CRISPR THERAPEUTICS AG

Ticker: CRSP CUSIP: H17182108 Class: NAMEN AKT

Yorktown Management & Research Co Inc's Holding History (CIK: 0001313559)

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

Q4 2021

Shares 4,800 Value ($000) $364 Avg Close $87.36 Range $67.15 - $112.39

Q3 2021

Shares 4,800 Value ($000) $537 Avg Close $125.59 Range $109.63 - $163.00

Q2 2021

Shares 4,800 Value ($000) $777 Avg Close $121.62 Range $95.11 - $169.76

Q1 2021

Shares 8,400 Value ($000) $1,024 Avg Close $151.00 Range $100.00 - $220.20

Q4 2020

Shares 8,600 Value ($000) $1,317 Avg Close $118.20 Range $79.31 - $181.42

Q3 2020

Shares 8,600 Value ($000) $719 Avg Close $88.70 Range $74.00 - $105.12

Q2 2020

Shares 7,200 Value ($000) $529 Avg Close $58.47 Range $38.10 - $79.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	4,800	$364	$87.36	$67.15 - $112.39
Q3 2021	4,800	$537	$125.59	$109.63 - $163.00
Q2 2021	4,800	$777	$121.62	$95.11 - $169.76
Q1 2021	8,400	$1,024	$151.00	$100.00 - $220.20
Q4 2020	8,600	$1,317	$118.20	$79.31 - $181.42
Q3 2020	8,600	$719	$88.70	$74.00 - $105.12
Q2 2020	7,200	$529	$58.47	$38.10 - $79.92