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GM

Gwendolyn G. Mizell

AEE
INSIDER · AMEREN CORP · CIK 0001849779
FILING MIX · LIFETIME65%/35%
BUYS
17
SELLS
9
TOTAL VALUE
$1.73M
COMPANIES
2
ACTIVE SINCE
Apr 2021
HOLDINGS NOW
19,058
AVG SELL PX
$102.99
TRADE KIND
SHOWING 26 / 26
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 7 pending
Forward-return performance of every backtestable P/S trade by Gwendolyn G. Mizell, 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
7d3+66.67%-0.70%+0.65%-1.34%-1.95%—
14d3+66.67%-0.31%+0.78%-1.09%-1.59%—
30d3+66.67%+0.04%+1.31%-1.26%-0.13%—
60d3+0.00%+2.17%+4.72%-2.56%-2.03%—
90d3+33.33%-0.34%+5.23%-5.57%-4.28%—
180d3(1 pending)+0.00%+9.61%+6.49%+3.13%+3.13%—
1y3(3 pending)——————
2y3(3 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
AEE · 6,324 shares · as of Feb 27, 2026
02,9885,9778,96511,953202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 17 buys / 9 sellsCOVERAGE · 21 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ROCK
GIBRALTAR INDUSTRIES, INC.
PURCHASEGRANT
Stock grant
3,059$37.59$115.0K12,734May 7, 2026May 8, 2026 ↗View →
AEE
AMEREN CORP
SALE
943$113.28$106.8K6,324Feb 27, 2026Mar 3, 2026 ↗View →
AEE
AMEREN CORP
SALE
3,548$110.90$393.5K7,267Feb 17, 2026Feb 19, 2026 ↗View →
AEE
AMEREN CORP
PURCHASEGRANT
Stock grant
865——8,494Feb 5, 2026Feb 9, 2026 ↗View →
AEE
AMEREN CORP
PURCHASEGRANT
Stock grant
2,276——10,815Feb 5, 2026Feb 9, 2026 ↗View →
AEE
AMEREN CORP
SALE
1,500$99.50$149.3K7,629Sep 3, 2025Sep 4, 2025 ↗View →
AEE
AMEREN CORP
SALE
1,000$101.79$101.8K9,129Aug 22, 2025Aug 26, 2025 ↗View →
AEE
AMEREN CORP
SALE
1,126$97.40$109.7K10,095May 12, 2025May 14, 2025 ↗View →
ROCK
GIBRALTAR INDUSTRIES, INC.
PURCHASEGRANT
Stock grant
2,172$52.95$115.0K9,675Apr 30, 2025May 2, 2025 ↗View →
AEE
AMEREN CORP
SALE
796$101.56$80.8K11,161Feb 28, 2025Mar 4, 2025 ↗View →
AEE
AMEREN CORP
PURCHASEGRANT
Stock grant
927——9,972Feb 6, 2025Feb 10, 2025 ↗View →
AEE
AMEREN CORP
PURCHASEGRANT
Stock grant
1,920——11,953Feb 6, 2025Feb 10, 2025 ↗View →
AEE
AMEREN CORP
SALEGRANT
Gift
1,469——9,045Dec 11, 2024Dec 13, 2024 ↗View →
ROCK
GIBRALTAR INDUSTRIES, INC.
PURCHASEGRANT
Stock grant
1,670$68.86$115.0K7,503May 1, 2024May 2, 2024 ↗View →
AEE
AMEREN CORP
SALE
363$71.19$25.8K10,300Feb 29, 2024Mar 4, 2024 ↗View →
AEE
AMEREN CORP
PURCHASEGRANT
Stock grant
790——10,660Feb 8, 2024Feb 12, 2024 ↗View →
AEE
AMEREN CORP
PURCHASEGRANT
Stock grant
1,132——9,647Feb 8, 2024Feb 12, 2024 ↗View →
ROCK
GIBRALTAR INDUSTRIES, INC.
PURCHASEGRANT
Stock grant
2,117$54.33$115.0K5,833May 3, 2023May 4, 2023 ↗View →
AEE
AMEREN CORP
SALE
611$82.71$50.5K8,515Feb 28, 2023Mar 2, 2023 ↗View →
AEE
AMEREN CORP
PURCHASEGRANT
Stock grant
880——7,392Feb 9, 2023Feb 13, 2023 ↗View →
AEE
AMEREN CORP
PURCHASEGRANT
Stock grant
1,688——9,124Feb 9, 2023Feb 13, 2023 ↗View →
ROCK
GIBRALTAR INDUSTRIES, INC.
PURCHASEGRANT
Stock grant
2,460$42.69$105.0K3,716May 6, 2022May 9, 2022 ↗View →
ROCK
GIBRALTAR INDUSTRIES, INC.
PURCHASEGRANT
Stock grant
149.87$81.32$12.2K533.637Oct 1, 2021Oct 1, 2021 ↗View →
ROCK
GIBRALTAR INDUSTRIES, INC.
PURCHASEGRANT
Stock grant
162.03$79.50$12.9K383.767Jul 9, 2021Jul 9, 2021 ↗View →
ROCK
GIBRALTAR INDUSTRIES, INC.
PURCHASEGRANT
Stock grant
1,256$83.58$105.0K1,256May 5, 2021May 7, 2021 ↗View →
ROCK
GIBRALTAR INDUSTRIES, INC.
PURCHASEGRANT
Stock grant
221.737$71.03$15.7K221.737Apr 2, 2021Apr 16, 2021 ↗View →
Other insiders · AEE
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About this filer
CIK 0001849779
ROLE
Insider
PRIMARY
AEE
COMPANIES
2
ACTIVE SINCE
Apr 2021
MARKETPEEL · /INSIDER/0001849779DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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