SEC Insider Transactions from SOUTHWELL DAVID P.

Last updated: 2026-03-14 11:42 UTC | Total transactions: 35

David P. Southwell sold PTC Therapeutics ($PTCT) shares once on the open market in the last year, totaling $700 thousand, with the latest sale on September 9, 2025. This ranks him 5,740th out of nearly 12,000 insiders by sale value, below the average of $8.6 million across 6.4 transactions. He made no open market purchases.

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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
Jan. 2, 2026 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found A Common Stock 4000 $0.00 20,850.0000 88,311,494 23.74% 0.00%
Jan. 2, 2026 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found A Stock Option (Right to Buy) 3475 $0.00 3,475.0000 88,311,494 9999.99% 0.00%
Sept. 9, 2025 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found S Common Stock 12000 $58.34 16,850.0000 78,151,240 41.59% 0.02%
Sept. 9, 2025 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found M Common Stock 12000 $30.86 28,850.0000 78,151,240 71.22% 0.02%
Sept. 9, 2025 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found M Stock Option (Right to Buy) 12000 $0.00 0.0000 78,151,240 100.00% 0.02%
June 18, 2025 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found A Common Stock 30000 $0.00 144,784.0000 94,807,773 26.14% 0.03%
Jan. 3, 2025 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found A Stock Option (Right to Buy) 8800 $0.00 8,800.0000 76,845,055 9999.99% 0.01%
Jan. 3, 2025 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found A Common Stock 4000 $0.00 18,500.0000 76,845,055 27.59% 0.01%
June 13, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found A Stock Option (Right to Buy) 23944 $0.00 23,944.0000 84,009,004 9999.99% 0.03%
May 2, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found G Common Stock 113124 $0.00 114,784.0000 84,009,004 49.64% 0.13%
May 2, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found G Common Stock 59716 $0.00 114,784.0000 84,009,004 34.22% 0.07%
May 8, 2024 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found G Common Stock 1650 $0.00 14,500.0000 76,496,127 10.22% 0.00%
April 12, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found S Common Stock 59716 $24.22 105,444.0000 84,009,004 36.16% 0.07%
April 12, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found S Common Stock 10284 $25.16 95,160.0000 84,009,004 9.75% 0.01%
April 15, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found M Common Stock 29624 $4.34 124,784.0000 84,009,004 31.13% 0.04%
April 15, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found S Common Stock 10000 $24.05 114,784.0000 84,009,004 8.01% 0.01%
April 12, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found M Stock Option (Right to Buy) 70000 $4.34 29,624.0000 84,009,004 70.26% 0.08%
April 15, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found M Stock Option (Right to Buy) 29624 $4.34 0.0000 84,009,004 100.00% 0.04%
April 12, 2024 ROCKET PHARMACEUTICALS, INC. $RCKT SOUTHWELL DAVID P Not found M Common Stock 70000 $4.34 165,160.0000 84,009,004 73.56% 0.08%
Feb. 15, 2024 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 74,838,292 9999.99% 0.01%
Feb. 15, 2024 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found A Common Stock 4000 $0.00 14,500.0000 74,838,292 38.10% 0.01%
April 17, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found S Common Stock 5188 $51.43 10,500.0000 73,729,284 33.07% 0.01%
April 17, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found M Stock Option (Right to Buy) 11429 $18.01 80,000.0000 73,729,284 12.50% 0.02%
April 17, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found M Common Stock 11429 $18.01 21,929.0000 73,729,284 108.85% 0.02%
April 17, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found S Common Stock 6241 $50.69 15,688.0000 73,729,284 28.46% 0.01%
March 31, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found M Stock Option (Right to Buy) 2571 $18.01 91,429.0000 71,728,634 2.74% 0.00%
March 31, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found S Common Stock 2571 $50.05 10,500.0000 71,728,634 19.67% 0.00%
March 31, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found M Common Stock 2571 $18.01 13,071.0000 71,728,634 24.49% 0.00%
March 27, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found M Common Stock 10000 $27.05 20,500.0000 71,728,634 95.24% 0.01%
March 27, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found S Common Stock 4599 $44.71 15,901.0000 71,728,634 22.43% 0.01%
March 27, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found M Stock Option (Right to Buy) 10000 $27.05 94,000.0000 71,728,634 9.62% 0.01%
March 27, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found S Common Stock 5301 $45.41 10,600.0000 71,728,634 33.34% 0.01%
March 27, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found S Common Stock 100 $46.03 10,500.0000 71,728,634 0.94% 0.00%
Jan. 5, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found A Common Stock 4000 $0.00 10,500.0000 71,728,634 61.54% 0.01%
Jan. 5, 2023 PTC THERAPEUTICS, INC. $PTCT SOUTHWELL DAVID P Not found A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 71,728,634 9999.99% 0.01%