Insider Transactions Reported by 28 Insiders of S&T BANCORP INC

Symbol: STBA on Nasdaq
Location: Indiana, PA

Quick Takeaways

STBA - S&T BANCORP INC has 28 insiders with reported activity on this page.
Net insider value flow over the last year: +$96,389.
Recent transaction rows are available for direct filing-level review.

What Changed

Buy value: $96,389; sell value: $0.
Net share flow: +2,635.

Why This Matters

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Source Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to buying over the last 12 months. Net value: +$96,389.

Buys

$96,389

Shares: 2,635

Insiders: 2

Sells

Shares: 0

Insiders: 0

Net

+$96,389

Shares: +2,635

Insiders: 2

Window (months)	Buy shares	Buy $	Sell $	Net $
0-3	0	$0	$0	$0
3-6	0	$0	$0	$0
6-9	2,500	$91,363	$0	+$91,363
9-12	135	$5,027	$0	+$5,027

S&T BANCORP INC executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
Mark Kochvar	Sr Exec Vice President & Cfo	$4,069,631			Mixed	01 Apr 2026
David G. Antolik	PRESIDENT, Director	$3,259,487			Mixed	01 Apr 2026
Steven Jay Weingarten	Director	$2,878,091			Mixed	14 May 2024
James Thomas Gibson	Director	$2,502,466			Mixed	18 May 2021
Jeffrey D. Grube	Director	$1,692,472	+$91,363	+5.7%	Mixed	28 Oct 2025
Michael J. Donnelly	Director	$1,530,396			Mixed	13 May 2025
William J. Hieb	Director	$1,341,497			Mixed	13 May 2025
LaDawn D. Yesho	Executive Vice President	$1,280,086			Mixed	01 Apr 2026
Stephen A. Drahnak	Executive Vice President	$1,091,163			Mixed	01 Apr 2026
Christine J. Toretti	Director	$1,037,418			Mixed	28 Sep 2025
Frank J. Palermo Jr.	Director	$1,027,988			Mixed	13 May 2025
Melanie A. Lazzari	Executive Vice President	$1,015,596			Mixed	10 Apr 2026
Ernest J. Draganza	Sr Executive Vice President	$987,297			Mixed	31 May 2021
Christina Anne Cassotis	Director	$653,279			Mixed	31 Dec 2025
Christopher J. McComish	Chief Executive Officer, Director	$617,953			Mixed	01 Apr 2026
Peter Richard Barsz	Director	$478,942			Mixed	31 Dec 2025
Lewis W. Adkins Jr.	Director	$464,946			Mixed	13 May 2025
Rachel Lynn Smydo	Executive Vice President	$463,031			Mixed	01 Apr 2026
Susan A. Nicholson	Executive Vice President	$429,459			Mixed	01 Apr 2026
James Arvo Michie	Executive Vice President	$355,409			Mixed	01 Apr 2026
Robert Edward Kane	Director	$345,978			Mixed	31 Dec 2021
Bhaskar Ramachandran	Director	$169,578			Mixed	13 May 2025
Mary A. Dornetto	Executive Vice President	$145,794			Mixed	01 Apr 2022
George Basara	Executive Vice President	$90,476			Mixed	31 Aug 2022
Peter G. Gurt	Director	$56,726	+$5,027	+9.7%	Mixed	28 May 2025
Charles B. Carroll Jr.	Executive Vice President	$49,640			Mixed	23 Sep 2022
Brian Richard Dobis	Executive Vice President	$45,430			Mixed	01 Nov 2021
Stephanie Nycum Doliveira	Director	$0			Mixed	29 Oct 2025

Top shareholders of S&T BANCORP INC (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock, Inc.	13F	Company	— class O/S missing	5,477,714	$215,548,057	—	31 Dec 2025	13F
VANGUARD GROUP INC	13F	Company	— class O/S missing	4,504,300	$177,244,205	—	31 Dec 2025	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	— class O/S missing	2,338,594	$92,024,176	—	31 Dec 2025	13F
STATE STREET CORP	13F	Company	— class O/S missing	1,723,385	$67,815,200	—	31 Dec 2025	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	— class O/S missing	1,624,436	$63,921,557	—	31 Dec 2025	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	— class O/S missing	958,685	$37,728,728	—	31 Dec 2025	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	— class O/S missing	680,988	$26,796,878	—	31 Dec 2025	13F
BANK OF AMERICA CORP /DE/	13F	Company	— class O/S missing	643,882	$25,336,754	—	31 Dec 2025	13F
NORTHERN TRUST CORP	13F	Company	— class O/S missing	448,775	$17,659,295	—	31 Dec 2025	13F
MORGAN STANLEY	13F	Company	— class O/S missing	418,692	$16,475,565	—	31 Dec 2025	13F
Bank of New York Mellon Corp	13F	Company	— class O/S missing	372,324	$14,650,941	—	31 Dec 2025	13F
S&T BANK/PA	13F	Company	— class O/S missing	313,773	$12,346,953	—	31 Dec 2025	13F
Nuveen, LLC	13F	Company	— class O/S missing	286,466	$11,272,438	—	31 Dec 2025	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	— class O/S missing	273,496	$10,762,068	—	31 Dec 2025	13F
Invesco Ltd.	13F	Company	— class O/S missing	232,590	$9,152,416	—	31 Dec 2025	13F
EARNEST PARTNERS LLC	13F	Company	— class O/S missing	223,332	$8,788,114	—	31 Dec 2025	13F
GOLDMAN SACHS GROUP INC	13F	Company	— class O/S missing	200,311	$7,882,232	—	31 Dec 2025	13F
Qube Research & Technologies Ltd	13F	Company	— class O/S missing	193,757	$7,624,338	—	31 Dec 2025	13F
FIRST COMMONWEALTH FINANCIAL CORP /PA/	13F	Company	— class O/S missing	186,127	$7,324,097	—	31 Dec 2025	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	— class O/S missing	182,173	$7,168,507	—	31 Dec 2025	13F
UBS Group AG	13F	Company	— class O/S missing	165,153	$6,498,771	—	31 Dec 2025	13F
PUBLIC SECTOR PENSION INVESTMENT BOARD	13F	Company	— class O/S missing	160,163	$6,302,414	—	31 Dec 2025	13F
ProShare Advisors LLC	13F	Company	— class O/S missing	155,030	$6,100,431	—	31 Dec 2025	13F
ENVESTNET ASSET MANAGEMENT INC	13F	Company	— class O/S missing	152,061	$5,983,591	—	31 Dec 2025	13F
WELLS FARGO & COMPANY/MN	13F	Company	— class O/S missing	142,049	$5,589,624	—	31 Dec 2025	13F
Waldron Private Wealth LLC	13F	Company	— class O/S missing	127,474	$5,016,116	—	31 Dec 2025	13F
DENALI ADVISORS LLC	13F	Company	— class O/S missing	127,100	$5,001,385	—	31 Dec 2025	13F
PANAGORA ASSET MANAGEMENT INC	13F	Company	— class O/S missing	121,064	$4,763,868	—	31 Dec 2025	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	— class O/S missing	115,735	$4,554,172	—	31 Dec 2025	13F
FIRST TRUST ADVISORS LP	13F	Company	— class O/S missing	112,623	$4,431,715	—	31 Dec 2025	13F
RHUMBLINE ADVISERS	13F	Company	— class O/S missing	106,451	$4,188,830	—	31 Dec 2025	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	— class O/S missing	104,249	$4,102,190	—	31 Dec 2025	13F
Mark Kochvar	3/4/5	SR EXEC VICE PRESIDENT & CFO	— mixed-class rows	103,155 mixed-class rows	$4,069,631	—	01 Apr 2026	3/4/5
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F	Company	— class O/S missing	102,711	$4,041,678	—	31 Dec 2025	13F
Legal & General Group Plc	13F	Company	— class O/S missing	91,977	$3,619,295	—	31 Dec 2025	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	— class O/S missing	89,943	$3,539,257	—	31 Dec 2025	13F
Integrated Wealth Concepts LLC	13F	Company	— class O/S missing	87,396	$3,439,022	—	31 Dec 2025	13F
David G. Antolik	3/4/5	PRESIDENT, Director	— mixed-class rows	84,625 mixed-class rows	$3,259,487	—	01 Apr 2026	3/4/5
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	— class O/S missing	81,733	$3,216,192	—	31 Dec 2025	13F
AMERIPRISE FINANCIAL INC	13F	Company	— class O/S missing	81,212	$3,195,682	—	31 Dec 2025	13F
Global Retirement Partners, LLC	13F	Company	— class O/S missing	77,554	$3,051,731	—	31 Dec 2025	13F
Brandywine Global Investment Management, LLC	13F	Company	— class O/S missing	76,441	$3,007,953	—	31 Dec 2025	13F
BESSEMER GROUP INC	13F	Company	— class O/S missing	76,070	$2,993,000	—	31 Dec 2025	13F
Swiss National Bank	13F	Company	— class O/S missing	75,700	$2,978,795	—	31 Dec 2025	13F
JPMORGAN CHASE & CO	13F	Company	— class O/S missing	73,207	$2,880,695	—	31 Dec 2025	13F
Steven Jay Weingarten	3/4/5	Director	— class O/S missing	90,506	$2,878,091	—	14 May 2024	3/4/5
Edgestream Partners, L.P.	13F	Company	— class O/S missing	72,609	$2,857,164	—	31 Dec 2025	13F
FIFTH THIRD BANCORP	13F	Company	— class O/S missing	71,769	$2,824,110	—	31 Dec 2025	13F
DEAN INVESTMENT ASSOCIATES, LLC	13F	Company	— class O/S missing	70,326	$2,767,328	—	31 Dec 2025	13F
BARCLAYS PLC	13F	Company	— class O/S missing	68,041	$2,677,414	—	31 Dec 2025	13F

Recent Insider Transactions by Companies or Individuals for S&T BANCORP INC

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Shares	Shares Owned	Date	Ownership
Melanie A. Lazzari	STBA	Common Stock	Tax liability	-1.4%	-224	15,749	10 Apr 2026	Direct
Melanie A. Lazzari	STBA	Common Stock	Options Exercise	3.3%	510	15,973	10 Apr 2026	Direct
Melanie A. Lazzari	STBA	Restricted Stock Units	Options Exercise	-100%	-510	0	10 Apr 2026	Direct
Rachel Lynn Smydo	STBA	Common Stock	Tax liability	-13.3%	-1,361	8,871	01 Apr 2026	Direct
Rachel Lynn Smydo	STBA	Common Stock	Options Exercise	60.4%	4,730	12,563	01 Apr 2026	Direct
Rachel Lynn Smydo	STBA	Restricted Stock Units	Award		4,523	2,768	01 Apr 2026	Direct
Rachel Lynn Smydo	STBA	Restricted Stock Units	Options Exercise	-100%	-4,730	0	01 Apr 2026	Direct
LaDawn D. Yesho	STBA	Common Stock	Tax liability	-11%	-2,232	18,147	01 Apr 2026	Direct
LaDawn D. Yesho	STBA	Common Stock	Options Exercise	30.3%	5,100	21,920	01 Apr 2026	Direct
LaDawn D. Yesho	STBA	Restricted Stock Units	Award		4,826	2,988	01 Apr 2026	Direct
LaDawn D. Yesho	STBA	Restricted Stock Units	Options Exercise	-100%	-5,100	0	01 Apr 2026	Direct
David G. Antolik	STBA	Common Stock	Tax liability	-5.66%	-4,062	67,643	01 Apr 2026	Direct
David G. Antolik	STBA	Common Stock	Options Exercise	15.2%	9,281	70,265	01 Apr 2026	Direct
David G. Antolik	STBA	Restricted Stock Units	Options Exercise	-100%	-9,281	0	01 Apr 2026	Direct
David G. Antolik	STBA	Restricted Stock Units	Award		8,601	5,493	01 Apr 2026	Direct
Susan A. Nicholson	STBA	Common Stock	Tax liability	-23.3%	-2,040	6,732	01 Apr 2026	Direct
Susan A. Nicholson	STBA	Common Stock	Options Exercise	84.4%	4,659	10,182	01 Apr 2026	Direct
Susan A. Nicholson	STBA	Restricted Stock Units	Award		4,401	2,743	01 Apr 2026	Direct
Susan A. Nicholson	STBA	Restricted Stock Units	Options Exercise	-100%	-4,659	0	01 Apr 2026	Direct
Stephen A. Drahnak	STBA	Common Stock	Tax liability	-12.2%	-2,281	16,392	01 Apr 2026	Direct
Stephen A. Drahnak	STBA	Common Stock	Options Exercise	41.2%	5,212	17,874	01 Apr 2026	Direct
Stephen A. Drahnak	STBA	Restricted Stock Units	Options Exercise	-100%	-5,212	0	01 Apr 2026	Direct
Stephen A. Drahnak	STBA	Restricted Stock Units	Award		4,851	3,076	01 Apr 2026	Direct
Mark Kochvar	STBA	Common Stock	Tax liability	-5.46%	-3,482	60,242	01 Apr 2026	Direct
Mark Kochvar	STBA	Common Stock	Options Exercise	14.9%	8,135	62,599	01 Apr 2026	Direct
Mark Kochvar	STBA	Restricted Stock Units	Options Exercise	-100%	-8,135	0	01 Apr 2026	Direct
Mark Kochvar	STBA	Restricted Stock Units	Award		7,547	4,811	01 Apr 2026	Direct
James Arvo Michie	STBA	Common Stock	Tax liability	-25.4%	-2,240	6,561	01 Apr 2026	Direct
James Arvo Michie	STBA	Common Stock	Options Exercise	97.8%	5,116	10,347	01 Apr 2026	Direct
James Arvo Michie	STBA	Restricted Stock Units	Award		4,838	3,005	01 Apr 2026	Direct
James Arvo Michie	STBA	Restricted Stock Units	Options Exercise	-100%	-5,116	0	01 Apr 2026	Direct
Christopher J. McComish	STBA	Common Stock	Options Exercise	73.4%	3,432	8,107	01 Apr 2026	Direct
Christopher J. McComish	STBA	Restricted Stock Units	Options Exercise	-33%	-3,432	6,970	01 Apr 2026	Direct
Christopher J. McComish	STBA	Restricted Stock Units	Award		9,566	9,566	01 Apr 2026	Direct
Melanie A. Lazzari	STBA	Common Stock	Tax liability	-10.7%	-1,633	13,635	01 Apr 2026	Direct
Melanie A. Lazzari	STBA	Common Stock	Options Exercise	30.8%	3,728	15,815	01 Apr 2026	Direct
Melanie A. Lazzari	STBA	Restricted Stock Units	Options Exercise	-100%	-3,728	0	01 Apr 2026	Direct
Melanie A. Lazzari	STBA	Restricted Stock Units	Award		3,570	2,180	01 Apr 2026	Direct
David G. Antolik	STBA	Common Stock	Other	3.57%	405	11,745	31 Dec 2025	401k
Peter Richard Barsz	STBA	Common Stock	Other	17.8%	1,603	10,598	31 Dec 2025	Direct
Christina Anne Cassotis	STBA	Common Stock	Other	0.21%	31.41	15,312	31 Dec 2025	Direct
Stephen A. Drahnak	STBA	Common Stock	Other		0.57	14,662	31 Dec 2025	Direct
Stephen A. Drahnak	STBA	Common Stock	Other	3.57%	287	8,308	31 Dec 2025	401-k
Melanie A. Lazzari	STBA	Common Stock	Other	3.37%	436	13,368	31 Dec 2025	Direct
Melanie A. Lazzari	STBA	Common Stock	Other	4.15%	321	8,041	31 Dec 2025	401(k)
LaDawn D. Yesho	STBA	Common Stock	Other	3.39%	581	17,745	31 Dec 2025	Direct
LaDawn D. Yesho	STBA	Common Stock	Other	9.05%	930	11,202	31 Dec 2025	401 K
Mark Kochvar	STBA	Common Stock	Other	3.25%	1,813	57,536	31 Dec 2025	Direct
Mark Kochvar	STBA	Common Stock	Other	3.57%	1,319	38,230	31 Dec 2025	401-k
Stephanie Nycum Doliveira	STBA	Director Restricted Stock Units	Award		812	812	29 Oct 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.