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Insider Profile · SEC Form 4 Activity · Trailing 90 Days

Quisel John D

Over the trailing 90 days, Quisel John D (Other at Disc Medicine, Inc.) traded $5.5M of stock (net selling $4.2M) across 2 companies, per 13 SEC Form 4 transactions.

Role
Other
Companies
IRON GOSS
Window
Trailing 90 days · 13 transactions · CIK 1586788
Net activity
−$4.2M ($688K bought · $4.9M sold)

By Company (Trailing 90 Days)

SymbolCompanyTxnsBoughtSoldNet
IRONDisc Medicine, Inc.12$688K$4.9M−$4.2M
GOSSGossamer Bio, Inc.1$0

Transactions (13)

DateSymbolTypeSharesValueDescription
2026-07-13IRONSell9.7K$721KOpen market or private sale
2026-07-13IRONSell16.9K$1.3MOpen market or private sale
2026-07-13IRONSell7.4K$0Exercise or conversion of derivative security
2026-07-13IRONBuy7.4K$100KExercise or conversion of derivative security
2026-07-13IRONSell6.4K$487KOpen market or private sale
2026-07-13IRONBuy25.6K$252KExercise or conversion of derivative security
2026-07-13IRONSell25.6K$0Exercise or conversion of derivative security
2026-06-18IRONSell22.9K$1.6MOpen market or private sale
2026-06-18IRONBuy34.0K$335KExercise or conversion of derivative security
2026-06-18IRONSell1.6K$111KOpen market or private sale
2026-06-18IRONSell9.5K$673KOpen market or private sale
2026-06-18IRONSell34.0K$0Exercise or conversion of derivative security
2026-06-04GOSSBuy115.0K$0Grant, award or other acquisition

Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.

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