Altair Engineering Inc.

SIMPLEX TRADING, LLC

Report date

12/31/2024

Quarter

2024 Q4

Filed

2/11/2025

Shares

9,381

Value ($000)

1,023

Weight

0.0%

2019 Q4 - 2024 Q4 (13 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2024 Q4	2/11/2025	1,023	0.0%	9,381	12/31/2024
2024 Q3	11/8/2024	238	0.0%	2,492	9/30/2024
2024 Q2	7/25/2024	40	0.0%	415	6/30/2024
2023 Q4	2/2/2024	325	0.0%	3,870	12/31/2023
2023 Q2	8/4/2023	0	0.0%	3	6/30/2023
2023 Q1	4/27/2023	8	0.0%	122	3/31/2023
2021 Q3	10/28/2021	37	0.0%	535	9/30/2021
2021 Q2	8/12/2021	36	0.0%	535	6/30/2021
2021 Q1	4/26/2021	31	0.0%	498	3/31/2021
2020 Q4	2/2/2021	5	0.0%	98	12/31/2020
2020 Q2	7/13/2020	3	0.0%	76	6/30/2020
2020 Q1	4/29/2020	2	0.0%	76	3/31/2020
2019 Q4	2/5/2020	51	0.0%	1,444	12/31/2019