Altair Engineering Inc (ALTR) Ownership

111.85 ↑0.00 (0.00%)

As of December 31, 1969, 7:00pm EST.

Institutions
Mutual Funds

Institutional Ownership

Matrix Capital Management Company, LLC is the biggest individual institutional holder of Altair Engineering Inc (ALTR), owning a total of 12.4 million shares. Combined, the top 61 institutional holders of ALTR own 72.71% of the company with a total of 62 million shares.

In the latest ownership report on December 31st 2024, the top 61 institutional holders increased their combined ownership of ALTR by 899 thousand shares. 26 institutions bought 6,008,862 total additional shares and increased their ownership by an average of 604.71%. However 14 institutions sold 5,110,054 total shares and decreased their ownership by an average of 27.44%.

Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of Altair Engineering increased by a net total of 898,808 in the latest quarter.

Institution Ownership Chart

Latest Institutional Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Matrix Capital Management Company, LLC	14.488%	0.000%	12,430,000	0	2024-12-31
BlackRock Inc	8.717%	-7.035%	7,478,856	-565,929	2024-12-31
Vanguard Group Inc	8.036%	4.829%	6,894,230	317,575	2024-12-31
State Street Corp	2.474%	3.328%	2,122,319	68,362	2024-12-31
Geode Capital Management, LLC	1.625%	-2.090%	1,394,124	-29,756	2024-12-31
Conestoga Capital Advisors, LLC	1.297%	-55.896%	1,112,548	-1,410,003	2024-12-31
AllianceBernstein L.P.	1.243%	-16.102%	1,066,016	-204,587	2024-12-31
Goldman Sachs Group Inc	1.061%	164.660%	909,907	566,105	2024-12-31
Northern Trust Corp	0.876%	9.213%	751,191	63,368	2024-12-31
Candriam Luxembourg S.C.A.	0.716%	-12.325%	614,335	-86,363	2024-12-31
Dimensional Fund Advisors, Inc.	0.690%	2.174%	591,573	12,585	2024-12-31
Magnetar Financial LLC	0.664%	0.000%	569,534	569,534	2024-12-31
aberdeen group PLC	0.661%	0.000%	566,936	0	2024-12-31
abrdn PLC	0.661%	0.000%	566,936	0	2024-12-31
JPMorgan Chase & Co	0.661%	105.686%	566,791	291,229	2024-12-31
Millennium Management LLC	0.653%	0.000%	560,612	560,612	2024-12-31
Morgan Stanley - Brokerage Accounts	0.639%	-20.679%	547,863	-142,827	2024-12-31
BAMCO Inc	0.628%	-57.200%	539,002	-720,342	2024-12-31
Charles Schwab Investment Management Inc	0.591%	0.219%	506,579	1,109	2024-12-31
Cnh Partners, LLC	0.569%	0.000%	487,904	487,904	2024-12-31
Bank of New York Mellon Corp	0.492%	-10.383%	421,883	-48,877	2024-12-31
Man Group PLC	0.459%	0.000%	393,713	393,713	2024-12-31
UBS Asset Mgmt Americas Inc	0.444%	200.965%	381,061	254,448	2024-12-31
Royal Bank of Canada	0.425%	-12.171%	364,814	-50,554	2024-12-31
NORGES BANK	0.405%	386.441%	347,348	275,942	2024-12-31
Schonfeld Strategic Advisors LLC	0.386%	13,097.800%	331,528	329,016	2024-12-31
Tudor Investment Corp Et AL	0.370%	0.000%	316,994	316,994	2024-12-31
Farallon Capital Management, L.L.C.	0.329%	0.000%	282,000	282,000	2024-12-31
Needham Investment Management, LLC	0.262%	-2.808%	225,000	-6,500	2024-12-31
Canada Pension Plan Investment Board	0.260%	0.000%	222,600	222,600	2024-12-31
Westchester Capital Management LLC	0.245%	0.000%	210,020	210,020	2024-12-31
Ameriprise Financial Inc	0.237%	-70.500%	203,035	-485,223	2024-12-31
Hudson Bay Capital Management LP	0.236%	0.000%	202,091	202,091	2024-12-31
UBS Group AG	0.224%	460.152%	192,502	158,136	2024-12-31
HSBC Holdings PLC	0.211%	0.000%	180,621	180,621	2024-12-31
Nuveen Asset Management, LLC	0.197%	4.348%	169,113	7,047	2024-12-31
Comerica Bank	0.190%	-18.423%	163,222	-36,862	2024-12-31
Amvescap Plc.	0.102%	-93.753%	87,830	-1,318,131	2024-12-31
Envestnet Asset Management Inc	0.094%	-4.820%	80,956	-4,100	2024-12-31
Bank of Montreal	0.082%	466.174%	70,047	57,675	2024-12-31
Pentwater Capital Management LP	0.081%	0.000%	69,362	69,362	2024-12-31
Susquehanna International Group, LLP	0.080%	816.515%	68,262	60,814	2024-12-31
Sit Investment Associates Inc	0.074%	0.000%	63,543	0	2024-12-31
Polar Asset Management Partners	0.058%	0.000%	50,000	50,000	2024-12-31

Top Institutions

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Matrix Capital Management Company, LLC	14.488%	0.000%	12,430,000	0	2024-12-31
BlackRock Inc	8.717%	-7.035%	7,478,856	-565,929	2024-12-31
Vanguard Group Inc	8.036%	4.829%	6,894,230	317,575	2024-12-31
Pictet Asset Manangement SA	2.659%	-4.643%	2,275,399	-110,788	2024-09-30
State Street Corp	2.474%	3.328%	2,122,319	68,362	2024-12-31
Eaton Vance Management	1.996%	-0.919%	1,597,885	-14,813	2022-09-30
Neuberger Berman Group LLC	1.867%	-5.773%	1,495,152	-91,596	2022-09-30
William Blair Investment Management, LLC	1.720%	57.545%	1,471,184	537,366	2024-09-30
Geode Capital Management, LLC	1.625%	-2.090%	1,394,124	-29,756	2024-12-31
Impax Asset Management Group PLC	1.585%	-3.301%	1,360,221	-46,433	2024-09-30
State Street Corporation	1.478%	1.891%	1,254,696	23,286	2024-03-31
Conestoga Capital Advisors, LLC	1.297%	-55.896%	1,112,548	-1,410,003	2024-12-31
HHG PLC	1.252%	0.168%	1,070,621	1,799	2024-09-30
AllianceBernstein L.P.	1.243%	-16.102%	1,066,016	-204,587	2024-12-31
T. Rowe Price Investment Management,Inc.	1.148%	-21.540%	982,039	-269,598	2024-09-30
Goldman Sachs Group Inc	1.061%	164.660%	909,907	566,105	2024-12-31
Northern Trust Corp	0.876%	9.213%	751,191	63,368	2024-12-31
AXA SA	0.827%	-1.173%	707,144	-8,394	2024-09-30
Wellington Management Company LLP	0.821%	-3.629%	702,581	-26,458	2024-09-30
Bain Capital Public Equity Management II, LLC	0.826%	0.000%	686,009	686,009	2023-12-31
Candriam Luxembourg S.C.A.	0.716%	-12.325%	614,335	-86,363	2024-12-31
Dimensional Fund Advisors, Inc.	0.690%	2.174%	591,573	12,585	2024-12-31
Franklin Resources Inc	0.690%	12,262.800%	585,871	581,132	2024-03-31
Magnetar Financial LLC	0.664%	0.000%	569,534	569,534	2024-12-31
aberdeen group PLC	0.661%	0.000%	566,936	0	2024-12-31
abrdn PLC	0.661%	0.000%	566,936	0	2024-12-31
JPMorgan Chase & Co	0.661%	105.686%	566,791	291,229	2024-12-31
Millennium Management LLC	0.653%	0.000%	560,612	560,612	2024-12-31
Morgan Stanley - Brokerage Accounts	0.639%	-20.679%	547,863	-142,827	2024-12-31
Fred Alger Management, LLC	0.668%	5.707%	545,796	29,467	2023-09-30
BAMCO Inc	0.628%	-57.200%	539,002	-720,342	2024-12-31
Charles Schwab Investment Management Inc	0.591%	0.219%	506,579	1,109	2024-12-31
Credit Suisse First Boston (CSFB)	0.622%	116.037%	505,127	271,312	2023-03-31
Cnh Partners, LLC	0.569%	0.000%	487,904	487,904	2024-12-31
PRIMECAP Management Company	0.592%	-10.844%	480,950	-58,500	2023-06-30
Palisade Capital Management LLc	0.565%	2.890%	458,601	12,882	2023-03-31
Bank of New York Mellon Corp	0.492%	-10.383%	421,883	-48,877	2024-12-31
Federated Hermes Inc	0.503%	24.876%	408,871	81,450	2023-06-30
Man Group PLC	0.459%	0.000%	393,713	393,713	2024-12-31
UBS Asset Mgmt Americas Inc	0.444%	200.965%	381,061	254,448	2024-12-31
Royal Bank of Canada	0.425%	-12.171%	364,814	-50,554	2024-12-31
NORGES BANK	0.405%	386.441%	347,348	275,942	2024-12-31
Schonfeld Strategic Advisors LLC	0.386%	13,097.800%	331,528	329,016	2024-12-31
Tudor Investment Corp Et AL	0.370%	0.000%	316,994	316,994	2024-12-31
Farallon Capital Management, L.L.C.	0.329%	0.000%	282,000	282,000	2024-12-31
Needham Investment Management, LLC	0.262%	-2.808%	225,000	-6,500	2024-12-31
Canada Pension Plan Investment Board	0.260%	0.000%	222,600	222,600	2024-12-31
Westchester Capital Management LLC	0.245%	0.000%	210,020	210,020	2024-12-31
Ameriprise Financial Inc	0.237%	-70.500%	203,035	-485,223	2024-12-31
Hudson Bay Capital Management LP	0.236%	0.000%	202,091	202,091	2024-12-31
UBS Group AG	0.224%	460.152%	192,502	158,136	2024-12-31
HSBC Holdings PLC	0.211%	0.000%	180,621	180,621	2024-12-31
Nuveen Asset Management, LLC	0.197%	4.348%	169,113	7,047	2024-12-31
Comerica Bank	0.190%	-18.423%	163,222	-36,862	2024-12-31
Amvescap Plc.	0.102%	-93.753%	87,830	-1,318,131	2024-12-31
Envestnet Asset Management Inc	0.094%	-4.820%	80,956	-4,100	2024-12-31
Bank of Montreal	0.082%	466.174%	70,047	57,675	2024-12-31
Pentwater Capital Management LP	0.081%	0.000%	69,362	69,362	2024-12-31
Susquehanna International Group, LLP	0.080%	816.515%	68,262	60,814	2024-12-31
Sit Investment Associates Inc	0.074%	0.000%	63,543	0	2024-12-31
Polar Asset Management Partners	0.058%	0.000%	50,000	50,000	2024-12-31

Mutual Fund Ownership

iShares Core S&P Mid-Cap ETF is the biggest individual fund holder of Altair Engineering Inc (ALTR), owning a total of 1.9 million shares. Combined, the top 85 mutual fund holders of ALTR own 43.25% of the company with a total of 36.6 million shares.

In the latest ownership report on February 28th 2025, the top 85 fund holders increased their combined ownership of ALTR by 186 thousand shares. 13 funds bought 98,397 total additional shares and increased their ownership by an average of 6.31%. However 14 funds sold 284,263 total shares and decreased their ownership by an average of 7.76%.

Overall this is a negative sign as the number of shares owned by the top 20 mutual funds holding Altair Engineering decreased by a net total of -185,866 in the latest report.

Mutual Funds Chart

Latest Mutual Fund Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
iShares Core S&P Mid-Cap ETF	2.265%	0.075%	1,943,605	1,449	2025-02-28
Vanguard Total Stock Mkt Idx Inv	2.194%	0.291%	1,882,410	5,458	2025-02-28
Vanguard Small Cap Index	1.779%	0.081%	1,526,118	1,239	2025-02-28
iShares Russell 2000 ETF	1.639%	-1.160%	1,406,091	-16,498	2025-02-28
Vanguard Information Technology ETF	1.191%	0.270%	1,022,118	2,748	2025-02-28
Vanguard Institutional Extnd Mkt Idx Tr	1.056%	-0.020%	905,986	-180	2025-02-28
Vanguard Small Cap Growth Index Inv	0.999%	-0.596%	856,829	-5,134	2025-02-28
BlackRock Event Driven Equity Instl	0.942%	6.895%	807,744	52,101	2025-02-28
Fidelity Small Cap Index	0.628%	0.405%	538,599	2,174	2025-02-28
Candriam Eqs L Rbtc&Innov Tech I USD Cap	0.603%	0.000%	517,130	0	2025-02-28
iShares Russell 2000 Growth ETF	0.565%	-0.118%	484,739	-572	2025-02-28
SPDR® S&P MIDCAP 400 ETF Trust	0.563%	0.960%	482,930	4,593	2025-02-28
abrdn Global Smaller Companies I Acc	0.472%	0.000%	405,020	0	2025-02-28
State St Russell Sm/Mid Cp® Indx NL Cl C	0.380%	0.122%	327,482	400	2025-02-28
Fidelity Extended Market Index	0.379%	-0.356%	325,281	-1,162	2025-02-28
Impax Specialists Strategy Composite	0.301%	-12.459%	258,234	-36,752	2025-02-28
Vanguard Russell 2000 ETF	0.290%	2.742%	248,526	6,632	2025-02-28
Putnam Small Cap Growth A	0.265%	-13.783%	227,688	-36,400	2025-02-28
DFA US Small Cap I	0.231%	-9.938%	197,787	-21,824	2025-02-28
Impax Environmental Markets Ord	0.145%	-55.904%	124,594	-157,955	2025-02-28
Fidelity Total Market Index	0.128%	-0.770%	109,731	-851	2025-02-28
Fidelity Series Total Market Index	0.092%	0.221%	78,753	174	2025-02-28
AB Merger Arbitrage S1 USD	0.086%	0.000%	74,168	0	2025-02-28
Nuveen Small Cap Blend Idx R6	0.082%	0.000%	70,469	0	2025-02-28
Dunham Monthly Distribution A	0.078%	0.000%	66,817	0	2025-02-28
EQ/2000 Managed Volatility IB	0.074%	0.000%	63,487	0	2025-02-28
VALIC Company I Mid Cap Index	0.066%	-2.058%	56,303	-1,183	2025-02-28
Nuveen Equity Index R6	0.063%	30.971%	54,323	12,846	2025-02-28
EQ/Mid Cap Index IB	0.059%	-0.778%	50,507	-396	2025-02-28
Spartan Small Cap Index Pool	0.055%	-5.353%	47,348	-2,678	2025-02-28
Spartan Small Cap Index Pool K	0.055%	-5.353%	47,348	-2,678	2025-02-28
Carmignac Pf Merger Arb Plus I EUR Acc	0.049%	0.000%	41,861	0	2025-02-28
Fidelity Small Cap Growth Index	0.040%	2.253%	34,273	755	2025-02-28
AltShares Merger Arbitrage ETF	0.034%	36.701%	29,157	7,828	2025-02-28

Top Mutual Funds

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
iShares Core S&P Mid-Cap ETF	2.265%	0.075%	1,943,605	1,449	2025-02-28
Vanguard Total Stock Mkt Idx Inv	2.194%	0.291%	1,882,410	5,458	2025-02-28
Vanguard US Total Market Shares ETF	2.065%	-3.000%	1,771,534	-54,792	2024-09-30
Pictet - Robotics I dy EUR	1.812%	-31.075%	1,550,534	-699,046	2024-10-31
Vanguard Small Cap Index	1.779%	0.081%	1,526,118	1,239	2025-02-28
iShares Russell 2000 ETF	1.639%	-1.160%	1,406,091	-16,498	2025-02-28
Calvert Small-Cap A	1.306%	3.229%	1,045,323	32,696	2023-01-31
Vanguard Information Technology ETF	1.191%	0.270%	1,022,118	2,748	2025-02-28
Calvert US Small-Cap SMA	1.265%	212,191.000%	1,012,627	1,012,150	2022-09-30
Calvert US Small-Cap Strategy	1.265%	0.000%	1,012,627	0	2022-12-31
Vanguard Institutional Extnd Mkt Idx Tr	1.056%	-0.020%	905,986	-180	2025-02-28
Pictet-Clean Energy Transition I USD	1.087%	0.432%	896,599	3,856	2023-08-31
Pictet-Clean Energy I USD	1.086%	-3.428%	870,309	-30,895	2022-05-31
Vanguard Small Cap Growth Index Inv	0.999%	-0.596%	856,829	-5,134	2025-02-28
Neuberger Berman Genesis Inv	1.034%	-7.127%	828,409	-63,575	2022-09-30
BlackRock Event Driven Equity Instl	0.942%	6.895%	807,744	52,101	2025-02-28
Vanguard Extended Market Index Investor	0.906%	-0.100%	736,329	-735	2023-08-31
Baron Opp. Small Cap Growth Strategy	0.843%	-6.667%	700,000	-50,000	2023-12-31
Baron Small Cap Retail	0.843%	-6.667%	700,000	-50,000	2023-12-31
Janus Henderson US SMID Cap Growth	0.750%	0.000%	641,818	0	2024-09-30
BNP Paribas Climate Impact Privl C	0.766%	-0.964%	636,014	-6,189	2024-05-31
Threadneedle (Lux) Glb Smlr Coms IE	0.744%	0.000%	607,566	0	2023-10-31
Invesco Discovery A	0.703%	0.000%	599,373	0	2024-10-31
Invesco OFI Small Cap Growth	0.701%	7.138%	599,373	39,933	2024-09-30
CT (Lux) Glb Smlr Coms IE	0.678%	0.000%	562,685	0	2024-05-31
Fidelity Small Cap Index	0.628%	0.405%	538,599	2,174	2025-02-28
Candriam Eqs L Rbtc&Innov Tech I USD Cap	0.603%	0.000%	517,130	0	2025-02-28
Conestoga Small Cap Investors	0.589%	-60.998%	505,130	-790,000	2024-12-31
iShares Russell 2000 Growth ETF	0.565%	-0.118%	484,739	-572	2025-02-28
SPDR® S&P MIDCAP 400 ETF Trust	0.563%	0.960%	482,930	4,593	2025-02-28
Impax Climate Strategy	0.531%	-23.241%	455,131	-137,806	2024-12-31
BNP Paribas Climate Change Privl C	0.517%	-15.822%	443,240	-83,313	2024-12-31
Conestoga Small Cap Growth	0.510%	-28.450%	439,352	-174,696	2024-12-31
Janus Henderson Triton D	0.483%	-35.646%	413,035	-228,783	2024-11-30
abrdn Global Smaller Companies I Acc	0.472%	0.000%	405,020	0	2025-02-28
Belfius Equities Rob&InnovTech C$ Cap	0.429%	-0.013%	367,794	-48	2024-10-31
AB Small Cap Growth A	0.399%	-16.568%	342,665	-68,047	2024-12-31
Thematics AI and Robotics I/A USD	0.386%	0.566%	331,249	1,865	2024-06-30
State St Russell Sm/Mid Cp® Indx NL Cl C	0.380%	0.122%	327,482	400	2025-02-28
Fidelity Extended Market Index	0.379%	-0.356%	325,281	-1,162	2025-02-28
Baron Growth Retail	0.348%	-58.621%	300,000	-425,000	2024-12-31
Baron Small Cap Growth Strategy	0.348%	-58.621%	300,000	-425,000	2024-12-31
Putnam US Small Cap Growth Equity	0.344%	-2.412%	295,388	-7,300	2024-12-31
Putnam US Small Cap Growth Managed Acct	0.344%	-2.412%	295,388	-7,300	2024-12-31
Impax Specialists Strategy Composite	0.301%	-12.459%	258,234	-36,752	2025-02-28
Vanguard Russell 2000 ETF	0.290%	2.742%	248,526	6,632	2025-02-28
Man Event Driven Alternative IN USD	0.271%	5.166%	232,374	11,414	2024-12-31
Putnam Small Cap Growth A	0.265%	-13.783%	227,688	-36,400	2025-02-28
DFA US Small Cap I	0.231%	-9.938%	197,787	-21,824	2025-02-28
The Merger Fund A	0.197%	0.000%	169,269	169,269	2024-12-31
Deka-Industrie 4.0 CF	0.187%	-11.111%	160,000	-20,000	2024-11-30
PRIMECAP Odyssey Growth	0.183%	-31.728%	156,673	-72,810	2024-12-31
NT R2000 Growth Index Fund - NL	0.158%	-6.992%	135,823	-10,211	2024-12-31
Impax Environmental Markets Ord	0.145%	-55.904%	124,594	-157,955	2025-02-28
Candriam Global Equities Climate Action	0.139%	38.485%	119,330	33,162	2024-09-30
Northern Trust Russell 2000 Growth Index	0.136%	-4.875%	116,715	-5,981	2024-12-31
NT R2000 Growth Index Fund - L	0.136%	-4.875%	116,715	-5,981	2024-12-31
Fidelity Total Market Index	0.128%	-0.770%	109,731	-851	2025-02-28
Belfius Equities Climate C Cap	0.112%	7.879%	95,644	6,985	2024-10-31
Nicholas Limited Edition I	0.099%	0.000%	84,870	0	2024-12-31
Nicholas Small-Cap Growth Equity	0.099%	0.000%	84,870	0	2024-12-31
Fidelity Series Total Market Index	0.092%	0.221%	78,753	174	2025-02-28
AB Merger Arbitrage S1 USD	0.086%	0.000%	74,168	0	2025-02-28
Nuveen Small Cap Blend Idx R6	0.082%	0.000%	70,469	0	2025-02-28
Fidelity Canadian Large Cap Sr B	0.082%	0.000%	70,000	70,000	2024-12-31
Homestead Small Company Stock	0.078%	-10.084%	66,877	-7,500	2024-12-31
Dunham Monthly Distribution A	0.078%	0.000%	66,817	0	2025-02-28
EQ/2000 Managed Volatility IB	0.074%	0.000%	63,487	0	2025-02-28
LKCM Small Cap Core Composite	0.073%	9.081%	62,752	5,224	2024-12-31
VALIC Company I Mid Cap Index	0.066%	-2.058%	56,303	-1,183	2025-02-28
Nuveen Equity Index R6	0.063%	30.971%	54,323	12,846	2025-02-28
Candriam Sustainable Eq Fut Mblty V $Acc	0.063%	0.000%	54,309	0	2024-10-31
Belfius Equities Move C Cap	0.063%	0.211%	54,066	114	2024-10-31
EQ/Mid Cap Index IB	0.059%	-0.778%	50,507	-396	2025-02-28
Spartan Small Cap Index Pool	0.055%	-5.353%	47,348	-2,678	2025-02-28
Spartan Small Cap Index Pool K	0.055%	-5.353%	47,348	-2,678	2025-02-28
Carmignac Pf Merger Arb Plus I EUR Acc	0.049%	0.000%	41,861	0	2025-02-28
Empower Small Cap Growth II/Wellington	0.049%	-2.121%	41,852	-907	2024-09-30
Empower Small Cap GrowthII/WellingtonSP	0.049%	-2.121%	41,852	-907	2024-09-30
Fidelity Small Cap Growth Index	0.040%	2.253%	34,273	755	2025-02-28
Empower S&P Mid Cap 400® Index Inv	0.038%	0.000%	32,546	0	2024-12-31
MoA Mid Cap Equity Index Fund	0.036%	0.651%	31,252	202	2024-12-31
Vanguard Instl Ttl Stck Mkt Idx Tr	0.035%	-4.993%	30,293	-1,592	2024-12-31
MoA Small Cap Growth Fund	0.035%	0.000%	30,156	0	2024-12-31
AltShares Merger Arbitrage ETF	0.034%	36.701%	29,157	7,828	2025-02-28