Latest Period
Q4 2025
Security Snapshot
IAC Inc. - Common Stock (IAC) Institutional Ownership
CUSIP: 44891N208
13F Institutional Holders and Ownership History from Q2 2017 to Q1 2026
Institutions Reporting
349
Shares (Excl. Options)
71,073,363
Price
$39.10
Save this security page for your next review
Keep this CUSIP in your watchlists so you can revisit quarter changes from one place. If you create an account from here, we will bring you back after verification.
- Type / Class
- Equity / Common Stock
- Symbol
- IAC on Nasdaq
- Shares outstanding
- 71,221,696
- Price per share
- $40.26
- All holders as of 31 Dec 2025
- Q4 2025
- Total 13F shares
- 71,073,363
- Total reported value
- $2,778,739,512
- % of total 13F portfolios
- 0.01%
- Share change
- +4,496,060
- Value change
- +$186,067,970
- Number of holders
- 349
- Price from insider filings
- $40.26
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- IAC - IAC Inc. - Common Stock is tracked under CUSIP 44891N208.
- 349 institutions reported positions in Q4 2025.
- 7 significant owners is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 349 to 209 between Q4 2025 and Q1 2026.
- Reported value moved from $2,778,739,512 to $1,468,771,865.
Why This Matters
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 349 institutions filings for Q4 2025.
Investment Quick Answers
What is CUSIP 44891N208?
CUSIP 44891N208 identifies IAC - IAC Inc. - Common Stock in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 44891N208:
Significant Owners of IAC Inc. - Common Stock (IAC) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Diller Barry | 8.1% | $252,427,361 | 7,100,629 | BARRY DILLER | 13 Jan 2025 | |||
| ARISTEIA CAPITAL, L.L.C. | 8% | $226,045,475 | 5,702,459 | Aristeia Capital, L.L.C. | 31 Dec 2025 | |||
| HighSage Ventures LLC | 7.3% | +8.6% | $219,028,027 | +$16,814,612 | 5,394,779 | +8.3% | Stier Jennifer | 30 Jun 2025 |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | 5.6% | $158,137,438 | 3,989,340 | Southeastern Asset Management, Inc. | 31 Dec 2025 | |||
| JPMORGAN CHASE & CO | 4.9% | -43% | $124,354,035 | -$98,221,902 | 3,649,957 | -44% | JPMORGAN CHASE & CO. | 30 Sep 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.1% | $144,545,928 | 3,610,940 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| LEVIN JOSEPH | 1.3% | $36,320,937 | 1,021,686 | Joseph M. Levin | 13 Jan 2025 |
As of 31 Dec 2025, 349 institutional investors reported holding 71,073,363 shares of IAC Inc. - Common Stock (IAC). This represents 100% of the company’s total 71,221,696 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of IAC Inc. - Common Stock (IAC) together control 75% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 11% | 7,777,357 | -1.1% | 0.01% | $304,094,658 |
| VANGUARD GROUP INC | 9.7% | 6,921,604 | -4.9% | 0% | $270,634,717 |
| ARISTEIA CAPITAL, L.L.C. | 8% | 5,702,459 | +101% | 6.3% | $222,966,147 |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | 5.6% | 3,989,340 | +44% | 6.9% | $155,983,194 |
| Corvex Management LP | 4.7% | 3,355,075 | +20% | 4.4% | $131,183,433 |
| BANK OF MONTREAL /CAN/ | 4.4% | 3,128,104 | +42721% | 0.05% | $122,308,867 |
| Davis Selected Advisers | 3.5% | 2,514,072 | +12% | 0.44% | $98,300,787 |
| Patient Capital Management, LLC | 3.3% | 2,374,050 | +13% | 3.6% | $92,825,369 |
| STATE STREET CORP | 3.1% | 2,192,573 | -4.4% | 0% | $85,729,604 |
| THOMPSON SIEGEL & WALMSLEY LLC | 2.7% | 1,920,126 | -3.4% | 1.3% | $75,077,000 |
| Helikon Investments Ltd | 2.6% | 1,866,442 | +41% | 3.9% | $72,977,882 |
| AQR CAPITAL MANAGEMENT LLC | 2.3% | 1,651,207 | +44% | 0.03% | $64,562,194 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7% | 1,178,615 | -6.3% | 0% | $46,094,517 |
| MORGAN STANLEY | 1.3% | 907,983 | +5.2% | 0% | $35,502,188 |
| Wallace Capital Management Inc. | 1.2% | 883,775 | +20% | 4.2% | $34,555,603 |
| BANK OF AMERICA CORP /DE/ | 1.2% | 836,777 | +52% | 0% | $32,717,981 |
| UBS Group AG | 1.1% | 781,195 | +11% | 0.01% | $30,544,725 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.1% | 779,372 | -0.69% | 0% | $30,473,445 |
| Boston Partners | 1% | 744,569 | 0.03% | $29,113,848 | |
| Apollo Management Holdings, L.P. | 0.98% | 700,000 | 0.27% | $27,370,000 | |
| Empyrean Capital Partners, LP | 0.95% | 677,000 | 0.92% | $26,470,700 | |
| JPMORGAN CHASE & CO | 0.89% | 635,864 | -83% | 0% | $24,862,287 |
| BROWN ADVISORY INC | 0.89% | 630,495 | -11% | 0.03% | $24,652,354 |
| ALLEN HOLDING INC /NY | 0.84% | 601,100 | 0% | 2.2% | $23,503,010 |
| Allspring Global Investments Holdings, LLC | 0.83% | 592,879 | -5.9% | 0.04% | $23,145,996 |
Institutional Holders of IAC Inc. - Common Stock (IAC) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 36,703,606 | $1,468,771,865 | +$4,399,081 | $40.03 | 209 |
| 2025 Q4 | 71,073,363 | $2,778,739,512 | +$186,067,970 | $39.10 | 349 |
| 2025 Q3 | 69,626,070 | $2,379,034,937 | -$80,171,697 | $34.07 | 340 |
| 2025 Q2 | 71,564,248 | $2,673,949,908 | +$93,431,262 | $37.34 | 339 |
| 2025 Q1 | 68,423,058 | $3,130,129,761 | -$20,474,549 | $45.94 | 329 |
| 2024 Q4 | 69,244,030 | $2,986,916,976 | -$88,122,580 | $43.14 | 347 |
| 2024 Q3 | 69,382,999 | $3,733,853,917 | -$204,721,332 | $53.82 | 360 |
| 2024 Q2 | 73,232,059 | $3,431,605,288 | +$258,568,607 | $46.85 | 350 |
| 2024 Q1 | 67,341,414 | $3,591,200,313 | +$11,268,477 | $53.34 | 352 |
| 2023 Q4 | 67,225,918 | $3,521,513,672 | -$48,646,670 | $52.38 | 346 |
| 2023 Q3 | 68,206,021 | $3,435,093,895 | -$82,151,033 | $50.39 | 344 |
| 2023 Q2 | 69,635,073 | $4,357,340,780 | +$11,539,597 | $62.80 | 359 |
| 2023 Q1 | 69,636,373 | $3,591,521,048 | -$182,770,780 | $51.60 | 357 |
| 2022 Q4 | 74,077,960 | $3,288,205,500 | -$96,213,728 | $44.40 | 365 |
| 2022 Q3 | 74,722,845 | $4,137,569,838 | -$27,396,758 | $55.38 | 369 |
| 2022 Q2 | 74,769,747 | $5,675,729,771 | +$3,188,180 | $75.97 | 380 |
| 2022 Q1 | 74,591,501 | $7,477,054,717 | -$63,910,830 | $100.28 | 394 |
| 2021 Q4 | 74,568,175 | $9,743,443,398 | +$205,645,145 | $130.71 | 450 |
| 2021 Q3 | 72,259,744 | $9,414,925,492 | +$28,595,976 | $130.29 | 447 |
| 2021 Q2 | 71,697,925 | $11,044,059,992 | +$11,006,691,017 | $154.17 | 469 |
| 2021 Q1 | 356 | $55,000 | $154.49 | 1 | |
| 2020 Q4 | 356 | $55,000 | $154.49 | 1 | |
| 2020 Q3 | 356 | $55,000 | $154.49 | 1 | |
| 2020 Q2 | 356 | $55,000 | $154.49 | 1 | |
| 2020 Q1 | 356 | $55,000 | $154.49 | 1 | |
| 2019 Q4 | 356 | $55,000 | $154.49 | 1 | |
| 2019 Q3 | 356 | $55,000 | -$109,000 | $154.49 | 1 |
| 2019 Q2 | 856 | $164,000 | $186.25 | 2 | |
| 2019 Q1 | 856 | $160,000 | $182.25 | 2 | |
| 2018 Q4 | 500 | $92,000 | $184.00 | 1 | |
| 2018 Q3 | 500 | $108,000 | $216.00 | 1 | |
| 2018 Q2 | 500 | $76,000 | $152.00 | 1 | |
| 2018 Q1 | 500 | $78,000 | $156.00 | 1 | |
| 2017 Q4 | 500 | $61,000 | $122.00 | 1 | |
| 2017 Q3 | 500 | $59,000 | $118.00 | 1 | |
| 2017 Q2 | 500 | $52,000 | +$52,000 | $104.00 | 1 |