BLACK DIAMOND THERAPEUTICS I

Ticker: BDTX CUSIP: 09203E105 Class: 0

Casdin Capital, LLC's Holding History (CIK: 0001534261)

Note: Option positions (PUT/CALL) are excluded.

Q4 2020

Shares 289,395 Value ($000) $9,275 Avg Close $32.85 Range $29.01 - $35.99

Q3 2020

Shares 289,395 Value ($000) $8,748 Avg Close $30.44 Range $25.15 - $43.73

Q2 2020

Shares 289,395 Value ($000) $12,201 Avg Close $36.80 Range $20.75 - $46.25

Q1 2020

Shares 289,395 Value ($000) $7,220 Avg Close $30.22 Range $17.63 - $41.79

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	289,395	$9,275	$32.85	$29.01 - $35.99
Q3 2020	289,395	$8,748	$30.44	$25.15 - $43.73
Q2 2020	289,395	$12,201	$36.80	$20.75 - $46.25
Q1 2020	289,395	$7,220	$30.22	$17.63 - $41.79