MarketPeel
Insider Trading Intelligence
BG

Brian L. Glassberg

GATX
EVP, GENERAL COUNSEL & SECY. · GATX CORP · CIK 0001956917
FILING MIX · LIFETIME46%/54%
BUYS
6
SELLS
7
TOTAL VALUE
$899.5K
COMPANIES
1
ACTIVE SINCE
Jan 2023
HOLDINGS NOW
7,100
AVG SELL PX
$183.95
TRADE KIND
SHOWING 13 / 13
Trades · vs SPY
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Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 6 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Brian L. Glassberg, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d2+100.00%-7.23%-0.50%-6.73%-6.73%
14d2+100.00%-9.89%-2.47%-7.42%-7.42%
30d2+100.00%-14.81%-4.94%-9.87%-9.87%
60d2+0.00%+0.79%+2.13%-1.33%-1.33%
90d2+100.00%-12.67%
180d2(2 pending)
1y2(2 pending)
2y2(2 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
GATX · 7,100 shares · as of Feb 23, 2026
02,2604,5216,7819,041202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 6 buys / 7 sellsCOVERAGE · 13 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GATX
GATX CORP
PURCHASEGRANT
Stock grant
7,1007,100Feb 23, 2026Feb 25, 2026View →
GATX
GATX CORP
SALE
EVP, General Counsel & Secy.
874$198.61$173.6K7,041Feb 20, 2026Feb 24, 2026View →
GATX
GATX CORP
SALE
EVP, General Counsel & Secy.
1,126$198.04$223.0K7,915Feb 20, 2026Feb 24, 2026View →
GATX
GATX CORP
SALE
EVP, General Counsel & Secy.
2,0000Feb 20, 2026Feb 24, 2026View →
GATX
GATX CORP
PURCHASE
EVP, General Counsel & Secy.
2,000$77.07$154.1K9,041Feb 20, 2026Feb 24, 2026View →
GATX
GATX CORP
PURCHASEGRANT
Stock grant
2,7908,277Feb 18, 2026Feb 20, 2026View →
GATX
GATX CORP
SALE
EVP, General Counsel & Secy.
1,236$192.83$238.3K7,041Feb 18, 2026Feb 20, 2026View →
GATX
GATX CORP
PURCHASEGRANT
Stock grant
6,2006,200Jan 30, 2025Jan 31, 2025View →
GATX
GATX CORP
SALE
EVP, General Counsel & Secy.
258$165.15$42.6K5,406Jan 28, 2025Jan 30, 2025View →
GATX
GATX CORP
SALE
EVP, General Counsel & Secy.
343$126.80$43.5K5,578Jan 29, 2024Jan 31, 2024View →
GATX
GATX CORP
PURCHASEGRANT
Stock grant
6,1006,100Jan 25, 2024Jan 29, 2024View →
GATX
GATX CORP
SALE
EVP, General Counsel & Secy.
215$113.27$24.4K5,833Jan 31, 2023Feb 2, 2023View →
GATX
GATX CORP
PURCHASEGRANT
Stock grant
5,6005,600Jan 26, 2023Jan 30, 2023View →
Other insiders · GATX
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About this filer
CIK 0001956917
ROLE
EVP, General Counsel & Secy.
PRIMARY
GATX
COMPANIES
1
ACTIVE SINCE
Jan 2023
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