Vault-13

ONESTREAM INC OS

CL A · Common Stock · CUSIP 68278B107

188 institutional holders +45 vs Q1 2025
88,081,84188.1m shares reported held*
$2.5bnreported value*
63 new 78 added 31 reduced 18 sold out net bought ≈ $512.4m (+18.1m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.2m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $28.30. Options: 6 managers hold calls ($30.7m notional), 6 hold puts ($1.6m).

Trends to Q2 2025

Institutional holders

Managers reporting a position, each quarter

0100200Q3 24: 114Q4 24: 161Q1 25: 143Q2 25: 188188Q3 24Q4 24Q1 25Q2 25
Numbers
QuarterHolders
Q3 2024114
Q4 2024161
Q1 2025143
Q2 2025188

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q4 24: 125 bought or addedQ4 24: 42 cut or sold outQ4 24Q1 25: 100 bought or addedQ1 25: 74 cut or sold outQ1 25Q2 25: 141 bought or addedQ2 25: 49 cut or sold outQ2 25
Numbers
QuarterBought or addedCut or sold out
Q4 202412542
Q1 202510074
Q2 202514149

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$10m$20m$30m$40mQ3 24 calls: $3.7mQ3 24 puts: $1.2mQ3 24P/C 0.32Q4 24 calls: $16.5mQ4 24 puts: $342.2kQ4 24P/C 0.02Q1 25 calls: $15.8mQ1 25 puts: $825.3kQ1 25P/C 0.05Q2 25 calls: $30.7mQ2 25 puts: $1.6mQ2 25P/C 0.05
Numbers
QuarterCallsPutsP/C
Q3 2024$3.7m$1.2m0.32
Q4 2024$16.5m$342.2k0.02
Q1 2025$15.8m$825.3k0.05
Q2 2025$30.7m$1.6m0.05

Biggest buyers

VANGUARD GROUP INC Added +4,227,978+4.2m
GOLDMAN SACHS GROUP INC Added +2,520,572+2.5m
MARSHALL WACE, LLP Added +1,968,548+2.0m
ROYAL BANK OF CANADA Added +1,963,386+2.0m
WASATCH ADVISORS LP New +1,267,914+1.3m
BlackRock, Inc. Added +1,020,182+1.0m
VOLORIDGE INVESTMENT MANAGEMENT, LLC New +681,905+681.9k
MORGAN STANLEY Added +540,155+540.2k
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC Added +496,985+497.0k
CITADEL ADVISORS LLC Added +457,843+457.8k

Biggest sellers

ALKEON CAPITAL MANAGEMENT LLC Reduced -1,576,261-1.6m
NEUBERGER BERMAN GROUP LLC Reduced -568,356-568.4k
ALLIANCEBERNSTEIN L.P. Reduced -501,846-501.8k
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Reduced -419,200-419.2k
Champlain Investment Partners, LLC Reduced -262,599-262.6k
Point72 Asset Management, L.P. Sold out -239,821-239.8k
Aperture Investors, LLC Sold out -236,118-236.1k
Jain Global LLC Reduced -207,639-207.6k
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Reduced -203,900-203.9k
RAYMOND JAMES FINANCIAL INC Reduced -178,074-178.1k

Biggest calls

GROUP ONE TRADING LLC Added $19.1m675.2k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $4.5m159.0k shares
SIMPLEX TRADING, LLC Added $4.4m157.1k shares
JANE STREET GROUP, LLC Reduced $1.8m61.9k shares
CITADEL ADVISORS LLC Added $860.3k30.4k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $701.8k24.8k shares
SIMPLEX TRADING, LLC Added $331.0k11.7k shares
CITADEL ADVISORS LLC Reduced $305.6k10.8k shares
JANE STREET GROUP, LLC New $297.1k10.5k shares
GROUP ONE TRADING LLC Unchanged $11.3k400 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
KKR Dream Holdings LLC 13G · exempt (held before listing) filed 2025-02-12 67.5% 94.5m 2025-02-12
Shea Thomas Anthony 13G · exempt (held before listing) filed 2026-02-13 16.3% 18.2m 2026-02-13
Colby Craig 13G · exempt (held before listing) filed 2025-05-14 10.9% 9.1m 2025-05-14
GLAZER CAPITAL, LLC 13G · passive investor new · filed 2026-02-09 6.8% new 6.2m 2026-02-09

Fell to 5% or below in the last year: DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP (0.0%, 2026-05-15), T. Rowe Price Investment Management, Inc. (0.0%, 2026-05-15), KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC (0.0%, 2026-05-14), NORGES BANK (0.2%, 2026-05-11), VANGUARD GROUP INC (0.0%, 2026-03-27), Champlain Investment Partners, LLC (3.3%, 2026-02-12)

Holders, Q2 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 T. Rowe Price Investment Management, Inc. 0.16% of their portfolio BALTIMORE, MD 9,025,4999.0m $255.4m $255.4m 0.16% Added +87.8k +87,817
2 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 7,819,4317.8m $221.3m $221.3m 0.00% Added +4.2m +4,227,978
3 KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.46% of their portfolio LOS ANGELES, CA 6,875,1156.9m $194.6m $194.6m 0.46% Added +497.0k +496,985
4 NORGES BANK 0.02% of their portfolio OSLO, Q8 6,343,5926.3m $179.5m $179.5m 0.02% Added +103.8k +103,831
5 DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP 3.46% of their portfolio GREENBRAE, CA 3,839,4053.8m $108.7m $108.7m 3.46% Unchanged
6 Champlain Investment Partners, LLC 0.75% of their portfolio BURLINGTON, VT 3,774,9963.8m $106.8m $106.8m 0.75% Reduced -262.6k -262,599
7 GOLDMAN SACHS GROUP INC 0.02% of their portfolio NEW YORK, NY 3,623,2093.6m $102.5m $102.5m 0.02% Added +2.5m +2,520,572
8 Temasek Holdings (Private) Ltd 0.32% of their portfolio SINGAPORE, U0 2,956,3603.0m $83.7m $83.7m 0.32% Unchanged
9 TimesSquare Capital Management, LLC 1.09% of their portfolio NEW YORK, NY 2,666,7512.7m $75.5m $75.5m 1.09% Reduced -32.9k -32,894
10 BROWN ADVISORY INC 0.10% of their portfolio BALTIMORE, MD 2,602,1542.6m $73.6m $73.6m 0.10% Added +157.3k +157,257
11 ALLIANCEBERNSTEIN L.P. 0.02% of their portfolio NASHVILLE, TN 2,345,4342.3m $66.4m $66.4m 0.02% Reduced -501.8k -501,846
12 BlackRock, Inc. 0.00% of their portfolio New York, NY 2,049,8752.0m $58.0m $58.0m 0.00% Added +1.0m +1,020,182
13 ROYAL BANK OF CANADA 0.01% of their portfolio TORONTO, A6 2,027,1542.0m $57.4m $57.4m 0.01% Added +2.0m +1,963,386
14 MARSHALL WACE, LLP 0.07% of their portfolio LONDON, X0 1,989,1022.0m $56.3m $56.3m 0.07% Added +2.0m +1,968,548
15 AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio KANSAS CITY, MO 1,653,1791.7m $46.8m $46.8m 0.03% Added +345.6k +345,566
16 NEUBERGER BERMAN GROUP LLC 0.03% of their portfolio NEW YORK, NY 1,549,6601.5m $43.9m $43.9m 0.03% Reduced -568.4k -568,356
17 WASATCH ADVISORS LP 0.19% of their portfolio SALT LAKE CITY, UT 1,267,9141.3m $35.9m $35.9m 0.19% New
18 CITADEL ADVISORS LLC 0.03% of their portfolio MIAMI, FL 1,210,1131.2m $34.2m $34.2m 0.03% Added +457.8k +457,843
19 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 1,063,7841.1m $30.1m $30.1m 0.01% Reduced -419.2k -419,200
20 ALKEON CAPITAL MANAGEMENT LLC 0.13% of their portfolio New York, NY 950,000950.0k $26.9m $26.9m 0.13% Reduced -1.6m -1,576,261
21 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.05% of their portfolio TORONTO, A6 950,000950.0k $26.9m $26.9m 0.05% Reduced -203.9k -203,900
22 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 946,352946.4k $26.8m $26.8m 0.00% Added +264.0k +264,016
23 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 938,295938.3k $26.6m $26.6m 0.00% Added +540.2k +540,155
24 FEDERATED HERMES, INC. 0.05% of their portfolio PITTSBURGH, PA 850,000850.0k $24.1m $24.1m 0.05% Unchanged
25 SEVEN GRAND MANAGERS, LLC 2.89% of their portfolio BRONXVILLE, NY 850,000850.0k $24.1m $24.1m 2.89% Added +350.0k +350,000
26 Alyeska Investment Group, L.P. 0.08% of their portfolio CHICAGO, IL 800,000800.0k $22.6m $22.6m 0.08% Added +72.6k +72,575
27 MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio NEW YORK, NY 787,594787.6k $22.3m $22.3m 0.02% Added +442.7k +442,658
28 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 753,675753.7k $21.3m $21.3m 0.00% Added +175.6k +175,558
29 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 722,341722.3k $20.4m $20.4m 0.00% Added +203.5k +203,511
30 VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.07% of their portfolio JUPITER, FL 681,905681.9k $19.3m $19.3m 0.07% New
31 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 668,940668.9k $18.9m $18.9m 0.00% Added +61.4k +61,432
32 SOROS FUND MANAGEMENT LLC 0.30% of their portfolio NEW YORK, NY 625,800625.8k $17.7m $17.7m 0.30% Added +157.9k +157,950
33 Burkehill Global Management, LP 1.25% of their portfolio NEW YORK, NY 600,000600.0k $17.0m $17.0m 1.25% Unchanged
34 Qube Research & Technologies Ltd 0.02% of their portfolio LONDON, X0 568,518568.5k $16.1m $16.1m 0.02% Added +115.7k +115,687
35 Clearbridge Investments, LLC 0.01% of their portfolio NEW YORK, NY 549,003549.0k $15.5m $15.5m 0.01% Added +8.8k +8,785
36 TD Asset Management Inc 0.01% of their portfolio Toronto, A6 500,266500.3k $14.2m $14.2m 0.01% Added +318 +318
37 BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio PARIS, I0 489,943489.9k $13.9m $13.9m 0.01% Added +355.6k +355,586
38 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 435,288435.3k $12.3m $12.3m 0.00% Added +142.1k +142,072
39 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 371,251371.3k $10.5m $10.5m 0.01% Added +342.9k +342,875
40 JACOBS LEVY EQUITY MANAGEMENT, INC 0.04% of their portfolio FLORHAM PARK, NJ 366,734366.7k $10.4m $10.4m 0.04% Reduced -120.6k -120,576
41 Walleye Capital LLC 0.09% of their portfolio NEW YORK, NY 360,005360.0k $10.2m $10.2m 0.09% New
42 Sculptor Capital LP 0.16% of their portfolio New York, NY 350,000350.0k $9.9m $9.9m 0.16% New
43 KING LUTHER CAPITAL MANAGEMENT CORP 0.04% of their portfolio FORT WORTH, TX 341,178341.2k $9.7m $9.7m 0.04% Added +6.0k +6,000
44 SEI INVESTMENTS CO 0.01% of their portfolio OAKS, PA 334,322334.3k $9.5m $9.5m 0.01% Added +69.2k +69,185
45 CITIGROUP INC 0.01% of their portfolio NEW YORK, NY 331,541331.5k $9.4m $9.4m 0.01% Added +328.8k +328,835
46 UBS Group AG 0.00% of their portfolio ZURICH, V8 330,579330.6k $9.4m $9.4m 0.00% Added +241.0k +241,040
47 Trexquant Investment LP 0.11% of their portfolio STAMFORD, CT 329,803329.8k $9.3m $9.3m 0.11% Added +103.0k +102,970
48 Ghisallo Capital Management LLC 0.22% of their portfolio BOSTON, MA 300,000300.0k $8.2m $8.2m 0.22% New
49 VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio ATLANTA, GA 258,834258.8k $7.3m $7.3m 0.01% New
50 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 255,773255.8k $7.2m $7.2m 0.00% Added +52.9k +52,875
51 Jain Global LLC 0.09% of their portfolio NEW YORK, NY 205,764205.8k $5.8m $5.8m 0.09% Reduced -207.6k -207,639
52 Centiva Capital, LP 0.38% of their portfolio New York, NY 204,950204.9k $5.8m $5.8m 0.38% New
53 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 199,054199.1k $5.6m $5.6m 0.00% Added +68.8k +68,784
54 Fortress Investment Group LLC 0.80% of their portfolio NEW YORK, NY 198,846198.8k $5.6m $5.6m 0.80% Added +188.8k +188,846
55 CIBC Private Wealth Group LLC 0.01% of their portfolio ATLANTA, GA 194,051194.1k $5.5m $5.5m 0.01% Added +23.9k +23,883
56 JANE STREET GROUP, LLC 0.01% of their portfolio NEW YORK, NY 184,424184.4k $5.2m $5.2m 0.01% New
57 Balyasny Asset Management L.P. 0.01% of their portfolio Chicago, IL 182,480182.5k $5.2m $5.2m 0.01% New
58 CAPSTONE INVESTMENT ADVISORS, LLC 0.04% of their portfolio NEW YORK, NY 175,000175.0k $5.0m $5.0m 0.04% New
59 2Xideas AG 0.85% of their portfolio KUSNACHT, V8 174,621174.6k $4.9m $4.9m 0.85% New
60 Woodline Partners LP 0.03% of their portfolio San Francisco, CA 169,643169.6k $4.8m $4.8m 0.03% Added +35.7k +35,743
61 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 162,011162.0k $4.6m $4.6m 0.01% Added +2.8k +2,808
62 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 160,089160.1k $4.5m $4.5m 0.00% Added +104.7k +104,727
63 Swiss National Bank 0.00% of their portfolio ZURICH, V8 136,400136.4k $3.9m $3.9m 0.00% Added +57.0k +57,000
64 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 134,876134.9k $3.8m $3.8m 0.00% Added +4.5k +4,513
65 Man Group plc 0.01% of their portfolio LONDON, X0 125,000125.0k $3.5m $3.5m 0.01% Added +113.5k +113,506
66 BOOTHBAY FUND MANAGEMENT, LLC 0.10% of their portfolio NEW YORK, NY 120,905120.9k $3.4m $3.4m 0.10% Added +50.9k +50,905
67 Daiwa Securities Group Inc. 0.01% of their portfolio CHIYODA-KU,TOKYO, M0 111,950112.0k $3.2m $3.2m 0.01% Added +11.1k +11,084
68 PRIMECAP MANAGEMENT CO/CA/ 0.00% of their portfolio PASADENA, CA 105,900105.9k $3.0m $3.0m 0.00% Reduced -39.2k -39,200
69 Holocene Advisors, LP 0.01% of their portfolio New York, NY 105,848105.8k $3.0m $3.0m 0.01% Reduced -1.2k -1,225
70 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 88,50688.5k $2.5m $2.5m 0.00% Reduced -178.1k -178,074
71 WEST PACES ADVISORS INC. 0.51% of their portfolio ATLANTA, GA 85,10885.1k $2.4m $2.4m 0.51% Unchanged
72 Nebula Research & Development LLC 0.20% of their portfolio New York, NY 83,31583.3k $2.4m $2.4m 0.20% Added +55.3k +55,306
73 Voleon Capital Management LP 0.13% of their portfolio BERKELEY, CA 81,76581.8k $2.3m $2.3m 0.13% Added +15.0k +15,012
74 AZZAD ASSET MANAGEMENT INC /ADV 0.25% of their portfolio FALLS CHURCH, VA 81,11881.1k $2.3m $2.3m 0.25% Added +1.8k +1,765
75 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 74,01074.0k $2.1m $2.1m 0.00% Added +9.6k +9,582
76 Longaeva Partners L.P. 0.45% of their portfolio Chicago, IL 66,06966.1k $1.9m $1.9m 0.45% New
77 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio COLUMBUS, OH 65,21065.2k $1.8m $1.8m 0.01% New
78 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 65,07565.1k $1.8m $1.8m 0.00% Added +31.5k +31,534
79 BESSEMER GROUP INC 0.00% of their portfolio WOODBRIDGE, NJ 64,91364.9k $1.8m $1.8m 0.00% Added +20 +20
80 Legal & General Group Plc 0.00% of their portfolio London, X0 64,20164.2k $1.8m $1.8m 0.00% Added +28.7k +28,703
81 XTX Topco Ltd 0.08% of their portfolio LONDON, X0 64,12064.1k $1.8m $1.8m 0.08% Added +34.1k +34,058
82 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 60,49960.5k $1.7m $1.7m 0.00% New
83 ALGERT GLOBAL LLC 0.04% of their portfolio SAN FRANCISCO, CA 59,62059.6k $1.7m $1.7m 0.04% New
84 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 56,96857.0k $1.6m $1.6m 0.00% Reduced -14.9k -14,911
85 Quantbot Technologies LP 0.04% of their portfolio NEW YORK, NY 56,69056.7k $1.6m $1.6m 0.04% New
86 M&T Bank Corp 0.01% of their portfolio BUFFALO, NY 53,82953.8k $1.5m $1.5m 0.01% Added +17.4k +17,396
87 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 52,83252.8k $1.5m $1.5m 0.00% New
88 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 49,95050.0k $1.4m $1.4m 0.00% New
89 EFG Asset Management (North America) Corp. 0.20% of their portfolio Portland, OR 49,78849.8k $1.4m $1.4m 0.20% New
90 Renaissance Capital LLC 0.93% of their portfolio Stamford, CT 46,94046.9k $1.3m $1.3m 0.93% Reduced -36.6k -36,624
91 FMR LLC 0.00% of their portfolio BOSTON, MA 45,64345.6k $1.3m $1.3m 0.00% Reduced -1.8k -1,751
92 TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio STAMFORD, CT 44,62144.6k $1.3m $1.3m 0.01% New
93 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 42,48842.5k $1.2m $1.2m 0.00% Reduced -2.3k -2,279
94 DIVERSIFIED TRUST CO 0.03% of their portfolio MEMPHIS, TN 42,22742.2k $1.2m $1.2m 0.03% Added +202 +202
95 TWINBEECH CAPITAL LP 0.03% of their portfolio PURCHASE, NY 39,13239.1k $1.1m $1.1m 0.03% New
96 NORDEN GROUP LLC 0.12% of their portfolio PROVO, UT 38,38938.4k $1.1m $1.1m 0.12% Added +16.5k +16,483
97 CenterBook Partners LP 0.06% of their portfolio GREENWICH, CT 38,31138.3k $1.1m $1.1m 0.06% Added +9.4k +9,370
98 Montis Financial, LLC 0.30% of their portfolio WALTHAM, MA 37,75937.8k $1.1m $1.1m 0.30% Unchanged
99 Weiss Asset Management LP 0.02% of their portfolio BOSTON, MA 36,45136.5k $1.0m $1.0m 0.02% Not comparable
100 Dakota Wealth Management 0.02% of their portfolio PALM BEACH GARDENS, FL 35,20235.2k $996.2k $996.2k 0.02% New