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Insider · CIK 0002026106

Michael J Donfris

cfoofficer

Files at GBX (GREENBRIER COMPANIES INC). First filing -, latest -.

Michael J Donfris files SEC Form 4 as CFO at GBX (GREENBRIER COMPANIES INC). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.

A track record needs three past buys with six months of prices behind them; Michael J Donfris has 0, so none is measured yet.

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 / 0
$0 bought, $0 sold

Signals

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

No scored open-market trades yet.

Transactions

Every row this insider has filed, 7 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Jun 17, 2026GBX
GREENBRIER COMPANIES INC
FTax withholding
Common Stock
-351$49.33$17k25,596Jun 18, 2026
Oct 22, 2025GBX
GREENBRIER COMPANIES INC
AGrant or award
Common Stock
+10,262$0.00$025,947Oct 24, 2025
Oct 17, 2025GBX
GREENBRIER COMPANIES INC
FTax withholding
Common Stock
-724$45.47$33k16,308Oct 20, 2025
Oct 18, 2025GBX
GREENBRIER COMPANIES INC
FTax withholding
Common Stock
-623$45.27$28k15,685Oct 20, 2025
Jun 17, 2025GBX
GREENBRIER COMPANIES INC
FTax withholding
Common Stock
-351$45.68$16k17,032Jun 18, 2025
Oct 17, 2024GBX
GREENBRIER COMPANIES INC
AGrant or award
Common Stock
+8,912$0.00$017,539Oct 21, 2024
Oct 18, 2024GBX
GREENBRIER COMPANIES INC
FTax withholding
Common Stock
-156$52.64$8,21217,383Oct 21, 2024

Questions about Michael J Donfris

Answered from the filings on this page, as of the latest one.

Is Michael J Donfris buying or selling?

Michael J Donfris has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.

How did Michael J Donfris's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Michael J Donfris has 0.

Where does Michael J Donfris file Form 4?

Michael J Donfris has filed Form 4 at GBX (GREENBRIER COMPANIES INC) as SVP, CFO. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

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.

Michael J Donfris: insider trades and track record | InsiderTell