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OS

OneStream Inc
OS

Delisted

OS was delisted on the 31st of March, 2026.

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0 hedge funds and large institutions have $0 invested in OneStream Inc in 2026 Q2 according to their latest regulatory filings, with 0 funds opening new positions, 0 increasing their positions, 0 reducing their positions, and 171 closing their positions.

New
Increased
Maintained
Reduced
Closed

93.59% less ownership

Funds ownership: 93.59% → 0% (-94%)

100% less funds holding

Funds holding: 180 → 0 (-180)

100% less funds holding in top 10

Funds holding in top 10: 11 → 0 (-11)

100% less capital invested

Capital invested by funds: $2.23B → $0 (-$2.23B)

100% less first-time investments, than exits

New positions opened: 0 | Existing positions closed: 171

Holders
–
Holders Change
-180
Holders Change %
-100%
% of All Funds
–
Holding in Top 10
–
Holding in Top 10 Change
-11
Holding in Top 10 Change %
-100%
% of All Funds
–
New
–
Increased
–
Reduced
–
Closed
171
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

No buyers this quarter

Top Sellers

Rank Fund Capital Flow
1
Vanguard Portfolio Management
Vanguard Portfolio Management
Pennsylvania
-$118M
2
Temasek Holdings
Temasek Holdings
Singapore
-$102M
3
Fidelity International
Fidelity International
Bermuda
-$95.8M
4
Vanguard Capital Management
Vanguard Capital Management
Pennsylvania
-$93.2M
5
AA
AQR Arbitrage
Connecticut
-$81.4M
Name Holding Trade Value Shares
Change 		Change in
Stake
TCA
51
Taconic Capital Advisors
New York
– -$8.2M -341,528 Closed
AQR Capital Management
52
AQR Capital Management
Connecticut
– -$7.84M -326,514 Closed
TGA
53
TPG GP A
Texas
– -$7.8M -325,000 Closed
FLC
54
Fifth Lane Capital
Texas
– -$7.74M -322,630 Closed
TMAM
55
Tokio Marine Asset Management
Japan
– -$6.82M -284,300 Closed
PMAM
56
Picton Mahoney Asset Management
Ontario, Canada
– -$6.58M -274,000 Closed
TC
57
Trium Capital
United Kingdom
– -$6.55M -272,803 Closed
Northern Trust
58
Northern Trust
Illinois
– -$5.77M -240,517 Closed
AGWCA
59
Annis Gardner Whiting Capital Advisors
Florida
– -$5.46M -227,217 Closed
SG Americas Securities
60
SG Americas Securities
New York
– -$5.24M -218,311 Closed
NYLIM
61
New York Life Investment Management
New York
– -$5.18M -215,678 Closed
KC
62
Kryger Capital
United Kingdom
– -$4.85M -201,986 Closed
VI
63
Vestcor Inc
New Brunswick, Canada
– -$4.2M -175,000 Closed
Swiss National Bank
64
Swiss National Bank
Switzerland
– -$3.99M -166,100 Closed
MS
65
Maven Securities
Jersey
– -$3.36M -140,000 Closed
WAM
66
Wolverine Asset Management
Illinois
– -$2.95M -122,808 Closed
AG
67
Algert Global
California
– -$2.84M -118,200 Closed
UBS AM
68
UBS AM
Illinois
– -$2.79M -116,158 Closed
BNP Paribas Financial Markets
69
BNP Paribas Financial Markets
France
– -$2.71M -112,994 Closed
VCM
70
Voleon Capital Management
California
– -$2.63M -109,728 Closed
Jane Street
71
Jane Street
New York
– -$2.56M -106,508 Closed
WIC
72
Water Island Capital
New York
– -$2.19M -91,120 Closed
WPA
73
West Paces Advisors
Georgia
– -$2.05M -85,218 Closed
RAM
74
Readystate Asset Management
Illinois
– -$1.97M -82,162 Closed
VCP
75
Varenne Capital Partners
France
– -$1.85M -76,906 Closed
1 2
3
4 5

OS Hedge Fund Activity: Q2 2026 in Review

0 of the 8,153 institutional investors tracked by Wall St. Rank reported a position in OneStream Inc (OS) for Q2 2026, worth a combined $0 — down 100% from $2.23B a quarter earlier.

Sellers outnumbered buyers: 171 funds closed out of OS and 0 opened new positions — a net loss of 171 holders — while 0 trimmed existing stakes and 0 added.

The largest seller was Vanguard Portfolio Management, exiting entirely with an estimated $118M sold.

  • 0 institutional investors held OneStream Inc (OS) as of Q2 2026, down from 180 in Q1 2026.
  • Funds reported $0 of OneStream Inc stock for Q2 2026, down 100% quarter-over-quarter.
  • 0 funds opened new OneStream Inc positions in Q2 2026 and 171 closed out, a net change of -171 holders.
  • The largest OneStream Inc seller in Q2 2026 was Vanguard Portfolio Management, an estimated $118M sold.

Based on aggregated 13F filings for Q2 2026.