SEC Insider Transactions from MCDONNELL MICHAEL R.

Last updated: 2026-03-14 11:50 UTC | Total transactions: 45

Michael R. McDonnell sold Merit Medical Systems Inc. ($MMSI) shares on the open market twice in the last year, totaling about $330 thousand. His most recent sale occurred on June 2, 2025. These sales rank 7,365th among 11,678 individual insiders, far below the average of $8.6 million per seller and 6.4 transactions. McDonnell made no open market purchases in this period.

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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
Feb. 13, 2026 BAXTER INTERNATIONAL INC $BAX McDonnell Michael R. Director A Common Stock, $1 par value 1811 $0.00 1,811.0000 683,000,000 9999.99% 0.00%
June 2, 2025 MERIT MEDICAL SYSTEMS INC $MMSI McDonnell Michael R. Not found S Common Stock, No Par Value 1750 $94.51 6,395.0000 61,278,000 21.49% 0.00%
May 30, 2025 MERIT MEDICAL SYSTEMS INC $MMSI McDonnell Michael R. Not found S Common Stock, No Par Value 1750 $94.30 8,145.0000 61,278,000 17.69% 0.00%
May 15, 2025 MERIT MEDICAL SYSTEMS INC $MMSI MCDONNELL MICHAEL R Not found A Common Stock, No Par Value 2152 $0.00 9,895.0000 61,278,000 27.79% 0.00%
Feb. 10, 2025 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 3257 $0.00 0.0000 169,500,000 100.00% 0.00%
Feb. 10, 2025 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 1371 $142.54 24,341.0000 169,500,000 5.33% 0.00%
Feb. 10, 2025 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 3257 $0.00 25,712.0000 169,500,000 14.50% 0.00%
Feb. 7, 2025 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 2216 $0.00 23,171.0000 169,500,000 10.58% 0.00%
Feb. 7, 2025 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 716 $141.35 22,455.0000 169,500,000 3.09% 0.00%
Feb. 7, 2025 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 2335 $0.00 2,335.0000 169,500,000 50.00% 0.00%
Feb. 7, 2025 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 2216 $0.00 4,434.0000 169,500,000 33.32% 0.00%
Feb. 7, 2025 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 2335 $0.00 21,741.0000 169,500,000 12.03% 0.00%
Feb. 7, 2025 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 786 $141.35 20,955.0000 169,500,000 3.62% 0.00%
May 16, 2024 MERIT MEDICAL SYSTEMS INC $MMSI MCDONNELL MICHAEL R Not found A Common Stock, No Par Value 2431 $0.00 7,743.0000 58,567,000 45.76% 0.00%
Feb. 16, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 2337 $219.08 18,355.0000 168,700,000 11.29% 0.00%
Feb. 16, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 2152 $0.00 20,507.0000 168,700,000 11.72% 0.00%
Feb. 16, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 1101 $219.08 19,406.0000 168,700,000 5.37% 0.00%
Feb. 16, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 4568 $0.00 20,692.0000 168,700,000 28.33% 0.00%
Feb. 16, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 2152 $0.00 2,684.0000 168,700,000 44.50% 0.00%
Feb. 16, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer J Restricted Stock Unit 2684 $0.00 0.0000 168,700,000 100.00% 0.00%
Feb. 16, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Performance Stock Unit 4568 $0.00 0.0000 168,700,000 100.00% 0.00%
Feb. 9, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 3257 $0.00 3,257.0000 168,700,000 50.00% 0.00%
Feb. 9, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 3257 $0.00 17,555.0000 168,700,000 22.78% 0.00%
Feb. 9, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 1431 $240.98 16,124.0000 168,700,000 8.15% 0.00%
Feb. 8, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 765 $240.30 14,298.0000 168,700,000 5.08% 0.00%
Feb. 7, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer A Restricted Stock Unit 6650 $0.00 6,650.0000 168,700,000 9999.99% 0.00%
Feb. 8, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 2335 $0.00 4,670.0000 168,700,000 33.33% 0.00%
Feb. 8, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 2335 $0.00 15,063.0000 168,700,000 18.35% 0.00%
Jan. 29, 2024 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer A Performance Stock Unit 4568 $0.00 4,568.0000 168,700,000 9999.99% 0.00%
Sept. 1, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 1372 $267.17 11,457.0000 167,900,000 10.69% 0.00%
Sept. 1, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 2603 $0.00 14,060.0000 167,900,000 22.72% 0.00%
Sept. 1, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 1332 $267.17 12,728.0000 167,900,000 9.47% 0.00%
Sept. 1, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 2682 $0.00 0.0000 167,900,000 100.00% 0.00%
Sept. 1, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 2603 $0.00 2,763.0000 167,900,000 48.51% 0.00%
Sept. 1, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer J Restricted Stock Unit 2763 $0.00 0.0000 167,900,000 100.00% 0.00%
Sept. 1, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 2682 $0.00 12,829.0000 167,900,000 26.43% 0.00%
May 18, 2023 MERIT MEDICAL SYSTEMS INC $MMSI MCDONNELL MICHAEL R Not found A Common Stock, No Par Value 2262 $0.00 5,312.0000 58,183,000 74.16% 0.00%
Feb. 17, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 2561 $0.00 7,107.0000 167,900,000 26.49% 0.00%
Feb. 17, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer J Restricted Stock Unit 2271 $0.00 4,836.0000 167,900,000 31.95% 0.00%
Feb. 17, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 1310 $278.38 7,586.0000 167,900,000 14.73% 0.00%
Feb. 17, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 2561 $0.00 10,147.0000 167,900,000 33.76% 0.00%
Feb. 10, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Restricted Stock Unit 3256 $0.00 6,514.0000 167,900,000 33.33% 0.00%
Feb. 10, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer M Common Stock 3256 $0.00 10,001.0000 167,900,000 48.27% 0.00%
Feb. 10, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer F Common Stock 1105 $286.30 8,896.0000 167,900,000 11.05% 0.00%
Feb. 8, 2023 BIOGEN INC. $BIIB MCDONNELL MICHAEL R EVP, Chief Financial Officer A Restricted Stock Unit 7005 $0.00 7,005.0000 167,900,000 9999.99% 0.00%