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Southwell David P insider trades
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Southwell David P insider trades

Southwell David P has filed 24 Form 4s with the SEC that we hold, for Ptc Therapeutics, INC. (PTCT) (Director), Rocket Pharmaceuticals, INC. (RCKT) (Director) and TScan Therapeutics, Inc. (TCRX) (Chief Executive Officer, Director). Across all of them we count 3 purchases worth $185.8K and 10 sales worth $3.8M reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a sale of 59,716 shares of Rocket Pharmaceuticals, INC. worth $1.4M, dated 2024-04-12. The first filing on our record is dated 2021-09-09 and the latest 2026-08-05.

Ptc Therapeutics, INC. (PTCT)

Director · 10 filings · 7 purchases and sales
Trade dateCodeSharesValue as filedFiled
2023-03-27S, sale reported on Form 44,599$205.6K2023-03-29
2023-03-27S, sale reported on Form 4100$4.6K2023-03-29
2023-03-27S, sale reported on Form 45,301$240.7K2023-03-29
2023-03-31S, sale reported on Form 42,571$128.7K2023-04-04
2023-04-17S, sale reported on Form 46,241$316.4K2023-04-19
2023-04-17S, sale reported on Form 45,188$266.8K2023-04-19
2025-09-09S, sale reported on Form 412,000$700.1K2025-09-11

Rocket Pharmaceuticals, INC. (RCKT)

Director · 8 filings · 3 purchases and sales
Trade dateCodeSharesValue as filedFiled
2024-04-12S, sale reported on Form 459,716$1.4M2024-04-16
2024-04-12S, sale reported on Form 410,284$258.7K2024-04-16
2024-04-15S, sale reported on Form 410,000$240.5K2024-04-16

TScan Therapeutics, Inc. (TCRX)

Chief Executive Officer, Director · 6 filings · 3 purchases and sales
Trade dateCodeSharesValue as filedFiled
2021-09-08P, purchase reported on Form 411,000$96.0K2021-09-09
2022-05-18P, purchase reported on Form 415,000$54.3K2022-05-20
2022-05-18P, purchase reported on Form 410,000$35.5K2022-05-20
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1251553) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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