One Stop Systems
OSS
59 hedge funds and large institutions have $52.1M invested in One Stop Systems in 2025 Q3 according to their latest regulatory filings, with 26 funds opening new positions, 17 increasing their positions, 12 reducing their positions, and 6 closing their positions.
333% more first-time investments, than exits
New positions opened: 26 | Existing positions closed: 6
128% more capital invested
Capital invested by funds: $22.8M → $52.1M (+$29.2M)
51% more funds holding
Funds holding: 39 → 59 (+20)
42% more repeat investments, than reductions
Existing positions increased: 17 | Existing positions reduced: 12
14.51% more ownership
Funds ownership: 29.79% → 44.3% (+15%)
19% less call options, than puts
Call options by funds: $638K | Put options by funds: $783K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$3.89M |
| 2 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$3.02M |
| 3 |
ACM
Archon Capital Management
Seattle,
Washington
|
+$1.77M |
| 4 |
PAMP
Polar Asset Management Partners
Toronto,
Ontario, Canada
|
+$1.6M |
| 5 |
Renaissance Technologies
New York
|
+$1.59M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LLL
Lynrock Lake LP
Rye Brook,
New York
|
-$3.32M |
| 2 |
BA
Bard Associates
Chicago,
Illinois
|
-$167K |
| 3 |
VF
Virtu Financial
New York
|
-$130K |
| 4 |
Morgan Stanley
New York
|
-$89.2K |
| 5 |
EIM
Essex Investment Management
Boston,
Massachusetts
|
-$88.9K |
OSS Hedge Fund Activity: Q3 2025 in Review
59 of the 7,625 institutional investors tracked by Wall St. Rank reported a position in One Stop Systems (OSS) for Q3 2025, worth a combined $52.1M — up 128% from $22.8M a quarter earlier.
Buyers outnumbered sellers: 26 funds opened new OSS positions and 6 closed out — a net gain of 20 holders — while 17 added to existing stakes and 12 trimmed.
The largest buyer was Citadel Advisors, adding an estimated $3.89M. The largest seller was Lynrock Lake LP, cutting an estimated $3.32M.
- 59 institutional investors held One Stop Systems (OSS) as of Q3 2025, up from 39 in Q2 2025.
- Funds reported $52.1M of One Stop Systems stock for Q3 2025, up 128% quarter-over-quarter.
- 26 funds opened new One Stop Systems positions in Q3 2025 and 6 closed out, a net change of +20 holders.
- The largest One Stop Systems buyer in Q3 2025 was Citadel Advisors, an estimated $3.89M added.
- The largest One Stop Systems seller in Q3 2025 was Lynrock Lake LP, an estimated $3.32M sold.
Based on aggregated 13F filings for Q3 2025.