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Insider · CIK 0001136562

John C Plant

ceochairofficerdirector

Files at HWM (Howmet Aerospace Inc.), MAS (MASCO CORP /DE/), JBL (JABIL INC). First filing Jan 27, 2025, latest May 12, 2025.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 2
$0 bought, $134M sold

Where the trades landed

Last year at the 2 companies this insider has traded most, with each buy and sell on the bar it happened.

HWM: Howmet Aerospace Inc.

HWMOct 9, 2026 · close 225.26

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

JBL: JABIL INC

JBLOct 9, 2026 · close 306.28

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
85Strong
HWMsell 3
Howmet Aerospace Inc.
$126M
800,000 shares
-67%+67% from low-0% from high
75Notable
JBLsell 3
JABIL INC
$8.6M
50,000 shares
-89%-

Transactions

Every row this insider has filed, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Feb 17, 2026HWM
Howmet Aerospace Inc.
AGrant or award
Common Stock
+22,333$0.00$02,471,367Feb 18, 2026
Jul 1, 2025HWM
Howmet Aerospace Inc.
AGrant or award
Common Stock
+255,363$0.00$02,449,034Jul 2, 2025
May 9, 2025MAS
MASCO CORP /DE/
AGrant or award
Common Stock
+2,900$0.00$047,924May 13, 2025
May 12, 2025HWM
Howmet Aerospace Inc.
SOpen-market sale
Common Stockindirect: By Trust
-650,000$156.96$102M551,186May 12, 2025
May 12, 2025HWM
Howmet Aerospace Inc.
SOpen-market sale
Common Stockindirect: By Remainder Trust
-150,000$156.96$24M236,544May 12, 2025
Feb 18, 2025HWM
Howmet Aerospace Inc.
AGrant or award
Common Stock
+41,268$0.00$02,193,671Feb 20, 2025
Jan 23, 2025JBL
JABIL INC
AGrant or award
Common Stock
+1,300$0.00$055,900Jan 27, 2025
Jan 24, 2025JBL
JABIL INC
SOpen-market sale
Common Stock
-3,800$173.10$658k52,100Jan 27, 2025
Jan 24, 2025JBL
JABIL INC
SOpen-market sale
Common Stock
-46,200$172.50$8.0M5,900Jan 27, 2025

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

John C Plant: insider trades and track record | InsiderTell