Altair Engineering Ownership 2024 | Who Owns Altair Engineering Now?


OverviewForecastRevenueFinancialsChartTranscripts

Institutional Ownership

72.78%

Insider Ownership

2.53%

Retail Ownership

24.69%

Institutional Holders

240.00

Altair Engineering Institutional Shareholders


Institutional Shareholders by % of Total Shares

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
MATRIX CAPITAL MANAGEMENT COMPANY, LP15.05%9.28%12,430,000--1,219,134,400Jun 30, 2024
BLACKROCK INC.9.54%0.02%7,877,1102,594,12349.10%772,586,951Jun 30, 2024
VANGUARD GROUP INC7.63%0.01%6,300,946356,6616.00%617,996,783Jun 30, 2024
CONESTOGA CAPITAL ADVISORS, LLC3.01%3.66%2,488,56648,4851.99%244,078,553Jun 30, 2024
PICTET ASSET MANAGEMENT HOLDING SA2.89%0.27%2,386,187-236,802-9.03%234,033,180Jun 30, 2024
STATE STREET CORP2.41%0.01%1,988,368733,67258.47%195,019,133,000Jun 30, 2024
INVESCO LTD.1.79%0.03%1,478,754-87,484-5.59%145,036,193Jun 30, 2024
IMPAX ASSET MANAGEMENT GROUP PLC1.70%0.56%1,406,654-252,795-15.23%137,116,036Jun 30, 2024
BAMCO INC /NY/1.68%0.39%1,385,507--135,890,527Jun 30, 2024
GEODE CAPITAL MANAGEMENT, LLC1.66%0.01%1,370,792137,73111.17%134,472,439Jun 30, 2024
ALLIANCEBERNSTEIN L.P.1.57%0.04%1,293,851-89,870-6.49%126,900,906Jun 30, 2024
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.1.52%0.08%1,251,637-53,038-4.07%122,761,000Jun 30, 2024
JANUS HENDERSON GROUP PLC1.29%0.06%1,068,8228310.08%104,828,689Jun 30, 2024
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC1.13%0.24%933,818933,818100.00%91,588,869Jun 30, 2024
AMERIPRISE FINANCIAL INC1.00%0.02%830,038-17,344-2.05%81,410,126Jun 30, 2024
MORGAN STANLEY0.92%0.01%760,368-40,529-5.06%74,577,085Jun 30, 2024
WELLINGTON MANAGEMENT GROUP LLP0.88%0.01%729,039-13,698-1.84%71,504,145Jun 30, 2024
AXA S.A.0.87%0.21%715,538-12,829-1.76%70,179,967Jun 30, 2024
NORTHERN TRUST CORP0.79%0.01%650,506115,76021.65%63,801,628,000Jun 30, 2024
ABRDN PLC0.72%0.11%591,314-65,494-9.97%57,996,077Jun 30, 2024

Altair Engineering's largest institutional shareholder is MATRIX CAPITAL MANAGEMENT COMPANY, LP, holding 15.05% of the company's total share outstanding, currently valued at $1.22B. The top 10 institutional shareholders own together 47.36% of the company.

Institutional Shareholders by % of Total Assets

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
MATRIX CAPITAL MANAGEMENT COMPANY, LP15.05%9.28%12,430,000--1,219,134,400Jun 30, 2024
CONESTOGA CAPITAL ADVISORS, LLC3.01%3.66%2,488,56648,4851.99%244,078,553Jun 30, 2024
NEEDHAM INVESTMENT MANAGEMENT LLC0.23%1.56%194,00047,25032.20%19,027,520Jun 30, 2024
THEMATICS ASSET MANAGEMENT0.46%1.51%376,281--36,905,640Jun 30, 2024
CAPITAL IMPACT ADVISORS, LLC0.01%1.35%4,883-9,177-65.27%478,925Jun 30, 2024
MOODY ALDRICH PARTNERS LLC0.08%1.25%65,32635,832121.49%6,407,174Jun 30, 2024
PALISADE CAPITAL MANAGEMENT, LP0.43%0.95%356,215-6,157-1.70%34,937,600Jun 30, 2024
IMPAX ASSET MANAGEMENT GROUP PLC1.70%0.56%1,406,654-252,795-15.23%137,116,036Jun 30, 2024
STEPHENS INVESTMENT MANAGEMENT GROUP LLC0.48%0.54%392,66020,5275.52%38,512,093Jun 30, 2024
EDENTREE ASSET MANAGEMENT LTD0.02%0.45%14,496--1,420,753Jun 30, 2024
BAMCO INC /NY/1.68%0.39%1,385,507--135,890,527Jun 30, 2024
CANDRIAM S.C.A.0.68%0.33%560,565125,81628.94%54,977,650Jun 30, 2024
PICTET ASSET MANAGEMENT HOLDING SA2.89%0.27%2,386,187-236,802-9.03%234,033,180Jun 30, 2024
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC1.13%0.24%933,818933,818100.00%91,588,869Jun 30, 2024
FRED ALGER MANAGEMENT, LLC0.57%0.22%467,4692,9570.64%45,849,360Jun 30, 2024
HOMESTEAD ADVISERS CORP0.11%0.21%88,877-5,600-5.93%8,717,056Jun 30, 2024
AXA S.A.0.87%0.21%715,538-12,829-1.76%70,179,967Jun 30, 2024
LINDENWOLD ADVISORS, INC0.00%0.20%3,799--372,606Jun 30, 2024
APRIEM ADVISORS0.02%0.18%14,965--1,467,767Jun 30, 2024
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.0.01%0.15%10,00010,000100.00%981,000Jun 30, 2024

The largest Altair Engineering shareholder by % of total assets is MATRIX CAPITAL MANAGEMENT COMPANY, LP. The company owns 12.43M shares of Altair Engineering (ALTR), representing 9.28% of its total assets.

Institutional Buyers

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
BLACKROCK INC.9.54%0.02%7,877,1102,594,12349.10%772,586,951Jun 30, 2024
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC1.13%0.24%933,818933,818100.00%91,588,869Jun 30, 2024
STATE STREET CORP2.41%0.01%1,988,368733,67258.47%195,019,133,000Jun 30, 2024
VANGUARD GROUP INC7.63%0.01%6,300,946356,6616.00%617,996,783Jun 30, 2024
BANK OF NEW YORK MELLON CORP0.69%0.01%569,109312,448121.74%55,818,211Jun 30, 2024
FMR LLC0.25%0.00%207,197192,4501305.01%20,321,861Jun 30, 2024
PRINCIPAL FINANCIAL GROUP INC0.26%0.01%212,560188,203772.69%20,847,885,000Jun 30, 2024
GEODE CAPITAL MANAGEMENT, LLC1.66%0.01%1,370,792137,73111.17%134,472,439Jun 30, 2024
GREAT LAKES ADVISORS, LLC0.16%0.12%136,043136,043100.00%13,343,097Jun 30, 2024
CANDRIAM S.C.A.0.68%0.33%560,565125,81628.94%54,977,650Jun 30, 2024
NORTHERN TRUST CORP0.79%0.01%650,506115,76021.65%63,801,628,000Jun 30, 2024
COREBRIDGE FINANCIAL, INC.0.12%0.06%102,350102,350100.00%10,038,488Jun 30, 2024
RHUMBLINE ADVISERS0.22%0.02%178,788100,106127.23%17,535,504Jun 30, 2024
FISHER ASSET MANAGEMENT, LLC0.38%0.01%316,30995,44743.22%31,023,661Jun 30, 2024
GOLDMAN SACHS GROUP INC0.19%0.00%160,51594,959144.85%15,743,310Jun 30, 2024
UBS ASSET MANAGEMENT AMERICAS INC0.18%0.00%146,54783,027130.71%14,373,331Jun 30, 2024
NORGES BANK0.09%0.00%71,40671,406100.00%7,003,500Jun 30, 2024
RETIREMENT SYSTEMS OF ALABAMA0.09%0.03%70,28770,287100.00%6,893,749Jun 30, 2024
BANK OF AMERICA CORP /DE/0.19%0.00%158,59658,18157.94%15,555,095Jun 30, 2024
JPMORGAN CHASE & CO0.16%0.00%129,53853,39970.13%12,705,087Jun 30, 2024

As of Jun 30 2024, Altair Engineering's largest institutional buyer is BLACKROCK INC.. The company purchased 2.59M stocks of ALTR, valued at $772.59M.

Institutional Sellers

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
IMPAX ASSET MANAGEMENT GROUP PLC1.70%0.56%1,406,654-252,795-15.23%137,116,036Jun 30, 2024
PICTET ASSET MANAGEMENT HOLDING SA2.89%0.27%2,386,187-236,802-9.03%234,033,180Jun 30, 2024
ALYESKA INVESTMENT GROUP, L.P.0.02%0.01%15,385-205,384-93.03%1,508,961Jun 30, 2024
NEUBERGER BERMAN GROUP LLC0.17%0.01%140,891-135,209-48.97%13,818,589Jun 30, 2024
TREXQUANT INVESTMENT LP----112,826-100.00%-Jun 30, 2024
FRANKLIN RESOURCES INC0.58%0.01%482,289-103,582-17.68%47,302,906Jun 30, 2024
BALYASNY ASSET MANAGEMENT L.P.----90,968-100.00%-Jun 30, 2024
ALLIANCEBERNSTEIN L.P.1.57%0.04%1,293,851-89,870-6.49%126,900,906Jun 30, 2024
INVESCO LTD.1.79%0.03%1,478,754-87,484-5.59%145,036,193Jun 30, 2024
MARSHALL WACE, LLP----83,700-100.00%-Jun 30, 2024
UBS GROUP AG0.03%0.00%23,126-80,994-77.79%2,268,198Jun 30, 2024
VOYA INVESTMENT MANAGEMENT LLC0.07%0.01%53,816-78,138-59.22%5,278,273Jun 30, 2024
NUVEEN ASSET MANAGEMENT, LLC0.20%0.00%161,645-73,608-31.29%15,854,143Jun 30, 2024
SQUAREPOINT OPS LLC----66,669-100.00%-Jun 30, 2024
ABRDN PLC0.72%0.11%591,314-65,494-9.97%57,996,077Jun 30, 2024
MILLENNIUM MANAGEMENT LLC----62,900-100.00%-Jun 30, 2024
BANK OF MONTREAL /CAN/0.03%0.00%21,900-57,839-72.54%2,155,179Jun 30, 2024
TWO SIGMA INVESTMENTS, LP----55,023-100.00%-Jun 30, 2024
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.1.52%0.08%1,251,637-53,038-4.07%122,761,000Jun 30, 2024
ACADIAN ASSET MANAGEMENT LLC0.06%0.02%51,035-48,316-48.63%4,998,000Jun 30, 2024

As of Jun 30 2024, Altair Engineering's biggest institutional seller is IMPAX ASSET MANAGEMENT GROUP PLC. The company sold -0.25M shares of ALTR, valued at $137.12M.

Institutional New positions

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC1.13%0.24%933,818933,818100.00%91,588,869Jun 30, 2024
GREAT LAKES ADVISORS, LLC0.16%0.12%136,043136,043100.00%13,343,097Jun 30, 2024
COREBRIDGE FINANCIAL, INC.0.12%0.06%102,350102,350100.00%10,038,488Jun 30, 2024
NORGES BANK0.09%0.00%71,40671,406100.00%7,003,500Jun 30, 2024
RETIREMENT SYSTEMS OF ALABAMA0.09%0.03%70,28770,287100.00%6,893,749Jun 30, 2024
MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.0.04%0.01%29,12129,121100.00%2,856,188Jun 30, 2024
LIGHTHOUSE INVESTMENT PARTNERS, LLC0.03%0.10%25,00025,000100.00%2,452,000Jun 30, 2024
YOUSIF CAPITAL MANAGEMENT, LLC0.03%0.03%23,75423,754100.00%2,329,792Jun 30, 2024
STATE OF TENNESSEE, TREASURY DEPARTMENT0.02%0.01%20,44620,446100.00%2,005,344Jun 30, 2024
LOUISIANA STATE EMPLOYEES RETIREMENT SYSTEM0.02%0.03%16,10016,100100.00%1,579,088Jun 30, 2024
COOKSON PEIRCE & CO INC0.02%0.07%14,24114,241100.00%1,396,758Jun 30, 2024
THRIVENT FINANCIAL FOR LUTHERANS0.02%0.00%13,76013,760100.00%1,350,000Jun 30, 2024
STATE OF MICHIGAN RETIREMENT SYSTEM0.02%0.01%13,70013,700100.00%1,343,696Jun 30, 2024
NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC0.02%0.03%12,71012,710100.00%1,246,597Jun 30, 2024
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS0.02%0.01%12,62212,622100.00%1,237,966Jun 30, 2024
OREGON PUBLIC EMPLOYEES RETIREMENT FUND0.01%0.02%11,80011,800100.00%1,157,344Jun 30, 2024
NEW MEXICO EDUCATIONAL RETIREMENT BOARD0.01%0.04%11,50011,500100.00%1,128,000Jun 30, 2024
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.0.01%0.15%10,00010,000100.00%981,000Jun 30, 2024
CRESSET ASSET MANAGEMENT, LLC0.01%0.00%8,7708,770100.00%860,162Jun 30, 2024
NEW YORK STATE TEACHERS RETIREMENT SYSTEM0.01%0.00%8,4008,400100.00%824,000Jun 30, 2024
LINDEN THOMAS ADVISORY SERVICES, LLC0.01%0.10%6,4126,412100.00%628,889Jun 30, 2024
STATE OF ALASKA, DEPARTMENT OF REVENUE0.01%0.01%6,1906,190100.00%607,000Jun 30, 2024
F/M INVESTMENTS LLC0.01%0.02%5,9755,975100.00%586,028Jun 30, 2024
ALGERT GLOBAL LLC0.01%0.02%5,7355,735100.00%562,000Jun 30, 2024
MIRABELLA FINANCIAL SERVICES LLP0.01%0.04%5,6405,640100.00%553,171Jun 30, 2024
GUGGENHEIM CAPITAL LLC0.01%0.00%5,3425,342100.00%523,943Jun 30, 2024
SECURIAN ASSET MANAGEMENT, INC0.01%0.01%4,5424,542100.00%445,479Jun 30, 2024
BLAIR WILLIAM & CO/IL0.01%0.00%4,4964,496100.00%440,968Jun 30, 2024
SCIENCAST MANAGEMENT LP0.00%0.13%3,7903,790100.00%371,723Jun 30, 2024
CAPULA MANAGEMENT LTD0.00%0.00%3,7773,777100.00%370,448Jun 30, 2024
CROSSMARK GLOBAL HOLDINGS, INC.0.00%0.01%3,2363,236100.00%318,000Jun 30, 2024
ORION PORTFOLIO SOLUTIONS, LLC0.00%0.00%3,1403,140100.00%307,971Jun 30, 2024
ATRIA INVESTMENTS, INC0.00%0.00%2,8292,829100.00%277,469Jun 30, 2024
PROFUND ADVISORS LLC0.00%0.01%2,7892,789100.00%273,545Jun 30, 2024
MARINER, LLC0.00%0.00%2,6072,607100.00%255,695Jun 30, 2024
VANGUARD PERSONALIZED INDEXING MANAGEMENT, LLC0.00%0.00%2,3262,326100.00%228,134Jun 30, 2024
SHELTON CAPITAL MANAGEMENT0.00%0.01%2,2812,281100.00%223,720Jun 30, 2024
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)0.00%0.00%2,1132,113100.00%207,243Jun 30, 2024
ENVESTNET PORTFOLIO SOLUTIONS, INC.0.00%0.00%2,1032,103100.00%206,262Jun 30, 2024
PFW ADVISORS LLC0.00%0.07%2,0842,084100.00%204,399Jun 30, 2024
BALLENTINE PARTNERS, LLC0.00%0.00%2,0612,061100.00%202,143Jun 30, 2024
CLEARSTEAD ADVISORS, LLC0.00%0.00%269269100.00%26,384Jun 30, 2024
SRS CAPITAL ADVISORS, INC.0.00%0.00%6868100.00%6,670Jun 30, 2024
BENJAMIN F. EDWARDS & COMPANY, INC.0.00%0.00%5959100.00%6,000Jun 30, 2024
INNEALTA CAPITAL, LLC0.00%0.00%5353100.00%5,198Jun 30, 2024
YOUR ADVOCATES LTD., LLP0.00%0.00%5050100.00%4,904Jun 30, 2024
PARKSIDE FINANCIAL BANK & TRUST-0.00%4040100.00%3,922Jun 30, 2024
UMB BANK, N.A.--2626100.00%2,550Jun 30, 2024
ABICH FINANCIAL WEALTH MANAGEMENT LLC-0.00%1212100.00%1,177Jun 30, 2024
ADVISORNET FINANCIAL, INC-0.00%1010100.00%981Jun 30, 2024
RIGGS ASSET MANAGMENT CO. INC.-0.00%1010100.00%981Jun 30, 2024
CAPITAL ADVISORS, LTD. LLC-0.00%66100.00%1,000Jun 30, 2024
ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC--55100.00%490Jun 30, 2024
TWIN TREE MANAGEMENT, LP--55100.00%490Jun 30, 2024
TFC FINANCIAL MANAGEMENT, INC.--11100.00%99Jun 30, 2024

Altair Engineering's largest new institutional shareholder by number of shares is WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC, purchased 933.82K shares, valued at $91.59M, as of undefined.

Institutional Sold Out

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
TREXQUANT INVESTMENT LP----112,826-100.00%-Jun 30, 2024
BALYASNY ASSET MANAGEMENT L.P.----90,968-100.00%-Jun 30, 2024
MARSHALL WACE, LLP----83,700-100.00%-Jun 30, 2024
SQUAREPOINT OPS LLC----66,669-100.00%-Jun 30, 2024
MILLENNIUM MANAGEMENT LLC----62,900-100.00%-Jun 30, 2024
TWO SIGMA INVESTMENTS, LP----55,023-100.00%-Jun 30, 2024
CARLSON CAPITAL L P----42,101-100.00%-Jun 30, 2024
HILLSDALE INVESTMENT MANAGEMENT INC.----41,920-100.00%-Jun 30, 2024
AMERICAN INTERNATIONAL GROUP, INC.----27,064-100.00%-Jun 30, 2024
GSA CAPITAL PARTNERS LLP----24,852-100.00%-Jun 30, 2024
JEFFERIES FINANCIAL GROUP INC.----24,397-100.00%-Jun 30, 2024
MIRAE ASSET GLOBAL INVESTMENTS CO., LTD.----24,134-100.00%-Jun 30, 2024
ZACKS INVESTMENT MANAGEMENT----22,151-100.00%-Jun 30, 2024
EXODUSPOINT CAPITAL MANAGEMENT, LP----19,751-100.00%-Jun 30, 2024
LISANTI CAPITAL GROWTH, LLC----13,895-100.00%-Jun 30, 2024
POINT72 ASSET MANAGEMENT, L.P.----13,600-100.00%-Jun 30, 2024
CAMPBELL & CO INVESTMENT ADVISER LLC----13,557-100.00%-Jun 30, 2024
QUBE RESEARCH & TECHNOLOGIES LTD----11,673-100.00%-Jun 30, 2024
ENGINEERS GATE MANAGER LP----8,594-100.00%-Jun 30, 2024
EISLER CAPITAL (US) LLC----8,301-100.00%-Jun 30, 2024
HSBC HOLDINGS PLC----7,790-100.00%-Jun 30, 2024
QUEST PARTNERS LLC----7,737-100.00%-Jun 30, 2024
DARK FOREST CAPITAL MANAGEMENT LP----5,852-100.00%-Jun 30, 2024
MAN GROUP PLC----5,302-100.00%-Jun 30, 2024
TEACHER RETIREMENT SYSTEM OF TEXAS----4,672-100.00%-Jun 30, 2024
WOODLINE PARTNERS LP----3,629-100.00%-Jun 30, 2024
XTX TOPCO LTD----3,588-100.00%-Jun 30, 2024
ATOM INVESTORS LP----3,495-100.00%-Jun 30, 2024
PETRUS TRUST COMPANY, LTA----3,482-100.00%-Jun 30, 2024
GRAHAM CAPITAL MANAGEMENT, L.P.----3,167-100.00%-Jun 30, 2024
VERSOR INVESTMENTS LP----2,970-100.00%-Jun 30, 2024
KAPITALO INVESTIMENTOS LTDA----2,912-100.00%-Jun 30, 2024
METROPOLITAN LIFE INSURANCE CO/NY----2,882-100.00%-Jun 30, 2024
ENTRYPOINT CAPITAL, LLC----2,720-100.00%-Jun 30, 2024
CAPSTONE INVESTMENT ADVISORS, LLC----2,595-100.00%-Jun 30, 2024
OLYMPIAD RESEARCH LP----2,589-100.00%-Jun 30, 2024
HRT FINANCIAL LP----2,576-100.00%-Jun 30, 2024
PORTFOLIO STRATEGIES, INC.----2,570-100.00%-Jun 30, 2024
PRELUDE CAPITAL MANAGEMENT, LLC----2,485-100.00%-Jun 30, 2024
MQS MANAGEMENT LLC----2,358-100.00%-Jun 30, 2024
SG AMERICAS SECURITIES, LLC----2,054-100.00%-Jun 30, 2024
CORECAP ADVISORS, LLC----114-100.00%-Jun 30, 2024
YHB INVESTMENT ADVISORS, INC.----100-100.00%-Jun 30, 2024
QUARRY LP----80-100.00%-Jun 30, 2024
HARBOR INVESTMENT ADVISORY, LLC----23-100.00%-Jun 30, 2024

Altair Engineering's largest sold out institutional shareholder by shares sold is TREXQUANT INVESTMENT LP, sold -0.11M shares, valued at -, as of undefined.

Altair Engineering Mutual Fund Holders


Name% Total AssetsTotal SharesChange AmountChange %Date
CONESTOGA FUNDS1.32%1,659,60021,6751.32%Mar 31, 2024
Eaton Vance Enhanced Equity Income Fund II0.99%80,916--Mar 31, 2024
TAX MANAGED SMALL CAP PORTFOLIO0.59%30,776-13,196-30.01%Jan 31, 2024
SIT MID CAP GROWTH FUND INC0.46%24,800--Mar 28, 2024
ALGER FUNDS0.42%399,586-86,214-17.75%Jan 31, 2024
HARTFORD HLS SERIES FUND II INC0.34%84,38532,21461.75%Dec 31, 2023
Tax-Managed Multi-Cap Growth Portfolio0.29%7,902--Jan 31, 2024
NICHOLAS Ltd EDITION, INC.0.27%89,785--Dec 31, 2023
BlackRock Science & Technology Trust0.25%128,852--Mar 31, 2024
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)0.17%1,225,000-200,000-14.04%Mar 31, 2024
REYNOLDS FUNDS INC0.15%1,700--Mar 31, 2024
T. Rowe Price Small-Cap Stock Fund, Inc.0.14%511,10080,70018.75%Mar 31, 2024
PROFESSIONALLY MANAGED PORTFOLIOS0.11%8,500,000--Feb 29, 2024
BlackRock Science & Technology Trust II0.11%58,60145,070333.09%Mar 31, 2024
ROYCE VALUE TRUST, INC.0.10%80,700--Mar 31, 2024
SIT MUTUAL FUNDS INC0.07%27,658--Mar 28, 2024
VANGUARD VALLEY FORGE FUNDS0.07%37,753--Mar 31, 2024
NEEDHAM FUNDS INC0.07%146,75051,95054.80%Mar 31, 2024
STATE STREET INSTITUTIONAL FUNDS0.06%49,403-1,573-3.09%Mar 31, 2024
EntrepreneurShares Series Trust0.05%14,060-2,770-16.46%Dec 31, 2023
T. Rowe Price Quantitative Management Funds, Inc.0.05%154,300--Mar 31, 2024
Federated Hermes MDT Series0.04%92,800--Jan 31, 2024
T. Rowe Price Science & Technology Fund, Inc.0.04%51,800--Mar 31, 2024
Nuveen S&P 500 Dynamic Overwrite Fund0.03%993--Mar 31, 2024
PRIMECAP Odyssey Funds0.03%263,963-7,550-2.78%Jan 31, 2024
ALLSPRING VARIABLE TRUST0.02%15,162--Mar 31, 2024
CALVERT IMPACT FUND INC0.02%278,480-57,722-17.17%Mar 31, 2024
AB CAP FUND, INC.0.02%809,01540,8495.32%Jan 31, 2024
T. Rowe Price Equity Funds, Inc.0.02%238,70044,10022.66%Mar 31, 2024
OBERWEIS FUNDS0.02%20,200--Mar 31, 2024
HOMESTEAD FUNDS INC0.02%94,477--Mar 31, 2024
ROYCE FUND0.02%111,654--Mar 31, 2024
Zacks Trust0.02%1,499944170.09%Feb 29, 2024
VICTORY VARIABLE INSURANCE FUNDS0.02%8,370-5,110-37.91%Mar 31, 2024
QUANTITATIVE MASTER SERIES LLC0.02%95,965-1,919-1.96%Mar 31, 2024
LIBERTY ALL STAR GROWTH FUND INC.0.01%1,849--Dec 31, 2023
Voya EQUITY TRUST0.01%21,0836,47044.28%Feb 29, 2024
T. Rowe Price Small-Cap Value Fund, Inc.0.01%112,5006,6006.23%Mar 31, 2024
LKCM Funds0.01%54,1521,3422.54%Mar 31, 2024
FIRST TRUST EXCHANGE-TRADED ALPHADEX FUND0.01%54,78128,765110.57%Jan 31, 2024
DEUTSCHE DWS INVESTMENTS VIT FUNDS0.01%8,165-119-1.44%Mar 31, 2024
SARATOGA ADVANTAGE TRUST0.01%842161.94%Feb 29, 2024
PUTNAM INVESTMENT FUNDS0.01%62,80022,30055.06%Jan 31, 2024
ALGER FUNDS II0.01%2,802--Jan 31, 2024
Managed Account Series0.01%11,3096,240123.10%Jan 31, 2024
VANGUARD INDEX FUNDS0.01%4,817,781-677,717-12.33%Mar 31, 2024
VANGUARD EXPLORER FUND0.01%140,430123,197714.89%Jan 31, 2024
MFS SERIES TRUST I0.01%187,40863,93651.78%Feb 29, 2024
AIM GROWTH SERIES (INVESCO GROWTH SERIES)0.01%290,847-80,961-21.77%Mar 31, 2024
AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS, INC.0.01%20,900--Mar 31, 2024
EATON VANCE SPECIAL INVESTMENT TRUST0.01%13,540-3,309-19.64%Mar 31, 2024
Ark ETF Trust0.01%60,571-3,418-5.34%Jan 31, 2024
Calvert Responsible Index Series, Inc.0.01%12,315--Mar 31, 2024
Advantage Advisers Xanthus Fund, L.L.C.0.01%19,027--Mar 31, 2024
TIAA SEPARATE ACCOUNT VA 10.01%1,317--Mar 31, 2024
Lattice Strategies Trust0.00%7,656-6,760-46.89%Mar 31, 2024
John Hancock Exchange-Traded Fund Trust0.00%28,622-188-0.65%Jan 31, 2024
Putnam ETF Trust0.00%36,76916,16178.42%Feb 29, 2024
FIDELITY COMMONWEALTH TRUST0.00%13,4192171.64%Feb 29, 2024
NEUBERGER BERMAN EQUITY FUNDS0.00%39,171--Feb 29, 2024
Bernstein Fund Inc0.00%33,57033,570-Mar 31, 2024
FIDELITY CAPITAL TRUST0.00%43,000--Jan 31, 2024
FIDELITY SECURITIES FUND0.00%349,200--Jan 31, 2024
North Square Investments Trust0.00%35,044--Jan 31, 2024
SCHWAB CAPITAL TRUST0.00%150,1527950.53%Jan 31, 2024
Nushares ETF Trust0.00%25,786-40,955-61.36%Jan 31, 2024
MUTUAL OF AMERICA INSTITUTIONAL FUNDS INC0.00%1,8761,083136.57%Sep 30, 2020
JANUS INVESTMENT FUND0.00%1,024,850-125,491-10.91%Dec 31, 2023
FIDELITY PURITAN TRUST0.00%160,953--Jan 31, 2024
CLEARWATER INVESTMENT TRUST0.00%29,226--Mar 28, 2024
EATON VANCE GROWTH TRUST0.00%33,178--Feb 29, 2024
JNL VARIABLE FUND LLC0.00%16,609--Mar 31, 2020
Humankind Benefit Corp0.00%62-15-19.48%Dec 31, 2023
VICTORY PORTFOLIOS0.00%87,050-45,240-34.20%Mar 31, 2024
AIM COUNSELOR SERIES TRUST (INVESCO COUNSELOR SERIES TRUST)0.00%637,4348,3211.32%Feb 29, 2024
VANGUARD WORLD FUND0.00%635,985-41,398-6.11%Feb 29, 2024
IndexIQ ETF Trust0.00%5,8442604.66%Jan 31, 2024
AB VARIABLE PRODUCTS SERIES FUND, INC.0.00%11,360-1,138-9.11%Mar 31, 2024
FIDELITY CONCORD STREET TRUST0.00%512,31217,1663.47%Feb 29, 2024
Franklin Alternative Strategies Funds0.00%1,247,000--Feb 29, 2024
Harbor ETF Trust0.00%10,000-1,143-10.26%Jan 31, 2024
Calvert Variable Products, Inc.0.00%5,477--Mar 31, 2024
MFS VARIABLE INSURANCE TRUST0.00%61,911-105,390-62.99%Mar 31, 2024
FundVantage Trust0.00%29,583--Mar 28, 2024
HARTFORD SERIES FUND INC0.00%71,78471,784-Mar 31, 2024
Goldman Sachs ETF Trust II0.00%1,76930.17%Feb 29, 2024
MFS SERIES TRUST VII0.00%254--Jan 31, 2024
Voya VARIABLE PORTFOLIOS INC0.00%50,7562,0334.17%Mar 31, 2024
T. Rowe Price Spectrum Funds II, Inc.0.00%21,98521,985-Feb 29, 2024
Mutual of America Variable Insurance Portfolios, Inc.0.00%1,032-14-1.34%Sep 30, 2023
Principal Exchange-Traded Funds0.00%16,975-15,290-47.39%Mar 31, 2024
Virtus Investment Trust0.00%40,880--Mar 28, 2024
VANGUARD INSTITUTIONAL INDEX FUNDS0.00%34,041-2,644-7.21%Mar 31, 2024
GOLDMAN SACHS VARIABLE INSURANCE TRUST0.00%3,901--Mar 31, 2024
PUTNAM FUNDS TRUST0.00%189,348-77,352-29.00%Feb 29, 2024
FORUM FUNDS0.00%1,975--Jan 31, 2024
MUTUAL OF AMERICA INVESTMENT CORP0.00%34,195-2,780-7.52%Mar 31, 2024
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC0.00%3,790-88-2.27%Mar 31, 2024
EMPOWER FUNDS, INC.0.00%863,000--Mar 31, 2024
NORTHWESTERN MUTUAL SERIES FUND INC0.00%75,497-7,208-8.72%Mar 31, 2024

Altair Engineering's largest mutual fund holder by % of total assets is "CONESTOGA FUNDS", owning 1.66M shares, compromising 1.32% of its total assets.

Altair Engineering Institutional Ownership Trends


Institutional Holdings Trend

DateHoldingsChange %
30 Jun, 242401.27%
31 Mar, 242377.24%
31 Dec, 2322113.33%
30 Sep, 23195-8.45%
30 Jun, 232137.58%
31 Mar, 2319815.12%
31 Dec, 22172-1.71%
30 Sep, 22175-2.78%
30 Jun, 22180-3.23%
31 Mar, 221865.08%
31 Dec, 211772.91%
30 Sep, 211721.78%
30 Jun, 211693.05%
31 Mar, 2116410.81%
31 Dec, 201488.82%
30 Sep, 201368.80%
30 Jun, 2012514.68%
31 Mar, 201093.81%
31 Dec, 19105-17.32%
30 Sep, 19127-4.51%
30 Jun, 191331.53%
31 Mar, 191314.80%
31 Dec, 1812515.74%
30 Sep, 181080.93%
30 Jun, 1810787.72%
31 Mar, 185711.76%
31 Dec, 1751-

As of 30 Jun 24, 240 institutions are holding Altair Engineering's shares, representing an increase of 1.27% compared to the previous quarter.

Shares Outstanding Trend

DateShares OutstandingChange %
30 Jun, 2460,102,8567.69%
31 Mar, 2455,810,2181.68%
31 Dec, 2354,887,6964.75%
30 Sep, 2352,397,0370.95%
30 Jun, 2351,905,9090.44%
31 Mar, 2351,677,7804.29%
31 Dec, 2249,553,630-0.64%
30 Sep, 2249,870,411-0.55%
30 Jun, 2250,144,6941.41%
31 Mar, 2249,449,149-0.03%
31 Dec, 2149,463,7591.70%
30 Sep, 2148,637,1549.10%
30 Jun, 2144,578,7533.56%
31 Mar, 2143,046,4423.39%
31 Dec, 2041,635,9584.17%
30 Sep, 2039,970,6162.78%
30 Jun, 2038,890,9970.96%
31 Mar, 2038,522,2870.56%
31 Dec, 1938,308,016-23.66%
30 Sep, 1950,180,33854.56%
30 Jun, 1932,467,06818.49%
31 Mar, 1927,401,5862.10%
31 Dec, 1826,837,473-0.38%
30 Sep, 1826,939,5348.52%
30 Jun, 1824,823,68669.01%
31 Mar, 1814,687,72613.76%
31 Dec, 1712,911,110-

Altair Engineering (ALTR) has 60.10M shares outstanding as of 30 Jun 24, up 7.69% compared to the previous quarter.

Institutional Ownership Trend

DateOwnership %Change %
30 Jun, 2472.78%1.52%
31 Mar, 2469.25%1.49%
31 Dec, 2368.24%1.59%
30 Sep, 2365.51%1.56%
30 Jun, 2364.73%1.56%
31 Mar, 2364.44%1.69%
31 Dec, 2261.74%1.56%
30 Sep, 2262.96%1.56%
30 Jun, 2263.52%1.64%
31 Mar, 2262.23%1.48%
31 Dec, 2164.93%1.58%
30 Sep, 2164.21%1.83%
30 Jun, 2159.23%1.78%
31 Mar, 2157.66%1.78%
31 Dec, 2056.85%1.91%
30 Sep, 2054.52%1.92%
30 Jun, 2053.28%1.89%
31 Mar, 2053.04%1.85%
31 Dec, 1953.54%1.10%
30 Sep, 1969.92%3.38%
30 Jun, 1945.49%3.04%
31 Mar, 1938.71%2.45%
31 Dec, 1839.78%2.69%
30 Sep, 1838.48%2.69%
30 Jun, 1837.85%7.11%
31 Mar, 1823.08%4.77%
31 Dec, 1722.00%-

As of 30 Jun 24, Altair Engineering is held by 72.78% institutional shareholders, representing a 1.52% growth compared to 31 Mar 24.

Institutional Increased Positions Trend

DateIncreased PositionsChange %
30 Jun, 2415322.40%
31 Mar, 241253.31%
31 Dec, 2312122.22%
30 Sep, 2399-10.00%
30 Jun, 23110-1.79%
31 Mar, 2311219.15%
31 Dec, 229420.51%
30 Sep, 2278-20.41%
30 Jun, 2298-1.01%
31 Mar, 22991.02%
31 Dec, 219818.07%
30 Sep, 2183-4.60%
30 Jun, 2187-5.43%
31 Mar, 21924.55%
31 Dec, 208841.94%
30 Sep, 2062-16.22%
30 Jun, 207415.63%
31 Mar, 20643.23%
31 Dec, 1962-17.33%
30 Sep, 1975-15.73%
30 Jun, 198920.27%
31 Mar, 19748.82%
31 Dec, 1868-11.69%
30 Sep, 1877-16.30%
30 Jun, 1892109.09%
31 Mar, 1844-13.73%
31 Dec, 1751-

153 institutional shareholders have increased their position in ALTR stock as of 30 Jun 24 compared to 125 in the previous quarter (a 22.40% increase).

Institutional Reduced Positions Trend

DateReduced PositionsChange %
30 Jun, 2459-22.37%
31 Mar, 247610.14%
31 Dec, 236911.29%
30 Sep, 2362-15.07%
30 Jun, 237317.74%
31 Mar, 2362-
31 Dec, 2262-10.14%
30 Sep, 226921.05%
30 Jun, 2257-9.52%
31 Mar, 226318.87%
31 Dec, 2153-7.02%
30 Sep, 215711.76%
30 Jun, 21512.00%
31 Mar, 215016.28%
31 Dec, 2043-14.00%
30 Sep, 205035.14%
30 Jun, 203719.35%
31 Mar, 2031-
31 Dec, 193110.71%
30 Sep, 1928-3.45%
30 Jun, 1929-39.58%
31 Mar, 19482.13%
31 Dec, 184788.00%
30 Sep, 1825150.00%
30 Jun, 181025.00%
31 Mar, 188-
31 Dec, 17--

59 institutional shareholders have reduced their position in ALTR stock as of 30 Jun 24 compared to 76 in the previous quarter (a -22.37% decrease).

All Institutional Ownership Trend Data

DateHoldingsChange %Shares OutstandingChange %Ownership %Change %Increased PositionsChange %Reduced PositionsChange %
30 Jun, 242401.27%60,102,8567.69%72.78%1.52%15322.40%59-22.37%
31 Mar, 242377.24%55,810,2181.68%69.25%1.49%1253.31%7610.14%
31 Dec, 2322113.33%54,887,6964.75%68.24%1.59%12122.22%6911.29%
30 Sep, 23195-8.45%52,397,0370.95%65.51%1.56%99-10.00%62-15.07%
30 Jun, 232137.58%51,905,9090.44%64.73%1.56%110-1.79%7317.74%
31 Mar, 2319815.12%51,677,7804.29%64.44%1.69%11219.15%62-
31 Dec, 22172-1.71%49,553,630-0.64%61.74%1.56%9420.51%62-10.14%
30 Sep, 22175-2.78%49,870,411-0.55%62.96%1.56%78-20.41%6921.05%
30 Jun, 22180-3.23%50,144,6941.41%63.52%1.64%98-1.01%57-9.52%
31 Mar, 221865.08%49,449,149-0.03%62.23%1.48%991.02%6318.87%
31 Dec, 211772.91%49,463,7591.70%64.93%1.58%9818.07%53-7.02%
30 Sep, 211721.78%48,637,1549.10%64.21%1.83%83-4.60%5711.76%
30 Jun, 211693.05%44,578,7533.56%59.23%1.78%87-5.43%512.00%
31 Mar, 2116410.81%43,046,4423.39%57.66%1.78%924.55%5016.28%
31 Dec, 201488.82%41,635,9584.17%56.85%1.91%8841.94%43-14.00%
30 Sep, 201368.80%39,970,6162.78%54.52%1.92%62-16.22%5035.14%
30 Jun, 2012514.68%38,890,9970.96%53.28%1.89%7415.63%3719.35%
31 Mar, 201093.81%38,522,2870.56%53.04%1.85%643.23%31-
31 Dec, 19105-17.32%38,308,016-23.66%53.54%1.10%62-17.33%3110.71%
30 Sep, 19127-4.51%50,180,33854.56%69.92%3.38%75-15.73%28-3.45%
30 Jun, 191331.53%32,467,06818.49%45.49%3.04%8920.27%29-39.58%
31 Mar, 191314.80%27,401,5862.10%38.71%2.45%748.82%482.13%
31 Dec, 1812515.74%26,837,473-0.38%39.78%2.69%68-11.69%4788.00%
30 Sep, 181080.93%26,939,5348.52%38.48%2.69%77-16.30%25150.00%
30 Jun, 1810787.72%24,823,68669.01%37.85%7.11%92109.09%1025.00%
31 Mar, 185711.76%14,687,72613.76%23.08%4.77%44-13.73%8-
31 Dec, 1751-12,911,110-22.00%-51---

Altair Engineering Insider Shareholders Trades


Open Market Insider Trades

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource
Aug 06, 2024Harris Teresa Adirector-S-SaleSell620$82.57$51.19K21,242
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerS-SaleSell5,016$87.96$441.23K1,484
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerS-SaleSell5,017$87.96$441.32K1,483
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerS-SaleSell1,484$88.60$131.48K-
Jul 30, 2024JRS Investments LLC10 percent owner-S-SaleSell5,016$87.96$441.23K1,484
Jul 30, 2024JRS Investments LLC10 percent owner-S-SaleSell1,484$88.60$131.48K-
Jul 30, 2024James R. Scapa Declaration of Trust10 percent owner-S-SaleSell5,017$87.96$441.32K1,483
Jul 30, 2024James R. Scapa Declaration of Trust10 percent owner-S-SaleSell1,483$88.60$131.39K-

Open Market Insider Buys

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource

Insider Sells

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource
Aug 06, 2024Harris Teresa Adirector-S-SaleSell620$82.57$51.19K21,242
Aug 06, 2024Harris Teresa Adirector-M-ExemptSell620$4.52$2.80K13,880
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerC-ConversionSell6,500--10,267,110
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerC-ConversionSell6,500--6,652,682
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerS-SaleSell5,016$87.96$441.23K1,484
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerS-SaleSell5,017$87.96$441.32K1,483
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerS-SaleSell1,484$88.60$131.48K-
Jul 30, 2024JRS Investments LLC10 percent owner-C-ConversionSell6,500--6,652,682
Jul 30, 2024JRS Investments LLC10 percent owner-S-SaleSell5,016$87.96$441.23K1,484
Jul 30, 2024JRS Investments LLC10 percent owner-S-SaleSell1,484$88.60$131.48K-
Jul 30, 2024James R. Scapa Declaration of Trust10 percent owner-C-ConversionSell6,500--10,267,110
Jul 30, 2024James R. Scapa Declaration of Trust10 percent owner-S-SaleSell5,017$87.96$441.32K1,483
Jul 30, 2024James R. Scapa Declaration of Trust10 percent owner-S-SaleSell1,483$88.60$131.39K-

All Insider Owners Trades

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource
Aug 06, 2024Harris Teresa Adirector-M-ExemptBuy620--21,862
Aug 06, 2024Harris Teresa Adirector-S-SaleSell620$82.57$51.19K21,242
Aug 06, 2024Harris Teresa Adirector-M-ExemptSell620$4.52$2.80K13,880
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerC-ConversionSell6,500--10,267,110
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerC-ConversionSell6,500--6,652,682
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerC-ConversionBuy6,500--6,500
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerS-SaleSell5,016$87.96$441.23K1,484
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerS-SaleSell5,017$87.96$441.32K1,483
Jul 30, 2024Scapa James Ralphdirector, 10 percent owner, officer Chief Executive OfficerS-SaleSell1,484$88.60$131.48K-
Jul 30, 2024JRS Investments LLC10 percent owner-C-ConversionSell6,500--6,652,682
Jul 30, 2024JRS Investments LLC10 percent owner-C-ConversionBuy6,500--6,500
Jul 30, 2024JRS Investments LLC10 percent owner-S-SaleSell5,016$87.96$441.23K1,484
Jul 30, 2024JRS Investments LLC10 percent owner-S-SaleSell1,484$88.60$131.48K-
Jul 30, 2024James R. Scapa Declaration of Trust10 percent owner-C-ConversionSell6,500--10,267,110
Jul 30, 2024James R. Scapa Declaration of Trust10 percent owner-C-ConversionBuy6,500--6,500
Jul 30, 2024James R. Scapa Declaration of Trust10 percent owner-S-SaleSell5,017$87.96$441.32K1,483
Jul 30, 2024James R. Scapa Declaration of Trust10 percent owner-S-SaleSell1,483$88.60$131.39K-
Jul 16, 2024Buckner Stephanieofficer Chief Operating OfficerA-AwardBuy83$71.68$5.95K7,207
Jul 16, 2024Brown Matthew Charlesofficer Chief Financial OfficerA-AwardBuy83$71.68$5.95K56,567
Jul 16, 2024Gayle Brianofficer Chief Accounting OfficerA-AwardBuy83$71.68$5.95K16,640

The last insider sell of Altair Engineering's stock was made by Harris Teresa A on Aug 06 2024, selling 620 shares at $82.57 per share (valued at $51.19K).

Altair Engineering Insider Ownership Trends


All Insider Trades Trend

DateBuySellBuy/Sell Ratio
Q3 2024141593.33%
Q2 2024239324.73%
Q1 2024467958.23%
Q4 2023288333.73%
Q3 2023223268.75%
Q2 2023296942.03%
Q1 2023559160.44%
Q4 2022148175.00%
Q3 2022133433.33%
Q2 2022129133.33%
Q1 2022355366.04%
Q4 20214612237.70%
Q3 20215416333.13%
Q2 20215917633.52%
Q1 20216618336.07%
Q4 20207015844.30%
Q3 20204012133.06%
Q2 20202825112.00%
Q1 20202928103.57%
Q4 2019225143.14%

14 total buy trades, and 15 total sell trades (buy/sell ratio of 0.93%) were made by Altair Engineering's insiders, as of Q3 2024.

Open Market Insider Trades Trend

DateBuySellBuy/Sell Ratio
Q3 2024-9-
Q2 2024-74-
Q1 2024-59-
Q4 2023-53-
Q3 2023-17-
Q2 2023-41-
Q1 2023-70-
Q4 2022-4-
Q3 2022-1-
Q2 2022-3-
Q1 2022-43-
Q4 2021-80-
Q3 2021-105-
Q2 2021-123-
Q1 2021-128-
Q4 2020-101-
Q3 2020-79-
Q2 2020-13-
Q1 2020-18-
Q4 2019-30-

As of Q3 2024, Insider owners conducted 0 open market buy trades and 9 open market sell trades of Altair Engineering's stocks.

Altair Engineering Peer Ownership


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ALTR Ownership FAQ


Altair Engineering is owned by institutional shareholders (72.78%), insiders (2.53%), and public (24.69%). The largest institutional shareholder of Altair Engineering is MATRIX CAPITAL MANAGEMENT COMPANY, LP (15.05% of total shares) and the top mutual fund owner is CONESTOGA FUNDS (1.32% of total shares).

Altair Engineering's major institutional shareholders are MATRIX CAPITAL MANAGEMENT COMPANY, LP, BLACKROCK INC., VANGUARD GROUP INC, CONESTOGA CAPITAL ADVISORS, LLC, and PICTET ASSET MANAGEMENT HOLDING SA. The top five shareholders own together 38.12% of the company's share outstanding.

As of Jun 2024, there are 240 institutional shareholders of Altair Engineering.

MATRIX CAPITAL MANAGEMENT COMPANY, LP owns 12.43M shares of Altair Engineering, representing 15.05% of the company's total shares outstanding, valued at $1.22B (as of Jun 2024).

As of Jun 2024, BLACKROCK INC holds 7.88M shares of Altair Engineering (ALTR), compromising 9.54% of the company, valued at $772.59M.

VANGUARD GROUP INC is the third largest holder of Altair Engineering. The company owns 6.3M of the company's shares outstanding (worth $618M).