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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
OSAM
26
O'Shaughnessy Asset Management
Connecticut
$1.07M +$67.4K +3,005 +7%
Two Sigma Investments
27
Two Sigma Investments
New York
$1M +$162K +7,220 +20%
Goldman Sachs
28
Goldman Sachs
New York
$977K +$359K +16,008 +61%
Bank of New York Mellon
29
Bank of New York Mellon
New York
$933K +$40K +1,780 +5%
SGCA
30
Steel Grove Capital Advisors
Tennessee
$889K – – –
MCA
31
Mendon Capital Advisors
Florida
$887K +$854K +38,037 New
MAM
32
Martingale Asset Management
Massachusetts
$859K +$831K +37,008 New
Qube Research & Technologies (QRT)
33
Qube Research & Technologies (QRT)
United Kingdom
$824K +$129K +5,740 +19%
Barclays
34
Barclays
United Kingdom
$804K -$80.8K -3,602 -9%
Charles Schwab
35
Charles Schwab
California
$602K -$34.2K -1,526 -6%
SO
36
STRS Ohio
Ohio
$562K -$40.4K -1,800 -7%
Los Angeles Capital Management
37
Los Angeles Capital Management
California
$531K -$44.8K -1,995 -8%
Two Sigma Advisers
38
Two Sigma Advisers
New York
$522K -$89.8K -4,000 -15%
Bank of America
39
Bank of America
North Carolina
$502K +$137K +6,091 +39%
Jane Street
40
Jane Street
New York
$501K +$484K +21,572 New
UBS Group
41
UBS Group
Switzerland
$491K +$366K +16,302 +336%
RWM
42
Ritholtz Wealth Management
New York
$431K +$112K +5,003 +37%
Prudential Financial
43
Prudential Financial
New Jersey
$429K +$11.6K +515 +3%
AQR Capital Management
44
AQR Capital Management
Connecticut
$396K +$383K +17,077 New
Janney Montgomery Scott
45
Janney Montgomery Scott
Pennsylvania
$360K -$183K -8,136 -34%
N
46
Nuveen
North Carolina
$349K – – –
TI
47
Trexquant Investment
Connecticut
$331K -$309K -13,747 -49%
QC
48
Quadrature Capital
United Kingdom
$322K +$311K +13,838 New
Citadel Advisors
49
Citadel Advisors
Florida
$317K -$80.4K -3,582 -21%
SC
50
Savant Capital
Illinois
$307K – – –
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.