ICAHN PARTNERS MASTER FUND LP
CIK 1322827 · last filed 2025-11-07
ICAHN PARTNERS MASTER FUND LP is a corporate insider who has filed 72 SEC Form 4 insider transactions across 23 companies since 2007. The most recent filing shows the insider bought $33.3M of MNRO on Nov 7, 2025. Across all open-market trades the lifetime net is −$3.12B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $20.37B across reported positions. The firm reports its address in Sunny Isles, FL. 285 SEC filings were submitted jointly with CARL C ICAHN.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$20.37B
23
72
-$3.12B
Filer Profile
PH
SUNNY ISLES, FL 33160
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MNRO | 10%+ Owner | 4,977,151 | $12.79 | $63.66M | $62.45M | 2 | 2025-11-07 |
| SWX | 10%+ Owner | 9,632,604 | $86.11 | $829.46M | $347.07M | 8 | 2024-11-20 |
| HRI | 10%+ Owner | 2,853,421 | $140.96 | $402.22M | -$557.37M | 11 | 2023-02-10 |
| XRX | 10%+ Owner | 50,192,121 | $3.43 | $172.16M | $200.13M | 5 | 2022-04-25 |
| OXY.WS | 10%+ Owner | 86,027,271 | $39.50 | $3.40B | -$651.60M | 5 | 2021-04-02 |
| HLF | 10%+ Owner | 8,018,886 | $12.02 | $96.39M | -$1.17B | 5 | 2021-01-04 |
| Cloudera, Inc. (CLDR) Delisted | 10%+ Owner | 52,327,391 | $15.99 | $836.71M | -$60.28M | 5 | 2020-04-15 |
| HTZ | 10%+ Owner | 45,210,973 | $2.04 | $92.23M | $986.15M | 5 | 2020-03-12 |
| NWL | 10%+ Owner | 43,704,616 | $5.85 | $255.67M | $138.63M | 1 | 2020-03-11 |
| CNDT | 10%+ Owner | 34,712,092 | $1.57 | $54.50M | $207.80M | 3 | 2019-08-13 |
| CZR | 10%+ Owner | 114,250,942 | $29.67 | $3.39B | $0 | 1 | 2019-08-08 |
| ENERGEN CORP (EGN) Delisted | 10%+ Owner | 6,617,066 | — | — | $202.91M | 2 | 2018-08-10 |
| SD | 10%+ Owner | 4,634,801 | $14.63 | $67.81M | $82.19M | 1 | 2017-11-22 |
| LNG | 10%+ Owner | 29,867,977 | $278.34 | $8.31B | $531.14M | 3 | 2015-11-12 |
| HOLOGIC INC (HOLX) Delisted | 10%+ Owner | 28,154,879 | $76.01 | $2.14B | -$971.28M | 1 | 2015-08-04 |
| TTWO | 10%+ Owner | 0 | $215.47 | $0 | -$1.22B | 2 | 2013-11-26 |
| WebMD Health Corp. (WBMD) Delisted | 10%+ Owner | 0 | — | — | -$1.30B | 2 | 2013-10-21 |
| HAIN | 10%+ Owner | 13,029,126 | $0.62 | $8.07M | $55.56M | 2 | 2010-11-16 |
| MENTOR GRAPHICS CORP (MENT) Delisted | 10%+ Owner | — | — | — | $0 | 1 | 2010-07-06 |
| Guaranty Financial Group Inc. (GFG) Delisted | 18,533,544 | — | — | -$1.00M | 1 | 2008-10-02 | |
| BLOCKBUSTER INC (BBI.B) Delisted | 20,560,117 | — | — | $0 | 1 | 2007-11-19 | |
| WCI COMMUNITIES INC (WCI) Delisted | 6,100,023 | — | — | $0 | 1 | 2007-10-03 | |
| LEA | 24,661,028 | $130.82 | $3.23B | $0 | 1 | 2007-08-31 |
Recent Filings
72 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-11-07 | MNRO | Buy (P) | +1,915,977 | $33.31M | EDGAR |
| 2025-11-05 | MNRO | Buy (P) | +1,918,419 | $29.14M | EDGAR |
| 2024-11-20 | SWX | Sell (S) | −4,170,000 | -$320.01M | EDGAR |
| 2023-10-27 | SWX | Other (J) | — | $0 | EDGAR |
| 2023-09-28 | SWX | Buy (P) | +17,808 | $1.10M | EDGAR |
| 2023-05-26 | SWX | Buy (P) | +674,436 | $38.72M | EDGAR |
| 2023-05-24 | SWX | Buy (P) | +268,851 | $15.57M | EDGAR |
| 2023-03-23 | SWX | Buy (P) | +1,575,192 | $94.88M | EDGAR |
| 2023-03-14 | SWX | Buy (P) | +1,617,066 | $96.05M | EDGAR |
| 2023-03-10 | SWX | Buy (P) | +6,998,505 | $420.75M | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.