REPLIGEN CORP RGEN
COM · Common Stock · CUSIP 759916109 · ISIN US7599161095
- SectorHealth care
- IndustryBiological Products, (No Diagnostic Substances)
- HeadquartersWaltham, MA
- Founded1981
- Websiterepligen.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($15.3m this quarter). Holder counts are more reliable. Shares outstanding: 55.5m as of 2022-10-28, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $169.31. Options: 12 managers hold calls ($83.9m notional), 10 hold puts ($50.6m).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 434 |
| Q4 2022 | 443 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $45.4m | $69.1m | 1.52 |
| Q4 2022 | $83.9m | $50.6m | 0.60 |
Biggest buyers
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +1.4m |
| FMR LLC | Added | +845.5k |
| LORD, ABBETT & CO. LLC | Added | +497.2k |
| ALLIANCEBERNSTEIN L.P. | Added | +267.4k |
| MACQUARIE GROUP LTD | Added | +243.9k |
| STATE STREET CORP | Added | +206.4k |
| BlackRock Inc. | Added | +204.7k |
| MORGAN STANLEY | Added | +151.8k |
| SANDS CAPITAL MANAGEMENT, LLC | Added | +142.5k |
| EAGLE ASSET MANAGEMENT INC | Added | +134.8k |
Biggest sellers
| 1832 Asset Management L.P. | Sold out | -545.5k |
| BROWN CAPITAL MANAGEMENT LLC | Reduced | -287.7k |
| Invesco Ltd. | Reduced | -280.3k |
| Point72 Asset Management, L.P. | Reduced | -222.9k |
| AXIOM INVESTORS LLC /DE | Reduced | -169.9k |
| JANE STREET GROUP, LLC | Reduced | -164.9k |
| Echo Street Capital Management LLC | Reduced | -150.4k |
| Allspring Global Investments Holdings, LLC | Reduced | -137.4k |
| MARSHALL WACE, LLP | Reduced | -131.2k |
| 12 West Capital Management LP | Reduced | -127.8k |
Biggest calls
| JANE STREET GROUP, LLC | Added | $31.6m186.8k shares |
| MILLENNIUM MANAGEMENT LLC | New | $14.6m86.0k shares |
| CITADEL ADVISORS LLC | Added | $11.1m65.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $10.2m60.5k shares |
| SIMPLEX TRADING, LLC | Added | $6.3m37.0k shares |
| JPMORGAN CHASE & CO | New | $2.7m16.1k shares |
| Twin Tree Management, LP | New | $2.6m15.6k shares |
| D. E. Shaw & Co., Inc. | Reduced | $2.1m12.4k shares |
| GROUP ONE TRADING LLC | Reduced | $2.1m12.3k shares |
| Walleye Trading LLC | New | $270.9k1.6k shares |
Biggest puts
| Twin Tree Management, LP | Reduced | $26.0m153.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $8.4m49.4k shares |
| CITADEL ADVISORS LLC | Added | $6.0m35.5k shares |
| JANE STREET GROUP, LLC | Reduced | $4.2m25.0k shares |
| PURA VIDA INVESTMENTS, LLC | Reduced | $3.4m19.8k shares |
| D. E. Shaw & Co., Inc. | Reduced | $2.0m12.0k shares |
| PEAK6 Investments LLC | New | $338.6k2.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $253.0k1.5k shares |
| GROUP ONE TRADING LLC | New | $16.9k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| FMR LLC 13G · institution +7.9 pts · filed 2026-10-07 | 13.0% |
| BlackRock, Inc. 13G · institution filed 2025-04-24 | 9.3% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-07-31 | 5.0% |
Fell to 5% or below in the last year: PRICE T ROWE ASSOCIATES INC /MD/ (3.1%, 2026-08-14), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC), Roy T. Eddleman Living Trust (4.8%, 2026-02-13)
Insider purchases and sales in Q4 2022
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 4 | $7.6m | — |
| Q1 2022 | 1 | $109.4k | 1 | $396.1k | — |
| Q2 2022 | 0 | — | 1 | $2.2m | — |
| Q3 2022 | 0 | — | 6 | $15.7m | — |
| Q4 2022 | 0 | — | 1 | $5.0m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2022-11-11 | Hunt Anthony Chief Executive Officer, director | Sold | $5.0m25.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.03% of their portfolio | 6.1m $1.0bn | Added +204.7k |
| VANGUARD GROUP INC 0.02% of their portfolio | 5.2m $881.3m | Added +76.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.14% of their portfolio | 5.1m $858.5m | Added +1.4m |
| SANDS CAPITAL MANAGEMENT, LLC 1.14% of their portfolio | 1.8m $301.6m | Added +142.5k |
| WCM INVESTMENT MANAGEMENT, LLC 0.90% of their portfolio | 1.6m $271.2m | Added +82.4k |
| STATE STREET CORP 0.02% of their portfolio | 1.6m $270.9m | Added +206.4k |
| Invesco Ltd. 0.08% of their portfolio | 1.6m $266.0m | Reduced -280.3k |
| BROWN CAPITAL MANAGEMENT LLC 4.07% of their portfolio | 1.5m $245.9m | Reduced -287.7k |
| Artisan Partners Limited Partnership 0.35% of their portfolio | 1.2m $197.7m | Reduced -5.8k |
| MACQUARIE GROUP LTD 0.22% of their portfolio | 1.1m $186.5m | Added +243.9k |
| AMERIPRISE FINANCIAL INC 0.06% of their portfolio | 1.1m $183.6m | Reduced -41.1k |
| Bank of New York Mellon Corp 0.04% of their portfolio | 1.1m $182.9m | Added +96.5k |
| ALLIANCEBERNSTEIN L.P. 0.08% of their portfolio | 1.1m $182.7m | Added +267.4k |
| FRANKLIN RESOURCES INC 0.09% of their portfolio | 1.1m $180.4m | Reduced -576 |
| FMR LLC 0.02% of their portfolio | 1.0m $169.9m | Added +845.5k |
| WELLINGTON MANAGEMENT GROUP LLP 0.03% of their portfolio | 830.7k $140.7m | Added +56.1k |
| Impax Asset Management Group plc 0.62% of their portfolio | 820.9k $138.2m | Added +66.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 759.8k $128.5m | Added +45.6k |
| Conestoga Capital Advisors, LLC 2.16% of their portfolio | 681.8k $115.4m | Added +755 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.44% of their portfolio | 673.6k $114.0m | Added +126.2k |
| 12 West Capital Management LP 11.42% of their portfolio | 667.6k $113.0m | Reduced -127.8k |
| LORD, ABBETT & CO. LLC 0.20% of their portfolio | 667.0k $112.9m | Added +497.2k |
| Stephens Investment Management Group LLC 1.69% of their portfolio | 546.0k $93.3m | Added +3.4k |
| FEDERATED HERMES, INC. 0.24% of their portfolio | 506.4k $85.7m | Added +3.4k |
| EAGLE ASSET MANAGEMENT INC 0.47% of their portfolio | 473.4k $76.7m | Added +134.8k |
| Pendal Group Ltd 0.68% of their portfolio | 465.2k $78.8m | Added +18.3k |
| NORTHERN TRUST CORP 0.02% of their portfolio | 452.3k $76.6m | Added +52.7k |
| NORGES BANK 0.02% of their portfolio | 449.8k $76.2m | Reduced -43.0k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 441.8k $74.8m | Reduced -80.7k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.10% of their portfolio | 430.3k $72.9m | Reduced -7.5k |
| MORGAN STANLEY 0.01% of their portfolio | 415.3k $70.3m | Added +151.8k |
| FRED ALGER MANAGEMENT, LLC 0.38% of their portfolio | 415.2k $70.3m | Reduced -77.1k |
| GOLDMAN SACHS GROUP INC 0.02% of their portfolio | 359.0k $60.8m | Added +2.2k |
| Baird Financial Group, Inc. 0.16% of their portfolio | 357.6k $60.5m | Reduced -3.5k |
| Champlain Investment Partners, LLC 0.38% of their portfolio | 347.4k $58.8m | Added +128.7k |
| Echo Street Capital Management LLC 0.57% of their portfolio | 345.4k $58.5m | Reduced -150.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 307.3k $52.0m | Added +12.4k |
| Allspring Global Investments Holdings, LLC 0.09% of their portfolio | 302.0k $51.1m | Reduced -137.4k |
| BESSEMER GROUP INC 0.12% of their portfolio | 281.0k $47.6m | Added +6.4k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.02% of their portfolio | 264.5k $44.8m | Added +69.9k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 240.6k $40.7m | Reduced -6.9k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 233.9k $39.6m | Added +3.9k |
| PALISADE CAPITAL MANAGEMENT, LP 1.05% of their portfolio | 230.1k $39.0m | Reduced -4.7k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 215.2k $36.4m | Reduced -49.9k |
| Swiss National Bank 0.03% of their portfolio | 214.1k $36.2m | Added +89.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.03% of their portfolio | 204.1k $34.6m | Added +821 |
| Legal & General Group Plc 0.01% of their portfolio | 201.4k $34.1m | Added +106.4k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.26% of their portfolio | 200.9k $34.0m | Added +34.6k |
| Ranger Investment Management, L.P. 2.44% of their portfolio | 194.5k $32.9m | Added +5.6k |
| Amundi 0.02% of their portfolio | 190.5k $33.8m | Added +133.4k |
| GILDER GAGNON HOWE & CO LLC 0.60% of their portfolio | 190.4k $32.2m | Reduced -1.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.02% of their portfolio | 188.8k $32.0m | Added +38.7k |
| Iron Triangle Partners LP 5.40% of their portfolio | 178.0k $30.1m | Added +78.0k |
| Thrivent Financial for Lutherans 0.08% of their portfolio | 177.5k $30.0m | Added +2.5k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.10% of their portfolio | 170.2k $28.8m | Added +11.0k |
| RHUMBLINE ADVISERS 0.04% of their portfolio | 154.9k $26.2m | Added +3.4k |
| AMERICAN CAPITAL MANAGEMENT INC 0.93% of their portfolio | 140.8k $23.8m | Added +17.8k |
| SEI INVESTMENTS CO 0.05% of their portfolio | 138.7k $23.5m | Reduced -9.0k |
| FIRST TRUST ADVISORS LP 0.03% of their portfolio | 135.2k $22.9m | Added +89.7k |
| Sumitomo Mitsui Trust Group, Inc. 0.02% of their portfolio | 130.7k $22.1m | New |
| GENEVA CAPITAL MANAGEMENT LLC 0.49% of their portfolio | 129.1k $21.9m | Reduced -12.3k |
| Balyasny Asset Management L.P. 0.08% of their portfolio | 127.7k $21.6m | Added +126.5k |
| EVENTIDE ASSET MANAGEMENT, LLC 0.40% of their portfolio | 119.0k $20.1m | Unchanged |
| COMERICA BANK 0.17% of their portfolio | 117.7k $21.9m | Added +12.3k |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.10% of their portfolio | 112.5k $19.0m | Added +605 |
| Granahan Investment Management, LLC 0.56% of their portfolio | 107.7k $18.2m | Added +40.3k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 106.4k $18.0m | Reduced -19.8k |
| ZEVENBERGEN CAPITAL INVESTMENTS LLC 0.60% of their portfolio | 105.8k $17.9m | Reduced -2.4k |
| California Public Employees Retirement System 0.02% of their portfolio | 104.5k $17.7m | Reduced -8.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 103.9k $17.6m | Reduced -754 |
| AWM Investment Company, Inc. 2.44% of their portfolio | 100.0k $16.9m | Unchanged |
| Curi Capital, LLC 0.59% of their portfolio | 97.3k $16.5m | Reduced -11.3k |
| AXIOM INVESTORS LLC /DE 0.32% of their portfolio | 97.0k $16.4m | Reduced -169.9k |
| Atika Capital Management LLC 2.40% of their portfolio | 92.8k $15.7m | Added +8.8k |
| ROYCE & ASSOCIATES LP 0.16% of their portfolio | 92.4k $15.7m | Reduced -7.7k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 89.4k $15.1m | Added +22.1k |
| Nicholas Investment Partners, LP 1.30% of their portfolio | 87.5k $14.8m | Reduced -235 |
| NORTH STAR ASSET MANAGEMENT INC 0.92% of their portfolio | 87.1k $14.7m | Added +2.5k |
| RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio | 86.9k $14.7m | Reduced -529 |
| Point72 Asset Management, L.P. 0.05% of their portfolio | 84.2k $14.3m | Reduced -222.9k |
| STRS OHIO 0.06% of their portfolio | 81.9k $13.9m | Reduced -9.6k |
| DF DENT & CO INC 0.20% of their portfolio | 80.9k $13.7m | Reduced -2.8k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.10% of their portfolio | 80.7k $13.7m | Reduced -1.0k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 75.9k $12.9m | Added +44.1k |
| Twin Tree Management, LP 0.38% of their portfolio | 73.4k $12.4m | Added +9.5k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.08% of their portfolio | 69.9k $11.8m | Added +7.1k |
| Retirement Systems of Alabama 0.05% of their portfolio | 68.1k $11.5m | Added +497 |
| Cercano Management LLC 0.46% of their portfolio | 66.2k $11.2m | First filing |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 66.0k $11.2m | Reduced -4.9k |
| VAN ECK ASSOCIATES CORP 0.03% of their portfolio | 65.0k $11.0m | Added +16.7k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.03% of their portfolio | 64.1k $10.9m | Added +220 |
| Alberta Investment Management Corp 0.09% of their portfolio | 63.2k $10.7m | Added +7.0k |
| MARSHALL WACE, LLP 0.03% of their portfolio | 63.2k $10.7m | Reduced -131.2k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 61.2k $10.4m | Added +100 |
| STEPHENS INC /AR/ 0.20% of their portfolio | 57.2k $9.7m | Added +3.3k |
| Eversept Partners, LP 0.93% of their portfolio | 57.0k $9.7m | Added +53.4k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 55.6k $9.4m | Added +695 |
| APG Asset Management N.V. 0.02% of their portfolio | 54.7k $9.3m | New |
| Summit Creek Advisors LLC 1.22% of their portfolio | 52.8k $8.9m | Reduced -18.4k |
| BARCLAYS PLC 0.01% of their portfolio | 49.2k $8.3m | First filing |