Howmet Aerospace HWM
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: −$126.65M (4 inflow days, 16 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 31.7% of shares outstanding.
Largest holders
By investor type
Reported short interest has risen from 1.72% to 2.66% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Assenagon Asset Management S.A. | Mutual Fund | 2026/Q3 | +421,300 | 0.2% |
| Vanguard Asset Management, Limited | Mutual Fund | 2026/Q3 | +494,690 | 0.3% |
| Vanguard Global Advisers, LLC | Mutual Fund | 2026/Q3 | +317,428 | 0.3% |
| Citadel Advisors LLC | Hedge Fund | 2026/Q3 | +1,802,267 | 0.7% |
| Jane Street Group, LLC | Private Company | 2026/Q3 | +1,453,930 | 0.7% |
| Jennison Associates LLC | Mutual Fund | 2026/Q3 | +1,153,922 | 0.3% |
| Voya Investment Management LLC | Mutual Fund | 2026/Q3 | +655,045 | 0.5% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +612,866 | 4.7% |
| JPMorgan Chase & Co. | Public Company | 2026/Q3 | +490,377 | 1.0% |
| Polen Capital Management, LLC | Mutual Fund | 2026/Q3 | +457,124 | 0.1% |
| Cartenna Capital LP | Hedge Fund | 2026/Q3 | +450,000 | 0.1% |
| Deutsche Asset & Wealth Management | Mutual Fund | 2026/Q3 | +441,389 | 0.5% |
| Healthcare of Ontario Pension Plan Trust Fund | Government Pension Fund | 2026/Q3 | +439,831 | 0.1% |
| Hudson River Trading LLC | Private Company | 2026/Q3 | +423,876 | 0.1% |
| Stichting Pensioenfonds ABP | Corporate Pension Plan | 2026/Q3 | +381,558 | 0.2% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 1 Oct 2026 | Joseph Cantie | Independent Director | Other Acquisition | +156 | $231.27 | 44,198 |
| 1 Jul 2026 | Joseph Cantie | Independent Director | Other Acquisition | +134 | $270.41 | 44,042 |
| 20 May 2026 | James Albaugh | Lead Independent Director | Other Acquisition | +731 | – | 49,442 |
| 20 May 2026 | Jody Miller | Independent Director | Other Acquisition | +731 | – | 30,605 |
| 20 May 2026 | Robert Leduc | Independent Director | Other Acquisition | +731 | – | 35,824 |
| 20 May 2026 | Ulrich Schmidt | Independent Director | Other Acquisition | +731 | – | 53,228 |
| 20 May 2026 | Sharon Barner | Independent Director | Other Acquisition | +731 | – | 16,582 |
| 20 May 2026 | Joseph Cantie | Independent Director | Other Acquisition | +731 | – | 43,908 |
| 20 May 2026 | Amy Alving | Independent Director | Other Acquisition | +731 | – | 57,820 |
| 20 May 2026 | Gunner Smith | Independent Director | Other Acquisition | +731 | – | 5,844 |
| 10 May 2026 | Neil Marchuk | Executive Vice President | Open Market Disposition | -41,932 | $269.50 | 13,518 |
| 14 Apr 2026 | Jonathan Arena | Executive VP, Chief Legal and Compliance Officer & Secretary | Other Acquisition | +3,544 | – | – |
| 1 Apr 2026 | Joseph Cantie | Independent Director | Other Acquisition | +155 | $232.68 | 43,177 |
| 25 Feb 2026 | Barbara Shultz | Vice President | Open Market Disposition | -1,000 | $260.01 | 23,874 |
| 17 Feb 2026 | Neil Marchuk | Executive Vice President | Open Market Disposition | -45,150 | $251.70 | 55,421 |
| 17 Feb 2026 | Kenneth Giacobbe | Former Chief Financial Officer | Intent to Sell (Form 144) | -37,471 | $252.39 | – |
| 16 Feb 2026 | John Plant | Executive Chairperson | Other Acquisition | +22,333 | – | 408,106 |
| 16 Feb 2026 | Michael Chanatry | VP & Chief Commercial Officer | Other Acquisition | +2,693 | – | 168,502 |
| 16 Feb 2026 | Neil Marchuk | Executive Vice President | Other Acquisition | +3,881 | – | 51,597 |
| 16 Feb 2026 | Kenneth Giacobbe | Former Chief Financial Officer | Intent to Sell (Form 144) | -108,987 | $251.45 | – |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 10,598,344 | 2.7% | 4.0 |
| 30 Sep 2026 | 10,155,412 | 2.5% | 3.8 |
| 15 Sep 2026 | 9,867,638 | 2.5% | 2.1 |
| 31 Aug 2026 | 8,499,431 | 2.1% | 3.1 |
| 14 Aug 2026 | 7,387,429 | 1.9% | 3.5 |
| 31 Jul 2026 | 6,892,544 | 1.7% | 3.3 |
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