QUISEL JOHN D

PrivateCIK: 1586788
Location

CAMBRIDGE, MA

QUISEL JOHN D (Chief Executive Officer) sold 13.1% of their position (34K shares) of DISC MEDICINE, INC. on the open market

Open‑market sale worth $2.39M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales
InsiderQUISEL JOHN DCIK 1586788
IssuerDISC MEDICINE, INC.CIK 1816736
DirectorOfficer· Chief Executive Officer
Since Feb 2026
-34K
Net shares
Net seller
$2.39M
Total sold
3
Open market trades
0B · 3S
5
Total transactions
34K acquired · 68K disposed
Non-Derivative Transactions4

Common Stock

Direct
M · Option Exercise

Shares

+34K

Price / share

$9.86

Trade value

$335.24K

% of position

15.0%
6/18/2026
226.06K260.06K

Common Stock

Direct
S · Sale

Shares

22.93K

Price / share

$69.92

Trade value

$1.60M

% of position

8.8%
6/18/2026
260.06K237.14K

Common Stock

Direct
S · Sale

Shares

9.52K

Price / share

$70.70

Trade value

$673.21K

% of position

4.0%
6/18/2026
237.14K227.62K

Common Stock

Direct
S · Sale

Shares

1.55K

Price / share

$71.61

Trade value

$111.07K

% of position

0.7%
6/18/2026
227.62K226.06K
Total

Net shares

+0.00

Net value

-$2.05M

Derivative Transactions1

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

34K shares

Shares

34K

Strike price

9.86

Held after

41.38K

Exercisable

6/18/2026
QUISEL JOHN D — Insider Transaction (Form 4) Filed Jun 23, 2026 | Finecho