REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

Atika Capital Management LLC's Holding History (CIK: 0001599731)

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

Q3 2023
Shares 92,744 Value ($000) $14,747 Avg Close $163.47 Range $134.64 - $181.26
Q2 2023
Shares 92,744 Value ($000) $13,120 Avg Close $160.35 Range $135.37 - $182.42
Q1 2023
Shares 92,761 Value ($000) $15,617 Avg Close $178.42 Range $147.53 - $200.98
Q4 2022
Shares 92,761 Value ($000) $15,705 Avg Close $181.39 Range $158.58 - $225.62
Q3 2022
Shares 84,000 Value ($000) $15,717 Avg Close $210.87 Range $157.33 - $262.26
Q2 2022
Shares 84,000 Value ($000) $13,642 Avg Close $158.16 Range $137.21 - $190.59
Q1 2022
Shares 81,000 Value ($000) $15,236 Avg Close $189.96 Range $156.28 - $265.78
Q4 2021
Shares 81,000 Value ($000) $21,453 Avg Close $269.41 Range $243.29 - $306.98
Q3 2021
Shares 83,400 Value ($000) $24,102 Avg Close $256.54 Range $193.03 - $327.32
Q2 2021
Shares 82,000 Value ($000) $16,369 Avg Close $193.99 Range $162.29 - $223.03
Q1 2021
Shares 82,000 Value ($000) $15,942 Avg Close $205.03 Range $173.09 - $228.84
Q4 2020
Shares 94,000 Value ($000) $18,014 Avg Close $181.94 Range $146.52 - $212.55
Q3 2020
Shares 83,500 Value ($000) $12,319 Avg Close $142.94 Range $120.12 - $159.97
Q2 2020
Shares 84,000 Value ($000) $10,384 Avg Close $117.64 Range $92.00 - $143.93
Q1 2020
Shares 93,300 Value ($000) $9,007 Avg Close $96.54 Range $78.41 - $109.94
Q4 2019
Shares 85,000 Value ($000) $7,862 Avg Close $84.01 Range $72.32 - $93.50
Q3 2019
Shares 70,000 Value ($000) $5,368 Avg Close $87.47 Range $75.80 - $99.25