REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC's Holding History (CIK: 0001629649)

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

Q4 2025

Shares 11,839 Value ($000) $1,940 Avg Close $156.63 Range $134.19 - $174.01

Q3 2025

Shares 11,787 Value ($000) $1,576 Avg Close $121.47 Range $110.77 - $135.57

Q2 2025

Shares 11,666 Value ($000) $1,451 Avg Close $127.25 Range $102.97 - $148.94

Q1 2025

Shares 11,586 Value ($000) $1,474 Avg Close $153.93 Range $125.39 - $182.52

Q4 2024

Shares 11,576 Value ($000) $1,666 Avg Close $143.40 Range $121.52 - $161.24

Q3 2024

Shares 11,555 Value ($000) $1,720 Avg Close $143.39 Range $117.63 - $172.65

Q2 2024

Shares 11,598 Value ($000) $1,462 Avg Close $156.74 Range $113.50 - $184.98

Q1 2024

Shares 11,581 Value ($000) $2,130 Avg Close $190.44 Range $167.40 - $211.13

Q4 2023

Shares 11,551 Value ($000) $2,077 Avg Close $155.67 Range $110.45 - $188.31

Q3 2023

Shares 11,500 Value ($000) $1,829 Avg Close $163.47 Range $134.64 - $181.26

Q2 2023

Shares 11,507 Value ($000) $1,628 Avg Close $160.35 Range $135.37 - $182.42

Q1 2023

Shares 11,456 Value ($000) $1,929 Avg Close $178.42 Range $147.53 - $200.98

Q4 2022

Shares 4,779 Value ($000) $809 Avg Close $181.39 Range $158.58 - $225.62

Q3 2022

Shares 7,453 Value ($000) $1,395 Avg Close $210.87 Range $157.33 - $262.26

Q2 2022

Shares 8,630 Value ($000) $1,402 Avg Close $158.16 Range $137.21 - $190.59

Q1 2022

Shares 8,540 Value ($000) $1,606 Avg Close $189.96 Range $156.28 - $265.78

Q4 2021

Shares 8,524 Value ($000) $2,257 Avg Close $269.41 Range $243.29 - $306.98

Q3 2021

Shares 8,446 Value ($000) $2,441 Avg Close $256.54 Range $193.03 - $327.32

Q2 2021

Shares 8,504 Value ($000) $1,698 Avg Close $193.99 Range $162.29 - $223.03

Q1 2021

Shares 8,497 Value ($000) $1,652 Avg Close $205.03 Range $173.09 - $228.84

Q4 2020

Shares 17,305 Value ($000) $3,316 Avg Close $181.94 Range $146.52 - $212.55

Q3 2020

Shares 16,380 Value ($000) $2,025 Avg Close $142.94 Range $120.12 - $159.97

Q2 2020

Shares 16,380 Value ($000) $2,025 Avg Close $117.64 Range $92.00 - $143.93

Q1 2020

Shares 16,286 Value ($000) $1,572 Avg Close $96.54 Range $78.41 - $109.94

Q4 2019

Shares 13,382 Value ($000) $1,238 Avg Close $84.01 Range $72.32 - $93.50

Q3 2019

Shares 13,224 Value ($000) $1,014 Avg Close $87.47 Range $75.80 - $99.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	11,839	$1,940	$156.63	$134.19 - $174.01
Q3 2025	11,787	$1,576	$121.47	$110.77 - $135.57
Q2 2025	11,666	$1,451	$127.25	$102.97 - $148.94
Q1 2025	11,586	$1,474	$153.93	$125.39 - $182.52
Q4 2024	11,576	$1,666	$143.40	$121.52 - $161.24
Q3 2024	11,555	$1,720	$143.39	$117.63 - $172.65
Q2 2024	11,598	$1,462	$156.74	$113.50 - $184.98
Q1 2024	11,581	$2,130	$190.44	$167.40 - $211.13
Q4 2023	11,551	$2,077	$155.67	$110.45 - $188.31
Q3 2023	11,500	$1,829	$163.47	$134.64 - $181.26
Q2 2023	11,507	$1,628	$160.35	$135.37 - $182.42
Q1 2023	11,456	$1,929	$178.42	$147.53 - $200.98
Q4 2022	4,779	$809	$181.39	$158.58 - $225.62
Q3 2022	7,453	$1,395	$210.87	$157.33 - $262.26
Q2 2022	8,630	$1,402	$158.16	$137.21 - $190.59
Q1 2022	8,540	$1,606	$189.96	$156.28 - $265.78
Q4 2021	8,524	$2,257	$269.41	$243.29 - $306.98
Q3 2021	8,446	$2,441	$256.54	$193.03 - $327.32
Q2 2021	8,504	$1,698	$193.99	$162.29 - $223.03
Q1 2021	8,497	$1,652	$205.03	$173.09 - $228.84
Q4 2020	17,305	$3,316	$181.94	$146.52 - $212.55
Q3 2020	16,380	$2,025	$142.94	$120.12 - $159.97
Q2 2020	16,380	$2,025	$117.64	$92.00 - $143.93
Q1 2020	16,286	$1,572	$96.54	$78.41 - $109.94
Q4 2019	13,382	$1,238	$84.01	$72.32 - $93.50
Q3 2019	13,224	$1,014	$87.47	$75.80 - $99.25