resolved entity — a weaker claim: it groups the issuer's securities without asserting which company record they belong to · key as published: cusip6:9229083,8731,372$63.5BRakuten Investment Management, Inc.
10CHEVRON CORPORATIONCUSIP withheldthis security has a reviewed ticker, so Public Filings publishes neither its CUSIP nor any key computed from it; the key shown is an opaque reference that only links this build's own files · key as published: iss:5722,197432$61.0BSTATE STREET CORP

1,990 more issuers below. Every issuer in this quarter's bounded payload remains in the published JSON.

This leaderboard is bounded by Public Filings, not by the data — the first omitted issuer had $188M across 172 managers (iss:254). Every issuer remains in the published aggregate.

Quarter-end positions, disclosed up to 45 days later; never current holdings, never a complete portfolio. Changes are classified from comparable reported positions; a missing position is not proof of a sale. How 13F data is read ↗