Insider · CIK 0001951849

Yu Jonathan Yen-Wen

Reports to the SEC for 1 company · WATERTOWN, MA

sec.gov

Transactions

Companies

Filings

CIK

0001951849

Forms 4 and 5

Insider transactions

39 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-08-25	IRONDisc Medicine, Inc.M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+8,796 sh	$13.50	+$119K	63,120
2026-08-25	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−8,796 sh	$83.12	−$731K	54,324
2026-08-25	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−8,796 sh	—	—	13,847
2026-08-24	IRONDisc Medicine, Inc.M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+300 sh	$13.50	+$4,050	54,624
2026-08-24	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−300 sh	$82.53	−$24.8K	54,324
2026-08-24	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−300 sh	—	—	22,643
2026-08-12	IRONDisc Medicine, Inc.M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+804 sh	$13.50	+$10.9K	55,128
2026-08-12	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−804 sh	$82.64	−$66.4K	54,324
2026-08-12	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−804 sh	—	—	22,943
2026-07-07	IRONDisc Medicine, Inc.M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+100 sh	$13.50	+$1,350	54,424
2026-07-07	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−100 sh	$82.50	−$8,250	54,324
2026-07-07	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−100 sh	—	—	23,747
2026-06-26	IRONDisc Medicine, Inc.M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+300 sh	$13.50	+$4,050	54,624
2026-06-26	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−300 sh	$72.50	−$21.8K	54,324
2026-06-26	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−300 sh	—	—	23,847
2026-06-22	IRONDisc Medicine, Inc.M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+9,700 sh	$13.50	+$131K	64,024
2026-06-22	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−9,700 sh	$72.66	−$705K	54,324
2026-06-22	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−9,700 sh	—	—	24,147
2026-06-16	IRONDisc Medicine, Inc.M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+5,261 sh	$9.86	+$51.9K	59,585
2026-06-16	IRONDisc Medicine, Inc.M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+13.4K sh	$9.86	+$132K	72,936
2026-06-16	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−11.7K sh	$68.76	−$801K	61,285
2026-06-16	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−6,961 sh	$69.92	−$487K	54,324
2026-06-16	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−5,261 sh	—	—	1,753
2026-06-16	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−13.4K sh	—	—	31,951
2026-02-17	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−3,231 sh	$62.86	−$203K	54,324
2026-02-10	IRONDisc Medicine, Inc.A Award	Chief Operating Officer	AAward	+17K sh	—	—	57,555
2026-02-10	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)A Award	Chief Operating Officer	AAward	+25.5K sh	—	—	25,500
2025-11-11	IRONDisc Medicine, Inc.M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	+30K sh	$2.65	+$79.5K	70,555
2025-11-11	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−8,015 sh	$83.15	−$666K	62,540
2025-11-11	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−4,585 sh	$83.99	−$385K	57,955
2025-11-11	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−9,360 sh	$85.33	−$799K	48,595
2025-11-11	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−8,040 sh	$85.91	−$691K	40,555
2025-11-11	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Chief Operating Officer	MExercise/Conversion	−30K sh	—	—	7,941
2025-02-18	IRONDisc Medicine, Inc.S Sale	Chief Operating Officer	SSale	−1,610 sh	$54.58	−$87.9K	40,555
2025-02-10	IRONDisc Medicine, Inc.A Award	Chief Operating Officer	AAward	+24K sh	—	—	42,165
2025-02-10	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)A Award	Chief Operating Officer	AAward	+36K sh	—	—	36,000
2024-01-10	IRONDisc Medicine, Inc.A Award	Chief Operating Officer	AAward	+18.2K sh	—	—	18,165
2024-01-10	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)A Award	Chief Operating Officer	AAward	+27.3K sh	—	—	27,250
2022-12-29	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)A Award	Chief Operating Officer	AAward	+33.8K sh	—	—	33,847

Recent filings

Accepted (ET)
Aug 264
Yu Jonathan Yen-Wen0001193125-26-369179
SEC(opens sec.gov)
Aug 144
Yu Jonathan Yen-Wen0001193125-26-352823
SEC(opens sec.gov)
Jul 94
Yu Jonathan Yen-Wen0001193125-26-299954
SEC(opens sec.gov)
Jun 304
Yu Jonathan Yen-Wen0001193125-26-290891
SEC(opens sec.gov)
Jun 244
Yu Jonathan Yen-Wen0001193125-26-281519
SEC(opens sec.gov)
Jun 184
Yu Jonathan Yen-Wen0001193125-26-275996
SEC(opens sec.gov)

Companies

Disc Medicine, Inc.Chief Operating OfficerIRON

Address

C/O DISC MEDICINE, INC. 321 ARSENAL STREET, SUITE 101

WATERTOWN, MA, 02472