Ouster
OUST
229 hedge funds and large institutions have $555M invested in Ouster in 2026 Q1 according to their latest regulatory filings, with 53 funds opening new positions, 97 increasing their positions, 48 reducing their positions, and 42 closing their positions.
105% more call options, than puts
Call options by funds: $57.3M | Put options by funds: $27.9M
102% more repeat investments, than reductions
Existing positions increased: 97 | Existing positions reduced: 48
88% more capital inflows, than outflows
Capital inflows: $214M | Capital outflows: $114M
26% more first-time investments, than exits
New positions opened: 53 | Existing positions closed: 42
3% more funds holding
Funds holding: 223 → 229 (+6)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
2.44% less ownership
Funds ownership: 50.13% → 47.69% (-2.4%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Mirae Asset Global ETFs Holdings
Causeway Bay,
Hong Kong
|
+$10.7M |
| 2 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$10.6M |
| 3 |
Goldman Sachs
New York
|
+$9.9M |
| 4 |
Bastion Asset Management
Montreal,
Canada
|
+$5.97M |
| 5 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$4.5M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Slate Path Capital
New York
|
-$17.9M |
| 2 |
Millennium Management
New York
|
-$8.68M |
| 3 |
Jane Street
New York
|
-$8.42M |
| 4 |
Storebrand Asset Management
Lysaker,
Norway
|
-$8.03M |
| 5 |
Squarepoint
New York
|
-$7.41M |
OUST Hedge Fund Activity: Q1 2026 in Review
229 of the 8,214 institutional investors tracked by Wall St. Rank reported a position in Ouster (OUST) for Q1 2026, worth a combined $555M — down 15% from $651M a quarter earlier.
Buyers outnumbered sellers: 53 funds opened new OUST positions and 42 closed out — a net gain of 11 holders — while 97 added to existing stakes and 48 trimmed.
The largest buyer was Mirae Asset Global ETFs Holdings, adding an estimated $10.7M. The largest seller was Slate Path Capital, exiting entirely with an estimated $17.9M sold.
- 229 institutional investors held Ouster (OUST) as of Q1 2026, up from 223 in Q4 2025.
- Funds reported $555M of Ouster stock for Q1 2026, down 15% quarter-over-quarter.
- 53 funds opened new Ouster positions in Q1 2026 and 42 closed out, a net change of +11 holders.
- The largest Ouster buyer in Q1 2026 was Mirae Asset Global ETFs Holdings, an estimated $10.7M added.
- The largest Ouster seller in Q1 2026 was Slate Path Capital, an estimated $17.9M sold.
Based on aggregated 13F filings for Q1 2026.