One Stop Systems
OSS
77 hedge funds and large institutions have $63.1M invested in One Stop Systems in 2026 Q1 according to their latest regulatory filings, with 27 funds opening new positions, 22 increasing their positions, 22 reducing their positions, and 18 closing their positions.
103% more call options, than puts
Call options by funds: $8.54M | Put options by funds: $4.2M
50% more first-time investments, than exits
New positions opened: 27 | Existing positions closed: 18
12% more funds holding
Funds holding: 69 → 77 (+8)
0% more repeat investments, than reductions
Existing positions increased: 22 | Existing positions reduced: 22
4.24% less ownership
Funds ownership: 37.93% → 33.69% (-4.2%)
5% less capital invested
Capital invested by funds: $66.8M → $63.1M (-$3.65M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$4.29M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$3.73M |
| 3 |
Morgan Stanley
New York
|
+$3.45M |
| 4 |
Millennium Management
New York
|
+$3.35M |
| 5 |
Jane Street
New York
|
+$2.52M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LLL
Lynrock Lake LP
Rye Brook,
New York
|
-$6.2M |
| 2 |
Arrowstreet Capital
Boston,
Massachusetts
|
-$4.98M |
| 3 |
PRCP
Pacific Ridge Capital Partners
Lake Oswego,
Oregon
|
-$3.1M |
| 4 |
BA
Bard Associates
Chicago,
Illinois
|
-$2.89M |
| 5 |
ACM
Archon Capital Management
Seattle,
Washington
|
-$2.35M |
OSS Hedge Fund Activity: Q1 2026 in Review
77 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in One Stop Systems (OSS) for Q1 2026, worth a combined $63.1M — down 5.5% from $66.8M a quarter earlier.
Buyers outnumbered sellers: 27 funds opened new OSS positions and 18 closed out — a net gain of 9 holders — while 22 added to existing stakes and 22 trimmed.
The largest buyer was BlackRock, adding an estimated $4.29M. The largest seller was Lynrock Lake LP, cutting an estimated $6.2M.
- 77 institutional investors held One Stop Systems (OSS) as of Q1 2026, up from 69 in Q4 2025.
- Funds reported $63.1M of One Stop Systems stock for Q1 2026, down 5.5% quarter-over-quarter.
- 27 funds opened new One Stop Systems positions in Q1 2026 and 18 closed out, a net change of +9 holders.
- The largest One Stop Systems buyer in Q1 2026 was BlackRock, an estimated $4.29M added.
- The largest One Stop Systems seller in Q1 2026 was Lynrock Lake LP, an estimated $6.2M sold.
Based on aggregated 13F filings for Q1 2026.