YU JONATHAN YEN-WEN

PrivateCIK: 1951849
Location

WATERTOWN, MA

YU JONATHAN YEN-WEN (Chief Operating Officer) sold 25.5% of their position (18.61K shares) of DISC MEDICINE, INC. on the open market

Open‑market sale worth $1.29M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderYU JONATHAN YEN-WENCIK 1951849
IssuerDISC MEDICINE, INC.CIK 1816736
Officer· Chief Operating Officer
Since Feb 2026
-18.61K
Net shares
Net seller
$1.29M
Total sold
2
Open market trades
0B · 2S
6
Total transactions
18.61K acquired · 37.22K disposed
Non-Derivative Transactions4

Common Stock

Direct
M · Option Exercise

Shares

+5.26K

Price / share

$9.86

Trade value

$51.87K

% of position

9.7%
6/16/2026
54.32K59.59K

Common Stock

Direct
M · Option Exercise

Shares

+13.35K

Price / share

$9.86

Trade value

$131.64K

% of position

22.4%
6/16/2026
59.59K72.94K

Common Stock

Direct
S · Sale

Shares

11.65K

Price / share

$68.76

Trade value

$801.10K

% of position

16.0%
6/16/2026
72.94K61.28K

Common Stock

Direct
S · Sale

Shares

6.96K

Price / share

$69.92

Trade value

$486.70K

% of position

11.4%
6/16/2026
61.28K54.32K
Total

Net shares

+0.00

Net value

-$1.10M

Derivative Transactions2

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

5.26K shares

Shares

5.26K

Strike price

9.86

Held after

1.75K

Exercisable

6/16/2026

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

13.35K shares

Shares

13.35K

Strike price

9.86

Held after

31.95K

Exercisable

6/16/2026
YU JONATHAN YEN-WEN — Insider Transaction (Form 4) Filed Jun 18, 2026 | Finecho