Samuel C. Blackman

CIK 1863676 · HEAD OF R&D · last filed 2024-12-12

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$0

Companies

1

Total Filings

38

Lifetime Open-Market Net

-$6.62M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
Day One Biopharmaceuticals, Inc. (DAWN) Delisted HEAD OF R&D 2,034,015 $21.53 $43.79M -$6.62M 38 2024-12-12

Recent Filings · Page 3 of 4

38 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2023-05-17 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Mixed +1,932 -$9.1K EDGAR
2023-03-14 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Sell (S) −10,000 -$180.5K EDGAR
2023-02-17 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Mixed +1,950 -$13.2K EDGAR
2023-02-13 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Sell (S) −10,000 -$200.7K EDGAR
2023-01-19 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Grant (A) $0 EDGAR
2023-01-11 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Sell (S) −10,000 -$228.6K EDGAR
2022-12-05 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Sell (S) −10,000 -$214.5K EDGAR
2022-11-17 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Mixed +810 -$8.1K EDGAR
2022-11-03 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Sell (S) −10,000 -$200.1K EDGAR
2022-10-05 Day One Biopharmaceuticals, Inc. (DAWN) Delisted Sell (S) −10,000 -$199.9K EDGAR
Showing 2130 of 38
Page 3 of 4
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.