Insider · CIK 0001791106

Cho Paul Yoonku

CIK 0001791106 Name as filed on the most recent filing

Filed as Cho Paul Yoonku (9)

9 transaction lines · from 9 filings · filed 2021-11-05 to 2026-06-04 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.

9 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
2026-06-02 S, Open-market sale Ultra Clean Holdings, Inc.UCTT 84,365, disposed Open Form 4 filing 0000950103-26-008550
2026-05-08 S, Open-market sale Ultra Clean Holdings, Inc.UCTT 173,780, disposed Open Form 4 filing 0000950103-26-007117
2025-06-06 S, Open-market sale Ultra Clean Holdings, Inc.UCTT 86,011, disposed Open Form 4 filing 0000950103-25-007239
2024-05-17 S, Open-market sale Ultra Clean Holdings, Inc.UCTT 154,486, disposed Open Form 4 filing 0000950103-24-006984
2023-12-04 S, Open-market sale Ultra Clean Holdings, Inc.UCTT 133,074, disposed Open Form 4 filing 0000950103-23-017266
2023-05-26 S, Open-market sale Ultra Clean Holdings, Inc.UCTT 6,354, disposed Open Form 4 filing 0000950103-23-008253
2022-11-03 S, Open-market sale Ultra Clean Holdings, Inc.UCTT 86,732, disposed Open Form 4 filing 0000950103-22-019324
2022-05-11 S, Open-market sale Ultra Clean Holdings, Inc.UCTT 107,528, disposed Open Form 4 filing 0000950103-22-008476
2021-11-03 S, Open-market sale Ultra Clean Holdings, Inc.UCTT 510,833, disposed Open Form 4 filing 0000950103-21-017461

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
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 9
  • 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. Cho Paul Yoonku, insider transactions. Retrieved 2026-08-24 from https://ebomi.com/insider/0001791106

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.