Ticker · CUSIP 44891N208
Holders (tracked)
11
Combined shares
6,450,007
Combined value
$249.94M
Last close
$43.49
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is +12.2% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
20 events
- AQR Capital Management added2026-02-17+502,927 shares · 2025Q413F
- T. Rowe Price added2026-02-17+2,415 shares · 2025Q413F
- Wellington Management trimmed2026-02-17−3,893 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−116,177 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−83,888 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−162,748 shares · 2025Q413F
- Ray Dalio (Bridgewater Associates) added2026-02-13+29,582 shares · 2025Q413F
- Southeastern Asset (Longleaf) added2026-02-13+1,221,829 shares · 2025Q413F
- Mario Gabelli (GAMCO) trimmed2026-02-05−4,972 shares · 2025Q413F
- AQR Capital Management added2025-11-14+349,969 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−53,823 shares · 2025Q313F
- D.E. Shaw & Co. opened position2025-11-14+503,521 shares · 2025Q313F
- T. Rowe Price added2025-11-14+3,576 shares · 2025Q313F
- Wellington Management added2025-11-14+91,304 shares · 2025Q313F
- Southeastern Asset (Longleaf) trimmed2025-11-14−163,469 shares · 2025Q313F
- Renaissance Technologies exited2025-11-13−42,127 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−830,883 shares · 2025Q313F
- +6,237 shares · 2025Q313F
- Mario Gabelli (GAMCO) trimmed2025-11-12−393 shares · 2025Q313F
- Norges Bank (Norway SWF) added2025-11-12+1,381 shares · 2024Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of IAC…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Wellington Management | 2021Q2 | $36.60 | +18.8% | $4.3M |
| D.E. Shaw & Co. | 2021Q2 | $36.78 | +18.2% | $18.2M |
| Ken Griffin (Citadel Advisors) | 2021Q2 | $37.12 | +17.2% | $452K |
| Ken Griffin (Citadel Advisors) | 2021Q2 | $37.12 | +17.2% | $452K |
| Ken Griffin (Citadel Advisors) | 2021Q2 | $37.12 | +17.2% | $452K |
| Izzy Englander (Millennium Mgmt) | 2021Q2 | $38.36 | +13.4% | $971K |
| AQR Capital Management | 2021Q2 | $41.49 | +4.8% | $71.8M |
| Ray Dalio (Bridgewater Associates) | 2022Q2 | $45.53 | -4.5% | $1.6M |
| Southeastern Asset (Longleaf) | 2021Q3 | $72.74 | -40.2% | $173.5M |
| T. Rowe Price | 2021Q2 | $115.69 | -62.4% | $2.5M |
| Mario Gabelli (GAMCO) | 2021Q2 | $138.00 | -68.5% | $660K |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions0
—
Added to4
- Southeastern Asset (Longleaf)+1,221,829$47.8M
- AQR Capital Management+502,927$19.7M
- Ray Dalio (Bridgewater Associates)+29,582$1.2M
- T. Rowe Price+2,415$94
Trimmed5
- Izzy Englander (Millennium Mgmt)−162,748$6.4M
- Ken Griffin (Citadel Advisors)−116,177$4.5M
- D.E. Shaw & Co.−83,888$3.3M
- Mario Gabelli (GAMCO)−4,972$194K
- Wellington Management−3,893$152K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 16 | $81.79B |
| 2022Q2 | 17 | $51.59B |
| 2022Q3 | 24 | $50.4M |
| 2022Q4 | 19 | $544.9M |
| 2023Q1 | 17 | $495.4M |
| 2023Q2 | 18 | $610.0M |
| 2023Q3 | 16 | $420.7M |
| 2023Q4 | 14 | $389.9M |
| 2024Q1 | 14 | $420.1M |
| 2024Q2 | 11 | $604.9M |
| 2024Q3 | 11 | $216.0M |
| 2024Q4 | 15 | $221.8M |
| 2025Q1 | 10 | $201.0M |
| 2025Q2 | 11 | $198.4M |
| 2025Q3 | 11 | $172.0M |
| 2025Q4 | 11 | $249.9M |
Who owns IAC
11 super-investors · 2025Q4
Tracked stake
6.45M
shares
Combined value
$250M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added4Trim7
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Southeastern Asset Longleaf | 3.99M | $156M |
| 2 | AQR Capital Management | 1.65M | $65M |
| 3 | D.E. Shaw & Co. | 419.6K | $16M |
| 4 | Ken Griffin Citadel Advisors | 101.9K | $4M |
| 5 | Wellington Management | 99.7K | $4M |
| 6 | Ken Griffin Citadel Advisors | 46.6K | $2M |
| 7 | Ray Dalio Bridgewater Associates | 35.8K | $1M |
| 8 | Izzy Englander Millennium Mgmt | 22.3K | $873K |
| 9 | Mario Gabelli GAMCO | 15.2K | $594K |
| 10 | Ken Griffin Citadel Advisors | 10.4K | $407K |
| 11 | T. Rowe Price | 57.9K | $2K |
Recent moves
20 transactions
- −3,893 · 2025Q4
- −116,177 · 2025Q4
- +2,415 · 2025Q4
- +502,927 · 2025Q4
- −162,748 · 2025Q4
- TRIMD.E. Shaw & Co.−83,888 · 2025Q4
- +29,582 · 2025Q4
- +1,221,829 · 2025Q4
- −4,972 · 2025Q4
- −53,823 · 2025Q3
- −163,469 · 2025Q3
- +503,521 · 2025Q3
- +349,969 · 2025Q3
- +3,576 · 2025Q3
- +91,304 · 2025Q3
- +6,237 · 2025Q3
- −42,127 · 2025Q3
- −830,883 · 2025Q3
- −393 · 2025Q3
- +1,381 · 2024Q3
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