Form 4 Tracker
John D Quisel

Director; Director, Chief Executive Officer · 4 filings · Latest: Jun 18, 2026

Disc Medicine, Inc.
Gossamer Bio, Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
IRON
John D QuiselDirector, Chief Executive OfficerJun 18, 2026
Sale
$70.2134,000$2.4M226,064
IRON
John D QuiselDirector, Chief Executive OfficerJun 18, 2026
Option Exercise
$9.8634,000$335.2K260,064
IRON
JOHN QUISELJun 18, 2026
Proposed Sale
$70.2134,000$2.4M
IRON
John D QuiselDirector, Chief Executive OfficerFeb 17, 2026
Sale
$62.8613,264$833.8K226,064
IRON
Quisel John DFeb 17, 2026
Proposed Sale
$55.9513,264$742.1K
IRON
JOHN QUISELDec 11, 2025
Proposed Sale
$92.8540,000$3.7M
IRON
JOHN QUISELJul 9, 2025
Proposed Sale
$52.9734,800$1.8M
IRON
JOHN QUISELJul 3, 2025
Proposed Sale
$53.175,200$276.5K
IRON
JOHN QUISELDec 30, 2024
Proposed Sale
$64.1213,012$834.3K
IRON
JOHN QUISELDec 23, 2024
Proposed Sale
$64.5019,820$1.3M
IRON
JOHN QUISELDec 16, 2024
Proposed Sale
$64.8912,791$830.0K