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Insider · CIK 0001251553

Southwell David P

CIK 0001251553 Name as filed on the most recent filing

Filed as Southwell David P (33)

313 transaction lines · from 33 filings · filed 2004-05-12 to 2025-09-11 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-22 05:23 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

313 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-22 05:23 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2025-09-09 S, Open-market sale PTC Therapeutics, Inc.PTCT 700,080, disposed Open Form 4 filing 0001415889-25-024280
2024-04-15 S, Open-market sale Rocket Pharmaceuticals, Inc.RCKT 240,520, disposed Open Form 4 filing 0001140361-24-020127
2024-04-12 S, Open-market sale Rocket Pharmaceuticals, Inc.RCKT 2 lines 1,705,265, disposed Open Form 4 filing 0001140361-24-020127
2023-04-17 S, Open-market sale PTC Therapeutics, Inc.PTCT 2 lines 583,187, disposed Open Form 4 filing 0001415889-23-006696
2023-03-31 S, Open-market sale PTC Therapeutics, Inc.PTCT 128,672, disposed Open Form 4 filing 0001415889-23-005991
2023-03-27 S, Open-market sale PTC Therapeutics, Inc.PTCT 3 lines 450,956, disposed Open Form 4 filing 0001415889-23-005565
2022-05-18 P, Open-market purchase TScan Therapeutics, Inc.TCRX 2 lines 89,821, acquired Open Form 4 filing 0000899243-22-019018
2021-09-08 P, Open-market purchase TScan Therapeutics, Inc.TCRX 96,066, acquired Open Form 4 filing 0000899243-21-035442
2020-10-16 S, Open-market sale PTC Therapeutics, Inc.PTCT 4 lines 1,391,544, disposed Open Form 4 filing 0001179110-20-010602
2018-12-13 S, Open-market sale Rocket Pharmaceuticals, Inc.RCKT 588,886, disposed Open Form 4 filing 0001140361-18-045226
2018-12-07 S, Open-market sale Rocket Pharmaceuticals, Inc.RCKT 73,402, disposed Open Form 4 filing 0001140361-18-044850
2018-12-06 S, Open-market sale Rocket Pharmaceuticals, Inc.RCKT 800,056, disposed Open Form 4 filing 0001140361-18-044850
2017-01-06 P, Open-market purchase Inotek Pharmaceuticals CorpITEK 105,000, acquired Open Form 4 filing 0000899243-17-000861
2015-07-06 S, Open-market sale PTC Therapeutics, Inc.PTCT 2 lines 1,121,694, disposed Open Form 4 filing 0001179110-15-010946
2015-03-23 S, Open-market sale PTC Therapeutics, Inc.PTCT 2 lines 159,957, disposed Open Form 4 filing 0001179110-15-005346
2014-03-21 S, Open-market sale PTC Therapeutics, Inc.PTCT 2 lines 71,666, disposed Open Form 4 filing 0001179110-14-005758
2010-12-06 P, Open-market purchase THL Credit, Inc.TCRD 3 lines 157,277, acquired Open Form 4 filing 0001181431-10-059804
2010-11-24 P, Open-market purchase THL Credit, Inc.TCRD 2,568, acquired Open Form 4 filing 0001181431-10-057871
2010-11-23 P, Open-market purchase THL Credit, Inc.TCRD 1,283, acquired Open Form 4 filing 0001181431-10-057870
2010-11-23 P, Open-market purchase THL Credit, Inc.TCRD 1,283, disposed Open Form 4 filing 0001181431-10-057506
2010-11-22 P, Open-market purchase THL Credit, Inc.TCRD 2 lines 1,296, acquired Open Form 4 filing 0001181431-10-057870
2010-11-22 P, Open-market purchase THL Credit, Inc.TCRD 2 lines 1,296, disposed Open Form 4 filing 0001181431-10-057506
2010-11-19 P, Open-market purchase THL Credit, Inc.TCRD 2 lines 6,406, acquired Open Form 4 filing 0001181431-10-057067
2010-11-18 P, Open-market purchase THL Credit, Inc.TCRD 3 lines 146,365, acquired Open Form 4 filing 0001181431-10-057067
2010-11-17 P, Open-market purchase THL Credit, Inc.TCRD 5 lines 70,324, acquired Open Form 4 filing 0001181431-10-056602
2010-11-16 P, Open-market purchase THL Credit, Inc.TCRD 110,706, acquired Open Form 4 filing 0001181431-10-056602
2009-03-13 P, Open-market purchase Human Genome Sciences IncHGSI 52,341, acquired Open Form 4 filing 0001225208-09-007255
2007-09-10 S, Open-market sale Sepracor Inc /DE/SEPR 33,444, disposed Open Form 4 filing 0001179110-07-018204

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

Search the catalog
Codes on this page
S, Open-market sale
Open-market sale
P, Open-market purchase
Open-market purchase
Relationships on this page
D, Director
Director
O, Officer
Officer

Every value is as reported on the Form 4, totalled to the dollar. Share counts, the price per share and the full list of reporting owners are on each filing's own page, which every row here opens. A row marked n lines adds up that many filed lines of one filing, on one day, on one side of the market; a filing whose lines fall across two pages is left as its lines on both, so no total here is ever short.

What this insider's stored lines contain

Exact counts over every stored line for this entity. This is a statement of composition, not a filter: the only filter this page offers is the open-market one above, because that is the only one an index serves today.

  • Open-market purchase 26
  • Open-market sale 287
  • Option exercise 0
  • Grant or award 0
  • Tax withholding 0
  • Disposition to the issuer 0
  • In-the-money option exercise 0

How to cite this page

ebomi catalog. SOUTHWELL DAVID P, insider transactions. Retrieved 2026-08-23 from https://ebomi.com/insider/0001251553

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

This page as JSON The JSON twin is shaped by the same read model as this page, so the two cannot disagree. Its envelope carries the canonical URL, the retrieval time, the coverage claim, and the licence statement.