Altair Engineering Inc. Class AALTR

13F holders, Q2 2024 (June 30)
240holders +7
56new positions
48sold out
4famous investors
$98.06avg. 13F price*

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

0100200300 Q1 2024: 233Q1 2024Q2 2024: 240Q2 2024Q3 2024: 252Q3 2024Q4 2024: 298Q4 2024Q1 2025: 3Q1 2025Q2 2025: 2Q2 2025Q3 2025: 1Q3 2025Q4 2025: 1Q4 2025Q1 2026: 1Q1 2026Q2 2026: 1Q2 2026

Total Exit/New Position Q1 2024 → Q2 2024

InstitutionsTotal Value
New Positions56$142.0M
Exits48$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.