The largest holder of Assurant stock is BNY Mellon Investment Adviser, Inc., with 5.0 million shares (10.07% of the company), worth about $1.40 billion as of September 25, 2026. The 10 largest holders together own 50.0%.
In Q2 2026, 632 institutional holdings reports listed shares worth $13.10 billion.
Insiders reported 42 transactions in the last two years: 12 sales worth $8.57 million and no purchases. The newest one on file is from May 14, 2026 (Rosenblum Jay E., Officer).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through May 14, 2026.

2026Q2
| Holder | Shares | % of company | Value |
|---|---|---|---|
| BNY Mellon Investment Adviser, Inc. | 5.0 million | 10.07% | $1.4B |
| BlackRock Advisors LLC | 3.8 million | 7.65% | $1.1B |
| Vanguard Capital Management LLC | 3.2 million | 6.56% | $912.0M |
| Vanguard Portfolio Management LLC | 2.8 million | 5.75% | $799.0M |
| State Street Corporation | 2.5 million | 5.15% | $716.0M |
| T. Rowe Price Investment Management, Inc. | 2.4 million | 4.92% | $684.0M |
| Geode Capital Management LLC | 1.4 million | 2.87% | $399.0M |
| Invesco Advisers, Inc. | 1.2 million | 2.49% | $346.0M |
| T. Rowe Price International Ltd. | 1.1 million | 2.32% | $322.0M |
| DFA Australia Ltd. | 1.1 million | 2.22% | $308.0M |
As of September 25, 2026.
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 632 | – | $13.1B |
| Q1 2026 | 599 | 47.0 million | $10.2B |
| Q4 2025 | 578 | 51.1 million | $12.3B |
| Q3 2025 | 552 | 47.1 million | $10.2B |
| Q2 2025 | 564 | 48.3 million | $9.5B |
| Q1 2025 | 581 | 49.6 million | $10.5B |
| Q4 2024 | 583 | 48.9 million | $10.4B |
| Q3 2024 | 541 | 50.1 million | $9.8B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Rosenblum Jay E. | May 14, 2026 | Officer | Sale at price 251.77 per share. | $503,540 |
| Dirienzo Dimitry | Mar 20, 2026 | Officer | Sale at price 210.98 per share. | $158,235 |
| Sengupta Subhashish | Mar 20, 2026 | Officer | Sale at price 210.53 - 215.00 per share. | $400,096 |
| Demmings Keith | Mar 16, 2026 | Chief Executive Officer | Stock Award(Grant) at price 0.00 - 222.15 per share. | $2.5M |
| Rosenblum Jay E. | Mar 16, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Dirienzo Dimitry | Mar 16, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Meier Keith | Mar 16, 2026 | Chief Financial Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Strickland Jeffrey A. | Mar 16, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Lumsden Ryan | Mar 16, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Sengupta Subhashish | Mar 16, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Campbell Michael P | Mar 16, 2026 | Chief Operating Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Nair Biju | Mar 16, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
Newest 12 of 42 insider transactions in the last two years.
BNY Mellon Investment Adviser, Inc., with 10.07% of the company (as of September 25, 2026). Next: BlackRock Advisors LLC (7.65%) and Vanguard Capital Management LLC (6.56%).
632 institutional holdings reports listed Assurant shares in Q2 2026 worth $13.10 billion.
In the last two years insiders reported 12 sales and no purchases (42 transactions in all); the newest on file is from May 14, 2026.