IAC Institutional Ownership & Shareholders
IAC INC (IAC) is currently held by 325 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $3.18B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of IAC tracked by InsiderSet, reporting ownership valued at approximately $356.49M in its June 30, 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 $326.22M, representing an estimated loss of -8.49% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 57% of the total disclosed IAC value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Aristeia Capital, L.L.C., Helikon Investments Ltd, and several other long-term asset managers with concentrated positions in IAC INC (IAC).
This page ranks the largest institutional IAC 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
325
Total Reported Value
$3.18B
Largest Holder
Blackrock, Inc.
Largest Position
$356.49M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
47
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 7,722,920 | $356,489,989 | $326,216,141 | -$30,273,848 | -8.49% | |
| Aristeia Capital, L.L.C. | 4.43% | 6,101,439 | $281,642,424 | $257,724,783 | -$23,917,641 | -8.49% | |
| Helikon Investments Ltd | 7.79% | 5,652,519 | $260,920,277 | $238,762,403 | -$22,157,874 | -8.49% | |
| Vanguard Portfolio Management Llc | 0.01% | 3,442,491 | $158,905,385 | $145,410,820 | -$13,494,565 | -8.49% | |
| Longleaf Partners | Mason Hawkins | 7.54% | 3,131,835 | $144,565,503 | $132,288,710 | -$12,276,793 | -8.49% |
| Vanguard Capital Management Llc | 0.00% | 2,813,606 | $129,876,053 | $118,846,717 | -$11,029,336 | -8.49% | |
| Corvex Management Lp | 4.01% | 2,793,715 | $128,957,884 | $118,006,522 | -$10,951,362 | -8.49% | |
| Aqr Capital Management Llc | 0.04% | 2,723,710 | $125,481,321 | $115,049,510 | -$10,431,811 | -8.31% | |
| Patient Capital Management, Llc | 3.72% | 2,425,558 | $111,963,801 | $102,455,570 | -$9,508,231 | -8.49% | |
| Davis Selected Advisers | 0.47% | 2,394,024 | $110,507,409 | $101,123,574 | -$9,383,835 | -8.49% | |
| State Street Corp | 0.00% | 2,159,770 | $99,694,983 | $91,228,685 | -$8,466,298 | -8.49% | |
| Goldman Sachs Group Inc | 0.01% | 1,463,438 | $67,552,310 | $61,815,621 | -$5,736,689 | -8.49% | |
| Foursixthree Capital Lp | 12.94% | 1,342,201 | $61,955,998 | $56,694,570 | -$5,261,428 | -8.49% | |
| Geode Capital Management, Llc | 0.00% | 1,152,781 | $53,225,159 | $48,693,469 | -$4,531,690 | -8.51% | |
| Wallace Capital Management Inc. | 5.71% | 1,127,772 | $52,057,956 | $47,637,089 | -$4,420,867 | -8.49% | |
| Boston Partners | 0.05% | 1,111,298 | $51,294,424 | $46,941,228 | -$4,353,196 | -8.49% | |
| Thompson Siegel & Walmsley Llc | 0.88% | 1,063,090 | $49,072,000 | $44,904,922 | -$4,167,078 | -8.49% | |
| Morgan Stanley | 0.00% | 928,617 | $42,865,083 | $39,224,782 | -$3,640,301 | -8.49% | |
| Charles Schwab Investment Management Inc | 0.01% | 843,691 | $38,944,777 | $35,637,508 | -$3,307,269 | -8.49% | |
| Bank Of Montreal | 0.01% | 825,380 | $38,272,870 | $34,864,051 | -$3,408,819 | -8.91% | |
| Allspring Global Investments Holdings, Llc | 0.05% | 730,829 | $33,574,284 | $30,870,217 | -$2,704,067 | -8.05% | |
| Bank Of America Corp | 0.00% | 693,088 | $31,992,942 | $29,276,037 | -$2,716,905 | -8.49% | |
| Jpmorgan Chase & Co | 0.00% | 648,475 | $30,199,998 | $27,391,584 | -$2,808,414 | -9.30% | |
| Citadel Advisors Llc | 0.02% | 573,184 | $26,458,173 | $24,211,292 | -$2,246,881 | -8.49% | |
| Allen Holding Inc | 2.19% | 601,100 | $25,222,156 | $25,390,464 | +$168,308 | +0.67% | |
| State Of Wisconsin Investment Board | 0.04% | 477,644 | $22,048,047 | $20,175,683 | -$1,872,364 | -8.49% | |
| Northern Trust Corp | 0.00% | 465,568 | $21,490,619 | $19,665,592 | -$1,825,027 | -8.49% | |
| Invesco Ltd. | 0.00% | 464,588 | $21,445,382 | $19,624,197 | -$1,821,185 | -8.49% | |
| Royal Bank Of Canada | 0.00% | 447,489 | $20,656,000 | $18,901,935 | -$1,754,065 | -8.49% | |
| Renaissance Technologies LLC | Jim Simons | 0.03% | 444,827 | $20,533,214 | $18,789,492 | -$1,743,722 | -8.49% |
| Assenagon Asset Management S.A. | 0.02% | 466,280 | $19,565,109 | $19,695,667 | +$130,558 | +0.67% | |
| Ubs Group Ag | 0.00% | 411,103 | $18,976,515 | $17,364,991 | -$1,611,524 | -8.49% | |
| Gotham Asset Management, Llc | 0.04% | 399,173 | $18,425,826 | $16,861,068 | -$1,564,758 | -8.49% | |
| Royce & Associates Lp | 0.15% | 396,447 | $18,299,994 | $16,745,921 | -$1,554,073 | -8.49% | |
| Vanguard Fiduciary Trust Co | 0.00% | 394,730 | $18,220,737 | $16,673,395 | -$1,547,342 | -8.49% | |
| Acadian Asset Management Llc | 0.02% | 394,529 | $18,197,000 | $16,664,905 | -$1,532,095 | -8.42% | |
| Bragg Financial Advisors, Inc | 0.45% | 367,731 | $16,974,463 | $15,532,957 | -$1,441,506 | -8.49% | |
| Quantinno Capital Management Lp | 0.02% | 360,436 | $16,637,726 | $15,224,817 | -$1,412,909 | -8.49% | |
| Diamond Hill Capital Management Inc | 0.13% | 349,945 | $16,153,461 | $14,781,677 | -$1,371,784 | -8.49% | |
| Acr Alpine Capital Research, Llc | 0.21% | 363,022 | $15,232,404 | $15,334,049 | +$101,645 | +0.67% | |
| Bank Of New York Mellon Corp | 0.00% | 317,532 | $14,657,296 | $13,412,552 | -$1,244,744 | -8.49% | |
| Brooktree Capital Management | 9.47% | 314,206 | $14,503,749 | $13,272,061 | -$1,231,688 | -8.49% | |
| Allen Operations Llc | 1.38% | 319,477 | $13,405,255 | $13,494,708 | +$89,453 | +0.67% | |
| Russell Investments Group, Ltd. | 0.01% | 288,878 | $13,334,672 | $12,202,207 | -$1,132,465 | -8.49% | |
| Principal Financial Group Inc | 0.01% | 296,495 | $12,440,930 | $12,523,949 | +$83,019 | +0.67% | |
| Arex Capital Management, Lp | 16.54% | 250,000 | $10,007,500 | $10,560,000 | +$552,500 | +5.52% | |
| Public Sector Pension Investment Board | 0.03% | 214,459 | $9,899,427 | $9,058,748 | -$840,679 | -8.49% | |
| First Trust Advisors Lp | 0.01% | 209,764 | $9,682,640 | $8,860,431 | -$822,209 | -8.49% | |
| Raymond James Financial Inc | 0.00% | 203,040 | $9,372,326 | $8,576,410 | -$795,916 | -8.49% | |
| Applied Fundamental Research, Llc | 10.09% | 184,734 | $8,527,321 | $7,803,164 | -$724,157 | -8.49% |
Frequently asked questions about IAC
Who are the largest institutional holders of IAC?
The largest institutional holders of IAC reported in the latest SEC Form 13F filings include Blackrock, Inc., Aristeia Capital, L.L.C., Helikon Investments Ltd, Vanguard Portfolio Management Llc, and Longleaf Partners. InsiderSet ranks institutional holders by their latest reported IAC position.
What is IAC institutional ownership?
This page tracks IAC positions reported by institutional investment managers through SEC Form 13F. IAC INC (IAC) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own IAC?
InsiderSet currently tracks 325 institutional managers reporting IAC holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of IAC shareholders.
How much IAC stock do institutions own?
Institutional investment managers disclosed approximately $3.18B in IAC holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was IAC institutional ownership last updated?
The latest IAC institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional IAC holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its IAC position after the reporting date.
Are institutions buying or selling IAC?
Institutional buying and selling can be analyzed by comparing IAC positions across consecutive 13F reporting periods. InsiderSet's IAC Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View IAC ownership changes.
How has IAC institutional ownership changed over time?
InsiderSet tracks IAC institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.