Comparable stake leader
BlackRock, Inc.
SEC ownership of Howmet Aerospace Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000004281.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
21 May 2026
- Public ticker
- HWM on NYSE
- Parsed ownership sources
- 13F, 13D/G, and 3/4/5
- Largest SEC-reported holder
- BlackRock, Inc.
- Latest 13D/G holder
- BlackRock, Inc.
- Latest parsed ownership date
- 21 May 2026
- Issuer CIK
- 0000004281
- Issuer location
- Pittsburgh, PA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Howmet Aerospace Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
21 May 2026
13F
13D/G
3/4/5
Lead comparable stake: 8.9%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 8.9%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
8.9%
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
JPMORGAN CHASE & CO
5.1%
John C. Plant
0.8%
Ken Giacobbe
0.04%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
8.9%
from 13D/G
|
$11,053,639,620
47,963,376 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.5%
|
$6,909,825,256
29,982,753 shares
|
$0 | 31 Mar 2026 |
| JPMORGAN CHASE & CO |
13D/G
13F
Company
|
5.1%
|
$5,249,274,332
20,775,218 shares
|
-$2,572,201,572 | 31 Mar 2026 |
| John C. Plant |
3/4/5
Executive Chairman & CEO
|
0.8%
|
$700,347,353
3,259,097 shares
|
— | 17 Feb 2026 |
| Ken Giacobbe |
3/4/5
EVP and CFO
|
0.04%
|
$28,257,985
183,254 shares
|
— | 05 May 2025 |
| Michael Niem Chanatry |
3/4/5
Vice President
|
0.04%
|
$36,209,394
168,502 shares
|
— | 15 Feb 2026 |
| Neil Edward Marchuk |
3/4/5
EVP, CAO
|
0.02%
|
$17,547,886
65,115 shares
|
-$22,664,962 | 11 May 2026 |
| Ulrich Schmidt |
3/4/5
Director
|
0.02%
|
$14,340,180
63,894 shares
|
— | 21 May 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$25,290,041.
Buys
$0
Insiders: 0
Sells
$25,290,041
Insiders: 3
Net
-$25,290,041
Shares: -101,184
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 101,184
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 41,932 | $0 | $11,300,536 | -$11,300,536 |
| 3-6 | 0 | 46,150 | $0 | $11,624,432 | -$11,624,432 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 13,102 | $0 | $2,365,073 | -$2,365,073 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 20 reporting-owner rows connected to Howmet Aerospace Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
20
Largest Forms 3/4/5 holder
John C. Plant
Net 12M change
-$25,290,040
Latest report
21 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| John C. Plant | Executive Chairman & CEO | $700,347,353 | Mixed | 17 Feb 2026 | ||
| Michael Niem Chanatry | Vice President | $36,209,394 | Mixed | 15 Feb 2026 | ||
| Ken Giacobbe | EVP and CFO | $28,257,985 | Mixed | 05 May 2025 | ||
| Neil Edward Marchuk | Evp, Cao | $17,547,886 | -$22,664,962 | -56% | Mixed | 11 May 2026 |
| Ulrich Schmidt | Director | $14,340,180 | Mixed | 21 May 2026 | ||
| James F. Albaugh | Director | $13,699,003 | Median | 21 May 2026 | ||
| Amy E. Alving | Director | $13,325,197 | Median | 21 May 2026 | ||
| Lola Felice Lin | EVP, CL&CO and Secretary | $11,399,358 | -$2,365,073 | -17% | Filing P/S | 05 Aug 2025 |
| Joseph S. Cantie | Director | $10,128,256 | Median | 21 May 2026 | ||
| Robert F. Leduc | Director | $8,255,999 | Median | 21 May 2026 | ||
| Jody Miller | Director | $7,053,228 | Median | 21 May 2026 | ||
| Barbara Lou Shultz | Vice President and Controller | $6,207,359 | -$260,005 | -4% | Filing P/S | 26 Feb 2026 |
| W. Paul Myron | Vice President and Controller | $5,832,301 | Mixed | 16 May 2021 | ||
| David J. Miller | Director | $4,169,981 | Mixed | 24 May 2024 | ||
| Sharon R. Barner | Director | $3,821,487 | Median | 21 May 2026 | ||
| Gunner Smith | Director | $1,346,808 | Median | 21 May 2026 | ||
| Nicole W. Piasecki | Director | $1,048,711 | Mixed | 27 May 2022 | ||
| Jonathan A. Arena | EVP, CL&CO and Secretary | $816,750 | Median | 15 Apr 2026 | ||
| Patrick Winterlich | Evp, Cfo | $680,771 | Mixed | 17 Feb 2026 | ||
| Tolga I. Oal | Co-Chief Executive Officer, Director | $591,108 | Mixed | 30 Sep 2021 |
Recent insider transactions for Howmet Aerospace Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Gunner Smith | HWM | Common Stock | Award | 14.3% | 731 | 5,844 | 21 May 2026 | Direct | ||
| Ulrich Schmidt | HWM | Common Stock | Award | 1.39% | 731 | 53,228 | 21 May 2026 | Direct | ||
| Jody Miller | HWM | Common Stock | Award | 2.45% | 731 | 30,605 | 21 May 2026 | Direct | ||
| Robert F. Leduc | HWM | Common Stock | Award | 2.08% | 731 | 35,824 | 21 May 2026 | Direct | ||
| Joseph S. Cantie | HWM | Common Stock | Award | 1.69% | 731 | 43,948 | 21 May 2026 | Direct | ||
| Sharon R. Barner | HWM | Common Stock | Award | 4.61% | 731 | 16,582 | 21 May 2026 | Direct | ||
| Amy E. Alving | HWM | Common Stock | Award | 1.28% | 731 | 57,820 | 21 May 2026 | Direct | ||
| James F. Albaugh | HWM | Common Stock | Award | 1.25% | 731 | 59,442 | 21 May 2026 | Direct | ||
| Neil Edward Marchuk | HWM | Common Stock | Sale | -39.2% | $11,300,536 | $269.50 | -41,932 | 65,105 | 11 May 2026 | Direct |
| Jonathan A. Arena | HWM | Common Stock | Award | 3,544 | 3,544 | 15 Apr 2026 | Direct | |||
| Joseph S. Cantie | HWM | Common Stock | Award | 0.36% | 155 | 43,217 | 02 Apr 2026 | Direct | ||
| Barbara Lou Shultz | HWM | Common Stock | Sale | -4.02% | $260,005 | $260.00 | -1,000 | 23,874 | 26 Feb 2026 | Direct |
| Neil Edward Marchuk | HWM | Common Stock | Sale | -29.7% | $11,364,427 | $251.70 | -45,150 | 107,008 | 18 Feb 2026 | Direct |
| John C. Plant | HWM | Common Stock | Award | 0.91% | 22,333 | 2,471,367 | 17 Feb 2026 | Direct | ||
| Patrick Winterlich | HWM | Common Stock | Award | 3,168 | 3,168 | 17 Feb 2026 | Direct | |||
| Barbara Lou Shultz | HWM | Common Stock | Award | 1.83% | 446 | 24,874 | 17 Feb 2026 | Direct | ||
| Neil Edward Marchuk | HWM | Common Stock | Award | 2.62% | 3,881 | 152,158 | 17 Feb 2026 | Direct | ||
| Michael Niem Chanatry | HWM | Common Stock | Award | 1.62% | 2,693 | 168,502 | 17 Feb 2026 | Direct | ||
| Barbara Lou Shultz | HWM | Common Stock | Tax liability | -9.93% | -2,692 | 24,428 | 16 Feb 2026 | Direct | ||
| Neil Edward Marchuk | HWM | Common Stock | Tax liability | -16.2% | -28,651 | 148,277 | 16 Feb 2026 | Direct | ||
| Michael Niem Chanatry | HWM | Common Stock | Tax liability | -5.46% | -9,579 | 165,809 | 16 Feb 2026 | Direct | ||
| Michael Niem Chanatry | HWM | Common Stock | Tax liability | -5.77% | -10,741 | 175,388 | 15 Feb 2026 | Direct | ||
| Michael Niem Chanatry | HWM | Common Stock | Award | 9.9% | 16,764 | 186,129 | 03 Feb 2026 | Direct | ||
| Barbara Lou Shultz | HWM | Common Stock | Award | 17.7% | 4,076 | 27,120 | 03 Feb 2026 | Direct | ||
| Neil Edward Marchuk | HWM | Common Stock | Award | 39.7% | 50,292 | 176,928 | 03 Feb 2026 | Direct | ||
| Robert F. Leduc | HWM | Common Stock | Award | 0.08% | 28 | 35,093 | 05 Jan 2026 | Direct | ||
| Jody Miller | HWM | Common Stock | Award | 0.53% | 158 | 29,874 | 05 Jan 2026 | Direct | ||
| Joseph S. Cantie | HWM | Common Stock | Award | 0.37% | 158 | 43,062 | 05 Jan 2026 | Direct | ||
| Neil Edward Marchuk | HWM | Common Stock | Tax liability | -3.98% | -5,255 | 126,636 | 31 Dec 2025 | Direct | ||
| Michael Niem Chanatry | HWM | Phantom Stock Units | Disposed to Issuer | -100% | -886 | 0 | 01 Dec 2025 | Direct | ||
| Jody Miller | HWM | Common Stock | Award | 0.6% | 176 | 29,716 | 02 Oct 2025 | Direct | ||
| Robert F. Leduc | HWM | Common Stock | Award | 0.09% | 31 | 35,065 | 02 Oct 2025 | Direct | ||
| Joseph S. Cantie | HWM | Common Stock | Award | 0.41% | 176 | 42,904 | 02 Oct 2025 | Direct | ||
| Lola Felice Lin | HWM | Common Stock | Sale | -17.2% | $2,365,073 | $180.51 | -13,102 | 63,150 | 05 Aug 2025 | Direct |
| Jody Miller | HWM | Common Stock | Award | 0.65% | 191 | 29,540 | 02 Jul 2025 | Direct | ||
| Robert F. Leduc | HWM | Common Stock | Award | 0.1% | 34 | 35,034 | 02 Jul 2025 | Direct | ||
| Joseph S. Cantie | HWM | Common Stock | Award | 0.45% | 191 | 42,728 | 02 Jul 2025 | Direct | ||
| John C. Plant | HWM | Common Stock | Award | 11.6% | 255,363 | 2,449,034 | 01 Jul 2025 | Direct |
* marks a reported price that did not pass the local price check.