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Disclosery

OS ONESTREAM INC

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CL A (common)

171 managers (180 13F filers) reported a position in OS shares at 2026-03-31, 93,406,062 shares in all. 76 filers opened a position and 85 filers sold out during the quarter.

Managers
171
13F filers
180
New
76
Added
49
Reduced
34
Sold out
85
Shares held by filers
93,406,062

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 6 filers holding9,401,587$226MnewTimeline
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC7,537,536$181M3.84%new13F-HRTimelineGroup
Temasek Holdings (Private) Ltdin group Temasek Holdings (Private) Ltd4,266,714$102M0.34%013F-HRTimelineGroup
FIL Ltdin group FIL Ltd3,992,145$95.8M0.07%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCgroup of 2 filers holding3,719,881$89.3M+3,429,455Timeline
NEXPOINT ASSET MANAGEMENT, L.P.in group NEXPOINT ASSET MANAGEMENT, L.…3,358,217$80.6M5.62%new13F-HRTimelineGroup
O'Connor Alternative Investments LLC3,186,804$76.5M4.01%13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Polar Asset Management Partners Inc.2,944,378$70.7M1.68%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC2,471,107$59.3M0.04%+2,135,52613F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding2,373,227$57M+1,789,303Timeline
BlackRock, Inc.in group BlackRock, Inc.2,339,550$56.1M<0.01%+233,73713F-HRTimelineGroup
Man Group plcin group Man Group plc2,204,520$52.9M0.11%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,985,820$47.7M0.01%+1,281,66913F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC1,890,118$45.4M0.03%-382,19313F-HRTimelineGroup
Pentwater Capital Management LP1,890,000$45.4M0.32%new13F-HRTimeline
First Trust Capital Management L.P.in group FIRST TRUST ADVISORS LP1,842,189$44.2M2.32%new13F-HRTimelineGroup
SOROS FUND MANAGEMENT LLCin group SOROS FUND MANAGEMENT LLC1,830,222$43.9M0.6%+1,500,22213F-HRTimelineGroup
TIG Advisors, LLCin group TIG Advisors, LLC1,738,231$41.7M1.99%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY1,651,031$39.6M<0.01%+709,68713F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC1,595,839$38.3M0.02%+1,556,36613F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,467,884$35.2M<0.01%+1,183,22313F-HR/ATimelineGroup
ODDO BHF ASSET MANAGEMENT SAS1,450,000$34.8M1.37%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…1,234,961$29.6M0.05%+634,96113F-HRTimeline
ALLIANCEBERNSTEIN L.P.1,535,061$28.2M0.01%new13F-HRTimeline
Qube Research & Technologies Ltd1,133,221$27.2M0.04%+373,46213F-HRTimeline
CITIGROUP INCin group CITIGROUP INC1,103,394$26.5M0.02%+824,29413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,099,122$26.4M<0.01%+32,84413F-HRTimelineGroup
Capula Management Ltdin group Capula Management Ltd1,074,711$25.8M0.22%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
MARSHALL WACE, LLPin group MARSHALL WACE, LLP990,806$23.8M0.03%-1,795,34913F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…984,652$23.6M0.03%+857,44413F-HRTimelineGroup
GAMCO Investors (Gabelli)group of 3 filers holding946,955$22.7MnewTimeline
ALPINE ASSOCIATES MANAGEMENT INC.920,692$22.1M1.3%new13F-HRTimeline
Verition Fund Management LLC862,413$20.7M0.2%+848,71313F-HRTimeline
Meteora Capital, LLC861,800$20.7M1.53%new13F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management817,569$19.6M0.04%+407,94413F-HRTimelineGroup
SYQUANT CAPITAL SAS789,449$18.9M2.96%new13F-HRTimeline
Nearwater Capital Markets, Ltd707,800$17M0.4%new13F-HRTimeline
Fort Baker Capital Management LP689,587$16.6M1.47%new13F-HRTimeline
Westchester Capital Management, LLCin group Westchester Capital Managemen…677,498$16.3M0.79%new13F-HRTimelineGroup
Grantham, Mayo, Van Otterloo & Co. LLC676,553$16.2M0.04%new13F-HRTimeline
Alberta Investment Management Corp674,500$16.2M0.1%+600,00013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/623,975$15M<0.01%+234,84813F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP600,024$14.4M<0.01%-152,55213F-HRTimelineGroup
CIBRA Capital Ltd519,691$12.5M6.02%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC518,231$12.4M0.03%new13F-HRTimelineGroup
Groupe la Francaisein group Groupe la Francaise509,500$12.2M0.17%new13F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co499,512$12M<0.01%+27,94813F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC396,426$9.51M0.22%+194,16913F-HRTimeline
Carmignac Gestion384,893$9.24M0.14%new13F-HRTimeline
CREDIT INDUSTRIEL ET COMMERCIAL365,500$8.77M1.4%new13F-HRTimeline
Taconic Capital Advisors LPin group Taconic Capital Advisors LP341,528$8.2M5.61%new13F-HR/ATimelineGroup
TPG GP A, LLCin group TPG GP A, LLC325,000$7.8M0.21%new13F-HRTimelineGroup
FIFTH LANE CAPITAL, LP322,630$7.74M9.4%new13F-HRTimeline
TOKIO MARINE ASSET MANAGEMENT CO LTDin group TOKIO MARINE HOLDINGS, INC.284,300$6.82M0.24%new13F-HRTimelineGroup
PICTON MAHONEY ASSET MANAGEMENT274,000$6.58M0.07%new13F-HRTimeline
Trium Capital LLP272,803$6.55M4.75%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Absolute Gestao de Investimentos Ltda.245,160$5.88M0.67%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP240,517$5.77M<0.01%+9,33913F-HRTimelineGroup
Annis Gardner Whiting Capital Advisors,…227,217$5.46M0.87%+20,93313F-HRTimeline
SG Americas Securities, LLC218,311$5.24M0.01%-56,47713F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…215,678$5.18M0.04%new13F-HRTimelineGroup
Kryger Capital LLC201,986$4.85M0.34%13F-HRTimeline
Vestcor Inc175,000$4.2M0.12%new13F-HRTimeline
Swiss National Bank166,100$3.99M<0.01%+9,60013F-HRTimeline
Maven Securities LTDin group Maven Securities LTD140,000$3.36M0.19%new13F-HRTimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC122,808$2.95M0.05%new13F-HRTimelineGroup
ALGERT GLOBAL LLC118,200$2.84M0.04%013F-HR/ATimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS112,994$2.71M<0.01%+28,47613F-HRTimelineGroup
Voleon Capital Management LP109,728$2.63M0.06%+95,42913F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC106,508$2.56M<0.01%-133,53313F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…91,857$2.2M<0.01%+21,28613F-HRTimeline
WATER ISLAND CAPITAL LLC91,120$2.19M0.29%new13F-HRTimeline
WEST PACES ADVISORS INC.85,218$2.05M0.4%013F-HRTimeline
READYSTATE ASSET MANAGEMENT LP82,162$1.97M0.12%-46,80813F-HRTimeline
Varenne Capital Partners76,906$1.85M0.46%new13F-HRTimeline
CSS LLC/IL65,508$1.57M0.09%new13F-HRTimeline
Yakira Capital Management, Inc.60,978$1.46M0.43%new13F-HRTimeline
Twin Securities, Inc.60,372$1.45M0.72%new13F-HRTimeline
LMR Partners LLPin group LMR Partners LLP56,035$1.34M0.01%new13F-HRTimelineGroup
Fieldview Capital Management, LLC54,807$1.32M0.38%+39,53613F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc52,631$1.26M<0.01%-14,24213F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…50,000$1.2M0.01%new13F-HRTimeline
IEQ CAPITAL, LLC47,170$1.13M0.01%new13F-HRTimeline
FMR LLCin group FMR LLC45,762$1.1M<0.01%+70113F-HRTimelineGroup
Transmarket Holdings LP42,726$1.03M0.55%new13F-HRTimeline
Kintayl Capital LP42,508$1.02M0.63%new13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.37,775$907K<0.01%-432,99013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD37,487$900K<0.01%-114,11713F-HRTimeline
Versor Investments LP33,832$812K1.99%new13F-HRTimeline
Schonfeld Strategic Advisors LLC33,709$809K0.01%+19,95513F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC33,072$794K<0.01%-136,24213F-HRTimelineGroup
OXFORD ASSET MANAGEMENT LLP30,350$728K0.29%-1,58813F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…27,198$653K0.01%+16,97413F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp26,216$629K<0.01%-200,03213F-HRTimelineGroup
PEAPACK GLADSTONE FINANCIAL CORP25,400$610K0.01%-4,10013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC25,159$604K<0.01%+3,97813F-HRTimelineGroup
CWM, LLCin group CWM, LLC24,307$583K<0.01%+14,45413F-HRTimelineGroup
Catalyst Funds Management Pty Ltd24,200$581K0.1%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC23,767$570K<0.01%new13F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM23,069$554K<0.01%+72713F-HRTimeline
GSA CAPITAL PARTNERS LLP22,728$545K0.03%new13F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)22,000$528K0.01%new13F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/21,355$513K<0.01%+1,50013F-HRTimeline
Handelsbanken Fonder AB21,300$511K<0.01%013F-HRTimeline
Institute for Wealth Management, LLC.20,484$492K0.05%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…20,055$481K<0.01%+1,84513F-HRTimeline
PRIMECAP MANAGEMENT CO/CA/19,500$468K<0.01%-10013F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC18,266$438K<0.01%new13F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC16,779$403K<0.01%+3,34113F-HRTimelineGroup
Mint Tower Capital Management B.V.15,874$381K0.04%new13F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…14,769$354K<0.01%+1,48513F-HRTimelineGroup
Quantbot Technologies LP14,382$345K0.01%new13F-HRTimeline
Montis Financial, LLC13,436$322K0.07%013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC12,963$311K<0.01%-15,52413F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…12,793$307K<0.01%-58,12913F-HRTimelineGroup
Yorktown Management & Research Co Inc12,300$295K0.25%new13F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV11,693$281K<0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN11,115$267K<0.01%-411,70413F-HR/ATimelineGroup
Cetera Investment Advisers10,945$263K<0.01%-30,71013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS10,810$259K<0.01%new13F-HRTimeline
Murchinson Ltd.10,100$242K0.1%new13F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…10,067$242K0.02%new13F-HRTimelineGroup
Gotham Asset Management, LLC9,999$240K<0.01%new13F-HRTimeline
PRAXIS INVESTMENT MANAGEMENT INC9,516$228K0.01%new13F-HRTimeline
Blue Trust, Inc.9,137$219K<0.01%-2,07813F-HRTimeline
LPL Financial LLC8,703$209K<0.01%-9,68613F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC8,351$200K<0.01%-133,25013F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\5,827$140K<0.01%-78,19913F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\5,730$138K<0.01%-11,97213F-HRTimelineGroup
SIMPLEX TRADING, LLC4,363$105K<0.01%-24,69513F-HRTimeline
PenderFund Capital Management Ltd.3,900$93.6K0.01%new13F-HRTimeline
Advisors Asset Management, Inc.3,678$88.3K<0.01%-2113F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…3,626$87K<0.01%+95313F-HR/ATimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA3,333$80K<0.01%-211,11013F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…3,051$73.2K<0.01%new13F-HRTimelineGroup
KBC Group NVin group KBC Group NV2,053$49K<0.01%013F-HRTimelineGroup
Manchester Capital Management LLC2,000$48K0.01%013F-HRTimeline
RHUMBLINE ADVISERS1,625$39K<0.01%013F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,475$35.4K<0.01%+47713F-HRTimelineGroup
Essential Partners LLC1,233$29.6K0.01%+42513F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,143$27.4K<0.01%-3,45913F-HRTimelineGroup
IFP Advisors, Inc700$16.8K<0.01%+3913F-HRTimeline
Allworth Financial LP683$16.4K<0.01%+33213F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.659$15.8K<0.01%-4,29813F-HRTimelineGroup
ExodusPoint Capital Management, LP619$14.9K<0.01%-442,23213F-HRTimeline
SALEM INVESTMENT COUNSELORS INC500$12K<0.01%new13F-HR/ATimeline
ROTHSCHILD INVESTMENT LLC377$9.05K<0.01%+26413F-HRTimeline
ARMSTRONG ADVISORY GROUP, INC370$8.88K<0.01%013F-HRTimeline
Arax Advisory Partners351$8.42K<0.01%new13F-HRTimeline
Root Financial Partners, LLC337$8.09K<0.01%new13F-HRTimeline
GAMMA Investing LLC305$7.32K<0.01%+26013F-HRTimeline
Parallel Advisors, LLC293$7.03K<0.01%+23213F-HR/ATimeline
Farther Finance Advisors, LLC189$4.54K<0.01%+17013F-HRTimeline
Richardson Capital Management LLC146$3.5K<0.01%new13F-HRTimeline
Fourth Dimension Wealth, LLC140$3.36K<0.01%013F-HRTimeline
MAI Capital Management85$2.04K<0.01%new13F-HRTimeline
Wealth Preservation Advisors, LLC85$2.04K<0.01%new13F-HRTimeline
True Wealth Design, LLC74$1.78K<0.01%-1113F-HRTimeline
KAYNE ANDERSON RUDNICK INVESTMENT MANAG…67$1.61K<0.01%-4,867,56913F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…52$1.25K<0.01%-35813F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…50$1.2K<0.01%013F-HRTimelineGroup
INTERNATIONAL ASSETS INVESTMENT MANAGEM…44$1.06K<0.01%new13F-HRTimeline
Marquette Asset Management, LLC42$1.01K<0.01%-5013F-HRTimeline
Capital Advisors, Ltd. LLC45$1K<0.01%new13F-HRTimeline
Sunbelt Securities, Inc.35$840<0.01%+2513F-HRTimeline
Fairman Group, LLC34$816<0.01%013F-HRTimeline
SJS Investment Consulting Inc.28$672<0.01%+1813F-HRTimeline
CVA Family Office, LLC21$504<0.01%new13F-HRTimeline
Advisory Services Network, LLC5$120<0.01%new13F-HRTimeline
TD Waterhouse Canada Inc.3$72<0.01%new13F-HRTimeline
Dunhill Financial, LLC1$41<0.01%-113F-HRTimeline