Insider · CIK 0001841990

Flanagan W. Michael

Reports to the SEC for 2 companies · SAN DIEGO, CA

sec.gov

Transactions

Companies

Filings

CIK

0001841990

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-09-18	RNAAtrium Therapeutics, Inc.F Tax Payment	Director	FTax Payment	−22.8K sh	$8.95	−$204K	31,974
2026-02-27	RNAAtrium Therapeutics, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+20K sh	—	—	20,000
2026-02-27	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	Chief Scientific Officer	DDisposition to Issuer	−50K sh	—	—	0
2026-02-27	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	Chief Scientific Officer	DDisposition to Issuer	−88K sh	—	—	0
2026-02-27	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	Chief Scientific Officer	DDisposition to Issuer	−72K sh	—	—	0
2026-02-27	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	Chief Scientific Officer	DDisposition to Issuer	−96K sh	—	—	0
2026-02-27	RNAMAvidity Biosciences, Inc.D Disposition to Issuer	Chief Scientific Officer	DDisposition to Issuer	−150K sh	—	—	0
2026-02-27	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	Chief Scientific Officer	DDisposition to Issuer	−66.5K sh	—	—	0
2026-02-27	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)D Disposition to Issuer	Chief Scientific Officer	DDisposition to Issuer	−25K sh	—	—	0
2026-01-21	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−3,976 sh	$72.45	−$288K	87,651
2026-01-21	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−2,558 sh	$72.45	−$185K	85,093
2026-01-07	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−2,373 sh	$72.23	−$171K	91,627
2025-12-17	RNAMAvidity Biosciences, Inc.F Tax Payment	Chief Scientific Officer	FTax Payment	−13.7K sh	$71.87	−$984K	94,000
2025-12-17	RNAMAvidity Biosciences, Inc.A Award	Chief Scientific Officer	AAward	+27.5K sh	—	—	107,695
2025-09-11	RNAMAvidity Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+20K sh	$14.22	+$284K	100,195
2025-09-11	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−20K sh	$38.94	−$779K	80,195
2025-09-11	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−20K sh	—	—	76,500
2025-06-11	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−20K sh	$32.88	−$658K	80,195
2025-06-11	RNAMAvidity Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+20K sh	$14.22	+$284K	100,195
2025-06-11	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−20K sh	—	—	96,500
2025-03-20	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−11.8K sh	$31.06	−$366K	80,195
2025-03-11	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−20K sh	$30.13	−$603K	91,975
2025-03-11	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−20K sh	—	—	116,500
2025-03-11	RNAMAvidity Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+20K sh	$14.22	+$284K	111,975
2025-01-21	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−3,860 sh	$28.60	−$110K	93,787
2025-01-21	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−1,812 sh	$28.59	−$51.8K	91,975
2025-01-06	RNAMAvidity Biosciences, Inc.A Award	Chief Scientific Officer	AAward	+25K sh	—	—	97,647
2025-01-06	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)A Award	Chief Scientific Officer	AAward	+50K sh	—	—	50,000
2024-12-18	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−12.7K sh	$32.66	−$416K	72,647
2024-12-11	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−24K sh	$35.77	−$858K	85,389
2024-12-11	RNAMAvidity Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+24K sh	$22.47	+$539K	109,389
2024-12-11	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−24K sh	—	—	86,000
2024-10-01	RNAMAvidity Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+62.5K sh	$26.75	+$1.67M	147,889
2024-10-01	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−62.5K sh	$47.62	−$2.98M	85,389
2024-10-01	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−62.5K sh	—	—	25,000
2024-09-23	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−11.8K sh	$43.89	−$520K	85,389
2024-09-23	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−13.2K sh	$44.00	−$579K	72,718
2024-09-19	RNAMAvidity Biosciences, Inc.A Award	Chief Scientific Officer	AAward	+25K sh	—	—	97,718
2024-09-19	RNAMAvidity Biosciences, Inc.A Award	Chief Scientific Officer	AAward	+25K sh	—	—	85,871
2024-09-11	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−14.9K sh	$40.40	−$602K	60,871
2024-09-11	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−62.5K sh	—	—	87,500
2024-09-11	RNAMAvidity Biosciences, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	−34K sh	—	—	110,000
2024-09-11	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−62.5K sh	$40.40	−$2.53M	75,765
2024-09-11	RNAMAvidity Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+62.5K sh	$26.75	+$1.67M	138,265
2024-09-11	RNAMAvidity Biosciences, Inc.M Exercise/Conversion	Chief Scientific Officer	MExercise/Conversion	+34K sh	$22.47	+$764K	109,765
2024-09-11	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−34K sh	$40.40	−$1.37M	75,765
2024-06-18	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−10.1K sh	$39.13	−$395K	50,765
2024-06-17	RNAMAvidity Biosciences, Inc.A Award	Chief Scientific Officer	AAward	+25K sh	—	—	60,871
2024-06-17	RNAMAvidity Biosciences, Inc.A Award	Chief Scientific Officer	AAward	+25K sh	—	—	75,765
2024-01-22	RNAMAvidity Biosciences, Inc.S Sale	Chief Scientific Officer	SSale	−4,129 sh	$10.13	−$41.8K	35,871

Recent filings

Accepted (ET)
Sep 224
Flanagan W. Michael0001193125-26-397955
SEC(opens sec.gov)
Mar 24
Flanagan W. Michael0001193125-26-085919
SEC(opens sec.gov)
Feb 274
Flanagan W. Michael0001193125-26-082261
SEC(opens sec.gov)
Jan 234
Flanagan W. Michael0001599901-26-000024
SEC(opens sec.gov)
Jan 94
Flanagan W. Michael0001599901-26-000008
SEC(opens sec.gov)
Dec 194
Flanagan W. Michael0001599901-25-000223
SEC(opens sec.gov)
Sep 124
Flanagan W. Michael0001599901-25-000184
SEC(opens sec.gov)
Jun 124
Flanagan W. Michael0001599901-25-000113
SEC(opens sec.gov)

Companies

Address

C/O ATRIUM THERAPEUTICS, INC. 10578 SCIENCE CENTER DRIVE, SUITE 125

SAN DIEGO, CA, 92121