Vault-13

REPLIGEN CORP RGEN

COM · Common Stock · CUSIP 759916109 · ISIN US7599161095

434 institutional holders
50,918,08650.9m shares reported held*
91.7% of all shares outstanding*
$9.5bnreported value*

* 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 ($26.4m 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 ≈ $187.23. Options: 9 managers hold calls ($45.4m notional), 11 hold puts ($69.1m).

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP — $16.2m86.7k shares
CITADEL ADVISORS LLC — $9.8m52.4k shares
JANE STREET GROUP, LLC — $5.6m29.7k shares
GROUP ONE TRADING LLC — $4.0m21.4k shares
D. E. Shaw & Co., Inc. — $3.8m20.4k shares
NOMURA HOLDINGS INC — $3.0m16.1k shares
DRW SECURITIES, L.L.C. — $2.0m10.6k shares
SIMPLEX TRADING, LLC — $991.0k5.3k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares

Biggest puts

Twin Tree Management, LP — $33.7m180.3k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $9.9m53.0k shares
CITADEL ADVISORS LLC — $6.0m31.8k shares
PURA VIDA INVESTMENTS, LLC — $5.6m30.0k shares
D. E. Shaw & Co., Inc. — $5.3m28.5k shares
JANE STREET GROUP, LLC — $4.8m25.4k shares
JPMORGAN CHASE & CO — $1.4m7.7k shares
SIMPLEX TRADING, LLC — $1.2m6.2k shares
TWO SIGMA SECURITIES, LLC — $674.0k3.6k shares
MILLENNIUM MANAGEMENT LLC — $561.0k3.0k 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.

HolderStakeChangeShares Last filed
FMR LLC 13G · institution +7.9 pts · filed 2026-10-07 13.0% +7.9 pts 7.4m≈ $1.0bn 2026-10-07
BlackRock, Inc. 13G · institution filed 2025-04-24 9.3% 5.2m≈ $709.2m 2025-04-24
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-07-31 5.0% new 2.8m≈ $385.5m 2026-07-31

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 Q3 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)

BuyingSelling
10010Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 0 buyingQ4 21: 4 sellingQ1 22: 1 buyingQ1 22: 1 sellingQ1 22Q2 22: 0 buyingQ2 22: 1 sellingQ3 22: 0 buyingQ3 22: 6 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—4$7.6m—
Q1 20221$109.4k1$396.1k—
Q2 20220—1$2.2m—
Q3 20220—6$15.7m—
DateInsiderTradeSharesPrice ValueTheir holding
2022-09-09 DAWES KAREN A Director Sold 775 $227.17 $176.1k775 shares -1%
2022-09-08 Hunt Anthony Chief Executive Officer, director Sold 26,402 $224.73 $5.9m26.4k shares -13%
2022-08-16 Snodgres Jon Chief Financial Officer Sold 6,698 $252.86 $1.7m6.7k shares -16%
2022-08-11 KURIYEL RALF Senior VP, R&D Sold 4,840 $254.32 $1.2m4.8k shares -20%
2022-08-04 Gebski Christine Officer Sold 3,357 $243.01 $815.8k3.4k shares -10%
2022-08-03 Bylund James Chief Operating Officer Sold 2,000 $240.40 $480.8k2.0k shares -17%
2022-08-01 Snodgres Jon Chief Financial Officer Sold 2,000 $220.00 $440.0k2.0k shares -5%
2022-07-21 Hunt Anthony Chief Executive Officer, director Sold 24,802 $200.00 $5.0m24.8k shares -11%

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, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock Inc. 0.04% of their portfolio New York, NY 5,919,1895.9m $1.1bn $1.1bn 0.04% —
2 VANGUARD GROUP INC 0.03% of their portfolio Valley Forge, PA 5,128,8845.1m $959.7m $959.7m 0.03% —
3 PRICE T ROWE ASSOCIATES INC /MD/ 0.11% of their portfolio BALTIMORE, MD 3,659,5793.7m $684.7m $684.7m 0.11% —
4 Invesco Ltd. 0.11% of their portfolio ATLANTA, GA 1,851,2711.9m $346.4m $346.4m 0.11% —
5 BROWN CAPITAL MANAGEMENT LLC 4.56% of their portfolio BALTIMORE, MD 1,740,0341.7m $325.6m $325.6m 4.56% —
6 SANDS CAPITAL MANAGEMENT, LLC 1.15% of their portfolio ARLINGTON, VA 1,638,9591.6m $306.7m $306.7m 1.15% —
7 WCM INVESTMENT MANAGEMENT, LLC 1.04% of their portfolio LAGUNA BEACH, CA 1,519,6261.5m $290.3m $290.3m 1.04% —
8 STATE STREET CORP 0.02% of their portfolio BOSTON, MA 1,393,5801.4m $260.8m $260.8m 0.02% —
9 Artisan Partners Limited Partnership 0.39% of their portfolio Milwaukee, WI 1,173,6831.2m $219.6m $219.6m 0.39% —
10 AMERIPRISE FINANCIAL INC 0.08% of their portfolio MINNEAPOLIS, MN 1,125,5711.1m $210.6m $210.6m 0.08% —
11 FRANKLIN RESOURCES INC 0.11% of their portfolio San Mateo, CA 1,066,1101.1m $199.5m $199.5m 0.11% —
12 Bank of New York Mellon Corp 0.04% of their portfolio NEW YORK, NY 983,641983.6k $184.0m $184.0m 0.04% —
13 MACQUARIE GROUP LTD 0.20% of their portfolio Sydney, NSW 2000, C3 857,880857.9k $160.7m $160.7m 0.20% —
14 ALLIANCEBERNSTEIN L.P. 0.07% of their portfolio NASHVILLE, TN 811,669811.7k $151.9m $151.9m 0.07% —
15 12 West Capital Management LP 13.13% of their portfolio NEW YORK, NY 795,433795.4k $148.8m $148.8m 13.13% —
16 WELLINGTON MANAGEMENT GROUP LLP 0.03% of their portfolio Boston, MA 774,670774.7k $144.9m $144.9m 0.03% —
17 Impax Asset Management Group plc 0.72% of their portfolio LONDON, X0 754,101754.1k $140.4m $140.4m 0.72% —
18 GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio BOSTON, MA 714,198714.2k $133.6m $133.6m 0.02% —
19 Conestoga Capital Advisors, LLC 2.49% of their portfolio WAYNE, PA 681,063681.1k $127.4m $127.4m 2.49% —
20 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.40% of their portfolio CHICAGO, IL 547,384547.4k $102.4m $102.4m 0.40% —
21 1832 Asset Management L.P. 0.22% of their portfolio TORONTO, A6 545,500545.5k $102.1m $102.1m 0.22% —
22 Stephens Investment Management Group LLC 1.92% of their portfolio LITTLE ROCK, AR 542,598542.6k $101.5m $101.5m 1.92% —
23 BANK OF AMERICA CORP /DE/ 0.01% of their portfolio CHARLOTTE, NC 522,517522.5k $97.8m $97.8m 0.01% —
24 FEDERATED HERMES, INC. 0.28% of their portfolio PITTSBURGH, PA 502,962503.0k $94.1m $94.1m 0.28% —
25 Echo Street Capital Management LLC 0.89% of their portfolio New York, NY 495,798495.8k $92.8m $92.8m 0.89% —
26 NORGES BANK 0.02% of their portfolio OSLO, Q8 492,752492.8k $92.2m $92.2m 0.02% —
27 FRED ALGER MANAGEMENT, LLC 0.47% of their portfolio NEW YORK, NY 492,296492.3k $92.1m $92.1m 0.47% —
28 Pendal Group Ltd 0.81% of their portfolio SYDNEY, C3 446,863446.9k $83.6m $83.6m 0.81% —
29 Allspring Global Investments Holdings, LLC 0.15% of their portfolio CHARLOTTE, NC 439,423439.4k $82.2m $82.2m 0.15% —
30 NEW YORK STATE COMMON RETIREMENT FUND 0.12% of their portfolio ALBANY, NY 437,811437.8k $81.9m $81.9m 0.12% —
31 NORTHERN TRUST CORP 0.02% of their portfolio CHICAGO, IL 399,578399.6k $74.8m $74.8m 0.02% —
32 Baird Financial Group, Inc. 0.20% of their portfolio MILWAUKEE, WI 361,089361.1k $67.6m $67.6m 0.20% —
33 GOLDMAN SACHS GROUP INC 0.02% of their portfolio NEW YORK, NY 356,809356.8k $66.8m $66.8m 0.02% —
34 EAGLE ASSET MANAGEMENT INC 0.41% of their portfolio ST PETERSBURG, FL 338,586338.6k $63.4m $63.4m 0.41% —
35 Point72 Asset Management, L.P. 0.25% of their portfolio STAMFORD, CT 307,104307.1k $57.5m $57.5m 0.25% —
36 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio SAN FRANCISCO, CA 294,893294.9k $55.2m $55.2m 0.02% —
37 BESSEMER GROUP INC 0.13% of their portfolio WOODBRIDGE, NJ 274,608274.6k $51.4m $51.4m 0.13% —
38 AXIOM INVESTORS LLC /DE 1.05% of their portfolio GREENWICH, CT 266,927266.9k $49.9m $49.9m 1.05% —
39 Nuveen Asset Management, LLC 0.02% of their portfolio CHICAGO, IL 265,101265.1k $49.6m $49.6m 0.02% —
40 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 263,564263.6k $49.3m $49.3m 0.01% —
41 JPMORGAN CHASE & CO 0.01% of their portfolio NEW YORK, NY 247,478247.5k $46.3m $46.3m 0.01% —
42 PALISADE CAPITAL MANAGEMENT, LP 1.25% of their portfolio FORT LEE, NJ 234,799234.8k $43.9m $43.9m 1.25% —
43 DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio AUSTIN, TX 229,989230.0k $43.0m $43.0m 0.02% —
44 Champlain Investment Partners, LLC 0.28% of their portfolio BURLINGTON, VT 218,735218.7k $40.9m $40.9m 0.28% —
45 PRINCIPAL FINANCIAL GROUP INC 0.03% of their portfolio DES MOINES, IA 203,278203.3k $38.0m $38.0m 0.03% —
46 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 194,550194.6k $36.4m $36.4m 0.01% —
47 MARSHALL WACE, LLP 0.09% of their portfolio LONDON, X0 194,315194.3k $36.4m $36.4m 0.09% —
48 GILDER GAGNON HOWE & CO LLC 0.63% of their portfolio New York, NY 191,490191.5k $35.8m $35.8m 0.63% —
49 Ranger Investment Management, L.P. 2.78% of their portfolio DALLAS, TX 188,944188.9k $35.4m $35.4m 2.78% —
50 JANE STREET GROUP, LLC 0.06% of their portfolio NEW YORK, NY 176,815176.8k $33.1m $33.1m 0.06% —
51 Thrivent Financial for Lutherans 0.09% of their portfolio Minneapolis, MN 174,967175.0k $32.7m $32.7m 0.09% —
52 LORD, ABBETT & CO. LLC 0.12% of their portfolio JERSEY CITY, NJ 169,832169.8k $31.8m $31.8m 0.12% —
53 WESTFIELD CAPITAL MANAGEMENT CO LP 0.25% of their portfolio BOSTON, MA 166,248166.2k $31.1m $31.1m 0.25% —
54 BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.12% of their portfolio Paris, I0 159,177159.2k $29.8m $29.8m 0.12% —
55 FMR LLC 0.00% of their portfolio BOSTON, MA 157,745157.7k $29.5m $29.5m 0.00% —
56 RHUMBLINE ADVISERS 0.04% of their portfolio BOSTON, MA 151,537151.5k $28.4m $28.4m 0.04% —
57 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.02% of their portfolio NEW YORK, NY 150,041150.0k $28.1m $28.1m 0.02% —
58 SEI INVESTMENTS CO 0.06% of their portfolio OAKS, PA 147,670147.7k $27.6m $27.6m 0.06% —
59 GENEVA CAPITAL MANAGEMENT LLC 0.61% of their portfolio MILWAUKEE, WI 141,413141.4k $26.5m $26.5m 0.61% —
60 AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio KANSAS CITY, MO 126,139126.1k $23.6m $23.6m 0.02% —
61 Swiss National Bank 0.02% of their portfolio ZURICH, V8 124,900124.9k $23.4m $23.4m 0.02% —
62 AMERICAN CAPITAL MANAGEMENT INC 0.91% of their portfolio NEW YORK, NY 122,924122.9k $23.0m $23.0m 0.91% —
63 EVENTIDE ASSET MANAGEMENT, LLC 0.44% of their portfolio Boston, MA 119,000119.0k $22.3m $22.3m 0.44% —
64 VICTORY CAPITAL MANAGEMENT INC 0.03% of their portfolio San Antonio, TX 116,133116.1k $21.7m $21.7m 0.03% —
65 California Public Employees Retirement System 0.02% of their portfolio Sacramento, CA 113,320113.3k $21.2m $21.2m 0.02% —
66 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.12% of their portfolio DENVER, CO 111,888111.9k $20.9m $20.9m 0.12% —
67 MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio NEW YORK, NY 111,687111.7k $20.9m $20.9m 0.03% —
68 Curi Capital, LLC 0.76% of their portfolio CHICAGO, IL 108,536108.5k $20.3m $20.3m 0.76% —
69 ZEVENBERGEN CAPITAL INVESTMENTS LLC 0.57% of their portfolio EDMONDS, WA 108,235108.2k $20.3m $20.3m 0.57% —
70 NORDEA INVESTMENT MANAGEMENT AB 0.03% of their portfolio STOCKHOLM, V7 107,132107.1k $20.5m $20.5m 0.03% —
71 COMERICA BANK 0.15% of their portfolio DALLAS, TX 105,373105.4k $17.7m $17.7m 0.15% —
72 ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio Berwyn, PA 104,617104.6k $19.6m $19.6m 0.01% —
73 EATON VANCE MANAGEMENT 0.03% of their portfolio BOSTON, MA 102,218102.2k $19.1m $19.1m 0.03% —
74 ROYCE & ASSOCIATES LP 0.21% of their portfolio New York, NY 100,094100.1k $18.7m $18.7m 0.21% —
75 AWM Investment Company, Inc. 2.85% of their portfolio NEW YORK, NY 100,000100.0k $18.7m $18.7m 2.85% —
76 Iron Triangle Partners LP 3.27% of their portfolio Cos Cob, CT 100,000100.0k $18.7m $18.7m 3.27% —
77 Legal & General Group Plc 0.01% of their portfolio London, X0 94,99895.0k $17.8m $17.8m 0.01% —
78 STRS OHIO 0.08% of their portfolio COLUMBUS, OH 91,50091.5k $17.1m $17.1m 0.08% —
79 Nicholas Investment Partners, LP 1.52% of their portfolio RANCHO SANTA FE, CA 87,72287.7k $16.4m $16.4m 1.52% —
80 RAYMOND JAMES & ASSOCIATES 0.02% of their portfolio ST PETERSBURG, FL 87,44087.4k $16.4m $16.4m 0.02% —
81 NORTH STAR ASSET MANAGEMENT INC 1.08% of their portfolio NEENAH, WI 84,53684.5k $15.8m $15.8m 1.08% —
82 Atika Capital Management LLC 1.78% of their portfolio NEW YORK, NY 84,00084.0k $15.7m $15.7m 1.78% —
83 DF DENT & CO INC 0.24% of their portfolio BALTIMORE, MD 83,72383.7k $15.7m $15.7m 0.24% —
84 AMERICAN INTERNATIONAL GROUP, INC. 0.11% of their portfolio New York, NY 81,68181.7k $15.3m $15.3m 0.11% —
85 NFJ INVESTMENT GROUP, LLC 0.37% of their portfolio DALLAS, TX 75,47475.5k $14.4m $14.4m 0.37% —
86 Summit Creek Advisors LLC 1.83% of their portfolio MINNEAPOLIS, MN 71,17871.2k $13.3m $13.3m 1.83% —
87 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 70,94170.9k $13.3m $13.3m 0.00% —
88 Driehaus Capital Management LLC 0.19% of their portfolio Chicago, IL 68,73268.7k $12.9m $12.9m 0.19% —
89 Retirement Systems of Alabama 0.06% of their portfolio MONTGOMERY, AL 67,56267.6k $12.6m $12.6m 0.06% —
90 Granahan Investment Management, LLC 0.41% of their portfolio WALTHAM, MA 67,32267.3k $12.6m $12.6m 0.41% —
91 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio WEST SACRAMENTO, CA 67,30767.3k $12.6m $12.6m 0.02% —
92 Twin Tree Management, LP 0.33% of their portfolio DALLAS, TX 63,95164.0k $12.0m $12.0m 0.33% —
93 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.03% of their portfolio TALLAHASSEE, FL 63,90563.9k $12.0m $12.0m 0.03% —
94 FULLER & THALER ASSET MANAGEMENT, INC. 0.08% of their portfolio SAN MATEO, CA 62,81162.8k $11.8m $11.8m 0.08% —
95 SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.20% of their portfolio BALA CYNWYD, PA 62,22162.2k $11.6m $11.6m 0.20% —
96 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio ALBANY, NY 61,06961.1k $11.4m $11.4m 0.03% —
97 Cubist Systematic Strategies, LLC 0.08% of their portfolio STAMFORD, CT 57,67657.7k $10.8m $10.8m 0.08% —
98 Amundi 0.01% of their portfolio Paris, I0 57,05357.1k $12.6m $12.6m 0.01% —
99 Alberta Investment Management Corp 0.08% of their portfolio EDMONTON, A0 56,27456.3k $10.5m $10.5m 0.08% —
100 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio Toronto, A6 54,86254.9k $10.3m $10.3m 0.01% —