Insider · CIK 0001611156

Luo Mary Z.

CIK 0001611156 Name as filed on the most recent filing

Filed as Luo Mary Z. (22)

78 transaction lines · from 22 filings · filed 2015-06-09 to 2024-01-11 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.

0 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
2024-01-10 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 4 lines 7,171,768, disposed Open Form 4 filing 0001104659-24-003330
2024-01-09 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 3 lines 4,923,232, disposed Open Form 4 filing 0001104659-24-003050
2024-01-08 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 7 lines 7,875,476, disposed Open Form 4 filing 0001104659-24-003050
2022-05-20 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 364,365, disposed Open Form 4 filing 0001104659-22-063844
2022-05-19 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 2 lines 1,408,761, disposed Open Form 4 filing 0001104659-22-063416
2022-05-18 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 3 lines 2,289,101, disposed Open Form 4 filing 0001104659-22-063416
2022-05-17 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 2 lines 1,801,440, disposed Open Form 4 filing 0001104659-22-062438
2022-05-16 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 2 lines 2,433,457, disposed Open Form 4 filing 0001104659-22-062438
2021-02-18 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 7,562, disposed Open Form 4 filing 0001104659-21-025361
2021-02-17 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 257,723, disposed Open Form 4 filing 0001104659-21-025361
2021-02-16 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 301,031, disposed Open Form 4 filing 0001104659-21-025361
2021-02-12 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 251,522, disposed Open Form 4 filing 0001104659-21-022246
2021-02-11 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 377,884, disposed Open Form 4 filing 0001104659-21-022246
2021-02-10 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 295,344, disposed Open Form 4 filing 0001104659-21-022246
2021-02-09 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 225,776, disposed Open Form 4 filing 0001104659-21-016790
2021-02-08 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 254,049, disposed Open Form 4 filing 0001104659-21-016790
2021-02-05 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 293,721, disposed Open Form 4 filing 0001104659-21-016790
2021-02-04 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 483,020, disposed Open Form 4 filing 0001104659-21-013185
2021-02-03 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 299,323, disposed Open Form 4 filing 0001104659-21-013185
2021-02-02 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 257,821, disposed Open Form 4 filing 0001104659-21-011540
2021-02-01 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 441,120, disposed Open Form 4 filing 0001104659-21-011540
2019-09-11 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 6,246,000, disposed Open Form 4 filing 0001104659-19-050009
2018-12-14 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 892,309, disposed Open Form 4 filing 0001104659-18-073392
2018-12-13 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 623,166, disposed Open Form 4 filing 0001104659-18-072896
2018-12-12 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 794,736, disposed Open Form 4 filing 0001104659-18-072896
2018-12-11 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 2 lines 1,433,150, disposed Open Form 4 filing 0001104659-18-072896
2018-05-16 P, Open-market purchase Amphastar Pharmaceuticals, Inc.AMPH 240,854, acquired Open Form 4 filing 0001104659-18-034167
2018-05-15 P, Open-market purchase Amphastar Pharmaceuticals, Inc.AMPH 401,970, acquired Open Form 4 filing 0001104659-18-034167
2016-09-21 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 2 lines 1,140,334, disposed Open Form 4 filing 0001104659-16-146141
2016-09-20 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 2,798,335, disposed Open Form 4 filing 0001104659-16-146141
2016-09-20 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 2,030,693, disposed Open Form 4 filing 0001104659-16-146141
2016-09-20 S, Open-market sale Amphastar Pharmaceuticals, Inc.AMPH 1,795,038, disposed Open Form 4 filing 0001104659-16-146141

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
P, Open-market purchase
Open-market purchase

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

No transaction line is stored for this entity, so there is nothing to break down by code. The catalog holds its filings; what it does not hold is a single reportable line from them, which is a fact about the parse and about these filings, not about the entity.

How to cite this page

ebomi catalog. Luo Mary Z., insider transactions. Retrieved 2026-08-23 from https://ebomi.com/insider/0001611156

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

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