Trustmark Corporation (TRMK) Ownership
TRMK ownership summary
as of October 18, 2026- Institutions
- 82.2% of shares outstanding
- Insiders
- 6.84% of shares outstanding
- Shares outstanding
- 58.2M
- Float
- 56.6M shares available to trade
- Short interest
- 8.20% 3.4M shares short
- Days to cover
- 8.14 short interest up 1.8% vs prior month
- Institutions 82.23%
- Insiders 6.84%
- Other investors 10.93%
TRMK top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 14.82% | 8.6M | $386.4M | +303,863 (+3.7%) | June 30, 2026 |
| 2 | Dimensional Fund Advisors, Inc. | 6.79% | 3.9M | $176.9M | +42,526 (+1.1%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 6.14% | 3.6M | $160.0M | +37,860 (+1.1%) | June 30, 2026 |
| 4 | State Street Corp | 5.70% | 3.3M | $148.7M | +337,527 (+11.3%) | June 30, 2026 |
| 5 | Vanguard Capital Management, LLC | 4.37% | 2.5M | $114.1M | −4,923 (−0.2%) | June 30, 2026 |
| 6 | Earnest Partners LLC | 4.20% | 2.4M | $109.5M | −93,577 (−3.7%) | June 30, 2026 |
| 7 | American Century Companies Inc | 2.92% | 1.7M | $76.1M | +429,145 (+33.9%) | June 30, 2026 |
| 8 | Geode Capital Management, LLC | 2.75% | 1.6M | $71.7M | +81,274 (+5.4%) | June 30, 2026 |
| 9 | North Reef Capital Management LP | 2.70% | 1.6M | $70.3M | −387,379 (−19.8%) | June 30, 2026 |
| 10 | Wellington Management Company LLP | 2.63% | 1.5M | $68.7M | −1.8M (−53.6%) | June 30, 2026 |
| 11 | Millennium Management LLC | 1.66% | 961K | $43.2M | +899,808 (+1,467.7%) | June 30, 2026 |
| 12 | The Goldman Sachs Group Inc | 1.50% | 871K | $39.1M | +140,143 (+19.2%) | June 30, 2026 |
| 13 | UBS Group AG | 1.46% | 849K | $38.1M | −12,296 (−1.4%) | June 30, 2026 |
| 14 | Charles Schwab Investment Management Inc | 1.28% | 745K | $33.5M | −33,577 (−4.3%) | June 30, 2026 |
| 15 | Northern Trust Corp | 1.19% | 690K | $31.0M | +42,762 (+6.6%) | June 30, 2026 |
| 16 | Federated Hermes Inc | 0.88% | 513K | $23.0M | +66,604 (+14.9%) | June 30, 2026 |
| 17 | Morgan Stanley - Brokerage Accounts | 0.88% | 512K | $23.0M | +67,034 (+15.1%) | June 30, 2026 |
| 18 | Arrowstreet Capital Limited Partnership | 0.87% | 506K | $22.7M | +125,856 (+33.1%) | June 30, 2026 |
| 19 | Bank of New York Mellon Corp | 0.85% | 493K | $22.1M | +6,855 (+1.4%) | June 30, 2026 |
| 20 | Bridgeway Capital Management, LLC | 0.70% | 409K | $18.4M | +10,573 (+2.7%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 14 holders added 2.6M shares and 6 cut 2.3M.
TRMK top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 5.99% | 3.5M | $156.1M | — | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.05% | 1.8M | $79.4M | — | August 31, 2026 |
| 3 | Avantis US Small Cap Value ETF | 2.75% | 1.6M | $71.6M | +2,088 (+0.1%) | September 30, 2026 |
| 4 | iShares Russell 2000 ETF | 2.46% | 1.4M | $64.3M | — | September 30, 2026 |
| 5 | Vanguard Small Cap Index | 2.14% | 1.2M | $55.8M | −37,881 (−3.0%) | September 30, 2026 |
| 6 | Harbor Small Cap Value Instl | 1.59% | 920K | $41.3M | −17,805 (−1.9%) | September 30, 2026 |
| 7 | Vanguard MStar Small Cap Value Index | 1.39% | 808K | $36.3M | −5,490 (−0.7%) | September 30, 2026 |
| 8 | DFA US Small Cap Value I | 1.35% | 784K | $35.2M | — | August 31, 2026 |
| 9 | Fidelity Small Cap Index | 1.06% | 615K | $27.6M | +4,949 (+0.8%) | July 31, 2026 |
| 10 | DFA US Targeted Value I | 0.96% | 560K | $25.1M | — | August 31, 2026 |
| 11 | State Street SPDR Port S&P 600 Sm CpETF | 0.92% | 532K | $23.9M | — | September 30, 2026 |
| 12 | iShares Russell 2000 Value ETF | 0.90% | 525K | $23.6M | — | September 30, 2026 |
| 13 | State Street® SPDR® S&PRgnllBkgETF | 0.86% | 497K | $22.3M | +14,848 (+3.1%) | September 30, 2026 |
| 14 | Dimensional US Targeted Value ETF | 0.79% | 459K | $20.6M | — | September 30, 2026 |
| 15 | Vanguard Tax-Managed Small Cap Adm | 0.71% | 411K | $18.4M | — | September 30, 2026 |
| 16 | Federated Hermes MDT Small Cap Core IS | 0.61% | 355K | $15.9M | +45,978 (+14.9%) | June 30, 2026 |
| 17 | Dimensional US Small Cap Value ETF | 0.58% | 335K | $15.0M | +170 (+0.1%) | September 24, 2026 |
| 18 | DFA US Small Cap I | 0.57% | 330K | $14.8M | — | August 31, 2026 |
| 19 | Vanguard Russell 2000 ETF | 0.56% | 324K | $14.5M | −36 (−0.0%) | September 30, 2026 |
| 20 | State Street® SPDR® S&P® Bank ETF | 0.55% | 322K | $14.4M | −13,880 (−4.1%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
TRMK insider transactions
latest 3| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-08-26 | Gerard R Host | Sell | $40.63 | 1,556 | $63,220 |
| 2025-08-18 | Gerard R Host | Sell | $38.49 | 20,970 | $807,135 |
| 2025-08-18 | Marcelo L Eduardo | Sell | $38.49 | 700 | $26,943 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
TRMK shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns TRMK
Institutional investors own 82.2% of Trustmark's shares and insiders 6.84%. The largest holder is BlackRock Inc with 14.82% of the shares (8.6M), as of June 30, 2026. Among the top 20 institutions, 14 added shares and 6 reduced their stake in the latest filings. Short interest is 8.20% of the float, or 8.14 days of average trading volume. The share count fell 11.4% since 2014.
Related: TRMK analyst forecast, TRMK key metrics, TRMK dividend history. See the TRMK stock overview for the latest quote and news.
TRMK ownership FAQ
Who owns the most Trustmark stock?
The largest shareholders of Trustmark are BlackRock Inc (14.82%), Dimensional Fund Advisors, Inc. (6.79%), Vanguard Portfolio Management, LLC (6.14%), State Street Corp (5.70%), Vanguard Capital Management, LLC (4.37%).
What percentage of Trustmark is owned by institutions?
Institutions hold 82.2% of Trustmark's shares outstanding; insiders hold 6.84%.
Which funds own Trustmark?
The largest fund holders of Trustmark are iShares Core S&P Small-Cap ETF (5.99%), Vanguard MStar Total Stk Mkt Idx Invest (3.05%), Avantis US Small Cap Value ETF (2.75%), iShares Russell 2000 ETF (2.46%), Vanguard Small Cap Index (2.14%).
What is Trustmark's short interest?
3.4M shares of Trustmark were sold short, 8.20% of the float; at the average daily volume it would take 8.14 days to cover.
Are insiders buying or selling Trustmark?
Of the latest 3 reported insider transactions in Trustmark (since August 18, 2025), 0 were purchases and 3 were sales.
How many shares of Trustmark are outstanding?
Trustmark has 58.2M shares outstanding, of which 56.6M are in the public float.