MarketPeel
Insider Trading Intelligence
MB

Mark C. Biderman

ARI
DIRECTOR · APOLLO COMMERCIAL REAL ESTATE FINANCE, INC. · CIK 0001263606
FILING MIX · LIFETIME58%/42%
BUYS
7
SELLS
5
TOTAL VALUE
$583.0K
COMPANIES
1
ACTIVE SINCE
Apr 2020
HOLDINGS NOW
70,374
AVG SELL PX
$11.20
TRADE KIND
SHOWING 12 / 12
Trades · vs SPY
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Performance · forward returns vs SPY
5 backtested trades · 8 horizons · 1 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Mark C. Biderman, 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
7d5+80.00%-0.82%+0.17%-0.99%-0.64%
14d5+0.00%+1.72%+2.32%-0.60%-0.97%
30d5+40.00%-4.54%-0.28%-4.26%-3.33%
60d5+60.00%-0.85%+3.10%-3.95%-7.88%
90d5+0.00%+5.94%+7.54%-1.60%+0.83%
180d5+20.00%+1.46%+12.58%-11.13%-13.98%
1y5+80.00%-3.32%+14.13%-17.45%-18.84%
2y5(1 pending)+50.00%-6.31%+31.92%-38.23%-39.98%
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
ARI · 70,374 shares · as of Apr 1, 2026
019,12138,24357,36476,485202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 7 buys / 5 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
PURCHASEGRANT
Stock grant
9,58770,374Apr 1, 2026Apr 3, 2026View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
SALE
10,000$9.48$94.8K60,787Apr 29, 2025May 1, 2025View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
PURCHASEGRANT
Stock grant
10,16270,787Apr 1, 2025Apr 3, 2025View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
SALE
15,000$10.00$149.9K60,625May 1, 2024May 2, 2024View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
PURCHASEGRANT
Stock grant
9,14075,625Apr 1, 2024Apr 3, 2024View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
SALE
10,000$10.60$106.0K66,485Sep 6, 2023Sep 8, 2023View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
PURCHASEGRANT
Stock grant
10,82276,485Apr 3, 2023Apr 5, 2023View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
SALE
10,000$12.68$126.8K65,663May 17, 2022May 19, 2022View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
PURCHASEGRANT
Stock grant
7,06275,663Apr 1, 2022Apr 5, 2022View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
SALE
7,050$14.96$105.5K68,601Apr 26, 2021Apr 28, 2021View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
PURCHASEGRANT
Stock grant
7,03775,651Apr 1, 2021Apr 5, 2021View →
ARI
APOLLO COMMERCIAL REAL ESTATE FINANCE, INC.
PURCHASEGRANT
Stock grant
16,44768,614Apr 1, 2020Apr 3, 2020View →
Other insiders · ARI
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About this filer
CIK 0001263606
ROLE
Director
PRIMARY
ARI
COMPANIES
1
ACTIVE SINCE
Apr 2020
MARKETPEEL · /INSIDER/0001263606DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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