Mailing Address 41 SEYON STREET BUILDING 1, SUITE 100 WALTHAM MA 02453
Business Address 41 SEYON STREET BUILDING 1, SUITE 100 WALTHAM MA 02453 7814499560
REPLIGEN CORP CIK#: 0000730272 (see all company filings)

SIC: 2836 - BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES)
State location: MA | State of Inc.: DE | Fiscal Year End: 1231
(CF Office: 03 Life Sciences)
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Items 1 - 40  0000730272 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
ARS  Documents Annual Report to Security Holders
Acc-no: 0001193125-25-073463 (34 Act)  Size: 15 MB
2025-04-04 000-14656
25815115
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001193125-25-073456 (34 Act)  Size: 328 KB
2025-04-04 000-14656
25815068
DEF 14A  Documents   Interactive Data Other definitive proxy statements
Acc-no: 0000950170-25-051141 (34 Act)  Size: 55 MB
2025-04-04 000-14656
25814947
PRE 14A  Documents   Interactive Data Other preliminary proxy statements
Acc-no: 0000950170-25-040321 (34 Act)  Size: 31 MB
2025-03-17 000-14656
25744866
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0000950170-25-038999 (34 Act)  Size: 23 MB
2025-03-14 000-14656
25737275
NT 10-K  Documents Notification of inability to timely file Form 10-K 405, 10-K, 10-KSB 405, 10-KSB, 10-KT, or 10-KT405
Acc-no: 0001193125-25-044191 (34 Act)  Size: 28 KB
2025-03-03 000-14656
25698802
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000950170-25-023742 (34 Act)  Size: 1 MB
2025-02-20 000-14656
25643307
SCHEDULE 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000080255-25-000176 (34 Act)  Size: 7 KB
2025-02-14 005-38071
25624039
SCHEDULE 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001213900-25-013247 (34 Act)  Size: 10 KB
2025-02-13 005-38071
25618232
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-24-127846 (34 Act)  Size: 19 MB
2024-11-18 000-14656
241470444
10-Q/A  Documents   Interactive Data [Amend] Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-24-127845 (34 Act)  Size: 19 MB
2024-11-18 000-14656
241470440
10-Q/A  Documents   Interactive Data [Amend] Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-24-127844 (34 Act)  Size: 15 MB
2024-11-18 000-14656
241470435
10-K/A  Documents   Interactive Data [Amend] Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0000950170-24-127842 (34 Act)  Size: 26 MB
2024-11-18 000-14656
241470430
10-Q/A  Documents   Interactive Data [Amend] Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-24-127841 (34 Act)  Size: 18 MB
2024-11-18 000-14656
241470426
10-Q/A  Documents   Interactive Data [Amend] Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-24-127839 (34 Act)  Size: 17 MB
2024-11-18 000-14656
241470423
10-Q/A  Documents   Interactive Data [Amend] Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-24-127837 (34 Act)  Size: 14 MB
2024-11-18 000-14656
241470420
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000080255-24-001378 (34 Act)  Size: 6 KB
2024-11-14 005-38071
NT 10-Q  Documents Notification of inability to timely file Form 10-Q or 10-QSB
Acc-no: 0001193125-24-255987 (34 Act)  Size: 27 KB
2024-11-12 000-14656
241448629
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0002012383-24-004379 (34 Act)  Size: 14 KB
2024-11-12 005-38071
241445745
8-K  Documents   Interactive Data Current report, items 2.02, 7.01, and 9.01
Acc-no: 0001193125-24-255167 (34 Act)  Size: 1 MB
2024-11-12 000-14656
241443374
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0002012383-24-001881 (34 Act)  Size: 14 KB
2024-10-23 005-38071
241389890
8-K  Documents   Interactive Data Current report, items 2.02, 4.02, 7.01, and 9.01
Acc-no: 0001193125-24-221406 (34 Act)  Size: 993 KB
2024-09-18 000-14656
241307829
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0000080255-24-000877 (34 Act)  Size: 6 KB
2024-09-10 005-38071
UPLOAD  Documents [Cover]SEC-generated letter
Acc-no: 0000000000-24-009190 Size: 39 KB
2024-08-12 000-14656
CORRESP  Documents [Cover]Correspondence
Acc-no: 0001193125-24-195007 Size: 46 KB
2024-08-06
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-24-087981 (34 Act)  Size: 12 MB
2024-07-30 000-14656
241158611
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001193125-24-188277 (34 Act)  Size: 410 KB
2024-07-30 000-14656
241154422
UPLOAD  Documents [Cover]SEC-generated letter
Acc-no: 0000000000-24-008372 Size: 43 KB
2024-07-24 000-14656
8-K  Documents   Interactive Data Current report, item 8.01
Acc-no: 0001193125-24-179061 (34 Act)  Size: 150 KB
2024-07-15 000-14656
241117312
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001193125-24-161728 (34 Act)  Size: 161 KB
2024-06-14 000-14656
241045985
8-K  Documents   Interactive Data Current report, items 7.01 and 9.01
Acc-no: 0001193125-24-160292 (34 Act)  Size: 170 KB
2024-06-13 000-14656
241040007
8-K  Documents   Interactive Data Current report, item 5.07
Acc-no: 0001193125-24-141217 (34 Act)  Size: 170 KB
2024-05-17 000-14656
24957741
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001193125-24-129681 (34 Act)  Size: 21 KB
2024-05-03 000-14656
24910552
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-24-051310 (34 Act)  Size: 10 MB
2024-05-01 000-14656
24903364
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001193125-24-126349 (34 Act)  Size: 340 KB
2024-05-01 000-14656
24900086
ARS  Documents Annual Report to Security Holders
Acc-no: 0001193125-24-083464 (34 Act)  Size: 4 MB
2024-04-01 000-14656
24809934
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001193125-24-083416 (34 Act)  Size: 149 KB
2024-04-01 000-14656
24809621
DEF 14A  Documents   Interactive Data Other definitive proxy statements
Acc-no: 0001193125-24-083397 (34 Act)  Size: 11 MB
2024-04-01 000-14656
24809528
8-K  Documents   Interactive Data Current report, items 5.02, 7.01, and 9.01
Acc-no: 0001193125-24-070768 (34 Act)  Size: 175 KB
2024-03-19 000-14656
24761103
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0000950170-24-018809 (34 Act)  Size: 19 MB
2024-02-22 000-14656
24665243