OS Therapies Inc
OSTX
13 hedge funds and large institutions have $1.13M invested in OS Therapies Inc in 2025 Q2 according to their latest regulatory filings, with 7 funds opening new positions, 2 increasing their positions, 1 reducing their positions, and 0 closing their positions.
117% more funds holding
Funds holding: 6 → 13 (+7)
100% more repeat investments, than reductions
Existing positions increased: 2 | Existing positions reduced: 1
89% more capital invested
Capital invested by funds: $599K → $1.13M (+$535K)
0.36% more ownership
Funds ownership: 1.79% → 2.15% (+0.36%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CM
CM Management
Gulf Breeze,
Florida
|
+$126K |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$89K |
| 3 |
XT
XTX Topco
George Town,
Cayman Islands
|
+$56.4K |
| 4 |
BCM
Bridgeway Capital Management
Houston,
Texas
|
+$42.1K |
| 5 |
VF
Virtu Financial
New York
|
+$36.3K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$12.2K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
CM
1
CM Management
Gulf Breeze,
Florida
| $705K | +$126K | +75,000 | +25% |
|
|
2
UBS Group
Zurich,
Switzerland
| $99.3K | +$89K | +52,817 | New |
|
|
ISL
3
Ingalls & Snyder LLC
New York
| $69K | – | – | – |
|
|
XT
4
XTX Topco
George Town,
Cayman Islands
| $63K | +$56.4K | +33,489 | New |
|
|
5
BlackRock
New York
| $56.9K | -$12.2K | -7,226 | -19% |
|
|
BCM
6
Bridgeway Capital Management
Houston,
Texas
| $47K | +$42.1K | +25,000 | New |
|
|
VF
7
Virtu Financial
New York
| $40K | +$36.3K | +21,532 | New |
|
8
Stifel Financial
St. Louis,
Missouri
| $28.2K | – | – | – |
|
|
FSC
9
Full Sail Capital
Oklahoma City,
Oklahoma
| $19.2K | +$17.2K | +10,220 | New |
|
|
TRCT
10
Tower Research Capital (TRC)
New York
| $4.79K | +$4.29K | +2,550 | New |
|
11
Morgan Stanley
New York
| $1.39K | +$1.24K | +737 | +24,567% |
|
12
JP Morgan Chase
New York
| $605 | +$542 | +322 | New |
|
|
AAG
13
Armstrong Advisory Group
Needham,
Massachusetts
| $188 | – | – | – |
|
OSTX Hedge Fund Activity: Q2 2025 in Review
13 of the 7,598 institutional investors tracked by Wall St. Rank reported a position in OS Therapies Inc (OSTX) for Q2 2025, worth a combined $1.13M — up 89% from $599K a quarter earlier.
Buyers outnumbered sellers: 7 funds opened new OSTX positions and 0 closed out — a net gain of 7 holders — while 2 added to existing stakes and 1 trimmed.
The largest buyer was CM Management, adding an estimated $126K. The largest seller was BlackRock, cutting an estimated $12.2K.
- 13 institutional investors held OS Therapies Inc (OSTX) as of Q2 2025, up from 6 in Q1 2025.
- Funds reported $1.13M of OS Therapies Inc stock for Q2 2025, up 89% quarter-over-quarter.
- 7 funds opened new OS Therapies Inc positions in Q2 2025 and 0 closed out, a net change of +7 holders.
- The largest OS Therapies Inc buyer in Q2 2025 was CM Management, an estimated $126K added.
- The largest OS Therapies Inc seller in Q2 2025 was BlackRock, an estimated $12.2K sold.
Based on aggregated 13F filings for Q2 2025.