ISTR · NASDAQ · Banks - Regional

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Runs a founder-led community bank serving Louisiana, Texas, and Alabama.

$30.29
After-hours close−0.01 (−0.03%)
At close$30.30(+0.13%)

Breakdown13F · Form 4

Institutions 55.74%7.66M sharesInsiders 9.29%1.28M sharesOther 34.97%4.81M shares

Shares outstanding 13.75M · Float 11.70M · 85.1% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
Wellington Management Group LLP965.1K7.00%13GMay 15, 2026
Fourthstone LLC827.4K6.02%13GMay 15, 2026
BlackRock, Inc.700.8K5.10%13GApr 27, 2026
Vanguard Capital Management LLC588.4K4.28%13FMay 15, 2026
David A. Flack · director517.7K3.77%Form 4Jan 23, 2026

Institutions13F, as of Mar 31, 2026

111 holders · 7.66M shares · 23 new positions · 65 increased · 25 reduced · 12 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.1.10M8.02%+104.7KMay 13, 2026
Fourthstone LLC827.4K6.02%+131.4KMay 15, 2026
Vanguard Capital Management LLC588.4K4.28%+588.4KnewMay 15, 2026
Dimensional Fund Advisors LP437.4K3.18%+26.8KMay 7, 2026
AllianceBernstein L.P.401.1K2.92%−53.5KMay 15, 2026
Banc Funds Co LLC306.9K2.23%0May 14, 2026
Geode Capital Management, LLC300.1K2.18%+76.8KMay 15, 2026
Royce & Associates LP292.1K2.12%−3.7KMay 12, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Wellington Management Group LLP7.00%965.1K13GMay 15, 2026
Fourthstone LLC6.02%827.4K13GMay 15, 2026
BlackRock, Inc.5.10%700.8K13GApr 27, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
David A. Flackdirector517.7K3.77%Jan 23, 2026
John J. D'Angelodirector, officer: Chief Executive Officer236.6K1.72%Apr 3, 2026
Andrew C. Nelsondirector156.3K1.14%Jan 23, 2026
Robert Chris Jordandirector60.8K0.44%Apr 27, 2026
William H. Hidalgodirector56.5K0.41%Jan 23, 2026
Suzanne O. Middletondirector41.3K0.30%Jan 23, 2026
James F. Dunkerleydirector33.5K0.24%Jan 23, 2026
Gordon H. III Joffriondirector27.0K0.20%Jan 23, 2026
James E. Yeggedirector25.2K0.18%Jan 23, 2026
Linda M. Crochetofficer: Chief Operations Officer24.7K0.18%Apr 3, 2026

17 people have not refiled in the last 18 months (353.1K shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Apr 23, 2026
Robert Chris Jordandirector
Purchase2,000$27.3660,798
Mar 12, 2026
Robert Chris Jordandirector
Purchase1,550$26.8558,798
Jan 27, 2026
John J. D'Angelodirector, officer: Chief Executive Officer
Sale26,163$28.01242,750

CongressHouse and Senate disclosures

Not reported.