Latest Period
Q1 2026
Security Snapshot
REPLIGEN CORP - Common Stock (RGEN) Institutional Ownership
CUSIP: 759916109
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
437
Shares (Excl. Options)
65,420,599
Price
$117.82
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- Security type / class
- Equity / Common Stock
- Symbol
- RGEN on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 65,420,599
- Total 13F value
- $7,744,690,607
- Portfolio coverage rank
- 0.01%
- Share change
- +3,221,952
- Value change
- +$283,123,093
- Number of holders
- 437
- Shares outstanding
- 56,095,854
- SEC-reported price per share
- $117.20
- Insider filing price
- $117.20
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- RGEN - REPLIGEN CORP - Common Stock is tracked under CUSIP 759916109.
- 437 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 472 to 437 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $10,234,085,809 to $7,744,690,607.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 437 institutions filings for Q1 2026.
Security key
759916109
Latest holder period
Q1 2026
13F holders
437
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
RGEN full holder history
REPLIGEN CORP SEC filings
REPLIGEN CORP company facts
REPLIGEN CORP insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 759916109:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
RGEN
| 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/ | 8.2% | +35% | $753,733,060 | +$191,767,488 | 4,599,860 | +34% | T. Rowe Price Associates, Inc. | 31 Dec 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 Mar 2026, 437 institutional investors reported holding 65,420,599 shares of REPLIGEN CORP - Common Stock (RGEN). This represents 117% of the company’s total 56,095,854 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
76%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 11% | 5,993,054 | -9.5% | 0.01% | $706,101,618 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 8.7% | 4,878,141 | +6.1% | 0.07% | $574,743,000 |
| FMR LLC | 5.1% | 2,886,786 | +0.66% | 0.02% | $340,121,066 |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | 4.9% | 2,773,980 | +0.11% | 2% | $326,830,324 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.3% | 2,396,511 | 0% | 0.01% | $282,356,926 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.1% | 2,305,094 | 0% | 0.01% | $271,586,175 |
| STATE STREET CORP | 3.2% | 1,777,285 | +3.4% | 0.01% | $209,399,719 |
| Bank of New York Mellon Corp | 2.7% | 1,531,402 | +14% | 0.03% | $180,429,810 |
| MAVERICK CAPITAL LTD | 2.7% | 1,518,805 | 2.1% | $178,945,605 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 2.5% | 1,397,515 | +15% | 0.06% | $164,653,111 |
| T. Rowe Price Investment Management, Inc. | 2.4% | 1,366,680 | +112% | 0.11% | $161,023,000 |
| Invesco Ltd. | 2.3% | 1,278,255 | +1.7% | 0.02% | $150,604,003 |
| WASATCH ADVISORS LP | 2.2% | 1,243,531 | 0.97% | $146,512,822 | |
| RTW INVESTMENTS, LP | 2.1% | 1,206,000 | +13% | 1.4% | $142,090,920 |
| FRANKLIN RESOURCES INC | 2.1% | 1,193,139 | +8.3% | 0.03% | $140,575,621 |
| CITADEL ADVISORS LLC | 2% | 1,099,181 | -21% | 0.09% | $129,505,505 |
| Conestoga Capital Advisors, LLC | 2% | 1,097,783 | +3.8% | 2.6% | $129,340,793 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.9% | 1,064,457 | +3.4% | 0.01% | $125,442,489 |
| AMERIPRISE FINANCIAL INC | 1.6% | 925,214 | +87% | 0.03% | $109,008,799 |
| Vestal Point Capital, LP | 1.6% | 925,000 | +1014% | 3% | $108,983,500 |
| DIMENSIONAL FUND ADVISORS LP | 1.5% | 854,741 | +6.3% | 0.02% | $100,681,052 |
| ALLIANCEBERNSTEIN L.P. | 1.5% | 831,792 | -16% | 0.05% | $136,297,437 |
| CONGRESS ASSET MANAGEMENT CO | 1.4% | 797,867 | +6.9% | 0.67% | $94,004,690 |
| Stephens Investment Management Group LLC | 1.3% | 755,571 | +15% | 1.2% | $89,021,375 |
| Holocene Advisors, LP | 1.3% | 708,889 | -26% | 0.2% | $83,521,302 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 65,420,599 | $7,744,690,607 | +$283,123,093 | $117.82 | 437 |
| 2025 Q4 | 62,452,451 | $10,234,085,809 | +$501,267,200 | $163.86 | 472 |
| 2025 Q3 | 59,801,741 | $7,995,812,322 | +$244,121,325 | $133.67 | 449 |
| 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 |