S&T Bancorp STBA Insider Ownership

NASDAQ STBA

$51.41 +0.03 (+0.06%)

At close: Nov 10, 2026 · 4:00 PM EST

Insider Holdings by Owner

498.88K Shares

Steven Jay Weingarten90.51K18.1%

David G Antolik69.77K14.0%

Mark Kochvar62.19K12.5%

Jeffrey D Grube46.28K9.3%

Christine J Toretti28.00K5.6%

Other insiders (18)202.14K40.5%

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

1.18%

▼-0.047% pp QoQ

Shares Held by Insiders

420.21K

filed for Sep 2026

▼-3.83% QoQ

Shares Outstanding

35.72Mn

35,717,383 shares

Direct Holdings

408.45K

Indirect: 11.75K

Net Open-Market Trades

-17.29K

net sold · -$887.08K in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Open-Market Insider Trades

Bought Sold

Latest quarter —

Net over range —

Net-buying quarters —

Insider Ownership Summary

Updated Nov 4, 2026

Across the past 12 months, open-market trades by S&T Bancorp insiders were all sales, totaling $887,075 (17.29K shares).

William J. Hieb (Director) sold the most S&T Bancorp stock on the open market over the past 12 months, $887,075 (17.29K shares), most recently on August 12, 2026.
Apart from open-market trades, STBA insiders acquired 52.99K shares through option exercises and conversions and gave up 19.66K shares to cover taxes or exercise prices in the past 12 months.
According to Business Quant data, insiders at S&T Bancorp reported 420.2K shares in total in their latest Form 4 filings, down 3.83% from 436.94K shares at the end of Q2 2026.
Direct holdings account for 408.45K shares (97.20%) of STBA's insider total, and indirect holdings through trusts, partnerships and family members for 11.75K shares (2.80%).
Holdings in S&T Bancorp stock are reported by 20 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
S&T Bancorp's three biggest insider holders are David G. Antolik (President, 81.52K shares), Mark Kochvar (Senior Executive Vice President & CFO, 62.19K shares) and Jeffrey D. Grube (Director, 46.27K shares), based on their latest Form 4 filings.
David G. Antolik holds 19.40% of the combined insider position in S&T Bancorp.
Institutional investors held 73.31% of S&T Bancorp stock at the end of Q2 2026, while the latest Form 4 filings of its insiders account for about 1.18%; other investors, including the public, hold roughly 25.51%.
In the last 12 months, 25 Form 4 filings with transactions in STBA stock came from 18 insiders.
These insider figures for S&T Bancorp are based on Form 4 filings through August 13, 2026.

Form 4 Holdings

Insiders Holding STBA

Insiders 23

Shares held 498.88K

Of outstanding 1.40%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	Steven Jay Weingarten	Director	90,506	90,506	18.1%	15 May, 2024
2	David G Antolik	President	69,772	69,772	14.0%	03 Apr, 2026
3	Mark Kochvar	Sr Exec Vice President Cfo	62,189	62,189	12.5%	03 Apr, 2026
4	Jeffrey D Grube	Director	46,275	46,275	9.3%	14 May, 2026
5	Christine J Toretti	Director	28,000	28,000	5.6%	15 May, 2025
6	Frank J Jr Palermo	Director	24,716	24,716	5.0%	15 May, 2025
7	Michael J Donnelly	Director	23,374	23,374	4.7%	14 May, 2026
8	Ladawn D Yesho	Executive Vice President	20,613	20,613	4.1%	03 Apr, 2026
9	Stephen A. Drahnak	Executive Vice President	17,593	17,593	3.5%	03 Apr, 2026
10	William J Hieb	Director	17,344	17,344	3.5%	13 Aug, 2026
11	Christina Anne Cassotis	Director	16,602	16,602	3.3%	14 May, 2026
12	Melanie A Lazzari	Executive Vice President	15,749	15,749	3.2%	14 Apr, 2026
13	Lewis W Jr Adkins	Director	11,995	11,995	2.4%	14 May, 2026
14	Rachel Lynn Smydo	Executive Vice President	11,767	11,767	2.4%	03 Apr, 2026
15	Susan A Nicholson	Executive Vice President	9,538	9,538	1.9%	31 Jul, 2026
16	James Arvo Michie	Executive Vice President	9,032	9,032	1.8%	03 Apr, 2026
17	Christopher J. Mccomish	Chief Executive Officer	8,107	8,107	1.6%	03 Apr, 2026
18	Mary A Dornetto	Executive Vice President	5,366	5,366	1.1%	31 May, 2022
19	Bhaskar Ramachandran	Director	4,114	4,114	0.8%	14 May, 2026
20	George Basara	Executive Vice President	3,330	3,330	0.7%	02 Sep, 2022
21	Charles Benner Jr Carroll	Executive Vice President	1,827	1,827	0.4%	27 Sep, 2022
22	Stephanie Nycum Doliveira	Director	812	812	0.2%	14 May, 2026
23	Peter G Gurt	Director	260	260	0.1%	30 May, 2025

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,725 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
11 Aug, 2026	William J Hieb	Director	Disposed S	1,832	$51.18	$93.76K	32,801	Direct
11 Aug, 2026	William J Hieb	Director	Disposed S	1,905	$51.26	$97.65K	30,896	Direct
11 Aug, 2026	William J Hieb	Director	Disposed S	1,573	$51.30	$80.69K	29,323	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	1,290	$51.40	$66.31K	28,033	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	1,385	$51.25	$70.98K	26,648	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	925	$51.26	$47.42K	25,723	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	57	$51.27	$2.92K	25,666	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	400	$51.28	$20.51K	25,266	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	3	$51.28	$154	25,263	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	100	$51.30	$5.13K	25,163	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	500	$51.30	$25.65K	24,663	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	100	$51.31	$5.13K	24,563	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	1,285	$51.32	$65.95K	23,278	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	200	$51.33	$10.27K	23,078	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	507	$51.33	$26.02K	22,571	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	905	$51.34	$46.46K	21,666	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	500	$51.35	$25.67K	21,166	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	260	$51.35	$13.35K	20,906	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	695	$51.36	$35.70K	20,211	Direct
12 Aug, 2026	William J Hieb	Director	Disposed S	1,300	$51.38	$66.79K	18,911	Direct

Showing 1 to 20 of 1,725 transactions