EDITAS MEDICINE INC

Ticker: EDIT CUSIP: 28106W103 Class: Stock

Patten Group, Inc.'s Holding History (CIK: 0001633207)

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

Q4 2018

Shares 525 Value ($000) $12 Avg Close $27.21 Range $17.80 - $32.46

Q3 2018

Shares 720 Value ($000) $23 Avg Close $32.31 Range $26.00 - $38.77

Q2 2018

Shares 1,095 Value ($000) $39 Avg Close $35.41 Range $31.12 - $41.43

Q1 2018

Shares 1,095 Value ($000) $36 Avg Close $35.63 Range $27.00 - $45.02

Q4 2017

Shares 1,215 Value ($000) $37 Avg Close $25.18 Range $20.29 - $32.85

Q3 2017

Shares 605 Value ($000) $15 Avg Close $19.03 Range $15.28 - $24.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	525	$12	$27.21	$17.80 - $32.46
Q3 2018	720	$23	$32.31	$26.00 - $38.77
Q2 2018	1,095	$39	$35.41	$31.12 - $41.43
Q1 2018	1,095	$36	$35.63	$27.00 - $45.02
Q4 2017	1,215	$37	$25.18	$20.29 - $32.85
Q3 2017	605	$15	$19.03	$15.28 - $24.50