Altair Engineering Inc. Class AALTR
13F holders, Q2 2024 (June 30)At the end of Q2 2024, 240 institutions reported holding Altair Engineering Inc. Class A (ALTR) in their 13F filings, up 7 from Q1 2024. 56 opened new positions and 48 sold out. The largest holders were Matrix Capital Management Company, LP ($1.2B), BlackRock Inc. ($772.6M) and Vanguard Group Inc. ($618.0M). 4 famous investors held it, including Ron Baron (0.4% of Baron Capital (BAMCO)'s portfolio), Cathie Wood (0.0% of ARK Investment Management's portfolio) and Ken Fisher (0.0% of Fisher Asset Management's portfolio).
- Company
- Altair Engineering Inc. Class A
- CUSIP
- 021369103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2024 → Q2 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 56 | $142.0M |
| Exits | 48 | $83.6M |
All 13F filers, Q1 2024 → Q2 2024: 7,335,753 shares bought and 3,130,972 shares sold, net +4,204,781 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 240 holders
| Matrix Capital Management Company, LP | 9.28% | No change | 12,430,000 | $1.2B |
| BlackRock Inc. | 0.02% | Add +49.1% | 7,877,110 | $772.6M |
| Vanguard Group Inc. | 0.01% | Add +6.0% | 6,300,946 | $618.0M |
| Conestoga Capital Advisors, LLC | 3.66% | Add +2.0% | 2,488,566 | $244.1M |
| Pictet Asset Management Holding SA | 0.27% | Reduce -9.0% | 2,386,187 | $234.0M |
| State Street Corp. | 0.01% | Add +58.5% | 1,988,368 | $195.0M |
| Invesco Ltd. | 0.03% | Reduce -5.6% | 1,478,754 | $145.0M |
| Impax Asset Management Group plc | 0.56% | Reduce -15.2% | 1,406,654 | $137.1M |
| Baron Capital (BAMCO) | 0.39% | No change | 1,385,507 | $135.9M |
| Geode Capital Management, LLC | 0.01% | Add +11.2% | 1,370,792 | $134.5M |
| Alliancebernstein L.P. | 0.04% | Reduce -6.5% | 1,293,851 | $126.9M |
| T. Rowe Price Investment Management, Inc. | 0.08% | Reduce -4.1% | 1,251,637 | $122.8M |
| Janus Henderson Group PLC | 0.06% | Add +0.1% | 1,068,822 | $104.8M |
| William Blair Investment Management, LLC | 0.24% | New | 933,818 | $91.6M |
| Ameriprise Financial Inc. | 0.02% | Reduce -2.0% | 830,038 | $81.4M |
| Morgan Stanley | 0.01% | Reduce -5.1% | 760,368 | $74.6M |
| Wellington Management Group LLP | 0.01% | Reduce -1.8% | 729,039 | $71.5M |
| AXA S.A. | 0.21% | Reduce -1.8% | 715,538 | $70.2M |
| Northern Trust Corp. | 0.01% | Add +21.6% | 650,506 | $63.8M |
| Aberdeen Group plc | 0.11% | Reduce -10.0% | 591,314 | $58.0M |
| Bank of New York Mellon Corp | 0.01% | Add +121.7% | 569,109 | $55.8M |
| Candriam S.C.A. | 0.34% | Add +28.9% | 560,565 | $55.0M |
| Dimensional Fund Advisors LP | 0.01% | Add +7.8% | 513,695 | $50.4M |
| Franklin Resources Inc. | 0.01% | Reduce -17.7% | 482,289 | $47.3M |
| Fred Alger Management, LLC | 0.22% | Add +0.6% | 467,469 | $45.8M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +6.3% | 462,878 | $45.4M |
| Royal Bank of Canada | 0.01% | Reduce -3.4% | 430,534 | $42.2M |
| Federated Hermes, Inc. | 0.09% | Add +6.0% | 397,096 | $38.9M |
| Stephens Investment Management Group LLC | 0.54% | Add +5.5% | 392,660 | $38.5M |
| Thematics Asset Management | 1.51% | No change | 376,281 | $36.9M |
| Palisade Capital Management, LP | 1.07% | Reduce -1.7% | 356,215 | $34.9M |
| Primecap Management Co. | 0.02% | Reduce -7.7% | 344,403 | $33.8M |
| Fisher Asset Management | 0.01% | Add +43.2% | 316,309 | $31.0M |
| Victory Capital Management Inc. | 0.03% | Add +16.6% | 310,041 | $30.4M |
| Massachusetts Financial Services Co. | 0.01% | Reduce -5.7% | 298,124 | $29.2M |
| Principal Financial Group Inc. | 0.01% | Add +772.7% | 212,560 | $20.8M |
| FMR LLC | 0.00% | Add +1305.0% | 207,197 | $20.3M |
| Comerica Bank | 0.08% | Add +14.0% | 203,544 | $20.0M |
| Needham Investment Management LLC | 1.56% | Add +32.2% | 194,000 | $19.0M |
| Rhumbline Advisers | 0.02% | Add +127.2% | 178,788 | $17.5M |
| Jane Street Group, LLC | 0.02% | Reduce -42.4% | 174,924 | $17.2M |
| King Luther Capital Management Corp. | 0.07% | Add +5.4% | 165,423 | $16.2M |
| Eagle Asset Management Inc. | 0.09% | Reduce -12.7% | 162,785 | $15.9M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -31.3% | 161,645 | $15.9M |
| Goldman Sachs Group Inc. | 0.00% | Add +144.8% | 160,515 | $15.7M |
| Bank of America Corp. | 0.00% | Add +12.7% | 158,596 | $15.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +130.7% | 146,547 | $14.4M |
| Neuberger Berman Group LLC | 0.01% | Reduce -49.0% | 140,891 | $13.8M |
| Great Lakes Advisors, LLC | 0.12% | New | 136,043 | $13.3M |
| Mairs & Power Inc. | 0.12% | Reduce -5.7% | 130,908 | $12.8M |
| JPMorgan Chase & Co. | 0.00% | Add +70.1% | 129,538 | $12.7M |
| New York State Common Retirement Fund | 0.02% | Add +2.0% | 122,009 | $12.0M |
| Raymond James & Associates | 0.01% | Reduce -11.3% | 120,008 | $11.8M |
| Swiss National Bank | 0.01% | Add +3.9% | 112,000 | $11.0M |
| Corebridge Financial, Inc. | 0.06% | — | 102,350 | $10.0M |
| State of Wisconsin Investment Board | 0.03% | Reduce -6.7% | 100,078 | $9.8M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.04% | Add +4.8% | 92,041 | $9.0M |
| Homestead Advisers Corp | 0.21% | Reduce -5.9% | 88,877 | $8.7M |
| Legal & General Group Plc | 0.00% | Add +56.6% | 88,045 | $8.6M |
| Nicholas Company, Inc. | 0.14% | Reduce -5.5% | 85,960 | $8.4M |
| Envestnet Asset Management Inc. | 0.00% | Add +8.9% | 85,065 | $8.3M |
| Axiom Investors LLC | 0.07% | Reduce -29.8% | 83,285 | $8.2M |
| Norges Bank | 0.00% | Reduce -24.2% | 71,406 | $7.0M |
| Wells Fargo & Company | 0.00% | Reduce -2.7% | 70,660 | $6.9M |
| Retirement Systems of Alabama | 0.03% | New | 70,287 | $6.9M |
| Manufacturers Life Insurance Company, The | 0.01% | Add +120.4% | 69,886 | $6.9M |
| California Public Employees Retirement System | 0.00% | Add +60.7% | 67,341 | $6.6M |
| Mutual of America Capital Management LLC | 0.07% | Add +91.2% | 65,381 | $6.4M |
| Moody Aldrich Partners LLC | 1.25% | Add +121.5% | 65,326 | $6.4M |
| Sit Investment Associates Inc. | 0.14% | Add +6.5% | 63,543 | $6.2M |
| BNP Paribas Financial Markets | 0.01% | Reduce -40.1% | 62,279 | $6.1M |
| MetLife Investment Management, LLC | 0.04% | Add +122.3% | 61,932 | $6.1M |
| California State Teachers Retirement System | 0.01% | Add +1.7% | 55,592 | $5.5M |
| Voya Investment Management LLC | 0.01% | Reduce -59.2% | 53,816 | $5.3M |
| Acadian Asset Management LLC | 0.02% | Reduce -48.6% | 51,035 | $5.0M |
| ARK Investment Management | 0.04% | Reduce -9.5% | 50,530 | $5.0M |
| Sei Investments Co. | 0.01% | Add +29.5% | 39,899 | $3.9M |
| CANADA LIFE ASSURANCE Co | 0.01% | Add +658.1% | 38,991 | $3.8M |
| LPL Financial LLC | 0.00% | Reduce -1.4% | 35,078 | $3.4M |
| Barclays PLC | 0.00% | Reduce -33.9% | 32,911 | $3.2M |
| Epoch Investment Partners, Inc. | 0.01% | Reduce -0.9% | 31,375 | $3.1M |
| T. Rowe Price Associates Inc. | 0.00% | Add +19.8% | 30,830 | $3.0M |
| TD Asset Management Inc | 0.00% | Reduce -8.1% | 29,400 | $2.9M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.01% | — | 29,121 | $2.9M |
| Amalgamated Bank | 0.02% | Add +1378.0% | 27,594 | $2.7M |
| Deutsche Bank AG | 0.00% | Reduce -10.6% | 26,695 | $2.6M |
| Teachers Retirement System of the State of Kentucky | 0.02% | Add +59.9% | 26,261 | $2.6M |
| Lighthouse Investment Partners, LLC | 0.14% | New | 25,000 | $2.5M |
| Yousif Capital Management, LLC | 0.03% | New | 23,754 | $2.3M |
| QRG Capital Management, Inc. | 0.03% | Add +15.3% | 23,684 | $2.3M |
| UBS Group AG | 0.00% | Reduce -77.8% | 23,126 | $2.3M |
| Bank of Montreal | 0.00% | Reduce -72.5% | 21,900 | $2.2M |
| Select Equity Group, L.P. | 0.01% | Add +2.3% | 21,789 | $2.1M |
| State of New Jersey Common Pension Fund D | 0.01% | Reduce -38.6% | 21,297 | $2.1M |
| Ensign Peak Advisors, Inc | 0.00% | No change | 21,277 | $2.1M |
| Abn Amro Investment Solutions | 0.04% | New | 21,195 | $2.1M |
| Glenmede Trust Co. NA | 0.01% | Add +31.9% | 21,009 | $2.1M |
| Citigroup Inc. | 0.00% | Reduce -24.0% | 20,962 | $2.1M |
| State of Tennessee, Department of Treasury | 0.01% | New | 20,446 | $2.0M |
| Zions Bancorporation, N.A. | 0.15% | Reduce -3.4% | 19,167 | $1.9M |
| Natixis Advisors, LLC | 0.00% | Add +2.9% | 18,251 | $1.8M |
| First Trust Advisors LP | 0.00% | Reduce -66.6% | 18,019 | $1.8M |
| Ameritas Investment Partners, Inc. | 0.06% | Add +223.4% | 17,714 | $1.7M |
| Daiwa Securities Group Inc. | 0.01% | No change | 17,000 | $1.7M |
| Louisiana State Employees Retirement System | 0.03% | New | 16,100 | $1.6M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -48.6% | 15,968 | $1.6M |
| Arizona State Retirement System | 0.01% | Add +6.2% | 15,941 | $1.6M |
| Alyeska Investment Group, L.P. | 0.01% | Reduce -93.0% | 15,385 | $1.5M |
| STRS Ohio | 0.01% | Add +82.1% | 15,300 | $1.5M |
| State Board of Administration of Florida Retirement System | 0.00% | Add +6.2% | 15,263 | $1.5M |
| Pacer Advisors, Inc. | 0.00% | Add +32717.4% | 15,096 | $1.5M |
| Apriem Advisors | 0.18% | No change | 14,965 | $1.5M |
| Bradley Foster & Sargent Inc. | 0.03% | Reduce -1.5% | 14,630 | $1.4M |
| EDENTREE ASSET MANAGEMENT Ltd | 0.45% | No change | 14,496 | $1.4M |
| Cookson Peirce & Co. Inc. | 0.07% | New | 14,241 | $1.4M |
| Handelsbanken Fonder AB | 0.01% | Add +58.0% | 13,900 | $1.4M |
| Thrivent Financial for Lutherans | 0.00% | New | 13,760 | $1.4M |
| State of Michigan Retirement System | 0.01% | New | 13,700 | $1.3M |
| Pathstone Holdings, LLC | 0.01% | Add +12.1% | 13,575 | $1.3M |
| Osaic Holdings, Inc. | 0.00% | Add +401.8% | 13,498 | $1.3M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +11.3% | 12,894 | $1.3M |
| Vontobel Holding Ltd. | 0.00% | Reduce -8.9% | 12,788 | $1.3M |
| Northwestern Mutual Investment Management Company, LLC | 0.03% | New | 12,710 | $1.2M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.01% | New | 12,622 | $1.2M |
| NJ State Employees Deferred Compensation Plan | 0.15% | No change | 12,000 | $1.2M |
| Oregon Public Employees Retirement Fund | 0.02% | New | 11,800 | $1.2M |
| Cwm, LLC | 0.01% | Add +169.4% | 11,536 | $1.1M |
| New Mexico Educational Retirement Board | 0.04% | New | 11,500 | $1.1M |
| Creative Planning | 0.00% | Add +97.3% | 10,648 | $1.0M |
| ProShare Advisors LLC | 0.00% | Add +1.6% | 10,219 | $1.0M |
| Prescott Group Capital Management, L.L.C. | 0.15% | New | 10,000 | $981K |
| Harbor Capital Advisors, Inc. | 0.07% | Add +9.2% | 9,738 | $955K |
| Cresset Asset Management, LLC | 0.00% | New | 8,770 | $860K |
| New York State Teachers Retirement System | 0.00% | New | 8,400 | $824K |
| Illinois Municipal Retirement Fund | 0.01% | No change | 7,810 | $766K |
| Xponance LLC | 0.01% | Add +130.8% | 7,684 | $754K |
| Amundi | 0.00% | Add +1.7% | 7,349 | $721K |
| Tower Research Capital LLC (TRC) | 0.01% | Add +2308.5% | 7,105 | $697K |
| New York Life Investment Management LLC | 0.01% | Add +13.2% | 6,776 | $665K |
| Captrust Financial Advisors | 0.00% | Add +1.2% | 6,451 | $633K |
| Linden Thomas Advisory Services, LLC | 0.10% | New | 6,412 | $629K |
| Prudential Financial Inc. | 0.00% | Add +43.6% | 6,242 | $612K |
| State of Alaska, Department of Revenue | 0.01% | New | 6,190 | $607K |
| Stifel Financial Corp. | 0.00% | Reduce -14.4% | 6,156 | $604K |
| Jackson Square Capital, LLC | 0.15% | Reduce -2.2% | 6,033 | $592K |
| F/m Investments LLC | 0.02% | New | 5,975 | $586K |
| Algert Global LLC | 0.02% | New | 5,735 | $562K |
| Mirabella Financial Services LLP | 0.05% | New | 5,640 | $553K |
| Public Employees Retirement Association of Colorado | 0.00% | No change | 5,588 | $548K |
| US Bancorp \de | 0.00% | Add +119.7% | 5,494 | $539K |
| MML Investors Services, LLC | 0.00% | Add +17.6% | 5,342 | $524K |
| Guggenheim Capital LLC | 0.00% | New | 5,342 | $524K |
| Capital Impact Advisors, LLC | 1.35% | Reduce -65.3% | 4,883 | $479K |
| Schechter Investment Advisors, LLC | 0.04% | Reduce -0.2% | 4,733 | $464K |
| Securian Asset Management, Inc. | 0.01% | New | 4,542 | $445K |
| Blair William & Co. | 0.00% | New | 4,496 | $441K |
| Cullen/Frost Bankers, Inc. | 0.01% | Add +6.8% | 4,356 | $427K |
| Lindenwold Advisors, INC | 0.20% | No change | 3,799 | $373K |
| Sciencast Management LP | 0.13% | New | 3,790 | $372K |
| Capula Management Ltd | 0.00% | New | 3,777 | $370K |
| Crossmark Global Holdings, Inc. | 0.01% | New | 3,236 | $318K |
| Mackenzie Financial Corp. | 0.00% | No change | 3,169 | $311K |
| Orion Porfolio Solutions, LLC | 0.00% | New | 3,140 | $308K |
| Orion Portfolio Solutions, LLC | 0.00% | New | 3,140 | $308K |
| Raymond James Trust N.A. | 0.01% | Reduce -5.4% | 2,954 | $290K |
| Marco Investment Management LLC | 0.03% | No change | 2,945 | $289K |
| AQR Capital Management | 0.00% | Reduce -61.8% | 2,864 | $281K |
| Atria Investments, Inc | 0.00% | New | 2,829 | $277K |
| Profund Advisors LLC | 0.01% | New | 2,789 | $274K |
| O'shaughnessy Asset Management, LLC | 0.00% | Reduce -5.3% | 2,642 | $259K |
| Mariner, LLC | 0.00% | New | 2,607 | $256K |
| Hardy Reed LLC | 0.03% | No change | 2,570 | $252K |
| Sanctuary Advisors, LLC | 0.00% | — | 2,989 | $250K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | New | 2,326 | $228K |
| Shelton Capital Management | 0.01% | New | 2,281 | $224K |
| Susquehanna International Group, LLP | 0.00% | Reduce -91.4% | 2,125 | $208K |
| Deerfield Management Company, L.P. | 0.00% | New | 2,113 | $207K |
| Envestnet Portfolio Solutions, Inc. | 0.00% | New | 2,103 | $206K |
| PFW Advisors LLC | 0.07% | New | 2,084 | $204K |
| Ballentine Partners, LLC | 0.00% | New | 2,061 | $202K |
| Ostrum Asset Management | 0.02% | Add +2.4% | 2,023 | $198K |
| Nisa Investment Advisors, LLC | 0.00% | Add +2.4% | 1,998 | $196K |
| Natixis Investment Managers International | 0.01% | Reduce -9.1% | 1,764 | $173K |
| Smartleaf Asset Management LLC | 0.03% | Add +4.0% | 1,757 | $172K |
| KBC Group NV | 0.00% | Add +0.9% | 1,391 | $136K |
| Nomura Asset Management Co. Ltd. | 0.00% | Add +50.5% | 1,336 | $131K |
| Harvest Fund Management Co., Ltd | 0.01% | Add +482.4% | 1,188 | $116K |
| Hilltop National Bank | 0.04% | Add +1.8% | 1,109 | $109K |
| Van Eck Associates Corp. | 0.00% | Add +41.7% | 1,057 | $104K |
| Fifth Third Bancorp | 0.00% | Add +0.7% | 1,045 | $102K |
| PNC Financial Services Group, Inc. | 0.00% | Add +39.0% | 1,034 | $101K |
| FSC Wealth Advisors, LLC | 0.06% | Add +41.3% | 832 | $82K |
| Essex Investment Management Co. LLC | 0.01% | Reduce -12.7% | 746 | $73K |
| Global Retirement Partners, LLC | 0.00% | Add +11.1% | 579 | $57K |
| Signaturefd, LLC | 0.00% | Add +1.2% | 430 | $42K |
| GAMMA Investing LLC | 0.01% | Add +81.7% | 418 | $41K |
| Simplex Trading, LLC | 0.00% | New | 415 | $40K |
| Parallel Advisors, LLC | 0.00% | Add +15.9% | 371 | $36K |
| Principal Securities, Inc. | 0.00% | Add +47.8% | 334 | $33K |
| Clearstead Advisors, LLC | 0.00% | New | 269 | $26K |
| CIBC Private Wealth Group LLC | 0.00% | No change | 190 | $19K |
| TD Private Client Wealth LLC | 0.00% | No change | 179 | $18K |
| Lindbrook Capital, LLC | 0.00% | Add +77.1% | 147 | $14K |
| First Horizon Advisors, Inc. | 0.00% | Reduce -11.7% | 128 | $13K |
| Private Trust Co. NA | 0.00% | Add +15.6% | 126 | $12K |
| Farther Finance Advisors, LLC | 0.00% | Add +86.2% | 121 | $12K |
| Natixis | 0.00% | No change | 116 | $11K |
| Covestor Ltd | 0.01% | Add +0.9% | 116 | $11K |
| Allworth Financial LP | 0.00% | Add +50.0% | 117 | $10K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | No change | 102 | $10K |
| CI Investments Inc. | 0.00% | Reduce -4.6% | 103 | $10K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +27.5% | 102 | $9K |
| RFP Financial Group LLC | 0.00% | No change | 87 | $9K |
| Bessemer Group Inc. | 0.00% | No change | 77 | $8K |
| Quadrant Capital Group LLC | 0.00% | No change | 81 | $8K |
| Arax Advisory Partners | 0.00% | New | 68 | $7K |
| Avior Wealth Management, LLC | 0.00% | Reduce -13.3% | 65 | $6K |
| Benjamin F. Edwards & Company, Inc. | 0.00% | New | 59 | $6K |
| Innealta Capital, LLC | 0.00% | New | 53 | $5K |
| Your Advocates Ltd., LLP | 0.00% | New | 50 | $5K |
| Harel Insurance Investments & Financial Services Ltd. | 0.00% | Reduce -43.6% | 44 | $4K |
| Continuum Advisory, LLC | 0.00% | Add +42.9% | 40 | $4K |
| Parkside Financial Bank & Trust | 0.00% | New | 40 | $4K |
| Blue Trust, Inc. | 0.00% | Add +1333.3% | 43 | $4K |
| GPS Wealth Strategies Group, LLC | 0.00% | No change | 32 | $3K |
| Private Wealth Management Group, LLC | 0.00% | No change | 30 | $3K |
| Bell Investment Advisors, Inc | 0.00% | Add +3.6% | 29 | $3K |
| Huntington National Bank | 0.00% | Add +3.6% | 29 | $3K |
| UMB Bank, n.a. | 0.00% | New | 26 | $3K |
| Lazard Asset Management LLC | 0.00% | No change | 27 | $2K |
| CarsonAllaria Wealth Management, Ltd. | 0.00% | No change | 20 | $2K |
| Rothschild Investment LLC | 0.00% | Add +200.0% | 15 | $1K |
| Abich Financial Wealth Management LLC | 0.00% | New | 12 | $1K |
| Capital Advisors, Ltd. LLC | 0.00% | New | 6 | $1K |
| Riggs Asset Managment Co. Inc. | 0.00% | New | 10 | $981 |
| AdvisorNet Financial, Inc | 0.00% | New | 10 | $981 |
| Twin Tree Management, LP | 0.00% | New | 5 | $490 |
| Allspring Global Investments Holdings, LLC | 0.00% | New | 5 | $490 |
| TFC Financial Management, Inc. | 0.00% | New | 1 | $99 |
| MassMutual Private Wealth & Trust, FSB | 0.00% | New | 1 | $98 |
"% of holder's portfolio" is ALTR's weight in each manager's 13F, not the share of Altair Engineering Inc. Class A the manager owns.