MarketPeel
Insider Trading Intelligence
MO

Michael Overdorf

ANNX
EVP & CHIEF BUSINESS OFFICER · ANNEXON, INC. · CIK 0001818522
FILING MIX · LIFETIME56%/44%
BUYS
14
SELLS
11
TOTAL VALUE
$118.3K
COMPANIES
1
ACTIVE SINCE
Jul 2020
HOLDINGS NOW
182,625
AVG SELL PX
$4.52
TRADE KIND
SHOWING 25 / 25
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
11 backtested trades · 8 horizons · 11 pending
Forward-return performance of every backtestable P/S trade by Michael Overdorf, 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
7d11+72.73%-2.89%-0.57%-2.33%-3.58%
14d11+54.55%-4.13%-1.37%-2.76%-2.85%
30d11+72.73%-7.53%-2.34%-5.19%-3.60%
60d11+63.64%-12.21%-0.71%-11.50%-12.50%
90d11+72.73%-9.23%+2.32%-12.29%-12.38%
180d11(2 pending)+55.56%-0.52%+8.12%-8.64%-18.48%
1y11(3 pending)+62.50%+0.67%+19.59%-18.91%-37.87%
2y11(6 pending)+100.00%-26.38%+45.45%-71.83%-70.11%
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
ANNX · 182,625 shares · as of Mar 2, 2026
068,144136,288204,431272,575202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 14 buys / 11 sellsCOVERAGE · 23 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ANNX
ANNEXON, INC.
SALE
EVP & CHIEF BUSINESS OFFICER
4,339$5.42$23.5K182,625Mar 2, 2026Mar 4, 2026View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
62,500186,964Feb 19, 2026Feb 23, 2026View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
250,000250,000Feb 19, 2026Feb 23, 2026View →
ANNX
ANNEXON, INC.
SALE
EVP & CHIEF BUSINESS OFFICER
6,225$5.10$31.7K124,464Feb 18, 2026Feb 20, 2026View →
ANNX
ANNEXON, INC.
SALE
EVP & CHIEF BUSINESS OFFICER
853$2.61$2.2K130,689Jul 14, 2025Jul 16, 2025View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
272,575272,575Feb 27, 2025Mar 3, 2025View →
ANNX
ANNEXON, INC.
SALE
EVP & CHIEF BUSINESS OFFICER
6,618$2.95$19.5K86,579Feb 18, 2025Feb 20, 2025View →
ANNX
ANNEXON, INC.
SALE
EVP & CHIEF BUSINESS OFFICER
1,425$2.99$4.3K93,197Feb 13, 2025Feb 18, 2025View →
ANNX
ANNEXON, INC.
SALE
EVP & CHIEF BUSINESS OFFICER
784$6.02$4.7K94,622Jul 15, 2024Jul 17, 2024View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
44,963131,542Feb 27, 2024Mar 3, 2025View →
ANNX
ANNEXON, INC.
SALE
EVP & CHIEF BUSINESS OFFICER
1,951$5.48$10.7K85,641Feb 20, 2024Feb 21, 2024View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
160,000160,000Feb 16, 2024Feb 21, 2024View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
39,00087,592Feb 16, 2024Feb 21, 2024View →
ANNX
ANNEXON, INC.
SALE
EVP & CHIEF BUSINESS OFFICER
1,349$5.53$7.5K48,592Feb 12, 2024Feb 14, 2024View →
ANNX
ANNEXON, INC.
SALE
EVP & Chief Business Officer
978$3.84$3.8K45,802Jul 11, 2023Jan 23, 2024View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
18,97546,780Feb 16, 2023Feb 21, 2023View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
77,05077,050Feb 16, 2023Feb 21, 2023View →
ANNX
ANNEXON, INC.
SALE
EVP & Chief Business Officer
144$6.30$90727,805Feb 14, 2023Feb 15, 2023View →
ANNX
ANNEXON, INC.
SALE
EVP & Chief Business Officer
1,501$6.30$9.5K27,949Feb 13, 2023Feb 15, 2023View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
75,00075,000Jul 11, 2022Jul 11, 2022View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
9,37521,875Jul 11, 2022Jul 11, 2022View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
100,000100,000Feb 11, 2022Feb 15, 2022View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
12,50012,500Feb 11, 2022Feb 15, 2022View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
115,000115,000Feb 25, 2021Mar 1, 2021View →
ANNX
ANNEXON, INC.
PURCHASEGRANT
Stock grant
242,905242,905Jul 23, 2020Jul 23, 2020View →
Other insiders · ANNX
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About this filer
CIK 0001818522
ROLE
EVP & CHIEF BUSINESS OFFICER
PRIMARY
ANNX
COMPANIES
1
ACTIVE SINCE
Jul 2020
MARKETPEEL · /INSIDER/0001818522DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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