S&T Bancorp, Inc.
S&T Bancorp, Inc. (STBA) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · STBA · as of Sep 30, 2025
Ownership Breakdown
209
Institutional Holders
▼ 2 vs Q2
$1.00B
Total Inst. Value
▼ $11.04M vs Q2
35.98M
Shares Outstanding
freeFloat 98.66%
26.65M
13F Shares Held
▼ 128,400 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
STBA largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. state commercial banks | 5.45M | 14.12% | 14.12% | $204.86B | Nov 12, 2025 | ▼ 68.2K |
VANGUARD GROUP INC state commercial banks | 4.53M | 11.74% | 11.74% | $170.35B | Nov 7, 2025 | ▼ 36.5K |
DIMENSIONAL FUND ADVISORS LP state commercial banks | 2.35M | 6.09% | 6.09% | $88.35B | Nov 12, 2025 | ▼ 8.9K |
STATE STREET CORP state commercial banks | 1.66M | 4.30% | 4.30% | $62.46B | Nov 14, 2025 | ▼ 29.2K |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC state commercial banks | 1.60M | 4.16% | 4.16% | $60.30B | Nov 10, 2025 | ▲ 21.3K |
GEODE CAPITAL MANAGEMENT, LLC state commercial banks | 955.3K | 2.47% | 2.47% | $35.91B | Nov 12, 2025 | ▼ 59 |
AMERICAN CENTURY COMPANIES INC state commercial banks | 695.7K | 1.80% | 1.80% | $26.15B | Nov 12, 2025 | ▼ 2.9K |
BANK OF AMERICA CORP /DE/ state commercial banks | 682.2K | 1.77% | 1.77% | $25.64B | Feb 3, 2026 | ▼ 63.0K |
NORTHERN TRUST CORP state commercial banks | 484.8K | 1.26% | 1.26% | $18.22B | Nov 14, 2025 | ▼ 1.1K |
MILLENNIUM MANAGEMENT LLC state commercial banks | 459.2K | 1.19% | 1.19% | $17.26B | Nov 14, 2025 | ▲ 115.3K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
17
Increased
+523.8K shares0
New Positions
first time holders31
Decreased
−512.8K shares0
Sold Out
fully exitedNet shares change (top 50)
+10.9K
+523.8K / −512.8K
Net new holders
-14
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
STBA insider trading · insider activity
Source: SEC Form 4
67
Buy transactions
66
Sell transactions
1.02
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Lazzari Melanie A Executive Vice President | Jun 1, 2026 | Award | 1,500 | — | — | 1.5K | Form 4 ↗ |
Nicholson Susan A Executive Vice President | Jun 1, 2026 | Award | 3,000 | — | — | 3.0K | Form 4 ↗ |
Smydo Rachel Lynn Executive Vice President | Jun 1, 2026 | Award | 1,500 | — | — | 1.5K | Form 4 ↗ |
Yesho LaDawn D Executive Vice President | Jun 1, 2026 | Award | 1,500 | — | — | 1.5K | Form 4 ↗ |
Adkins Lewis W Jr director | May 12, 2026 | Award | 1,136 | — | — | 1.1K | Form 4 ↗ |
Barsz Peter Richard director | May 12, 2026 | Award | 1,136 | — | — | 1.1K | Form 4 ↗ |
Cassotis Christina Anne director | May 12, 2026 | Award | 1,136 | — | — | 1.1K | Form 4 ↗ |
Doliveira Stephanie Nycum director | May 12, 2026 | Award | 1,136 | — | — | 1.1K | Form 4 ↗ |
DONNELLY MICHAEL J director | May 12, 2026 | Award | 1,136 | — | — | 1.1K | Form 4 ↗ |
GRUBE JEFFREY D director | May 12, 2026 | Award | 1,136 | — | — | 1.1K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
S&T Bancorp, Inc. (STBA) is primarily owned by institutional investors, who hold approximately 74.1% of total shares outstanding. Company insiders own approximately 1.34%, while retail and public investors account for the remaining 24.57%.
The largest institutional shareholder of S&T Bancorp, Inc. is BLACKROCK, INC., holding approximately 5.45 million shares — equal to 14.12% of outstanding shares — as of September 30, 2025.
A total of 209 institutional investors currently hold STBA stock, with a combined institutional value of approximately $1.00 billion as of the most recent 13F filing period.
Frequently asked questions
STBA ownershipS&T Bancorp, Inc. (STBA) is primarily owned by institutional investors, who hold approximately 74.1% of shares. The largest shareholder is BLACKROCK, INC. with a 14.12% stake. Company insiders hold 1.34%. Data sourced from SEC Form 13F as of September 30, 2025.