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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1701541	Black Diamond Therapeutics Inc.	BDTX	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1488668	M. David Epstein	C/O Black Diamond Therapeutics, Inc. 139 Main Street Cambridge MA 02142	See Remarks	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2020-10-01	3,000	$6.42	732,923	No	4	M	Direct
Common Stock	Disposition	2020-10-01	12,000	$30.33	720,923	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Disposition	2020-10-01	3,000	$0.00	3,000	$6.42

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
241,616		2029-08-13	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	23,090	Indirect	See footnote
Common Stock	104,449	Indirect	See footnote
Common Stock	104,449	Indirect	See footnote
Common Stock	16,579	Indirect	See footnote
Common Stock	16,579	Indirect	See footnote

Footnotes

Shares sold pursuant to a pre-established 10b5-1 trading plan effective as of June 12, 2020.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.10 to $30.64 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.
Shares held by wife.
Shares held by David M. Epstein 2019 Trust For Elle. David M. Epstein is the trustee of the David M. Epstein 2019 Trust for Elle and may be deemed to beneficially own these securities.
Shares held by David M. Epstein 2019 Trust For Zoe. David M. Epstein is the trustee of the David M. Epstein 2019 Trust for Zoe and may be deemed to beneficially own these securities.
Shares held by David M. Epstein 2019 Trust For Robert. David M. Epstein is the trustee of the David M. Epstein 2019 Trust for Robert and may be deemed to beneficially own these securities.
Shares held by David M. Epstein 2019 Trust For Shelley. David M. Epstein is the trustee of the David M. Epstein 2019 Trust for Shelley and may be deemed to beneficially own these securities.
25% of the shares subject to this option vested and became exercisable on August 14, 2020, with the remainder vesting in 36 equal monthly installments thereafter.