S&T Bancorp

STBA · NASDAQ

$49.24+$0.75 (+1.55%)TodayMarket closed · Oct 20, 7:30 PM ET

Prev close $48.49

Who owns STBA

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 48.4% of STBA’s shares.

BlackRock Institutional Trust Company, N.A.13.5%
Vanguard Portfolio Management, LLC6.8%
Dimensional Fund Advisors, L.P.6.6%
State Street Investment Management (US)5.3%
Next 6 largest institutions16.1%
All other shareholders51.6%

Top institutional holders of STBA
Holder	Shares	% of shares	Change, last filing	Filed
BlackRock Institutional Trust Company, N.A.	4.77M	13.54%	−185.65K	Jun 30, 2026
Vanguard Portfolio Management, LLC	2.40M	6.79%	−40.76K	Jun 30, 2026
Dimensional Fund Advisors, L.P.	2.33M	6.59%	−19.81K	Jun 30, 2026
State Street Investment Management (US)	1.87M	5.31%	+96.53K	Jun 30, 2026
Vanguard Capital Management, LLC	1.62M	4.59%	−47.40K	Jun 30, 2026
Charles Schwab Investment Management, Inc.	1.39M	3.95%	+52.89K	Jun 30, 2026
Geode Capital Management, L.L.C.	983.05K	2.79%	+23.49K	Jun 30, 2026
American Century Investment Management, Inc.	667.55K	1.89%	−3.50K	Jun 30, 2026
Managed Account Advisors LLC	522.05K	1.48%	−24.63K	Jun 30, 2026
Two Sigma Investments, LP	505.86K	1.43%	+104.40K	Jun 30, 2026

Largest mutual fund holders

Top mutual fund holders of STBA
Holder	Shares	% of shares	Change, last filing	Filed
iShares Core S&P Small-Cap ETF	2.19M	6.21%	−8.97K	Aug 31, 2026
Vanguard Total Stock Market Index Fund	1.15M	3.26%	+9.00K	Jul 31, 2026
Schwab U.S. Dividend Equity ETF	979.84K	2.78%	+31.92K	Aug 31, 2026
iShares Russell 2000 ETF	889.78K	2.52%	−24.62K	Jul 31, 2026
Vanguard Small-Cap Index Fund	826.63K	2.34%	+3.57K	Jul 31, 2026

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders sold $887.08K (27 trades) of STBA on the open market, with no buys.

Latest STBA insider transactions
Insider	Date	Type	Shares	Price	Value
HIEB WILLIAM J	Aug 12, 2026	Sale	5	$51.43	$257
HIEB WILLIAM J	Aug 12, 2026	Sale	100	$51.42	$5.14K
HIEB WILLIAM J	Aug 12, 2026	Sale	607	$51.42	$31.21K
HIEB WILLIAM J	Aug 12, 2026	Sale	300	$51.42	$15.42K
HIEB WILLIAM J	Aug 12, 2026	Sale	100	$51.40	$5.14K
HIEB WILLIAM J	Aug 12, 2026	Sale	355	$51.39	$18.24K
HIEB WILLIAM J	Aug 12, 2026	Sale	100	$51.38	$5.14K
HIEB WILLIAM J	Aug 12, 2026	Sale	1.30K	$51.38	$66.79K
HIEB WILLIAM J	Aug 12, 2026	Sale	695	$51.36	$35.70K
HIEB WILLIAM J	Aug 12, 2026	Sale	260	$51.35	$13.35K

Short interest

Settled Sep 30, 2026

Shares short: 2.41M
Days to cover: 6.56
% of shares outstanding: 6.83%
Average daily volume: 367.24K
Change since last report: +12.2%

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