Altair Engineering Inc.
ALTRDelisted- Industry
- Services-Prepackaged Software
- SEC CIK
- 0001701732
Altair Engineering Inc. was delisted in 2025; its insiders filed their last Form 4 on Mar 26, 2025; 298 institutions reported holding it in 13F filings for Q4 2024, worth $6.27B in total; ARK Invest was the only superinvestor holding it.
13F holders, Q4 2024
Institutional positions in Altair Engineering Inc. as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
ALTR is no longer listed, so this page shows Q4 2024. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 298
- +49 vs. Q3 2024
- Shares held
- 57.4M
- −3.04M (−5.0%) vs. Q3 2024
- Total value
- $6.27B
- +$490.8M (+8.5%) vs. Q3 2024
- New holders
- 93
- 78 more added
- Sold out
- 44
- 97 more reduced
3 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ALTR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1 | $2.08K |
| Q1 2026 | 1 | $2.08K |
| Q4 2025 | 1 | $2.08K |
| Q3 2025 | 1 | $2.08K |
| Q2 2025 | 2 | $4.13K |
| Q1 2025 | 3 | $53.7K |
| Q4 2024 | 298 | $6.27B |
| Q3 2024 | 252 | $5.80B |
| Q2 2024 | 240 | $5.98B |
| Q1 2024 | 233 | $4.96B |
| Q4 2023 | 216 | $4.78B |
| Q3 2023 | 194 | $3.30B |
| Q2 2023 | 214 | $3.94B |
| Q1 2023 | 199 | $3.73B |
| Q4 2022 | 173 | $2.25B |
| Q3 2022 | 178 | $2.31B |
| Q2 2022 | 184 | $2.67B |
| Q1 2022 | 189 | $3.24B |
| Q4 2021 | 176 | $3.84B |
| Q3 2021 | 173 | $3.36B |
| Q2 2021 | 165 | $3.12B |
| Q1 2021 | 164 | $2.69B |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding Altair Engineering Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Matrix Capital Management Company, LP | 12,430,000 | $1.36B | 63.04% | 00.0% | Unchanged |
| BlackRock, Inc. | 7,478,856 | $816.0M | 0.02% | −565,929−7.0% | Reduced |
| Vanguard Group Inc | 6,894,230 | $752.2M | 0.01% | +317,575+4.8% | Added |
| HBK Investments L P | 2,779,518 | $303.3M | 5.76% | +2,779,518 | New |
| State Street Corp | 2,122,319 | $231.6M | 0.01% | +68,362+3.3% | Added |
| Geode Capital Management, LLC | 1,394,124 | $152.1M | 0.01% | −29,756−2.1% | Reduced |
| Impax Asset Management Group plc | 1,196,098 | $129.5M | 0.59% | −164,123−12.1% | Reduced |
| Conestoga Capital Advisors, LLC | 1,112,548 | $121.4M | 1.61% | −1,410,003−55.9% | Reduced |
| Alliancebernstein L.P. | 1,066,016 | $116.3M | 0.04% | −204,587−16.1% | Reduced |
| Goldman Sachs Group Inc | 909,907 | $99.3M | 0.02% | +566,105+164.7% | Added |
| UBS Oconnor LLC | 897,580 | $97.9M | 2.45% | +897,580 | New |
| Northern Trust Corp | 751,191 | $82.0M | 0.01% | +63,368+9.2% | Added |
| Candriam Luxembourg S.C.A. | 614,335 | $67.0M | 0.39% | −86,363−12.3% | Reduced |
| Dimensional Fund Advisors LP | 591,573 | $64.5M | 0.02% | +12,585+2.2% | Added |
| Magnetar Financial LLC | 569,534 | $62.1M | 1.43% | +569,534 | New |
| Standard Life Aberdeen plc | 566,936 | $61.9M | 0.12% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 566,791 | $61.8M | 0.00% | +429,010+311.4% | Added |
| Millennium Management LLC | 560,612 | $61.2M | 0.05% | +560,612 | New |
| Morgan Stanley | 547,863 | $59.8M | 0.00% | −142,827−20.7% | Reduced |
| Bamco Inc | 539,002 | $58.8M | 0.15% | −720,342−57.2% | Reduced |
| Charles Schwab Investment Management Inc | 506,579 | $55.3M | 0.01% | +1,109+0.2% | Added |
| CNH Partners LLC | 487,904 | $53.2M | 1.26% | +487,904 | New |
| Bank of New York Mellon Corp | 421,883 | $46.0M | 0.01% | −48,877−10.4% | Reduced |
| Man Group plc | 393,713 | $43.0M | 0.13% | +393,713 | New |
| UBS Asset Management Americas Inc | 381,061 | $41.6M | 0.01% | +254,448+201.0% | Added |
| Royal Bank of Canada | 364,814 | $39.8M | 0.01% | −50,554−12.2% | Reduced |
| Norges Bank | 347,348 | $37.9M | 0.00% | +288,766+492.9% | Added |
| Thematics Asset Management | 341,939 | $37.3M | 1.63% | −34,342−9.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 331,528 | $36.2M | 0.23% | +329,016+13,097.8% | Added |
| Franklin Resources Inc | 330,957 | $36.1M | 0.01% | −97,326−22.7% | Reduced |
| Tudor Investment Corp Et Al | 316,994 | $34.6M | 0.37% | +316,994 | New |
| Woodline Partners LP | 299,998 | $32.7M | 0.22% | +299,998 | New |
| Farallon Capital Management, L.L.C. | 282,000 | $30.8M | 0.16% | +282,000 | New |
| Primecap Management Co | 238,363 | $26.0M | 0.02% | −84,130−26.1% | Reduced |
| Needham Investment Management LLC | 225,000 | $24.5M | 1.89% | −6,500−2.8% | Reduced |
| Canada Pension Plan Investment Board | 222,600 | $24.3M | 0.02% | +222,600 | New |
| TIG Advisors, LLC | 220,467 | $24.1M | 1.86% | +220,467 | New |
| California Public Employees Retirement System | 220,435 | $24.1M | 0.02% | +127,009+135.9% | Added |
| Westchester Capital Management, LLC | 210,020 | $22.9M | 1.33% | +210,020 | New |
| Ameriprise Financial Inc | 203,035 | $22.2M | 0.01% | −485,223−70.5% | Reduced |
| Hudson Bay Capital Management LP | 202,091 | $22.1M | 0.13% | +202,091 | New |
| State of Wisconsin Investment Board | 197,530 | $21.6M | 0.06% | +97,452+97.4% | Added |
| Davidson Kempner Capital Management LP | 192,694 | $21.0M | 0.37% | +192,694 | New |
| UBS Group AG | 192,502 | $21.0M | 0.00% | +158,136+460.2% | Added |
| HSBC Holdings PLC | 180,621 | $19.7M | 0.01% | +180,621 | New |
| Rhumbline Advisers | 178,626 | $19.5M | 0.02% | +1,875+1.1% | Added |
| Slotnik Capital, LLC | 177,629 | $19.4M | 8.84% | +177,629 | New |
| LMR Partners LLP | 171,713 | $18.7M | 0.33% | +171,713 | New |
| Nuveen Asset Management, LLC | 169,113 | $18.5M | 0.01% | +7,047+4.3% | Added |
| Principal Financial Group Inc | 168,665 | $18.4M | 0.01% | +2,872+1.7% | Added |
| Comerica Bank | 163,222 | $17.8M | 0.07% | −36,862−18.4% | Reduced |
| King Luther Capital Management Corp | 158,402 | $17.3M | 0.07% | −16,331−9.3% | Reduced |
| Barclays PLC | 149,483 | $16.3M | 0.01% | +44,639+42.6% | Added |
| Water Island Capital LLC | 144,509 | $15.8M | 1.89% | +144,509 | New |
| One68 Global Capital, LLC | 140,043 | $15.3M | 8.17% | +140,043 | New |
| Swiss National Bank | 116,900 | $12.8M | 0.01% | +5,700+5.1% | Added |
| Bank of America Corp | 113,823 | $12.4M | 0.00% | −43,773−27.8% | Reduced |
| FIL Ltd | 113,000 | $12.3M | 0.01% | +113,000 | New |
| Adage Capital Partners GP, L.L.C. | 100,659 | $11.0M | 0.02% | +100,659 | New |
| Legal & General Group Plc | 95,743 | $10.4M | 0.00% | +3,979+4.3% | Added |
| Corebridge Financial, Inc. | 94,231 | $10.3M | 0.06% | −6,170−6.1% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 92,434 | $10.1M | 0.03% | +92,434 | New |
| Citigroup Inc | 91,460 | $9.98M | 0.01% | +40,942+81.0% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 91,000 | $9.93M | 0.02% | +76,800+540.8% | Added |
| Marshall Wace, LLP | 89,273 | $9.74M | 0.01% | +87,069+3,950.5% | Added |
| Invesco Ltd. | 87,830 | $9.58M | 0.00% | −1,318,131−93.8% | Reduced |
| Voya Investment Management LLC | 87,089 | $9.50M | 0.01% | +9,612+12.4% | Added |
| Nicholas Company, Inc. | 85,960 | $9.38M | 0.15% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 80,956 | $8.83M | 0.00% | −4,100−4.8% | Reduced |
| Stephens Investment Management Group LLC | 76,735 | $8.37M | 0.11% | −299,544−79.6% | Reduced |
| New York Life Investment Management LLC | 76,363 | $8.33M | 0.08% | +70,017+1,103.3% | Added |
| Squarepoint Ops LLC | 75,779 | $8.27M | 0.02% | +18,572+32.5% | Added |
| Mercer Global Advisors Inc | 72,945 | $7.96M | 0.02% | +72,945 | New |
| Retirement Systems of Alabama | 72,685 | $7.93M | 0.03% | +494+0.7% | Added |
| Bank of Montreal | 70,047 | $7.64M | 0.00% | +57,675+466.2% | Added |
| Pentwater Capital Management LP | 69,362 | $7.57M | 0.13% | +69,362 | New |
| Susquehanna International Group, LLP | 68,262 | $7.45M | 0.01% | +60,814+816.5% | Added |
| Lighthouse Investment Partners, LLC | 67,162 | $7.33M | 0.28% | +56,662+539.6% | Added |
| Manufacturers Life Insurance Company, The | 66,964 | $7.31M | 0.01% | −2,234−3.2% | Reduced |
| RE Advisers Corp | 66,877 | $7.30M | 0.18% | −7,500−10.1% | Reduced |
| MetLife Investment Management | 65,227 | $7.12M | 0.04% | +3,317+5.4% | Added |
| ClearAlpha Technologies LP | 64,987 | $7.09M | 6.09% | +64,987 | New |
| Winton Group Ltd | 64,851 | $7.08M | 0.47% | +64,851 | New |
| Mutual of America Capital Management LLC | 64,020 | $6.99M | 0.08% | −568−0.9% | Reduced |
| Sit Investment Associates Inc | 63,543 | $6.93M | 0.16% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 63,202 | $6.90M | 0.04% | +50,102+382.5% | Added |
| Versor Investments LP | 59,655 | $6.51M | 1.12% | +54,556+1,069.9% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 55,955 | $6.11M | 0.02% | +55,955 | New |
| Federated Hermes, Inc. | 55,253 | $6.03M | 0.01% | −366,499−86.9% | Reduced |
| California State Teachers Retirement System | 55,226 | $6.03M | 0.01% | +1,340+2.5% | Added |
| Raymond James Financial Inc | 53,994 | $5.89M | 0.00% | +53,994 | New |
| Anson Funds Management LP | 50,085 | $5.46M | 0.67% | +50,085 | New |
| Polar Asset Management Partners Inc. | 50,000 | $5.46M | 0.08% | +50,000 | New |
| Calamos Advisors LLC | 49,773 | $5.43M | 0.03% | +49,773 | New |
| Great West Life Assurance Co | 46,350 | $5.06M | 0.01% | +1,773+4.0% | Added |
| Vestcor Inc | 46,046 | $5.02M | 0.17% | +46,046 | New |
| Deutsche Bank AG | 45,648 | $4.98M | 0.00% | +11,529+33.8% | Added |
| Voloridge Investment Management, LLC | 41,974 | $4.58M | 0.02% | +41,974 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 39,020 | $4.26M | 0.01% | +6,367+19.5% | Added |
| Natixis | 38,024 | $4.15M | 0.03% | +38,024 | New |