Amerant Bancorp Inc.
Amerant Bancorp Inc. (AMTB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · AMTB · as of Sep 30, 2025
Ownership Breakdown
133
Institutional Holders
▲ 3 vs Q2
$508.69M
Total Inst. Value
▲ $15.94M vs Q2
39.35M
Shares Outstanding
freeFloat 89.88%
26.40M
13F Shares Held
▼ 630,160 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
AMTB largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
WELLINGTON MANAGEMENT GROUP LLP national commercial banks | 5.73M | 13.71% | 13.71% | $110.46B | Nov 14, 2025 | ▲ 19.4K |
BLACKROCK, INC. national commercial banks | 2.88M | 6.88% | 6.88% | $55.42B | Nov 12, 2025 | ▼ 12.2K |
national commercial banks | 2.32M | 5.54% | 5.54% | $44.62B | Dec 19, 2025 | NEW |
VANGUARD GROUP INC national commercial banks | 2.22M | 5.31% | 5.31% | $42.74B | Nov 7, 2025 | ▲ 61.5K |
DIMENSIONAL FUND ADVISORS LP national commercial banks | 1.34M | 3.19% | 3.19% | $25.74B | Nov 12, 2025 | ▲ 25.1K |
STATE STREET CORP national commercial banks | 1.07M | 2.56% | 2.56% | $20.60B | Nov 14, 2025 | ▲ 37.5K |
MALTESE CAPITAL MANAGEMENT LLC national commercial banks | 967.3K | 2.31% | 2.31% | $18.64B | Nov 14, 2025 | ▼ 75.3K |
GEODE CAPITAL MANAGEMENT, LLC national commercial banks | 882.6K | 2.11% | 2.11% | $17.01B | Nov 12, 2025 | ▲ 26.9K |
GOLDMAN SACHS GROUP INC national commercial banks | 606.6K | 1.45% | 1.45% | $11.69B | Nov 14, 2025 | ▼ 303.3K |
VERITION FUND MANAGEMENT LLC national commercial banks | 484.1K | 1.16% | 1.16% | $9.33B | Nov 14, 2025 | ▼ 10.4K |
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
24
Increased
+1.24M shares3
New Positions
first time holders16
Decreased
−1.20M shares0
Sold Out
fully exitedNet shares change (top 50)
+44.9K
+1.24M / −1.20M
Net new holders
+11
3 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
AMTB insider trading · insider activity
Source: SEC Form 4
21
Buy transactions
11
Sell transactions
1.91
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 |
|---|---|---|---|---|---|---|---|
Wilson Millar director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | Form 4 ↗ |
Suarez Oscar director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | Form 4 ↗ |
Lutoff-Perlo Lisa director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | Form 4 ↗ |
MORRISON PATRICIA director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | Form 4 ↗ |
KOPNISKY JACK L director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | Form 4 ↗ |
Marturet M. Gustavo director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | Form 4 ↗ |
Almeida Odilon director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | Form 4 ↗ |
Quill John Walton director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | Form 4 ↗ |
Rucker Ashaki director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | Form 4 ↗ |
Knight Erin D. director | Jun 2, 2026 | Award | 2,885 | — | — | 2.9K | 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
Amerant Bancorp Inc. (AMTB) is primarily owned by institutional investors, who hold approximately 67.1% of total shares outstanding. Company insiders own approximately 10.12%, while retail and public investors account for the remaining 22.80%.
The largest institutional shareholder of Amerant Bancorp Inc. is WELLINGTON MANAGEMENT GROUP LLP, holding approximately 5.73 million shares — equal to 13.71% of outstanding shares — as of September 30, 2025.
A total of 133 institutional investors currently hold AMTB stock, with a combined institutional value of approximately $508,688,515 as of the most recent 13F filing period.
Frequently asked questions
AMTB ownershipAmerant Bancorp Inc. (AMTB) is primarily owned by institutional investors, who hold approximately 67.1% of shares. The largest shareholder is WELLINGTON MANAGEMENT GROUP LLP with a 13.71% stake. Company insiders hold 10.12%. Data sourced from SEC Form 13F as of September 30, 2025.