Jonathan Yen-Wen Yu

CIK: 0001951849

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)13 (56.5%)

Position reduction

Option Exercises (M)8 (34.8%)

Derivative conversions

Awards (A)2 (8.7%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

IRON

Disc Medicine, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (23 total)

IRON
Disc Medicine, Inc.
Aug 25, 2026
Sale(S)
Direct
8.8K shares at avg. $83.12$731K
IRON
Disc Medicine, Inc.
Aug 25, 2026
Exercise(M)
Direct
8.8K shares at avg. $13.50$119K
IRON
Disc Medicine, Inc.
Aug 24, 2026
Sale(S)
Direct
300 shares at avg. $82.53$25K
IRON
Disc Medicine, Inc.
Aug 24, 2026
Exercise(M)
Direct
300 shares at avg. $13.50$4K
IRON
Disc Medicine, Inc.
Aug 12, 2026
Exercise(M)
Direct
804 shares at avg. $13.50$11K
IRON
Disc Medicine, Inc.
Aug 12, 2026
Sale(S)
Direct
804 shares at avg. $82.64$66K
IRON
Disc Medicine, Inc.
Jul 7, 2026
Sale(S)
Direct
100 shares at avg. $82.50$8K
IRON
Disc Medicine, Inc.
Jul 7, 2026
Exercise(M)
Direct
100 shares at avg. $13.50$1K
IRON
Disc Medicine, Inc.
Jun 22, 2026
Exercise(M)
Direct
9.7K shares at avg. $13.50$131K
IRON
Disc Medicine, Inc.
Jun 22, 2026
Sale(S)
Direct
9.7K shares at avg. $72.66$705K
IRON
Disc Medicine, Inc.
Jun 16, 2026
Sale(S)
Direct
7K shares at avg. $69.92$487K
IRON
Disc Medicine, Inc.
Jun 16, 2026
Exercise(M)
Direct
13.4K shares at avg. $9.86$132K
IRON
Disc Medicine, Inc.
Jun 16, 2026
Exercise(M)
Direct
5.3K shares at avg. $9.86$52K
IRON
Disc Medicine, Inc.
Jun 16, 2026
Sale(S)
Direct
11.7K shares at avg. $68.76$801K
IRON
Disc Medicine, Inc.
Feb 17, 2026
Sale(S)
Direct
3.2K shares at avg. $62.86$203K
IRON
Disc Medicine, Inc.
Feb 10, 2026
Award(A)
Direct
17K shares-
IRON
Disc Medicine, Inc.
Nov 11, 2025
Sale(S)
Direct
4.6K shares at avg. $83.99$385K
IRON
Disc Medicine, Inc.
Nov 11, 2025
Sale(S)
Direct
8K shares at avg. $85.91$691K
IRON
Disc Medicine, Inc.
Nov 11, 2025
Sale(S)
Direct
9.4K shares at avg. $85.33$799K
IRON
Disc Medicine, Inc.
Nov 11, 2025
Sale(S)
Direct
8K shares at avg. $83.15$666K
IRON
Disc Medicine, Inc.
Nov 11, 2025
Exercise(M)
Direct
30K shares at avg. $2.65$80K
IRON
Disc Medicine, Inc.
Feb 18, 2025
Sale(S)
Direct
1.6K shares at avg. $54.58$88K
IRON
Disc Medicine, Inc.
Feb 10, 2025
Award(A)
Direct
24K shares-

		Type	Shares	Price		Ownership
Aug 25, 2026	IRON Disc Medicine, Inc.	Sale(S)	8,796	$83.12	$731,092	Direct
Aug 25, 2026	IRON Disc Medicine, Inc.	Exercise(M)	8,796	$13.50	$118,746	Direct
Aug 24, 2026	IRON Disc Medicine, Inc.	Sale(S)	300	$82.53	$24,760	Direct
Aug 24, 2026	IRON Disc Medicine, Inc.	Exercise(M)	300	$13.50	$4,050	Direct
Aug 12, 2026	IRON Disc Medicine, Inc.	Exercise(M)	804	$13.50	$10,854	Direct
Aug 12, 2026	IRON Disc Medicine, Inc.	Sale(S)	804	$82.64	$66,445	Direct
Jul 7, 2026	IRON Disc Medicine, Inc.	Sale(S)	100	$82.50	$8,250	Direct
Jul 7, 2026	IRON Disc Medicine, Inc.	Exercise(M)	100	$13.50	$1,350	Direct
Jun 22, 2026	IRON Disc Medicine, Inc.	Exercise(M)	9,700	$13.50	$130,950	Direct
Jun 22, 2026	IRON Disc Medicine, Inc.	Sale(S)	9,700	$72.66	$704,795	Direct
Jun 16, 2026	IRON Disc Medicine, Inc.	Sale(S)	6,961	$69.92	$486,699	Direct
Jun 16, 2026	IRON Disc Medicine, Inc.	Exercise(M)	13,351	$9.86	$131,641	Direct
Jun 16, 2026	IRON Disc Medicine, Inc.	Exercise(M)	5,261	$9.86	$51,873	Direct
Jun 16, 2026	IRON Disc Medicine, Inc.	Sale(S)	11,651	$68.76	$801,102	Direct
Feb 17, 2026	IRON Disc Medicine, Inc.	Sale(S)	3,231	$62.86	$203,101	Direct
Feb 10, 2026	IRON Disc Medicine, Inc.	Award(A)	17,000	-	$0	Direct
Nov 11, 2025	IRON Disc Medicine, Inc.	Sale(S)	4,585	$83.99	$385,084	Direct
Nov 11, 2025	IRON Disc Medicine, Inc.	Sale(S)	8,040	$85.91	$690,740	Direct
Nov 11, 2025	IRON Disc Medicine, Inc.	Sale(S)	9,360	$85.33	$798,690	Direct
Nov 11, 2025	IRON Disc Medicine, Inc.	Sale(S)	8,015	$83.15	$666,410	Direct
Nov 11, 2025	IRON Disc Medicine, Inc.	Exercise(M)	30,000	$2.65	$79,500	Direct
Feb 18, 2025	IRON Disc Medicine, Inc.	Sale(S)	1,610	$54.58	$87,874	Direct
Feb 10, 2025	IRON Disc Medicine, Inc.	Award(A)	24,000	-	-	Direct

1-23 of 23 transactions

About Yu Jonathan Yen-Wen

Yu Jonathan Yen-Wen (SEC CIK 0001951849) files insider reports with the SEC as Chief Operating Officer of Disc Medicine, Inc. (IRON).

Signal8 holds 10 ownership filings by Yu Jonathan Yen-Wen, all Form 4s, filed between Feb 12, 2025 and Aug 26, 2026. Those filings report 23 transactions, from Feb 10, 2025 to Aug 25, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Yu Jonathan Yen-Wen's filings is in WATERTOWN, MA.

Recent filings by Yu Jonathan Yen-Wen

Aug 25, 2026: Open-market sale of IRON shares (Form 4, code S).
Aug 25, 2026: Option exercise of IRON shares (Form 4, code M).
Aug 24, 2026: Open-market sale of IRON shares (Form 4, code S).
Aug 24, 2026: Option exercise of IRON shares (Form 4, code M).
Aug 12, 2026: Option exercise of IRON shares (Form 4, code M).

Other insiders filing for Disc Medicine, Inc. (IRON)

Bitterman Kevin, Director
Quisel John D, Chief Executive Officer
Khara Rahul, Chief Legal Officer
White William Richard, Director
Ratcliffe Liam, Director
Nicholson Donald William, Director

How to read Form 4 transaction codes