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Insider · CIK 0001351931

Cyrus Tang Foundation

CIK 0001351931 Name as filed on the most recent filing

Filed as Cyrus Tang Foundation (36)

55 transaction lines · from 36 filings · filed 2010-07-20 to 2012-08-31 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.

55 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
2012-08-30 S, Open-market sale Sigmatron International IncSGMA 13,621, disposed Open Form 4 filing 0001209191-12-043873
2012-08-29 S, Open-market sale Sigmatron International IncSGMA 2,813, disposed Open Form 4 filing 0001209191-12-043734
2012-08-28 S, Open-market sale Sigmatron International IncSGMA 3,256, disposed Open Form 4 filing 0001209191-12-043734
2012-08-09 S, Open-market sale Sigmatron International IncSGMA 1,789, disposed Open Form 4 filing 0001209191-12-041215
2012-08-08 S, Open-market sale Sigmatron International IncSGMA 1,125, disposed Open Form 4 filing 0001209191-12-041215
2012-08-06 S, Open-market sale Sigmatron International IncSGMA 1,128, disposed Open Form 4 filing 0001209191-12-040889
2012-07-13 S, Open-market sale Sigmatron International IncSGMA 1,323, disposed Open Form 4 filing 0001209191-12-038243
2012-06-18 S, Open-market sale Sigmatron International IncSGMA 188, disposed Open Form 4 filing 0001209191-12-034470
2012-06-15 S, Open-market sale Sigmatron International IncSGMA 188, disposed Open Form 4 filing 0001209191-12-034470
2012-06-13 S, Open-market sale Sigmatron International IncSGMA 193, disposed Open Form 4 filing 0001209191-12-033996
2012-06-11 S, Open-market sale Sigmatron International IncSGMA 188, disposed Open Form 4 filing 0001209191-12-033619
2012-06-07 S, Open-market sale Sigmatron International IncSGMA 656, disposed Open Form 4 filing 0001209191-12-033156
2012-06-05 S, Open-market sale Sigmatron International IncSGMA 2,022, disposed Open Form 4 filing 0001209191-12-032709
2012-02-14 S, Open-market sale Sigmatron International IncSGMA 21,420, disposed Open Form 4 filing 0001209191-12-010300
2012-02-13 S, Open-market sale Sigmatron International IncSGMA 11,438, disposed Open Form 4 filing 0001209191-12-010300
2012-02-09 S, Open-market sale Sigmatron International IncSGMA 1,219, disposed Open Form 4 filing 0001209191-12-009517
2012-02-07 S, Open-market sale Sigmatron International IncSGMA 2,453, disposed Open Form 4 filing 0001209191-12-008615
2012-02-03 S, Open-market sale Sigmatron International IncSGMA 10,573, disposed Open Form 4 filing 0001209191-12-008017
2012-02-02 S, Open-market sale Sigmatron International IncSGMA 3,750, disposed Open Form 4 filing 0001209191-12-007396
2012-02-01 S, Open-market sale Sigmatron International IncSGMA 10,988, disposed Open Form 4 filing 0001209191-12-007396
2012-01-30 S, Open-market sale Sigmatron International IncSGMA 7,313, disposed Open Form 4 filing 0001209191-12-006295
2012-01-27 S, Open-market sale Sigmatron International IncSGMA 3,420, disposed Open Form 4 filing 0001209191-12-006295
2011-10-25 S, Open-market sale Sigmatron International IncSGMA 1,632, disposed Open Form 4 filing 0001209191-11-052704
2011-10-24 S, Open-market sale Sigmatron International IncSGMA 57,323, disposed Open Form 4 filing 0001209191-11-052704
2011-10-19 S, Open-market sale Sigmatron International IncSGMA 9,967, disposed Open Form 4 filing 0001209191-11-052346
2011-10-17 S, Open-market sale Sigmatron International IncSGMA 821, disposed Open Form 4 filing 0001209191-11-052127
2011-04-04 S, Open-market sale Sigmatron International IncSGMA 1,388, disposed Open Form 4 filing 0001209191-11-021933
2011-03-30 S, Open-market sale Sigmatron International IncSGMA 2,220, disposed Open Form 4 filing 0001209191-11-020258
2011-03-29 S, Open-market sale Sigmatron International IncSGMA 1,943, disposed Open Form 4 filing 0001209191-11-020258
2011-03-28 S, Open-market sale Sigmatron International IncSGMA 31,350, disposed Open Form 4 filing 0001209191-11-019874
2011-03-25 S, Open-market sale Sigmatron International IncSGMA 56,650, disposed Open Form 4 filing 0001209191-11-019874
2011-03-23 S, Open-market sale Sigmatron International IncSGMA 27,550, disposed Open Form 4 filing 0001209191-11-019614
2011-03-11 S, Open-market sale Sigmatron International IncSGMA 1,400, disposed Open Form 4 filing 0001209191-11-017953
2010-10-29 S, Open-market sale Sigmatron International IncSGMA 2,735, disposed Open Form 4 filing 0001209191-10-052503
2010-10-28 S, Open-market sale Sigmatron International IncSGMA 44,400, disposed Open Form 4 filing 0001209191-10-052084
2010-10-27 S, Open-market sale Sigmatron International IncSGMA 1,725, disposed Open Form 4 filing 0001209191-10-052084
2010-10-25 S, Open-market sale Sigmatron International IncSGMA 35,469, disposed Open Form 4 filing 0001209191-10-051822
2010-10-21 S, Open-market sale Sigmatron International IncSGMA 15,785, disposed Open Form 4 filing 0001209191-10-051346
2010-10-20 S, Open-market sale Sigmatron International IncSGMA 10,313, disposed Open Form 4 filing 0001209191-10-051346
2010-10-18 S, Open-market sale Sigmatron International IncSGMA 870, disposed Open Form 4 filing 0001209191-10-050811
2010-09-20 S, Open-market sale Sigmatron International IncSGMA 56,123, disposed Open Form 4 filing 0001209191-10-047127
2010-07-30 S, Open-market sale Sigmatron International IncSGMA 14,410, disposed Open Form 4 filing 0001209191-10-040684
2010-07-29 S, Open-market sale Sigmatron International IncSGMA 34,938, disposed Open Form 4 filing 0001209191-10-040205
2010-07-28 S, Open-market sale Sigmatron International IncSGMA 2,960, disposed Open Form 4 filing 0001209191-10-040205
2010-07-27 S, Open-market sale Sigmatron International IncSGMA 47,200, disposed Open Form 4 filing 0001209191-10-039853
2010-07-26 S, Open-market sale Sigmatron International IncSGMA 313, disposed Open Form 4 filing 0001209191-10-039853
2010-07-23 S, Open-market sale Sigmatron International IncSGMA 9,362, disposed Open Form 4 filing 0001209191-10-039576
2010-07-22 S, Open-market sale Sigmatron International IncSGMA 30,650, disposed Open Form 4 filing 0001209191-10-039576
2010-07-20 S, Open-market sale Sigmatron International IncSGMA 17,105, disposed Open Form 4 filing 0001209191-10-039322
2010-07-19 S, Open-market sale Sigmatron International IncSGMA 11,680, disposed Open Form 4 filing 0001209191-10-039067

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
Relationships on this page
*, Other
Other
%, Ten percent owner
Ten percent owner

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 55
  • 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. CYRUS TANG FOUNDATION, insider transactions. Retrieved 2026-08-24 from https://ebomi.com/insider/0001351931

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.