Investar Holding Corp
ISTR
100 hedge funds and large institutions have $174M invested in Investar Holding Corp in 2025 Q4 according to their latest regulatory filings, with 12 funds opening new positions, 38 increasing their positions, 32 reducing their positions, and 7 closing their positions.
71% more first-time investments, than exits
New positions opened: 12 | Existing positions closed: 7
19% more repeat investments, than reductions
Existing positions increased: 38 | Existing positions reduced: 32
19% more capital invested
Capital invested by funds: $146M → $174M (+$27.2M)
5% more funds holding
Funds holding: 95 → 100 (+5)
1.98% more ownership
Funds ownership: 64.24% → 66.22% (+2%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
FL
Fourthstone LLC
St Louis,
Missouri
|
+$10.2M |
| 2 |
American Century Companies
Kansas City,
Missouri
|
+$853K |
| 3 |
SEI Investments
Oaks,
Pennsylvania
|
+$836K |
| 4 |
AllianceBernstein
Nashville,
Tennessee
|
+$573K |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
+$463K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PU
Petiole USA
New York
|
-$2.75M |
| 2 |
MCM
Maltese Capital Management
New York
|
-$1.89M |
| 3 |
BFC
Banc Funds Company
Chicago,
Illinois
|
-$1.58M |
| 4 |
RA
Royce & Associates
New York
|
-$501K |
| 5 |
Renaissance Technologies
New York
|
-$462K |
ISTR Hedge Fund Activity: Q4 2025 in Review
100 of the 8,224 institutional investors tracked by Wall St. Rank reported a position in Investar Holding Corp (ISTR) for Q4 2025, worth a combined $174M — up 19% from $146M a quarter earlier.
Buyers outnumbered sellers: 12 funds opened new ISTR positions and 7 closed out — a net gain of 5 holders — while 38 added to existing stakes and 32 trimmed.
The largest buyer was Fourthstone LLC, adding an estimated $10.2M. The largest seller was Petiole USA, exiting entirely with an estimated $2.75M sold.
- 100 institutional investors held Investar Holding Corp (ISTR) as of Q4 2025, up from 95 in Q3 2025.
- Funds reported $174M of Investar Holding Corp stock for Q4 2025, up 19% quarter-over-quarter.
- 12 funds opened new Investar Holding Corp positions in Q4 2025 and 7 closed out, a net change of +5 holders.
- The largest Investar Holding Corp buyer in Q4 2025 was Fourthstone LLC, an estimated $10.2M added.
- The largest Investar Holding Corp seller in Q4 2025 was Petiole USA, an estimated $2.75M sold.
Based on aggregated 13F filings for Q4 2025.