REPLIGEN CORP - Common Stock, $.01 par value per share (RGEN) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock, $.01 par value per share
Symbol
RGEN on Nasdaq
Shares outstanding
56,251,331
Price per share
$163.86
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
36,850,236
Total reported value
$6,039,028,611
% of total 13F portfolios
0%
Share change
+3,525,244
Value change
+$598,898,665
Number of holders
365
Price from insider filings
$163.86
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of REPLIGEN CORP - Common Stock, $.01 par value per share (RGEN) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 9.3% $724,772,059 5,198,107 BlackRock, Inc. 31 Mar 2025
PRICE T ROWE ASSOCIATES INC /MD/ 6.1% -51% $436,066,901 -$471,286,434 3,429,547 -52% T. Rowe Price Associates, Inc. 31 Aug 2025
FMR LLC 5.1% $473,742,228 2,891,140 FMR LLC 31 Dec 2025
EDDLEMAN ROY T 4.8% $377,254,217 2,705,689 Roy T. Eddleman Living Trust 31 Dec 2024
Roy T. Eddleman Living Trust 4.8% $443,354,200 2,705,689 Roy T. Eddleman Living Trust 31 Dec 2025

As of 31 Dec 2025, 365 institutional investors reported holding 36,850,236 shares of REPLIGEN CORP - Common Stock, $.01 par value per share (RGEN). This represents 66% of the company’s total 56,251,331 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of REPLIGEN CORP - Common Stock, $.01 par value per share (RGEN) together control 50% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 12% 6,619,271 +7.8% 0.02% $1,084,633,737
VANGUARD GROUP INC 8.9% 4,993,945 -1% 0.01% $818,307,828
STATE STREET CORP 3.1% 1,719,093 -4.6% 0.01% $281,690,579
Bank of New York Mellon Corp 2.4% 1,344,706 +2.2% 0.04% $220,343,507
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 2.2% 1,215,527 0.06% $199,176,255
FRANKLIN RESOURCES INC 2% 1,101,447 +160% 0.04% $180,483,177
Conestoga Capital Advisors, LLC 1.9% 1,057,975 +11% 2.9% $173,359,783
GEODE CAPITAL MANAGEMENT, LLC 1.8% 1,029,817 -0.25% 0.01% $168,778,619
Champlain Investment Partners, LLC 1.8% 1,003,951 -25% 1.7% $164,507,411
DIMENSIONAL FUND ADVISORS LP 1.4% 804,410 +0.61% 0.03% $131,820,884
CONGRESS ASSET MANAGEMENT CO 1.3% 746,306 +241% 0.86% $122,289,701
Stephens Investment Management Group LLC 1.2% 657,111 +9.8% 1.4% $107,674,208
MORGAN STANLEY 1% 570,977 +18% 0.01% $93,560,643
GENEVA CAPITAL MANAGEMENT LLC 1% 562,975 -5.7% 1.7% $92,249,110
VOYA INVESTMENT MANAGEMENT LLC 0.93% 521,158 +72% 0.08% $85,396,950
MARSHALL WACE, LLP 0.92% 516,336 +185% 0.08% $84,606,816
NORGES BANK 0.82% 462,094 0.01% $75,718,723
SCHRODER INVESTMENT MANAGEMENT GROUP 0.79% 443,934 -3.6% 0.06% $72,743,026
TimesSquare Capital Management, LLC 0.77% 435,687 +20% 1.1% $71,391,672
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.77% 430,704 +2% 0.01% $70,575,157
Walleye Capital LLC 0.74% 417,110 +125% 0.39% $68,347,645
Impax Asset Management Group plc 0.73% 413,384 -41% 0.42% $67,737,102
Thrivent Financial for Lutherans 0.73% 411,706 -10% 0.12% $67,463,000
Artemis Investment Management LLP 0.73% 410,369 +18% 0.81% $67,243,064
UBS Group AG 0.62% 348,388 -24% 0.01% $57,086,857

Institutional Holders of REPLIGEN CORP - Common Stock, $.01 par value per share (RGEN) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 36,850,236 $6,039,028,611 +$598,898,665 $163.86 365
2025 Q3 59,801,075 $7,995,723,297 +$244,091,517 $133.67 447
2025 Q2 58,017,175 $7,215,764,205 +$69,143,795 $124.38 442
2025 Q1 57,398,139 $7,304,074,415 +$139,148,090 $127.24 438
2024 Q4 56,237,230 $8,094,090,864 +$105,844,498 $143.94 427
2024 Q3 55,459,700 $8,245,941,080 +$30,279,223 $148.82 439
2024 Q2 56,044,624 $7,061,943,055 -$124,495,148 $126.06 443
2024 Q1 56,261,991 $10,338,765,280 -$351,039,614 $183.92 480
2023 Q4 58,123,283 $10,446,984,164 +$202,954,749 $179.80 463
2023 Q3 57,114,183 $9,078,983,361 +$388,815,346 $159.01 435
2023 Q2 54,662,151 $7,739,525,912 +$95,572,264 $141.46 441
2023 Q1 53,769,139 $9,050,236,781 +$70,900,818 $168.36 442
2022 Q4 53,510,392 $9,060,023,350 +$399,717,699 $169.31 436
2022 Q3 51,044,970 $9,557,589,432 +$146,390,498 $187.11 424
2022 Q2 50,252,292 $8,165,826,817 +$277,439,901 $162.40 391
2022 Q1 48,677,414 $9,149,179,277 +$200,963,724 $188.09 431
2021 Q4 47,109,897 $12,469,909,891 -$237,031,385 $264.84 488
2021 Q3 47,237,181 $13,643,742,113 +$286,277,453 $288.99 472
2021 Q2 46,326,341 $9,247,532,543 +$156,619,410 $199.62 421
2021 Q1 45,659,995 $8,873,275,638 +$76,902,679 $194.41 453
2020 Q4 45,796,926 $8,774,116,572 +$266,909,562 $191.63 444
2020 Q3 44,707,932 $6,601,225,733 -$40,211,297 $147.54 384
2020 Q2 45,107,923 $5,577,989,614 -$187,234,914 $123.61 363
2020 Q1 46,463,810 $4,483,615,651 +$298,271,944 $96.54 301
2019 Q4 43,538,059 $4,026,527,029 -$117,270,573 $92.50 296
2019 Q3 44,787,098 $3,433,491,573 -$8,489,335 $76.69 295
2019 Q2 44,747,389 $3,843,255,917 +$502,114,798 $85.95 264
2019 Q1 40,224,387 $2,376,319,121 +$32,032,553 $59.08 241
2018 Q4 39,767,674 $2,097,073,822 -$116,566,198 $52.74 237
2018 Q3 41,788,098 $2,317,550,403 +$69,379,349 $55.46 196
2018 Q2 40,579,436 $1,908,570,055 +$106,872,252 $47.04 188
2018 Q1 38,649,161 $1,398,390,226 +$29,165,817 $36.18 181
2017 Q4 37,859,448 $1,373,622,569 +$48,489,524 $36.28 178
2017 Q3 36,449,660 $1,396,445,142 +$28,789,176 $38.32 187
2017 Q2 35,593,025 $1,474,924,268 +$151,642,443 $41.44 197
2017 Q1 32,529,133 $1,144,981,808 +$158,118,910 $35.20 179
2016 Q4 32,263,497 $994,535,738 +$13,422,590 $30.82 180
2016 Q3 31,904,315 $962,738,212 +$47,789,217 $30.19 177
2016 Q2 30,428,990 $832,590,372 +$19,372,010 $27.36 181
2016 Q1 29,619,988 $794,428,927 +$36,143,815 $26.82 180
2015 Q4 28,540,885 $807,342,773 -$43,257,537 $28.29 173
2015 Q3 30,095,607 $838,161,582 -$17,473,045 $27.85 183
2015 Q2 30,306,137 $1,250,670,824 +$37,385,722 $41.27 173
2015 Q1 29,621,574 $898,254,268 +$24,883,359 $30.36 166
2014 Q4 28,861,708 $571,461,773 +$24,816,515 $19.80 158
2014 Q3 28,133,338 $560,134,714 -$3,584,613 $19.91 162
2014 Q2 28,122,228 $640,523,743 +$56,963,037 $22.79 162
2014 Q1 26,217,884 $337,427,505 +$13,060,004 $12.86 132