SEC Insider Transactions from MacDonald Brian Richard.

Last updated: 2026-03-14 11:35 UTC | Total transactions: 11

MacDonald Brian Richard has filed 11 insider transactions across 1 company since December 2022.

Most recent transaction: a sale of 2247 shares of Disc Medicine, Inc. ($IRON) on June 28, 2023.

Activity breakdown: 0 open-market purchases and 10 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
June 28, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 2247 $49.24 28,441.0000 0 7.32% 0.00%
June 28, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 1900 $50.38 26,541.0000 0 6.68% 0.00%
June 28, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 953 $50.80 25,588.0000 0 3.59% 0.00%
June 29, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 736 $44.37 24,852.0000 0 2.88% 0.00%
June 29, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 2230 $45.49 22,622.0000 0 8.97% 0.00%
June 29, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 1934 $46.51 20,688.0000 0 8.55% 0.00%
June 29, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 200 $47.24 20,488.0000 0 0.97% 0.00%
June 30, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 2923 $44.85 17,565.0000 0 14.27% 0.00%
June 30, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 1401 $45.45 16,164.0000 0 7.98% 0.00%
June 30, 2023 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer S Common Stock 600 $46.76 15,564.0000 0 4.01% 0.00%
Dec. 29, 2022 Disc Medicine, Inc. $IRON MacDonald Brian Richard Chief Innovation Officer A Stock Option (Right to Buy) 33847 $0.00 33,847.0000 0 9999.99% 0.00%