Ostin Technology Group
OST
10 hedge funds and large institutions have $133K invested in Ostin Technology Group in 2025 Q3 according to their latest regulatory filings, with 3 funds opening new positions, 2 increasing their positions, 5 reducing their positions, and 10 closing their positions.
3.29% less ownership
Funds ownership: 4.79% → 1.5% (-3.3%)
41% less funds holding
Funds holding: 17 → 10 (-7)
60% less repeat investments, than reductions
Existing positions increased: 2 | Existing positions reduced: 5
70% less first-time investments, than exits
New positions opened: 3 | Existing positions closed: 10
85% less capital invested
Capital invested by funds: $868K → $133K (-$734K)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$82.1K |
| 2 |
FIA
FNY Investment Advisers
New York
|
+$47K |
| 3 |
HF
HRT Financial
New York
|
+$32.1K |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$1.64K |
| 5 |
Bank of America
Charlotte,
North Carolina
|
+$1.43K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Renaissance Technologies
New York
|
-$333K |
| 2 |
Morgan Stanley
New York
|
-$115K |
| 3 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$104K |
| 4 |
MG
Marex Group
London,
|
-$99.6K |
| 5 |
QC
Quadrature Capital
London,
United Kingdom
|
-$49.2K |
OST Hedge Fund Activity: Q3 2025 in Review
10 of the 7,645 institutional investors tracked by Wall St. Rank reported a position in Ostin Technology Group (OST) for Q3 2025, worth a combined $133K — down 85% from $868K a quarter earlier.
Sellers outnumbered buyers: 10 funds closed out of OST and 3 opened new positions — a net loss of 7 holders — while 5 trimmed existing stakes and 2 added.
The largest buyer was Citadel Advisors, opening a new position worth an estimated $82.1K. The largest seller was Renaissance Technologies, exiting entirely with an estimated $333K sold.
- 10 institutional investors held Ostin Technology Group (OST) as of Q3 2025, down from 17 in Q2 2025.
- Funds reported $133K of Ostin Technology Group stock for Q3 2025, down 85% quarter-over-quarter.
- 3 funds opened new Ostin Technology Group positions in Q3 2025 and 10 closed out, a net change of -7 holders.
- The largest Ostin Technology Group buyer in Q3 2025 was Citadel Advisors, an estimated $82.1K added.
- The largest Ostin Technology Group seller in Q3 2025 was Renaissance Technologies, an estimated $333K sold.
Based on aggregated 13F filings for Q3 2025.