Insider · CIK 0001611283

Gerst Diane G.

CIK 0001611283 Name as filed on the most recent filing

Filed as Gerst Diane G. (18)

19 transaction lines · from 18 filings · filed 2015-04-10 to 2022-07-19 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 2026-08-26 05:24 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.

19 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 2026-08-26 05:24 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2022-07-18 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 56,597, disposed Open Form 4 filing 0001104659-22-080883
2022-07-11 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 55,145, disposed Open Form 4 filing 0001104659-22-079289
2022-07-05 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 63,460, disposed Open Form 4 filing 0001104659-22-077826
2022-06-30 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 180,110, disposed Open Form 4 filing 0001104659-22-077306
2017-12-19 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 10,186, disposed Open Form 4 filing 0001104659-17-074116
2017-12-12 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 9,917, disposed Open Form 4 filing 0001104659-17-073456
2017-11-28 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 9,493, disposed Open Form 4 filing 0001104659-17-071205
2017-11-21 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 9,839, disposed Open Form 4 filing 0001209191-17-062137
2017-11-15 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 9,292, disposed Open Form 4 filing 0001104659-17-069496
2017-11-07 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 9,375, disposed Open Form 4 filing 0001104659-17-067522
2017-10-24 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 9,568, disposed Open Form 4 filing 0001104659-17-064080
2017-10-17 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 9,665, disposed Open Form 4 filing 0001104659-17-063006
2017-10-05 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 159,376, disposed Open Form 4 filing 0001104659-17-061354
2016-12-15 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 60,287, disposed Open Form 4 filing 0001104659-16-162675
2016-08-19 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 463,607, disposed Open Form 4 filing 0001104659-16-140757
2016-05-18 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 19,939, disposed Open Form 4 filing 0000899243-16-020484
2016-04-19 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 73,125, disposed Open Form 4 filing 0000899243-16-018345
2016-04-18 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 200,649, disposed Open Form 4 filing 0000899243-16-018345
2015-04-08 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 157,900, disposed Open Form 4 filing 0001104659-15-027095

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
S, Open-market sale
Open-market sale
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.

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 0
  • Open-market sale 19
  • 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. Gerst Diane G., insider transactions. Retrieved 2026-08-26 from https://ebomi.com/insider/0001611283

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

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