Insider · CIK 0001720686

Chouinard Brett R

CIK 0001720686 Name as filed on the most recent filing

Filed as Chouinard Brett R (27)

37 transaction lines · from 27 filings · filed 2018-06-11 to 2021-07-15 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.

37 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
2021-07-14 S, Open-market sale Altair Engineering Inc.ALTR 343,900, disposed Open Form 4 filing 0000899243-21-028578
2021-07-07 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 347,802, disposed Open Form 4 filing 0001127602-21-021693
2021-06-30 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 351,959, disposed Open Form 4 filing 0001127602-21-020847
2021-06-23 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 332,912, disposed Open Form 4 filing 0001127602-21-020566
2021-06-16 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 313,703, disposed Open Form 4 filing 0001127602-21-020152
2021-05-05 S, Open-market sale Altair Engineering Inc.ALTR 325,000, disposed Open Form 4 filing 0001127602-21-015597
2021-04-28 S, Open-market sale Altair Engineering Inc.ALTR 337,240, disposed Open Form 4 filing 0001127602-21-014716
2021-04-21 S, Open-market sale Altair Engineering Inc.ALTR 325,000, disposed Open Form 4 filing 0000899243-21-016611
2021-04-14 S, Open-market sale Altair Engineering Inc.ALTR 325,000, disposed Open Form 4 filing 0000899243-21-015814
2020-12-17 S, Open-market sale Altair Engineering Inc.ALTR 59,644, disposed Open Form 4 filing 0000899243-20-034751
2020-12-03 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 158,210, disposed Open Form 4 filing 0000899243-20-032850
2020-11-12 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 149,204, disposed Open Form 4 filing 0000899243-20-031008
2020-10-29 S, Open-market sale Altair Engineering Inc.ALTR 132,264, disposed Open Form 4 filing 0000899243-20-030091
2020-10-15 S, Open-market sale Altair Engineering Inc.ALTR 136,905, disposed Open Form 4 filing 0000899243-20-028490
2020-10-01 S, Open-market sale Altair Engineering Inc.ALTR 127,806, disposed Open Form 4 filing 0000899243-20-026965
2020-09-24 S, Open-market sale Altair Engineering Inc.ALTR 119,739, disposed Open Form 4 filing 0000899243-20-026314
2020-09-10 S, Open-market sale Altair Engineering Inc.ALTR 123,138, disposed Open Form 4 filing 0000899243-20-024960
2020-08-27 S, Open-market sale Altair Engineering Inc.ALTR 127,728, disposed Open Form 4 filing 0000899243-20-023578
2020-08-20 S, Open-market sale Altair Engineering Inc.ALTR 124,773, disposed Open Form 4 filing 0000899243-20-023191
2020-08-13 S, Open-market sale Altair Engineering Inc.ALTR 121,401, disposed Open Form 4 filing 0000899243-20-022461
2020-08-06 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 125,040, disposed Open Form 4 filing 0000899243-20-021734
2020-07-30 S, Open-market sale Altair Engineering Inc.ALTR 119,478, disposed Open Form 4 filing 0000899243-20-020904
2019-06-10 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 452,658, disposed Open Form 4 filing 0000899243-19-016597
2019-05-13 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 272,960, disposed Open Form 4 filing 0000899243-19-013553
2019-04-16 S, Open-market sale Altair Engineering Inc.ALTR 2 lines 292,245, disposed Open Form 4 filing 0000899243-19-010878
2019-03-05 S, Open-market sale Altair Engineering Inc.ALTR 142,440, disposed Open Form 4 filing 0000899243-19-006631
2018-06-11 S, Open-market sale Altair Engineering Inc.ALTR 2,506,875, disposed Open Form 4 filing 0000899243-18-015976

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
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 0
  • Open-market sale 37
  • 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. Chouinard Brett R, insider transactions. Retrieved 2026-08-22 from https://ebomi.com/insider/0001720686

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.