Altair Engineering Inc.

Historical 13F Holders

Symbol
ALTR
CUSIP
021369103
All holders as of
Q2 2026
Type
Equity
Class
COM CL A
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 021369103 since 12/18/2024, largest first.

Filer % of Class Filed
BlackRock, Inc. 13G/A 12.5% 2/5/2025
Event 12/31/2024
Under 5%, checked the "5 percent or less" box, or amended by a later filing (3)
George J. Christ 13G/A
0% 3/26/2025
Event 3/26/2025
Matrix Capital Management Company, LP 13G/A
0% 4/7/2025
Event 3/31/2025
James Ralph Scapa 13G/A
0% 3/26/2025
Event 3/26/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q2 1 1.00 $2.08 k
2026 Q1 1 1.00 $2.08 k
2025 Q4 1 1.00 $2.08 k
2025 Q3 1 1.00 $2.08 k
2025 Q2 2 25.0 $4.13 k
2025 Q1 3 465 $53.7 k
2024 Q4 320 57.5 M $6.27 B
2024 Q3 265 60.8 M $5.81 B
2024 Q2 254 61.8 M $6.06 B
2024 Q1 246 57.6 M $4.96 B
2023 Q4 229 56.9 M $4.78 B
2023 Q3 202 52.8 M $3.30 B
2023 Q2 221 51.9 M $3.94 B
2023 Q1 207 51.7 M $3.73 B
2022 Q4 181 50.9 M $2.32 B
2022 Q3 185 52.5 M $2.32 B
2022 Q2 190 50.9 M $2.67 B
2022 Q1 193 50.3 M $3.24 B
2021 Q4 180 49.7 M $3.84 B
2021 Q3 175 48.8 M $3.36 B
2021 Q2 170 45.3 M $3.12 B
2021 Q1 170 43.1 M $2.69 B
2020 Q4 154 42.8 M $2.49 B
2020 Q3 140 40.0 M $1.68 B
2020 Q2 127 38.8 M $1.54 B
2020 Q1 115 38.8 M $1.03 B
2019 Q4 109 38.8 M $1.39 B
2019 Q3 130 40.1 M $1.39 B
2019 Q2 137 33.5 M $1.35 B
2019 Q1 136 27.4 M $1.01 B
2018 Q4 129 27.1 M $749 M
2018 Q3 114 27.5 M $1.19 B
2018 Q2 110 24.9 M $850 M
2018 Q1 59 15.3 M $480 M
2017 Q4 51 12.9 M $309 M