Insider · CIK 0001849642

Bylund James

Reports to the SEC for 1 company · WALTHAM, MA

sec.gov

Transactions

Companies

Filings

CIK

0001849642

Forms 4 and 5

Insider transactions

43 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-03-05	RGENREPLIGEN CORP · Stock Option (Right to Buy)A Award	Chief Operating Officer	AAward	+8,315 sh	—	—	8,315
2026-03-05	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+7,751 sh	—	—	25,423
2026-03-04	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+125 sh	—	—	17,734
2026-03-04	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−62 sh	$125.84	−$7,802.08	17,672
2026-03-02	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−2,433 sh	$124.97	−$304K	17,609
2026-02-27	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−1,478 sh	$128.73	−$190K	20,042
2025-11-18	RGENREPLIGEN CORPS Sale	Chief Operating Officer	SSale	−2,191 sh	$151.21	−$331K	21,520
2025-04-01	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−454 sh	$128.50	−$58.3K	23,711
2025-03-13	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−175 sh	$142.44	−$24.9K	24,165
2025-03-13	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+381 sh	—	—	24,340
2025-03-03	RGENREPLIGEN CORP · Stock Option (Right to Buy)A Award	Chief Operating Officer	AAward	+6,056 sh	—	—	6,056
2025-03-03	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+6,435 sh	—	—	25,198
2025-03-03	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−1,239 sh	$155.38	−$193K	23,959
2025-02-27	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−1,285 sh	$156.54	−$201K	18,763
2025-02-24	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−543 sh	$164.74	−$89.5K	20,048
2024-04-02	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−444 sh	$182.95	−$81.2K	20,591
2024-03-07	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−1,206 sh	$195.72	−$236K	21,035
2024-03-05	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−22 sh	$195.52	−$4,301.44	22,241
2024-03-04	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−197 sh	$193.99	−$38.2K	22,263
2024-03-01	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+50 sh	—	—	22,460
2024-03-01	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−820 sh	$191.79	−$157K	22,410
2024-02-29	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+404 sh	—	—	23,230
2024-02-27	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+8,691 sh	—	—	22,826
2024-02-27	RGENREPLIGEN CORP · Stock Option (Right to Buy)A Award	Chief Operating Officer	AAward	+8,632 sh	—	—	8,632
2024-02-23	RGENREPLIGEN CORPS Sale	Chief Operating Officer	SSale	−4,373 sh	$198.08	−$866K	14,135
2024-02-23	RGENREPLIGEN CORP · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+940 sh	—	—	4,000
2024-02-23	RGENREPLIGEN CORPM Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+940 sh	$94.33	+$88.7K	18,508
2023-04-04	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−334 sh	$163.45	−$54.6K	17,568
2023-03-03	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+625 sh	—	—	18,112
2023-03-03	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−210 sh	$188.00	−$39.5K	17,902
2023-03-02	RGENREPLIGEN CORP · Stock Option (Right to Buy)A Award	Chief Operating Officer	AAward	+8,644 sh	—	—	8,644
2023-03-02	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+8,348 sh	—	—	17,487
2023-02-28	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−594 sh	$173.44	−$103K	9,139
2022-08-03	RGENREPLIGEN CORPM Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+2,000 sh	$94.33	+$189K	11,733
2022-08-03	RGENREPLIGEN CORP · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−2,000 sh	—	—	8,000
2022-08-03	RGENREPLIGEN CORPS Sale	Chief Operating Officer	SSale	−2,000 sh	$240.40	−$481K	9,733
2022-04-01	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−335 sh	$188.02	−$63K	9,733
2022-02-24	RGENREPLIGEN CORP · Stock Option (Right to Buy)A Award	Chief Operating Officer	AAward	+4,312 sh	—	—	4,312
2022-02-24	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−188 sh	$189.21	−$35.6K	10,068
2022-02-24	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+3,366 sh	—	—	10,256
2022-02-17	RGENREPLIGEN CORPA Award	Chief Operating Officer	AAward	+900 sh	—	—	7,224
2022-02-17	RGENREPLIGEN CORPF Tax Payment	Chief Operating Officer	FTax Payment	−334 sh	$182.42	−$60.9K	6,890
2021-04-06	RGENREPLIGEN CORPS Sale	Chief Operating Officer	SSale	−360 sh	$204.25	−$73.5K	6,324

Recent filings

Accepted (ET)
Mar 234
Bylund James0001193125-26-119034
SEC(opens sec.gov)
Mar 54
Bylund James0001193125-26-093379
SEC(opens sec.gov)
Mar 34
Bylund James0001193125-26-087669
SEC(opens sec.gov)
Nov 194
Bylund James0001193125-25-288160
SEC(opens sec.gov)
Apr 24
Bylund James0000950170-25-048942
SEC(opens sec.gov)
Mar 204
Bylund James0000950170-25-042471
SEC(opens sec.gov)
Mar 44
Bylund James0000950170-25-031569
SEC(opens sec.gov)
Feb 284
Bylund James0000950170-25-030066
SEC(opens sec.gov)
Feb 254
Bylund James0000950170-25-026175
SEC(opens sec.gov)
Apr 44
Bylund James0000950170-24-041891
SEC(opens sec.gov)
Mar 74
Bylund James0000950170-24-027996
SEC(opens sec.gov)
Mar 64
Bylund James0000950170-24-027504
SEC(opens sec.gov)
Mar 54
Bylund James0000950170-24-026715
SEC(opens sec.gov)

Companies

REPLIGEN CORPChief Operating OfficerRGEN

Address

C/O REPLIGEN CORPORATION 41 SEYON ST., BLDG 1, STE 100

WALTHAM, MA, 02453