IAC INC (IAC) Institutional Shareholders
IAC INC (IAC) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $3.12B in IAC holdings during the latest filing period.
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 58% 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
329
Total Reported Value
$3.12B
Largest Holder
Blackrock, Inc.
Largest Position
$356.49M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
52
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% | |
| 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% | |
| Sixth Street Partners Management Company, L.P. | 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% | |
| Allen Holding Inc | 2.74% | 601,100 | $27,746,776 | $25,390,464 | -$2,356,312 | -8.49% | |
| Citadel Advisors Llc | 0.02% | 573,184 | $26,458,173 | $24,211,292 | -$2,246,881 | -8.49% | |
| 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% |
| 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% | |
| 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% | |
| Allen Operations Llc | 2.04% | 319,477 | $14,747,059 | $13,494,708 | -$1,252,351 | -8.49% | |
| 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% | |
| Principal Financial Group Inc | 0.01% | 301,075 | $13,897,622 | $12,717,408 | -$1,180,214 | -8.49% | |
| Acr Alpine Capital Research, Llc | 0.19% | 291,826 | $13,470,688 | $12,326,730 | -$1,143,958 | -8.49% | |
| Russell Investments Group, Ltd. | 0.01% | 288,878 | $13,334,672 | $12,202,207 | -$1,132,465 | -8.49% | |
| 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% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 209,999 | $8,406,261 | $8,870,358 | +$464,097 | +5.52% | |
| Yakira Capital Management, Inc. | 2.29% | 168,410 | $7,773,806 | $7,113,638 | -$660,168 | -8.49% |
Frequently asked questions about IAC
Who owns the most IAC stock?
The largest holders of IAC 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 IAC INC (IAC).
Is IAC widely held by superinvestors?
Many widely followed stocks like IAC appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly IAC 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.