GC Investments LLC
CIK 0001720808 Name as filed on the most recent filing
Filed as GC Investments LLC (19)
33 transaction lines · from 19 filings · filed 2017-11-03 to 2024-10-15 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.
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.
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.
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 2026-08-21 05:23 UTC.
No issuer is recorded
The catalog holds no filing linking this CIK to an issuer.
Transactions
Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.
33 transactions · Newest transaction date first, id breaking the tie.
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 2026-08-21 05:23 UTC.
| Direction | Date | Issuer | Code | Shares | Price | Value USD | Filing |
|---|---|---|---|---|---|---|---|
| 2024-10-14 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 2,176 disposed | 95.31 | 207,404.13 | Form 4, filing 0001127602-24-025425 | |
| 2024-10-11 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 94,109 disposed | 95.20 | 8,958,800.36 | Form 4, filing 0001127602-24-025425 | |
| 2024-10-11 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 3,715 disposed | 96.15 | 357,185.73 | Form 4, filing 0001127602-24-025425 | |
| 2024-06-12 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 76,384 disposed | 97.12 | 7,418,200.20 | Form 4, filing 0000950170-24-072768 | |
| 2024-06-12 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 23,616 disposed | 97.59 | 2,304,576.81 | Form 4, filing 0000950170-24-072768 | |
| 2024-05-21 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 1,296 disposed | 90.86 | 117,756.37 | Form 4, filing 0001127602-24-016222 | |
| 2024-05-20 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 33,046 disposed | 91.49 | 3,023,395.06 | Form 4, filing 0001127602-24-016222 | |
| 2024-05-20 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 15,658 disposed | 92.20 | 1,443,615.93 | Form 4, filing 0001127602-24-016222 | |
| 2024-05-17 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 47,800 disposed | 90.32 | 4,317,444.18 | Form 4, filing 0001127602-24-015944 | |
| 2024-05-17 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 2,200 disposed | 91.16 | 200,541.44 | Form 4, filing 0001127602-24-015944 | |
| 2023-12-08 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 4,564 disposed | 71.58 | 326,687.93 | Form 4, filing 0001127602-23-029184 | |
| 2023-12-06 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 13,511 disposed | 72.00 | 972,810.92 | Form 4, filing 0001127602-23-029107 | |
| 2023-12-06 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 900 disposed | 72.84 | 65,555.01 | Form 4, filing 0001127602-23-029107 | |
| 2023-12-01 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 45,766 disposed | 72.79 | 3,331,165.27 | Form 4, filing 0001127602-23-028826 | |
| 2023-11-30 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 1,128 disposed | 72.65 | 81,949.20 | Form 4, filing 0001127602-23-028547 | |
| 2023-11-29 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 25,454 disposed | 73.10 | 1,860,654.31 | Form 4, filing 0001127602-23-028547 | |
| 2023-11-29 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 100 disposed | 73.84 | 7,383.50 | Form 4, filing 0001127602-23-028547 | |
| 2023-11-21 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 7,944 disposed | 73.04 | 580,259.15 | Form 4, filing 0001127602-23-028177 | |
| 2023-11-21 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 633 disposed | 73.73 | 46,670.08 | Form 4, filing 0001127602-23-028177 | |
| 2023-04-14 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 40,833 disposed | 70.98 | 2,898,489.67 | Form 4, filing 0001127602-23-012946 | |
| 2023-04-14 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 9,167 disposed | 71.78 | 658,007.26 | Form 4, filing 0001127602-23-012946 | |
| 2023-04-13 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 50,000 disposed | 71.34 | 3,566,900.00 | Form 4, filing 0001127602-23-012946 | |
| 2023-03-14 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 34,752 disposed | 65.86 | 2,288,905.73 | Form 4, filing 0001127602-23-010368 | |
| 2023-03-14 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 15,430 disposed | 66.37 | 1,024,058.24 | Form 4, filing 0001127602-23-010368 | |
| 2023-03-10 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 49,818 disposed | 64.76 | 3,226,462.77 | Form 4, filing 0001127602-23-010042 | |
| 2019-08-02 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 32,765 disposed | 40.42 | 1,324,361.30 | Form 4, filing 0000899243-19-021036 | |
| 2019-08-01 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 7,235 disposed | 41.37 | 299,319.18 | Form 4, filing 0000899243-19-021036 | |
| 2019-07-12 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 6,989 disposed | 41.44 | 289,617.17 | Form 4, filing 0000899243-19-019676 | |
| 2019-07-11 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 12,935 disposed | 42.22 | 546,051.02 | Form 4, filing 0000899243-19-019589 | |
| 2019-07-10 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 20,076 disposed | 42.21 | 847,367.81 | Form 4, filing 0000899243-19-019507 | |
| 2018-06-11 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 200,000 disposed | 33.42 | 6,685,000.00 | Form 4, filing 0000899243-18-015990 | |
| 2017-11-03 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 1,200,000 disposed | 12.09 | 14,508,000.00 | Form 4, filing 0000899243-18-015969 | |
| 2017-11-03 |
Altair Engineering Inc. ALTR |
S, Open-market sale | 800,000 disposed | 12.09 | 9,672,000.00 | Form 4, filing 0000899243-17-025360 |
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.
- S, Open-market sale
- Open-market sale
Every value is as reported on the Form 4. A price the filing did not report is marked Not reported and no value is computed from it. Codes outside the open market, drawn in grey behind a dashed rule, are compensation and administrative machinery rather than a decision to trade at the prevailing price.
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 33
- 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. GC Investments LLC, insider transactions. Retrieved 2026-08-21 from https://ebomi.com/insider/0001720808
Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6