Insider · CIK 0001291961

Westphal Christoph H

CIK 0001291961 Name as filed on the most recent filing

Filed as Westphal Christoph H (83)

216 transaction lines · from 83 filings · filed 2004-06-01 to 2021-07-22 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.

02

Transactions

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

216 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
2021-07-20 P, Open-market purchase TScan Therapeutics, Inc.TCRX 1,999,995, acquired Open Form 4 filing 0000899243-21-029479
2018-10-16 S, Open-market sale Flex Pharma, Inc.FLKS 2,941,053, disposed Open Form 4 filing 0001104659-18-062807
2016-11-08 P, Open-market purchase Flex Pharma, Inc.FLKS 51,170, acquired Open Form 4 filing 0001615219-16-000232
2016-11-07 P, Open-market purchase Flex Pharma, Inc.FLKS 50,559, acquired Open Form 4 filing 0001615219-16-000230
2016-06-23 P, Open-market purchase Flex Pharma, Inc.FLKS 30,456, acquired Open Form 4 filing 0001615219-16-000212
2016-06-22 P, Open-market purchase Flex Pharma, Inc.FLKS 31,987, acquired Open Form 4 filing 0001615219-16-000210
2016-06-21 P, Open-market purchase Flex Pharma, Inc.FLKS 30,996, acquired Open Form 4 filing 0001615219-16-000210
2016-06-20 P, Open-market purchase Flex Pharma, Inc.FLKS 34,110, acquired Open Form 4 filing 0001615219-16-000208
2016-06-17 P, Open-market purchase Flex Pharma, Inc.FLKS 32,940, acquired Open Form 4 filing 0001615219-16-000208
2016-06-16 P, Open-market purchase Flex Pharma, Inc.FLKS 32,190, acquired Open Form 4 filing 0001615219-16-000206
2016-06-15 P, Open-market purchase Flex Pharma, Inc.FLKS 32,596, acquired Open Form 4 filing 0001615219-16-000206
2016-06-14 P, Open-market purchase Flex Pharma, Inc.FLKS 33,570, acquired Open Form 4 filing 0001615219-16-000204
2016-06-13 P, Open-market purchase Flex Pharma, Inc.FLKS 34,510, acquired Open Form 4 filing 0001615219-16-000204
2016-06-10 P, Open-market purchase Flex Pharma, Inc.FLKS 35,490, acquired Open Form 4 filing 0001615219-16-000202
2016-06-09 P, Open-market purchase Flex Pharma, Inc.FLKS 36,120, acquired Open Form 4 filing 0001615219-16-000202
2016-06-08 P, Open-market purchase Flex Pharma, Inc.FLKS 35,496, acquired Open Form 4 filing 0001615219-16-000196
2016-06-07 P, Open-market purchase Flex Pharma, Inc.FLKS 36,780, acquired Open Form 4 filing 0001615219-16-000196
2016-06-06 P, Open-market purchase Flex Pharma, Inc.FLKS 36,990, acquired Open Form 4 filing 0001615219-16-000187
2016-06-03 P, Open-market purchase Flex Pharma, Inc.FLKS 38,370, acquired Open Form 4 filing 0001615219-16-000187
2016-06-02 P, Open-market purchase Flex Pharma, Inc.FLKS 66,100, acquired Open Form 4 filing 0001615219-16-000185
2016-06-01 P, Open-market purchase Flex Pharma, Inc.FLKS 63,800, acquired Open Form 4 filing 0001615219-16-000185
2016-05-31 P, Open-market purchase Flex Pharma, Inc.FLKS 63,300, acquired Open Form 4 filing 0001615219-16-000183
2016-05-27 P, Open-market purchase Flex Pharma, Inc.FLKS 219,364, acquired Open Form 4 filing 0001615219-16-000183
2016-05-26 P, Open-market purchase Flex Pharma, Inc.FLKS 204,239, acquired Open Form 4 filing 0001615219-16-000181
2016-05-25 P, Open-market purchase Flex Pharma, Inc.FLKS 162,975, acquired Open Form 4 filing 0001615219-16-000181
2016-05-24 P, Open-market purchase Flex Pharma, Inc.FLKS 212,088, acquired Open Form 4 filing 0001615219-16-000179
2016-05-23 P, Open-market purchase Flex Pharma, Inc.FLKS 164,548, acquired Open Form 4 filing 0001615219-16-000179
2016-05-20 P, Open-market purchase Flex Pharma, Inc.FLKS 11,440, acquired Open Form 4 filing 0001615219-16-000177
2016-05-19 P, Open-market purchase Flex Pharma, Inc.FLKS 76,054, acquired Open Form 4 filing 0001615219-16-000177
2016-05-18 P, Open-market purchase Flex Pharma, Inc.FLKS 167,960, acquired Open Form 4 filing 0001615219-16-000175
2016-05-17 P, Open-market purchase Flex Pharma, Inc.FLKS 202,748, acquired Open Form 4 filing 0001615219-16-000175
2016-05-16 P, Open-market purchase Flex Pharma, Inc.FLKS 85,280, acquired Open Form 4 filing 0001615219-16-000173
2016-05-13 P, Open-market purchase Flex Pharma, Inc.FLKS 73,344, acquired Open Form 4 filing 0001615219-16-000173
2016-05-12 P, Open-market purchase Flex Pharma, Inc.FLKS 160,004, acquired Open Form 4 filing 0001615219-16-000166
2016-05-11 P, Open-market purchase Flex Pharma, Inc.FLKS 145,860, acquired Open Form 4 filing 0001615219-16-000166
2016-05-10 P, Open-market purchase Flex Pharma, Inc.FLKS 127,531, acquired Open Form 4 filing 0001615219-16-000164
2016-05-09 P, Open-market purchase Flex Pharma, Inc.FLKS 171,814, acquired Open Form 4 filing 0001615219-16-000164
2016-03-24 P, Open-market purchase Flex Pharma, Inc.FLKS 255,384, acquired Open Form 4 filing 0001615219-16-000145
2016-03-23 P, Open-market purchase Flex Pharma, Inc.FLKS 292,862, acquired Open Form 4 filing 0001615219-16-000145
2016-03-22 P, Open-market purchase Flex Pharma, Inc.FLKS 282,143, acquired Open Form 4 filing 0001615219-16-000143
2016-03-21 P, Open-market purchase Flex Pharma, Inc.FLKS 2 lines 564,195, acquired Open Form 4 filing 0001615219-16-000141
2016-03-18 P, Open-market purchase Flex Pharma, Inc.FLKS 203,913, acquired Open Form 4 filing 0001615219-16-000139
2016-03-17 P, Open-market purchase Flex Pharma, Inc.FLKS 209,359, acquired Open Form 4 filing 0001615219-16-000139
2016-03-16 P, Open-market purchase Flex Pharma, Inc.FLKS 207,691, acquired Open Form 4 filing 0001615219-16-000132
2016-03-15 P, Open-market purchase Flex Pharma, Inc.FLKS 185,060, acquired Open Form 4 filing 0001615219-16-000132
2016-03-11 P, Open-market purchase Flex Pharma, Inc.FLKS 627,760, acquired Open Form 4 filing 0001615219-16-000126
2015-12-14 P, Open-market purchase Flex Pharma, Inc.FLKS 11,130, acquired Open Form 4 filing 0001615219-15-000093
2015-12-07 P, Open-market purchase Flex Pharma, Inc.FLKS 10,899, acquired Open Form 4 filing 0001615219-15-000091
2015-11-30 P, Open-market purchase Flex Pharma, Inc.FLKS 10,929, acquired Open Form 4 filing 0001615219-15-000089

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.

Codes on this page
P, Open-market purchase
Open-market purchase
S, Open-market sale
Open-market sale
Relationships on this page
%, Ten percent owner
Ten percent owner
D, Director
Director

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 102
  • Open-market sale 114
  • 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. Westphal Christoph H, insider transactions. Retrieved 2026-08-24 from https://ebomi.com/insider/0001291961

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

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