13F Insight
DOSSIER · 13F Holders · Q1 2026Financial Services · State Commercial BanksCyclicalNet sold
FIBK

FIRST INTST BANCSYSTEM INC

297 institutions still hold FIRST INTST BANCSYSTEM INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 32055Y201·State Commercial Banks·297 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 3.8%
vs prior quarter
13F value held
$2.3B
48.0% inst. owned
of float
Holders
297
-23 QoQ
filers reporting
Activity
+78 / −6
+864 added · −914 reduced
this quarter
Concentration
19.18%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

297 institutions reported FIBK in Q1 2026. BlackRock, Inc. leads at 19.2% of the visible book. -23 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$450M13.5M0.01%Q1 202602
STATE STREET CORP
CIK 0000093751
$197M5.9M0.01%Q1 202603
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$188M5.6M0.04%Q1 202604
Vanguard Portfolio Management
CIK 0002100121
$183M5.5M0.01%Q1 202605
FIRST INTERSTATE BANK
CIK 0001125727
$155M4.7M8.74%Q1 202606
HoldCo Asset Management, LP
CIK 0001724246
$132M4.0M9.82%Q1 202607
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$130M3.9M0.02%Q1 202608
FMR LLC
CIK 0000315066
$129M3.9M0.01%Q1 202609
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$129M3.9M0.00%Q1 202610
Capital International Investors
CIK 0001562230
$77M2.3M0.02%Q1 202611
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$74M2.2M0.00%Q1 202612
VICTORY CAPITAL MANAGEMENT INC
CIK 0001040188
$70M2.1M0.04%Q1 202613
FRANKLIN RESOURCES INC
CIK 0000038777
$63M1.9M0.02%Q1 202614
BANK OF AMERICA CORP /DE/
CIK 0000070858
$59M1.8M0.00%Q1 202615
UBS Group AG
CIK 0001610520
$59M1.8M0.01%Q1 202616
Delaware Management Holdings, Inc.
CIK 0000921739
$57M1.7M0.10%Q1 202617
JPMORGAN CHASE & CO
CIK 0000019617
$56M1.7M0.00%Q1 202618
MORGAN STANLEY
CIK 0000895421
$51M1.5M0.00%Q1 202619
JENNISON ASSOCIATES LLC
CIK 0000053417
$47M1.4M0.03%Q4 202520
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 0000912938
$43M1.3M0.01%Q1 2026
Page 1 of 15
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