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227 hedge funds and large institutions have $554M invested in Ouster in 2026 Q1 according to their latest regulatory filings, with 51 funds opening new positions, 96 increasing their positions, 49 reducing their positions, and 42 closing their positions.

New
Increased
Maintained
Reduced
Closed

105% more call options, than puts

Call options by funds: $57.3M | Put options by funds: $27.9M

96% more repeat investments, than reductions

Existing positions increased: 96 | Existing positions reduced: 49

21% more first-time investments, than exits

New positions opened: 51 | Existing positions closed: 42

2% more funds holding

Funds holding: 223227 (+4)

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

2.48% less ownership

Funds ownership: 50.15%47.67% (-2.5%)

15% less capital invested

Capital invested by funds: $652M → $554M (-$97.3M)

Holders
227
Holders Change
+4
Holders Change %
+1.79%
% of All Funds
2.8%
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.01%
New
51
Increased
96
Reduced
49
Closed
42
Calls
$57.3M
Puts
$27.9M
Net Calls
+$29.3M
Net Calls Change
-$12.3M
Name Holding Trade Value Shares
Change
Change in
Stake
RFP
226
Root Financial Partners
California
$331 +$392 +18 New
SPC
227
Slate Path Capital
New York
-$17.9M -829,000 Closed
Millennium Management
228
Millennium Management
New York
-$8.68M -401,185 Closed
Jane Street
229
Jane Street
New York
-$8.42M -386,354 Closed
SAM
230
Storebrand Asset Management
Norway
-$8.03M -370,882 Closed
Tudor Investment Corp
231
Tudor Investment Corp
Connecticut
-$3.39M -156,517 Closed
PCM
232
Portolan Capital Management
Massachusetts
-$3.14M -145,148 Closed
TI
233
Trexquant Investment
Connecticut
-$2.99M -138,101 Closed
Victory Capital Management
234
Victory Capital Management
Texas
-$2.11M -97,346 Closed
Verition Fund Management
235
Verition Fund Management
Connecticut
-$1.99M -91,942 Closed
ECM
236
ExodusPoint Capital Management
New York
-$1.98M -91,437 Closed
EGM
237
Engineers Gate Manager
New York
-$1.97M -90,951 Closed
CP
238
CenterBook Partners
Connecticut
-$1.63M -75,112 Closed
Qube Research & Technologies (QRT)
239
Qube Research & Technologies (QRT)
United Kingdom
-$1.57M -72,387 Closed
BA
240
Bridgewater Associates
Connecticut
-$1.45M -66,786 Closed
MMEA
241
Main Management ETF Advisors
California
-$1.19M -54,810 Closed
WA
242
Waverly Advisors
Alabama
-$959K -44,299 Closed
JF
243
Jump Financial
Illinois
-$727K -33,616 Closed
HF
244
HRT Financial
New York
-$726K -33,333 Closed
IMC Chicago
245
IMC Chicago
Illinois
-$577K -26,470 Closed
FCH
246
Freestone Capital Holdings
Washington
-$486K -22,469 Closed
SO
247
STRS Ohio
Ohio
-$418K -19,300 Closed
EI
248
EAM Investors
California
-$416K -19,217 Closed
IQI
249
Integrated Quantitative Investments
Washington
-$347K -16,023 Closed
FGP
250
Freestone Grove Partners
California
-$334K -15,422 Closed