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Investar Holding Corp
ISTR

95 hedge funds and large institutions have $146M invested in Investar Holding Corp in 2025 Q3 according to their latest regulatory filings, with 12 funds opening new positions, 38 increasing their positions, 26 reducing their positions, and 8 closing their positions.

New
Increased
Maintained
Reduced
Closed

50% more first-time investments, than exits

New positions opened: 12 | Existing positions closed: 8

46% more repeat investments, than reductions

Existing positions increased: 38 | Existing positions reduced: 26

26% more capital invested

Capital invested by funds: $116M → $146M (+$29.9M)

4% more funds holding

Funds holding: 91 → 95 (+4)

3.06% more ownership

Funds ownership: 61.18% → 64.24% (+3.1%)

Holders
95
Holders Change
+4
Holders Change %
+4.4%
% of All Funds
1.25%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
12
Increased
38
Reduced
26
Closed
8
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
FL
Fourthstone LLC
Missouri
+$5.6M
2
BlackRock
BlackRock
New York
+$2.02M
3
Wellington Management Group
Wellington Management Group
Massachusetts
+$1.92M
4
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$1.23M
5
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$1.19M

Top Sellers

Rank Fund Capital Flow
1
RIP
Rhino Investment Partners
Pennsylvania
-$3.17M
2
BFC
Banc Funds Company
Illinois
-$2.46M
3
KAS
Kestra Advisory Services
Texas
-$1.59M
4
Morgan Stanley
Morgan Stanley
New York
-$920K
5
PU
Petiole USA
New York
-$619K
Name Holding Trade Value Shares
Change 		Change in
Stake
BlackRock
1
BlackRock
New York
$22.8M +$2.02M +90,220 +10%
Vanguard Group
2
Vanguard Group
Pennsylvania
$12.2M -$11K -489 -0.1%
AllianceBernstein
3
AllianceBernstein
Tennessee
$10M +$382K +17,015 +4%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$9.09M +$199K +8,856 +2%
BFC
5
Banc Funds Company
Illinois
$8.61M -$2.46M -109,804 -23%
RA
6
Royce & Associates
New York
$7.34M -$67.3K -3,000 -0.9%
Wellington Management Group
7
Wellington Management Group
Massachusetts
$6.78M +$1.92M +85,498 +41%
FL
8
Fourthstone LLC
Missouri
$6.5M +$5.6M +249,614 +826%
MCM
9
Maltese Capital Management
New York
$5.78M -$209K -9,300 -4%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$5.38M +$31K +1,381 +0.6%
Acadian Asset Management
11
Acadian Asset Management
Massachusetts
$3.83M +$1.23M +54,616 +49%
KCM
12
Kennedy Capital Management
Missouri
$3.15M +$1.18M +52,744 +64%
State Street
13
State Street
Massachusetts
$3.01M +$44.2K +1,968 +2%
BCM
14
Bridgeway Capital Management
Texas
$2.92M -$300K -13,360 -10%
PU
15
Petiole USA
New York
$2.75M -$619K -27,600 -19%
Arrowstreet Capital
16
Arrowstreet Capital
Massachusetts
$2.59M +$1.19M +53,090 +91%
HIM
17
Hillsdale Investment Management
Ontario, Canada
$2.58M -$22.4K -1,000 -0.9%
Northern Trust
18
Northern Trust
Illinois
$2.13M -$84.5K -3,766 -4%
American Century Companies
19
American Century Companies
Missouri
$2.03M +$649K +28,914 +50%
Renaissance Technologies
20
Renaissance Technologies
New York
$1.58M -$83K -3,700 -5%
HSBC Holdings
21
HSBC Holdings
United Kingdom
$1.54M +$69.1K +3,081 +5%
Marshall Wace
22
Marshall Wace
United Kingdom
$1.46M +$101K +4,501 +8%
Connor, Clark & Lunn Investment Management (CC&L)
23
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$1.45M +$169K +7,528 +14%
EF
24
Empowered Funds
Pennsylvania
$1.26M -$105K -4,660 -8%
Morgan Stanley
25
Morgan Stanley
New York
$1.25M -$920K -40,999 -43%
1
2 3 4 5

ISTR Hedge Fund Activity: Q3 2025 in Review

95 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Investar Holding Corp (ISTR) for Q3 2025, worth a combined $146M — up 26% from $116M a quarter earlier.

Buyers outnumbered sellers: 12 funds opened new ISTR positions and 8 closed out — a net gain of 4 holders — while 38 added to existing stakes and 26 trimmed.

The largest buyer was Fourthstone LLC, adding an estimated $5.6M. The largest seller was Rhino Investment Partners, exiting entirely with an estimated $3.17M sold.

  • 95 institutional investors held Investar Holding Corp (ISTR) as of Q3 2025, up from 91 in Q2 2025.
  • Funds reported $146M of Investar Holding Corp stock for Q3 2025, up 26% quarter-over-quarter.
  • 12 funds opened new Investar Holding Corp positions in Q3 2025 and 8 closed out, a net change of +4 holders.
  • The largest Investar Holding Corp buyer in Q3 2025 was Fourthstone LLC, an estimated $5.6M added.
  • The largest Investar Holding Corp seller in Q3 2025 was Rhino Investment Partners, an estimated $3.17M sold.

Based on aggregated 13F filings for Q3 2025.