One Stop Systems
OSS
69 hedge funds and large institutions have $66.8M invested in One Stop Systems in 2025 Q4 according to their latest regulatory filings, with 22 funds opening new positions, 25 increasing their positions, 17 reducing their positions, and 10 closing their positions.
255% more call options, than puts
Call options by funds: $3.15M | Put options by funds: $886K
120% more first-time investments, than exits
New positions opened: 22 | Existing positions closed: 10
47% more repeat investments, than reductions
Existing positions increased: 25 | Existing positions reduced: 17
28% more capital invested
Capital invested by funds: $52.1M → $66.8M (+$14.7M)
17% more funds holding
Funds holding: 59 → 69 (+10)
6.37% less ownership
Funds ownership: 44.3% → 37.93% (-6.4%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
+$1.64M |
| 2 |
BNP Paribas Financial Markets
Paris,
France
|
+$1.35M |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$1.07M |
| 4 |
TI
Trexquant Investment
Stamford,
Connecticut
|
+$971K |
| 5 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$836K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LLL
Lynrock Lake LP
Rye Brook,
New York
|
-$4.6M |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$4.25M |
| 3 |
PAMP
Polar Asset Management Partners
Toronto,
Ontario, Canada
|
-$1.57M |
| 4 |
Marshall Wace
London,
United Kingdom
|
-$1.34M |
| 5 |
ACM
Archon Capital Management
Seattle,
Washington
|
-$887K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
GCM
76
Graham Capital Management
Rowayton,
Connecticut
| – | -$62.7K | -11,706 | Closed |
|
77
Rockefeller Capital Management
New York
| – | -$27.9K | -5,200 | Closed |
|
|
ASN
78
Advisory Services Network
Atlanta,
Georgia
| – | -$11.7K | -2,191 | Closed |
|
|
SHIM
79
Stone House Investment Management
Tunkhannock,
Pennsylvania
| – | -$1.61K | -300 | Closed |
|
OSS Hedge Fund Activity: Q4 2025 in Review
69 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in One Stop Systems (OSS) for Q4 2025, worth a combined $66.8M — up 28% from $52.1M a quarter earlier.
Buyers outnumbered sellers: 22 funds opened new OSS positions and 10 closed out — a net gain of 12 holders — while 25 added to existing stakes and 17 trimmed.
The largest buyer was Jane Street, adding an estimated $1.64M. The largest seller was Lynrock Lake LP, cutting an estimated $4.6M.
- 69 institutional investors held One Stop Systems (OSS) as of Q4 2025, up from 59 in Q3 2025.
- Funds reported $66.8M of One Stop Systems stock for Q4 2025, up 28% quarter-over-quarter.
- 22 funds opened new One Stop Systems positions in Q4 2025 and 10 closed out, a net change of +12 holders.
- The largest One Stop Systems buyer in Q4 2025 was Jane Street, an estimated $1.64M added.
- The largest One Stop Systems seller in Q4 2025 was Lynrock Lake LP, an estimated $4.6M sold.
Based on aggregated 13F filings for Q4 2025.