ASSURANT INC (AIZ) Institutional Shareholders
ASSURANT INC (AIZ) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $9.07B in AIZ holdings during the latest filing period.
Bank Of New York Mellon Corp is currently the largest disclosed institutional shareholder of AIZ tracked by InsiderSet, reporting ownership valued at approximately $1.05B in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.34B, representing an estimated gain of +28.18% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 55% of the total disclosed AIZ value among the investors covered in this analysis. Major shareholders include Bank Of New York Mellon Corp, Blackrock, Inc., Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in ASSURANT INC (AIZ).
This page ranks the largest institutional AIZ shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
587
Total Reported Value
$9.07B
Largest Holder
Bank Of New York Mellon Corp
Largest Position
$1.05B
Insider Transactions (90d)
11
Latest Filing Quarter
Q2 2026
New Institutional Positions
73
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Bank Of New York Mellon Corp | 0.19% | 4,816,951 | $1,049,179,906 | $1,344,844,550 | +$295,664,644 | +28.18% | |
| Blackrock, Inc. | 0.02% | 3,945,876 | $859,451,300 | $1,101,649,120 | +$242,197,820 | +28.18% | |
| Vanguard Capital Management Llc | 0.02% | 3,243,504 | $706,467,606 | $905,553,882 | +$199,086,276 | +28.18% | |
| Vanguard Portfolio Management Llc | 0.03% | 3,008,137 | $655,202,320 | $839,841,769 | +$184,639,449 | +28.18% | |
| State Street Corp | 0.02% | 2,531,416 | $551,367,719 | $706,746,033 | +$155,378,314 | +28.18% | |
| Geode Capital Management, Llc | 0.02% | 1,406,786 | $305,912,667 | $392,760,583 | +$86,847,916 | +28.39% | |
| Invesco Ltd. | 0.04% | 1,226,447 | $267,132,420 | $342,411,738 | +$75,279,318 | +28.18% | |
| Dimensional Fund Advisors Lp | 0.05% | 1,125,406 | $245,120,678 | $314,202,101 | +$69,081,423 | +28.18% | |
| Massachusetts Financial Services Co | 0.07% | 922,421 | $200,912,517 | $257,530,719 | +$56,618,202 | +28.18% | |
| Voya Investment Management Llc | 0.19% | 834,121 | $181,241,006 | $232,878,242 | +$51,637,236 | +28.49% | |
| Fmr Llc | 0.01% | 750,361 | $163,436,172 | $209,493,288 | +$46,057,116 | +28.18% | |
| Fuller & Thaler Asset Management, Inc. | 0.51% | 697,535 | $151,930,101 | $194,744,797 | +$42,814,696 | +28.18% | |
| Morgan Stanley | 0.01% | 656,985 | $143,098,186 | $183,423,642 | +$40,325,456 | +28.18% | |
| Nordea Investment Management Ab | 0.13% | 661,921 | $141,962,197 | $184,801,724 | +$42,839,527 | +30.18% | |
| First Trust Advisors Lp | 0.10% | 632,896 | $137,851,108 | $176,698,234 | +$38,847,126 | +28.18% | |
| Lyrical Asset Management Lp | 2.03% | 612,104 | $133,322,372 | $170,893,316 | +$37,570,944 | +28.18% | |
| Northern Trust Corp | 0.01% | 512,825 | $111,698,414 | $143,175,612 | +$31,477,198 | +28.18% | |
| Schroder Investment Management Group | 0.09% | 499,734 | $108,847,063 | $139,520,735 | +$30,673,672 | +28.18% | |
| Qube Research & Technologies Ltd | 0.15% | 486,578 | $105,981,554 | $135,847,712 | +$29,866,158 | +28.18% | |
| Charles Schwab Investment Management Inc | 0.02% | 466,506 | $101,609,672 | $130,243,810 | +$28,634,138 | +28.18% | |
| Wellington Management Group Llp | 0.02% | 462,519 | $100,741,263 | $129,130,680 | +$28,389,417 | +28.18% | |
| Fil Ltd | 0.08% | 456,359 | $99,399,554 | $127,410,869 | +$28,011,315 | +28.18% | |
| First Manhattan Co. Llc. | 0.25% | 408,589 | $88,994,770 | $114,073,963 | +$25,079,193 | +28.18% | |
| Bank Of America Corp | 0.01% | 361,210 | $78,675,213 | $100,846,220 | +$22,171,007 | +28.18% | |
| Woodline Partners Lp | 0.29% | 356,532 | $77,656,235 | $99,540,169 | +$21,883,934 | +28.18% | |
| Adage Capital Partners Gp, L.L.C. | 0.12% | 344,640 | $75,066,038 | $96,220,042 | +$21,154,004 | +28.18% | |
| Jupiter Asset Management Ltd | 0.38% | 328,630 | $71,578,900 | $91,750,210 | +$20,171,310 | +28.18% | |
| Nomura Asset Management International Inc. | 0.12% | 321,135 | $69,946,000 | $89,657,681 | +$19,711,681 | +28.18% | |
| Deutsche Bank Ag\ | 0.02% | 320,199 | $69,742,545 | $89,396,359 | +$19,653,814 | +28.18% | |
| Vanguard Fiduciary Trust Co | 0.02% | 281,617 | $61,338,999 | $78,624,650 | +$17,285,651 | +28.18% | |
| Millennium Management Llc | 0.04% | 259,560 | $56,534,764 | $72,466,556 | +$15,931,792 | +28.18% | |
| Td Asset Management Inc | 0.04% | 251,887 | $54,863,507 | $70,324,332 | +$15,460,825 | +28.18% | |
| Goldman Sachs Group Inc | 0.01% | 217,441 | $47,360,912 | $60,707,353 | +$13,346,441 | +28.18% | |
| Aqr Capital Management Llc | 0.02% | 212,830 | $46,194,709 | $59,420,008 | +$13,225,299 | +28.63% | |
| American Century Companies Inc | 0.02% | 190,999 | $41,601,493 | $53,325,011 | +$11,723,518 | +28.18% | |
| Storebrand Asset Management As | 0.01% | 275,282 | $37,868,300 | $76,855,982 | +$38,987,682 | +102.96% | |
| Clark Capital Management Group, Inc. | 0.23% | 172,329 | $37,535,087 | $48,112,534 | +$10,577,447 | +28.18% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 169,899 | $37,005,701 | $47,434,102 | +$10,428,401 | +28.18% | |
| Arrowstreet Capital, Limited Partnership | 0.02% | 158,906 | $34,611,316 | $44,364,966 | +$9,753,650 | +28.18% | |
| Victory Capital Management Inc | 0.02% | 153,781 | $33,495,040 | $42,934,117 | +$9,439,077 | +28.18% | |
| Amundi | 0.01% | 151,136 | $32,918,932 | $42,195,660 | +$9,276,728 | +28.18% | |
| Pfa Pension, Forsikringsaktieselskab | 0.10% | 149,485 | $32,559,330 | $41,734,717 | +$9,175,387 | +28.18% | |
| Allianz Asset Management Gmbh | 0.04% | 146,740 | $31,961,439 | $40,968,341 | +$9,006,902 | +28.18% | |
| Prudential Financial Inc | 0.04% | 143,262 | $31,203,896 | $39,997,318 | +$8,793,422 | +28.18% | |
| Ubs Group Ag | 0.01% | 138,271 | $30,116,807 | $38,603,880 | +$8,487,073 | +28.18% | |
| Jain Global Llc | 0.38% | 137,217 | $29,887,235 | $38,309,614 | +$8,422,379 | +28.18% | |
| California Public Employees Retirement System | 0.02% | 132,402 | $28,838,480 | $36,965,314 | +$8,126,834 | +28.18% | |
| Calamos Advisors Llc | 0.10% | 105,285 | $28,272,181 | $29,394,519 | +$1,122,338 | +3.97% | |
| Nuveen, Llc | 0.01% | 126,869 | $27,633,336 | $35,420,556 | +$7,787,220 | +28.18% | |
| Deprince Race & Zollo Inc | 0.50% | 120,545 | $26,255,906 | $33,654,959 | +$7,399,053 | +28.18% |
Frequently asked questions about AIZ
Who owns the most AIZ stock?
The largest holders of AIZ are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ASSURANT INC (AIZ).
Is AIZ widely held by superinvestors?
Many widely followed stocks like AIZ appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly AIZ is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.