On this page, we present all of the funds holding MASI from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding MASI, with a link to that fund's top holdings. The next columns indicate the amount of MASI stock held by each of the funds holding MASI, followed by the MASI position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 403 funds holding MASI within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by Laurus Investment Counsel Inc.. For more details on the positions held by Laurus Investment Counsel Inc. (or by any of the other funds holding MASI), click the fund name in the "Holder" column of the funds-holding-MASI table below.

Holder	Amount	Position Size ($ in 1000's)	As of
Laurus Investment Counsel Inc.	8,340	$1,672,409	12/31/2022
MASI	8,340	$1,672,409	12/31/2022
BlackRock Inc.	5,414,824	$764,355	09/30/2022
MASI	5,414,824	$764,355	09/30/2022
Politan Capital Management LP	4,648,869	$656,234	09/30/2022
MASI	4,648,869	$656,234	09/30/2022
Vanguard Group Inc.	4,628,062	$653,298	09/30/2022
MASI	4,628,062	$653,298	09/30/2022
FMR LLC	3,857,290	$544,495	09/30/2022
MASI	3,857,290	$544,495	09/30/2022
State Street Corp	1,657,148	$233,923	09/30/2022
MASI	1,657,148	$233,923	09/30/2022
RTW Investments LP	1,439,993	$203,269	09/30/2022
MASI	1,439,993	$203,269	09/30/2022
Liontrust Investment Partners LLP	1,142,100	$161,219	09/30/2022
MASI	1,142,100	$161,219	09/30/2022
Champlain Investment Partners LLC	934,762	$131,951	09/30/2022
MASI	934,762	$131,951	09/30/2022
Fundsmith LLP	765,161	$108,010	09/30/2022
MASI	765,161	$108,010	09/30/2022
Goldman Sachs Group Inc.	728,634	$102,854	09/30/2022
MASI	728,634	$102,854	09/30/2022
Morgan Stanley	695,842	$98,226	09/30/2022
MASI	695,842	$98,226	09/30/2022
Geode Capital Management LLC	671,529	$94,719	09/30/2022
MASI	671,529	$94,719	09/30/2022
Citigroup Inc.	623,851	$88,062	09/30/2022
MASI	623,851	$88,062	09/30/2022
Farallon Capital Management LLC	577,000	$81,449	09/30/2022
MASI	577,000	$81,449	09/30/2022
Martin Currie Ltd.	572,333	$80,791	09/30/2022
MASI	572,333	$80,791	09/30/2022
Millennium Management LLC		$76,738	09/30/2022
MASI	548,626	$77,444	09/30/2022
Put	7,000	$988	09/30/2022
Call	2,000	$282	09/30/2022
Bank of New York Mellon Corp	542,369	$76,559	09/30/2022
MASI	542,369	$76,559	09/30/2022
Neuberger Berman Group LLC	502,190	$71,411	09/30/2022
MASI	502,190	$71,411	09/30/2022
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	469,586	$66,287	09/30/2022
MASI	469,586	$66,287	09/30/2022
Northern Trust Corp	467,828	$66,039	09/30/2022
MASI	467,828	$66,039	09/30/2022
Bank of Nova Scotia	453,150	$63,967	09/30/2022
MASI	453,150	$63,967	09/30/2022
Barclays PLC	404,697	$57,126	09/30/2022
MASI	404,697	$57,126	09/30/2022
Sumitomo Mitsui Trust Holdings Inc.	384,481	$56,884	12/31/2022
MASI	384,481	$56,884	12/31/2022
Schroder Investment Management Group	398,524	$56,255	09/30/2022
MASI	398,524	$56,255	09/30/2022
D. E. Shaw & Co. Inc.	394,652	$55,709	09/30/2022
MASI	394,652	$55,709	09/30/2022
Two Sigma Advisers LP	393,900	$55,603	09/30/2022
MASI	393,900	$55,603	09/30/2022
JPMorgan Chase & Co.	348,713	$49,223	09/30/2022
MASI	348,713	$49,223	09/30/2022
Legal & General Group Plc	343,538	$48,493	09/30/2022
MASI	343,538	$48,493	09/30/2022
Ensemble Capital Management LLC	342,926	$48,407	09/30/2022
MASI	342,926	$48,407	09/30/2022
Charles Schwab Investment Management Inc.	333,622	$47,094	09/30/2022
MASI	333,622	$47,094	09/30/2022
UBS Asset Management Americas Inc.	326,239	$46,052	09/30/2022
MASI	326,239	$46,052	09/30/2022
Canada Pension Plan Investment Board	318,600	$44,974	09/30/2022
MASI	318,600	$44,974	09/30/2022
Geneva Capital Management LLC	302,037	$42,636	09/30/2022
MASI	302,037	$42,636	09/30/2022
Raymond James & Associates	283,028	$39,952	09/30/2022
MASI	283,028	$39,952	09/30/2022
First Republic Investment Management Inc.	278,459	$39,307	09/30/2022
MASI	278,459	$39,307	09/30/2022
Hsbc Holdings PLC	263,738	$37,967	09/30/2022
MASI	263,738	$37,967	09/30/2022
Obermeyer Wood Investment Counsel Lllp	263,499	$37,196	09/30/2022
MASI	263,499	$37,196	09/30/2022
The Manufacturers Life Insurance Company	257,153	$36,300	09/30/2022
MASI	257,153	$36,300	09/30/2022
Swiss National Bank	228,514	$32,257	09/30/2022
MASI	228,514	$32,257	09/30/2022
Dimensional Fund Advisors LP	225,287	$31,803	09/30/2022
MASI	225,287	$31,803	09/30/2022
Toronto Dominion Bank	223,365	$31,520	09/30/2022
MASI	223,365	$31,520	09/30/2022
Handelsbanken Fonder AB	219,430	$30,975	09/30/2022
MASI	219,430	$30,975	09/30/2022
Point72 Asset Management L.P.	203,088	$28,668	09/30/2022
MASI	203,088	$28,668	09/30/2022
Citadel Advisors LLC		$27,303	09/30/2022
MASI	188,717	$26,639	09/30/2022
Call	8,500	$1,200	09/30/2022
Put	3,800	$536	09/30/2022
Principal Financial Group Inc.	192,239	$27,137	09/30/2022
MASI	192,239	$27,137	09/30/2022
Hawk Ridge Capital Management LP	179,308	$25,311	09/30/2022
MASI	179,308	$25,311	09/30/2022
BNP Paribas Arbitrage SA	167,906	$23,702	09/30/2022
MASI	167,906	$23,702	09/30/2022
Retirement Systems of Alabama	152,469	$21,523	09/30/2022
MASI	152,469	$21,523	09/30/2022
ING Groep NV	150,000	$21,174	09/30/2022
MASI	150,000	$21,174	09/30/2022
Healthcare of Ontario Pension Plan Trust Fund	145,500	$20,539	09/30/2022
MASI	145,500	$20,539	09/30/2022
Jane Street Group LLC		$19,881	09/30/2022
MASI	128,744	$18,173	09/30/2022
Call	12,100	$1,708	09/30/2022
Rhumbline Advisers	140,785	$19,873	09/30/2022
MASI	140,785	$19,873	09/30/2022
Deutsche Bank AG	139,901	$19,748	09/30/2022
MASI	139,901	$19,748	09/30/2022
Rockefeller Capital Management L.P.	138,213	$19,508	09/30/2022
MASI	138,213	$19,508	09/30/2022
Invesco Ltd.	130,941	$18,484	09/30/2022
MASI	130,941	$18,484	09/30/2022
Bank of Montreal Can	127,735	$18,450	09/30/2022
MASI	127,735	$18,450	09/30/2022
Ameriprise Financial Inc.	121,801	$17,193	09/30/2022
MASI	121,801	$17,193	09/30/2022
Montanaro Asset Management Ltd	116,500	$16,445	09/30/2022
MASI	116,500	$16,445	09/30/2022
California Public Employees Retirement System	113,349	$16,000	09/30/2022
MASI	113,349	$16,000	09/30/2022
Acadian Asset Management LLC	110,625	$15,608	09/30/2022
MASI	110,625	$15,608	09/30/2022
Amundi	105,570	$15,413	09/30/2022
MASI	105,570	$15,413	09/30/2022
Nuveen Asset Management LLC	108,245	$15,280	09/30/2022
MASI	108,245	$15,280	09/30/2022
Baillie Gifford & Co.	96,135	$14,223	12/31/2022
MASI	96,135	$14,223	12/31/2022
Alyeska Investment Group L.P.	100,000	$14,116	09/30/2022
MASI	100,000	$14,116	09/30/2022
BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp	98,652	$13,926	09/30/2022
MASI	98,652	$13,926	09/30/2022
UBS Group AG	89,399	$12,620	09/30/2022
MASI	89,399	$12,620	09/30/2022
California State Teachers Retirement System	86,007	$12,141	09/30/2022
MASI	86,007	$12,141	09/30/2022
Arrowstreet Capital Limited Partnership	85,902	$12,126	09/30/2022
MASI	85,902	$12,126	09/30/2022
Gamco Investors INC. ET AL	85,000	$11,999	09/30/2022
MASI	85,000	$11,999	09/30/2022
Bridgewater Associates LP	78,634	$11,100	09/30/2022
MASI	78,634	$11,100	09/30/2022
American International Group Inc.	76,443	$10,791	09/30/2022
MASI	76,443	$10,791	09/30/2022
Alliancebernstein L.P.	75,557	$10,666	09/30/2022
MASI	75,557	$10,666	09/30/2022
Royal Bank of Canada	71,364	$10,074	09/30/2022
MASI	71,364	$10,074	09/30/2022
New York State Common Retirement Fund	66,434	$9,829	12/31/2022
MASI	66,434	$9,829	12/31/2022
Credit Suisse AG	69,173	$9,763	09/30/2022
MASI	69,173	$9,763	09/30/2022
2Xideas AG	68,123	$9,616	09/30/2022
MASI	68,123	$9,616	09/30/2022
New York State Teachers Retirement System	63,455	$9,388	12/31/2022
MASI	63,455	$9,388	12/31/2022
Susquehanna Fundamental Investments LLC	65,439	$9,237	09/30/2022
MASI	65,439	$9,237	09/30/2022
Mirae Asset Global Investments Co. Ltd.	65,293	$9,217	09/30/2022
MASI	65,293	$9,217	09/30/2022
Cubist Systematic Strategies LLC	64,579	$9,116	09/30/2022
MASI	64,579	$9,116	09/30/2022
DekaBank Deutsche Girozentrale	62,946	$8,931	09/30/2022
MASI	62,946	$8,931	09/30/2022
Two Sigma Investments LP	62,860	$8,873	09/30/2022
MASI	62,860	$8,873	09/30/2022
Janney Montgomery Scott LLC	61,208	$8,640	09/30/2022
MASI	61,208	$8,640	09/30/2022
State Board of Administration of Florida Retirement System	55,899	$7,891	09/30/2022
MASI	55,899	$7,891	09/30/2022
Pura Vida Investments LLC		$7,877	09/30/2022
Call	30,000	$4,235	09/30/2022
MASI	25,800	$3,642	09/30/2022
Logan Capital Management Inc.	55,220	$7,795	09/30/2022
MASI	55,220	$7,795	09/30/2022
Bell Asset Management Ltd	51,780	$7,309	09/30/2022
MASI	51,780	$7,309	09/30/2022
Eaton Vance Management	51,722	$7,301	09/30/2022
MASI	51,722	$7,301	09/30/2022
Sei Investments Co.	51,699	$7,297	09/30/2022
MASI	51,699	$7,297	09/30/2022
Allspring Global Investments Holdings LLC	49,125	$7,268	12/31/2022
MASI	49,125	$7,268	12/31/2022
BRYN MAWR TRUST Co	50,499	$7,128	09/30/2022
MASI	50,499	$7,128	09/30/2022
Great West Life Assurance Co. Can	48,945	$6,904	09/30/2022
MASI	48,945	$6,904	09/30/2022
Aviva PLC	48,583	$6,858	09/30/2022
MASI	48,583	$6,858	09/30/2022
First Trust Advisors LP	48,393	$6,831	09/30/2022
MASI	48,393	$6,831	09/30/2022
Renaissance Technologies LLC	47,800	$6,747	09/30/2022
MASI	47,800	$6,747	09/30/2022
Asset Management One Co. Ltd.	47,163	$6,670	09/30/2022
MASI	47,163	$6,670	09/30/2022
State of Tennessee Treasury Department	46,154	$6,515	09/30/2022
MASI	46,154	$6,515	09/30/2022
Banco Santander S.A.	41,983	$5,926	09/30/2022
MASI	41,983	$5,926	09/30/2022
NS Partners Ltd	41,946	$5,921	09/30/2022
MASI	41,946	$5,921	09/30/2022
Forte Capital LLC ADV	40,937	$5,779	09/30/2022
MASI	40,937	$5,779	09/30/2022
Point72 Hong Kong Ltd	40,028	$5,650	09/30/2022
MASI	40,028	$5,650	09/30/2022
Shell Asset Management Co.	39,742	$5,610	09/30/2022
MASI	39,742	$5,610	09/30/2022
Andra AP fonden	39,000	$5,505	09/30/2022
MASI	39,000	$5,505	09/30/2022
Mutual of America Capital Management LLC	38,856	$5,485	09/30/2022
MASI	38,856	$5,485	09/30/2022
Korea Investment CORP	38,743	$5,469	09/30/2022
MASI	38,743	$5,469	09/30/2022
Amalgamated Bank	36,330	$5,128	09/30/2022
MASI	36,330	$5,128	09/30/2022
Brookfield Asset Management Inc.	36,026	$5,085	09/30/2022
MASI	36,026	$5,085	09/30/2022
Texas Permanent School Fund	34,758	$4,906	09/30/2022
MASI	34,758	$4,906	09/30/2022
Thrivent Financial for Lutherans	33,623	$4,746	09/30/2022
MASI	33,623	$4,746	09/30/2022
Gabelli Funds LLC	33,200	$4,687	09/30/2022
MASI	33,200	$4,687	09/30/2022
Pertento Partners LLP	32,840	$4,636	09/30/2022
MASI	32,840	$4,636	09/30/2022
MetLife Investment Management LLC	32,524	$4,591	09/30/2022
MASI	32,524	$4,591	09/30/2022
South Dakota Investment Council	32,047	$4,524	09/30/2022
MASI	32,047	$4,524	09/30/2022
Mitsubishi UFJ Trust & Banking Corp	31,487	$4,444	09/30/2022
MASI	31,487	$4,444	09/30/2022
Los Angeles Capital Management & Equity Research Inc.	31,300	$4,418	09/30/2022
MASI	31,300	$4,418	09/30/2022
Marshall Wace LLP	31,113	$4,392	09/30/2022
MASI	31,113	$4,392	09/30/2022
State of New Jersey Common Pension Fund D	30,956	$4,370	09/30/2022
MASI	30,956	$4,370	09/30/2022
Bessemer Group Inc.	29,860	$4,215	09/30/2022
MASI	29,860	$4,215	09/30/2022
State of Wisconsin Investment Board	29,792	$4,205	09/30/2022
MASI	29,792	$4,205	09/30/2022
Paradigm Capital Management Inc. NY	29,753	$4,200	09/30/2022
MASI	29,753	$4,200	09/30/2022
Assenagon Asset Management S.A.	27,090	$4,008	12/31/2022
MASI	27,090	$4,008	12/31/2022
HRT Financial LP	28,399	$4,008	09/30/2022
MASI	28,399	$4,008	09/30/2022
Susquehanna International Group LLP		$4,003	09/30/2022
Call	25,000	$3,529	09/30/2022
MASI	10,158	$1,434	09/30/2022
Put	6,800	$960	09/30/2022
Carmignac Gestion	28,134	$3,986	09/30/2022
MASI	28,134	$3,986	09/30/2022
Cibc World Markets Corp	26,600	$3,755	09/30/2022
MASI	26,600	$3,755	09/30/2022
Yousif Capital Management LLC	25,110	$3,715	12/31/2022
MASI	25,110	$3,715	12/31/2022
Price T Rowe Associates Inc. MD	26,262	$3,708	09/30/2022
MASI	26,262	$3,708	09/30/2022
Jacobs Levy Equity Management Inc.	24,863	$3,510	09/30/2022
MASI	24,863	$3,510	09/30/2022
Public Employees Retirement System of Ohio	24,679	$3,484	09/30/2022
MASI	24,679	$3,484	09/30/2022
Comerica Bank	21,340	$3,457	12/31/2022
MASI	21,340	$3,457	12/31/2022
Mitsubishi UFJ Kokusai Asset Management Co. Ltd.	24,034	$3,393	09/30/2022
MASI	24,034	$3,393	09/30/2022
Allianz Asset Management GmbH	23,855	$3,368	09/30/2022
MASI	23,855	$3,368	09/30/2022
LPL Financial LLC	23,627	$3,335	09/30/2022
MASI	23,627	$3,335	09/30/2022
PDT Partners LLC	23,469	$3,313	09/30/2022
MASI	23,469	$3,313	09/30/2022
Brown Capital Management LLC	23,143	$3,267	09/30/2022
MASI	23,143	$3,267	09/30/2022
Bank of America Corp DE	22,402	$3,163	09/30/2022
MASI	22,402	$3,163	09/30/2022
Algert Global LLC	20,686	$2,920	09/30/2022
MASI	20,686	$2,920	09/30/2022
Wells Fargo & Company MN	20,395	$2,879	09/30/2022
MASI	20,395	$2,879	09/30/2022
Treasurer of the State of North Carolina	20,329	$2,870	09/30/2022
MASI	20,329	$2,870	09/30/2022
Voya Investment Management LLC	19,390	$2,737	09/30/2022
MASI	19,390	$2,737	09/30/2022
Oregon Public Employees Retirement Fund	18,475	$2,733	12/31/2022
MASI	18,475	$2,733	12/31/2022
Commonwealth of Pennsylvania Public School Empls Retrmt SYS	19,161	$2,705	09/30/2022
MASI	19,161	$2,705	09/30/2022
Brown Advisory Inc.	18,669	$2,635	09/30/2022
MASI	18,669	$2,635	09/30/2022
Pictet Asset Management SA	17,798	$2,512	09/30/2022
MASI	17,798	$2,512	09/30/2022
Woodline Partners LP	17,499	$2,470	09/30/2022
MASI	17,499	$2,470	09/30/2022
Envestnet Asset Management Inc.	16,766	$2,367	09/30/2022
MASI	16,766	$2,367	09/30/2022
Balyasny Asset Management LLC	16,505	$2,330	09/30/2022
MASI	16,505	$2,330	09/30/2022
Ensign Peak Advisors Inc	16,475	$2,325	09/30/2022
MASI	16,475	$2,325	09/30/2022
Banque Pictet & Cie SA	16,317	$2,303	09/30/2022
MASI	16,317	$2,303	09/30/2022
Holocene Advisors LP	16,030	$2,263	09/30/2022
MASI	16,030	$2,263	09/30/2022
Lockerman Financial Group Inc.	15,600	$2,202	09/30/2022
MASI	15,600	$2,202	09/30/2022
Ascent Wealth Partners LLC	15,591	$2,201	09/30/2022
MASI	15,591	$2,201	09/30/2022
Royal London Asset Management Ltd.	15,359	$2,170	09/30/2022
MASI	15,359	$2,170	09/30/2022
Birchview Capital LP	15,280	$2,157	09/30/2022
MASI	15,280	$2,157	09/30/2022
Personal Capital Advisors Corp	15,090	$2,130	09/30/2022
MASI	15,090	$2,130	09/30/2022
Arizona State Retirement System	14,478	$2,044	09/30/2022
MASI	14,478	$2,044	09/30/2022
Cinctive Capital Management LP	14,422	$2,036	09/30/2022
MASI	14,422	$2,036	09/30/2022
APG Asset Management N.V.	13,728	$1,978	09/30/2022
MASI	13,728	$1,978	09/30/2022
ExodusPoint Capital Management LP	13,586	$1,918	09/30/2022
MASI	13,586	$1,918	09/30/2022
Louisiana State Employees Retirement System	12,900	$1,909	12/31/2022
MASI	12,900	$1,909	12/31/2022
Zurcher Kantonalbank Zurich Cantonalbank	13,196	$1,863	09/30/2022
MASI	13,196	$1,863	09/30/2022
State of Michigan Retirement System	12,296	$1,819	12/31/2022
MASI	12,296	$1,819	12/31/2022
Aquatic Capital Management LLC	12,700	$1,793	09/30/2022
MASI	12,700	$1,793	09/30/2022
Russell Investments Group Ltd.	12,648	$1,789	09/30/2022
MASI	12,648	$1,789	09/30/2022
DE Burlo Group Inc.	12,652	$1,786	09/30/2022
MASI	12,652	$1,786	09/30/2022
Illinois Municipal Retirement Fund	12,432	$1,755	09/30/2022
MASI	12,432	$1,755	09/30/2022
Ameritas Investment Partners Inc.	12,429	$1,754	09/30/2022
MASI	12,429	$1,754	09/30/2022
Nomura Asset Management Co. Ltd.	11,420	$1,612	09/30/2022
MASI	11,420	$1,612	09/30/2022
Cardinal Capital Management	10,716	$1,585	12/31/2022
MASI	10,716	$1,585	12/31/2022
Creative Planning	11,050	$1,560	09/30/2022
MASI	11,050	$1,560	09/30/2022
JustInvest LLC	10,953	$1,546	09/30/2022
MASI	10,953	$1,546	09/30/2022
Victory Capital Management Inc.	10,922	$1,542	09/30/2022
MASI	10,922	$1,542	09/30/2022
Tredje AP fonden	10,852	$1,532	09/30/2022
MASI	10,852	$1,532	09/30/2022
Xponance Inc.	10,141	$1,500	12/31/2022
MASI	10,141	$1,500	12/31/2022
Unigestion Holding SA	10,443	$1,487	09/30/2022
MASI	10,443	$1,487	09/30/2022
Ergoteles LLC	10,265	$1,449	09/30/2022
MASI	10,265	$1,449	09/30/2022
Fjarde AP Fonden Fourth Swedish National Pension Fund	10,915	$1,426	09/30/2022
MASI	10,915	$1,426	09/30/2022
LRT Capital Management LLC	10,010	$1,413	09/30/2022
MASI	10,010	$1,413	09/30/2022
Eukles Asset Management	9,424	$1,394	12/31/2022
MASI	9,424	$1,394	12/31/2022
Peloton Wealth Strategists	9,365	$1,322	09/30/2022
MASI	9,365	$1,322	09/30/2022
IFM Investors Pty Ltd	9,165	$1,294	09/30/2022
MASI	9,165	$1,294	09/30/2022
Walleye Capital LLC	9,013	$1,272	09/30/2022
MASI	9,013	$1,272	09/30/2022
Guggenheim Capital LLC	8,978	$1,268	09/30/2022
MASI	8,978	$1,268	09/30/2022
Skandinaviska Enskilda Banken AB publ	8,924	$1,260	09/30/2022
MASI	8,924	$1,260	09/30/2022
Gulf International Bank UK Ltd	8,855	$1,249	09/30/2022
MASI	8,855	$1,249	09/30/2022
US Bancorp DE	8,539	$1,206	09/30/2022
MASI	8,539	$1,206	09/30/2022
Utah Retirement Systems	8,521	$1,203	09/30/2022
MASI	8,521	$1,203	09/30/2022
Exchange Traded Concepts LLC	8,071	$1,194	12/31/2022
MASI	8,071	$1,194	12/31/2022
Truist Financial Corp	8,032	$1,133	09/30/2022
MASI	8,032	$1,133	09/30/2022
Federated Hermes Inc.	8,018	$1,132	09/30/2022
MASI	8,018	$1,132	09/30/2022
BOKF NA	8,012	$1,131	09/30/2022
MASI	8,012	$1,131	09/30/2022
New Mexico Educational Retirement Board	8,000	$1,129	09/30/2022
MASI	8,000	$1,129	09/30/2022
North Star Asset Management Inc.	7,907	$1,116	09/30/2022
MASI	7,907	$1,116	09/30/2022
Advisor Group Holdings Inc.	7,791	$1,101	09/30/2022
MASI	7,791	$1,101	09/30/2022
Teachers Retirement System of The State of Kentucky	7,740	$1,093	09/30/2022
MASI	7,740	$1,093	09/30/2022
Alberta Investment Management Corp	7,741	$1,093	09/30/2022
MASI	7,741	$1,093	09/30/2022
Public Employees Retirement Association of Colorado	7,537	$1,064	09/30/2022
MASI	7,537	$1,064	09/30/2022
Teacher Retirement System of Texas	7,529	$1,063	09/30/2022
MASI	7,529	$1,063	09/30/2022
Brinker Capital Investments LLC	7,443	$1,051	09/30/2022
MASI	7,443	$1,051	09/30/2022
Mirabella Financial Services LLP	7,101	$1,002	09/30/2022
MASI	7,101	$1,002	09/30/2022
State of Alaska Department of Revenue	6,768	$1,001	12/31/2022
MASI	6,768	$1,001	12/31/2022
CenterBook Partners LP	7,043	$994	09/30/2022
MASI	7,043	$994	09/30/2022
Assetmark Inc.	7,030	$992	09/30/2022
MASI	7,030	$992	09/30/2022
Quantbot Technologies LP	7,025	$991	09/30/2022
MASI	7,025	$991	09/30/2022
Northwestern Mutual Investment Management Company LLC	6,980	$985	09/30/2022
MASI	6,980	$985	09/30/2022
TD Asset Management Inc.	6,906	$983	09/30/2022
MASI	6,906	$983	09/30/2022
The PNC Financial Services Group Inc.	6,880	$972	09/30/2022
MASI	6,880	$972	09/30/2022
Pathstone Family Office LLC	6,841	$966	09/30/2022
MASI	6,841	$966	09/30/2022
Schonfeld Strategic Advisors LLC	6,819	$963	09/30/2022
MASI	6,819	$963	09/30/2022
Fiera Capital Corp	6,661	$940	09/30/2022
MASI	6,661	$940	09/30/2022
Marshall Financial Group LLC	6,362	$898	09/30/2022
MASI	6,362	$898	09/30/2022
Mariner LLC	6,244	$881	09/30/2022
MASI	6,244	$881	09/30/2022
Nissay Asset Management Corp Japan ADV	6,053	$854	09/30/2022
MASI	6,053	$854	09/30/2022
Van ECK Associates Corp	6,015	$849	09/30/2022
MASI	6,015	$849	09/30/2022
Franklin Resources Inc.	5,998	$847	09/30/2022
MASI	5,998	$847	09/30/2022
Boothbay Fund Management LLC	5,561	$785	09/30/2022
MASI	5,561	$785	09/30/2022
Knowledge Leaders Capital LLC	5,496	$776	09/30/2022
MASI	5,496	$776	09/30/2022
Janus Henderson Group PLC	5,327	$752	09/30/2022
MASI	5,327	$752	09/30/2022
Blue Whale Capital LLP	5,200	$734	09/30/2022
MASI	5,200	$734	09/30/2022
Robeco Institutional Asset Management B.V.	5,203	$733	09/30/2022
MASI	5,203	$733	09/30/2022
MML Investors Services LLC	4,763	$672	09/30/2022
MASI	4,763	$672	09/30/2022
Macquarie Group Ltd.	4,552	$642	09/30/2022
MASI	4,552	$642	09/30/2022
WINTON GROUP Ltd	4,517	$638	09/30/2022
MASI	4,517	$638	09/30/2022
Quantamental Technologies LLC	4,478	$632	09/30/2022
MASI	4,478	$632	09/30/2022
Securian Asset Management Inc	4,413	$623	09/30/2022
MASI	4,413	$623	09/30/2022
Candriam Luxembourg S.C.A.	4,339	$613	09/30/2022
MASI	4,339	$613	09/30/2022
Standard Life Aberdeen plc	4,333	$611	09/30/2022
MASI	4,333	$611	09/30/2022
Gotham Asset Management LLC	4,315	$609	09/30/2022
MASI	4,315	$609	09/30/2022
Allstate Corp	4,286	$605	09/30/2022
MASI	4,286	$605	09/30/2022
Crossmark Global Holdings Inc.	4,005	$592	12/31/2022
MASI	4,005	$592	12/31/2022
Prudential Financial Inc.	4,181	$590	09/30/2022
MASI	4,181	$590	09/30/2022
AQR Capital Management LLC	4,009	$566	09/30/2022
MASI	4,009	$566	09/30/2022
Westpac Banking Corp	3,952	$558	09/30/2022
MASI	3,952	$558	09/30/2022
Maryland State Retirement & Pension System	3,736	$553	12/31/2022
MASI	3,736	$553	12/31/2022
Vontobel Holding Ltd.	3,870	$551	09/30/2022
MASI	3,870	$551	09/30/2022
First Merchants Corp	3,718	$550	12/31/2022
MASI	3,718	$550	12/31/2022
Squarepoint Ops LLC	3,761	$531	09/30/2022
MASI	3,761	$531	09/30/2022
Blueshift Asset Management LLC	3,716	$525	09/30/2022
MASI	3,716	$525	09/30/2022
American Century Companies Inc.	3,699	$522	09/30/2022
MASI	3,699	$522	09/30/2022
Cipher Capital LP	3,693	$521	09/30/2022
MASI	3,693	$521	09/30/2022
Pacer Advisors Inc.	3,685	$520	09/30/2022
MASI	3,685	$520	09/30/2022
Institutional & Family Asset Management LLC	3,650	$515	09/30/2022
MASI	3,650	$515	09/30/2022
	3,651	$515	09/30/2022
MASI	3,651	$515	09/30/2022
Oxford Financial Group Ltd.	3,642	$514	09/30/2022
MASI	3,642	$514	09/30/2022
Raymond James Trust N.A.	3,608	$509	09/30/2022
MASI	3,608	$509	09/30/2022
Cambridge Investment Research Advisors Inc.	3,512	$496	09/30/2022
MASI	3,512	$496	09/30/2022
ProShare Advisors LLC	3,409	$482	09/30/2022
MASI	3,409	$482	09/30/2022
Advisors Asset Management Inc.	3,404	$481	09/30/2022
MASI	3,404	$481	09/30/2022
Nordea Investment Management AB	3,328	$480	09/30/2022
MASI	3,328	$480	09/30/2022
Arkadios Wealth Advisors	3,133	$464	12/31/2022
MASI	3,133	$464	12/31/2022
Sumitomo Mitsui DS Asset Management Company Ltd	3,113	$461	12/31/2022
MASI	3,113	$461	12/31/2022
Qtron Investments LLC	3,250	$459	09/30/2022
MASI	3,250	$459	09/30/2022
Walleye Trading LLC		$450	09/30/2022
Call	2,600	$367	09/30/2022
MASI	590	$83	09/30/2022
Stifel Financial Corp	3,028	$428	09/30/2022
MASI	3,028	$428	09/30/2022
DAFNA Capital Management LLC	3,000	$423	09/30/2022
MASI	3,000	$423	09/30/2022
Cetera Investment Advisers	2,986	$422	09/30/2022
MASI	2,986	$422	09/30/2022
Sigma Planning Corp	2,802	$415	12/31/2022
MASI	2,802	$415	12/31/2022
Quantitative Investment Management LLC	2,916	$411	09/30/2022
MASI	2,916	$411	09/30/2022
Advisor Partners II LLC	2,889	$408	09/30/2022
MASI	2,889	$408	09/30/2022
Seeyond	2,854	$402	09/30/2022
MASI	2,854	$402	09/30/2022
Daiwa Securities Group Inc.	2,823	$398	09/30/2022
MASI	2,823	$398	09/30/2022
Krilogy Financial LLC	2,698	$381	09/30/2022
MASI	2,698	$381	09/30/2022
Shelton Capital Management	2,684	$379	09/30/2022
MASI	2,684	$379	09/30/2022
Quantinno Capital Management LP	2,645	$373	09/30/2022
MASI	2,645	$373	09/30/2022
Baird Financial Group Inc.	2,634	$372	09/30/2022
MASI	2,634	$372	09/30/2022
Echo Street Capital Management LLC	2,596	$366	09/30/2022
MASI	2,596	$366	09/30/2022
Coldstream Capital Management Inc.	2,455	$363	12/31/2022
MASI	2,455	$363	12/31/2022
Buckhead Capital Management LLC	2,545	$359	09/30/2022
MASI	2,545	$359	09/30/2022
KCM Investment Advisors LLC	2,515	$355	09/30/2022
MASI	2,515	$355	09/30/2022
HighTower Advisors LLC	2,459	$348	09/30/2022
MASI	2,459	$348	09/30/2022
Intech Investment Management LLC	2,459	$347	09/30/2022
MASI	2,459	$347	09/30/2022
Lombard Odier Asset Management Europe Ltd	2,450	$346	09/30/2022
MASI	2,450	$346	09/30/2022
Red Spruce Capital LLC	2,263	$335	12/31/2022
MASI	2,263	$335	12/31/2022
Panagora Asset Management Inc.	2,370	$335	09/30/2022
MASI	2,370	$335	09/30/2022
Diversified Trust Co	2,222	$329	12/31/2022
MASI	2,222	$329	12/31/2022
Silvercrest Asset Management Group LLC	2,321	$328	09/30/2022
MASI	2,321	$328	09/30/2022
Raymond James Financial Services Advisors Inc.	2,235	$315	09/30/2022
MASI	2,235	$315	09/30/2022
BancorpSouth Bank	2,172	$307	09/30/2022
MASI	2,172	$307	09/30/2022
Verition Fund Management LLC	2,169	$306	09/30/2022
MASI	2,169	$306	09/30/2022
CIBC Asset Management Inc	2,125	$300	09/30/2022
MASI	2,125	$300	09/30/2022
Profund Advisors LLC	2,073	$293	09/30/2022
MASI	2,073	$293	09/30/2022
Yorktown Management & Research Co Inc	1,950	$289	12/31/2022
MASI	1,950	$289	12/31/2022
Commonwealth Equity Services LLC	2,049	$289	09/30/2022
MASI	2,049	$289	09/30/2022
Aigen Investment Management LP	2,029	$286	09/30/2022
MASI	2,029	$286	09/30/2022
Ethic Inc.	2,023	$286	09/30/2022
MASI	2,023	$286	09/30/2022
Commerce Bank	1,970	$278	09/30/2022
MASI	1,970	$278	09/30/2022
Jefferies Group LLC	1,960	$277	09/30/2022
MASI	1,960	$277	09/30/2022
Two Sigma Securities LLC	1,916	$270	09/30/2022
MASI	1,916	$270	09/30/2022
Centiva Capital LP	1,900	$268	09/30/2022
MASI	1,900	$268	09/30/2022
Arcadia Investment Management Corp MI	1,853	$262	09/30/2022
MASI	1,853	$262	09/30/2022
M&T Bank Corp	1,837	$259	09/30/2022
MASI	1,837	$259	09/30/2022
Janney Capital Management LLC	1,794	$253	09/30/2022
MASI	1,794	$253	09/30/2022
Tower Research Capital LLC TRC	1,767	$250	09/30/2022
MASI	1,767	$250	09/30/2022
M&G Investment Management Ltd.	1,674	$248	12/31/2022
MASI	1,674	$248	12/31/2022
Independent Advisor Alliance	1,736	$245	09/30/2022
MASI	1,736	$245	09/30/2022
Capital Impact Advisors LLC	1,717	$242	09/30/2022
MASI	1,717	$242	09/30/2022
Kestra Private Wealth Services LLC	1,629	$230	09/30/2022
MASI	1,629	$230	09/30/2022
Pitcairn Co.	1,624	$229	09/30/2022
MASI	1,624	$229	09/30/2022
Captrust Financial Advisors	1,600	$226	09/30/2022
MASI	1,600	$226	09/30/2022
Tudor Investment Corp Et Al		$225	09/30/2022
Call	1,600	$225	09/30/2022
AE Wealth Management LLC	1,593	$225	09/30/2022
MASI	1,593	$225	09/30/2022
Bluestein R H & Co.	1,500	$212	09/30/2022
MASI	1,500	$212	09/30/2022
Simplex Trading LLC		$206	09/30/2022
MASI	1,066	$150	09/30/2022
Call	600	$84	09/30/2022
Put	200	$28	09/30/2022
Berkshire Asset Management LLC PA	1,450	$205	09/30/2022
MASI	1,450	$205	09/30/2022
Financial Advocates Investment Management	3,912	$200	09/30/2022
MASI	3,912	$200	09/30/2022
C M Bidwell & Associates Ltd.	1,367	$193	09/30/2022
MASI	1,367	$193	09/30/2022
CWM LLC	1,353	$191	09/30/2022
MASI	1,353	$191	09/30/2022
Vestcor Inc	1,242	$175	09/30/2022
MASI	1,242	$175	09/30/2022
Quadrant Capital Group LLC	1,196	$169	09/30/2022
MASI	1,196	$169	09/30/2022
Whittier Trust Co.	1,134	$168	12/31/2022
MASI	1,134	$168	12/31/2022
Exos TFP Holdings LLC	1,112	$157	09/30/2022
MASI	1,112	$157	09/30/2022
Signaturefd LLC	1,037	$153	12/31/2022
MASI	1,037	$153	12/31/2022
Harbor Investment Advisory LLC	995	$147	12/31/2022
MASI	995	$147	12/31/2022
Banque Cantonale Vaudoise	1,000	$141	09/30/2022
MASI	1,000	$141	09/30/2022
Lazard Asset Management LLC	929	$131	09/30/2022
MASI	929	$131	09/30/2022
Atticus Wealth Management LLC	1,000	$131	09/30/2022
MASI	1,000	$131	09/30/2022
Wipfli Financial Advisors LLC	839	$118	09/30/2022
MASI	839	$118	09/30/2022
KBC Group NV	817	$115	09/30/2022
MASI	817	$115	09/30/2022
Wesleyan Assurance Society	800	$113	09/30/2022
MASI	800	$113	09/30/2022
Covestor Ltd	695	$98	09/30/2022
MASI	695	$98	09/30/2022
Northwestern Mutual Wealth Management Co.	652	$92	09/30/2022
MASI	652	$92	09/30/2022
VitalStone Financial LLC	597	$88	12/31/2022
MASI	597	$88	12/31/2022
Mitsubishi UFJ Asset Management UK Ltd.	600	$85	09/30/2022
MASI	600	$85	09/30/2022
JJJ Advisors Inc.	477	$74	12/31/2022
MASI	477	$74	12/31/2022
HHM Wealth Advisors LLC	500	$74	12/31/2022
MASI	500	$74	12/31/2022
Benjamin F. Edwards & Company Inc.	500	$71	09/30/2022
MASI	500	$71	09/30/2022
Cribstone Capital Management LLC	500	$71	09/30/2022
MASI	500	$71	09/30/2022
Ossiam	443	$63	09/30/2022
MASI	443	$63	09/30/2022
Archer Investment Corp	391	$55	09/30/2022
MASI	391	$55	09/30/2022
GHP Investment Advisors Inc.	379	$53	09/30/2022
MASI	379	$53	09/30/2022
Parallel Advisors LLC	326	$46	09/30/2022
MASI	326	$46	09/30/2022
Fifth Third Bancorp	250	$37	12/31/2022
MASI	250	$37	12/31/2022
	247	$35	09/30/2022
MASI	247	$35	09/30/2022
Spire Wealth Management	238	$34	09/30/2022
MASI	238	$34	09/30/2022
Nisa Investment Advisors LLC	236	$33	09/30/2022
MASI	236	$33	09/30/2022
Meeder Asset Management Inc.	228	$32	09/30/2022
MASI	228	$32	09/30/2022
Lindbrook Capital LLC	212	$31	12/31/2022
MASI	212	$31	12/31/2022
IFP Advisors Inc	161	$30	09/30/2022
MASI	161	$30	09/30/2022
Brown Brothers Harriman & Co.	186	$26	09/30/2022
MASI	186	$26	09/30/2022
Itau Unibanco Holding S.A.	179	$25	09/30/2022
MASI	179	$25	09/30/2022
Allworth Financial LP	164	$24	12/31/2022
MASI	164	$24	12/31/2022
Harbour Investments Inc.	183	$24	09/30/2022
MASI	183	$24	09/30/2022
Riverview Trust Co	123	$18	12/31/2022
MASI	123	$18	12/31/2022
Ellevest Inc.	120	$17	09/30/2022
MASI	120	$17	09/30/2022
Virtus Investment Advisers Inc.	111	$16	09/30/2022
MASI	111	$16	09/30/2022
West Oak Capital LLC	100	$15	12/31/2022
MASI	100	$15	12/31/2022
Center for Financial Planning Inc.	100	$15	12/31/2022
MASI	100	$15	12/31/2022
Achmea Investment Management B.V.	94	$14	09/30/2022
MASI	94	$14	09/30/2022
Sageworth Trust Co of South Dakota	90	$13	09/30/2022
MASI	90	$13	09/30/2022
CI Investments Inc.	77	$11	09/30/2022
MASI	77	$11	09/30/2022
Smithfield Trust Co.	65	$10	09/30/2022
MASI	65	$10	09/30/2022
Steward Partners Investment Advisory LLC	55	$8	09/30/2022
MASI	55	$8	09/30/2022
Heritage Wealth Management LLC	60	$8	09/30/2022
MASI	60	$8	09/30/2022
Global Wealth Strategies & Associates	50	$7	12/31/2022
MASI	50	$7	12/31/2022
Clean Yield Group	49	$7	09/30/2022
MASI	49	$7	09/30/2022
TCI Wealth Advisors Inc.	52	$7	09/30/2022
MASI	52	$7	09/30/2022
Almanack Investment Partners LLC.	52	$7	09/30/2022
MASI	52	$7	09/30/2022
Investors Research Corp	50	$7	09/30/2022
MASI	50	$7	09/30/2022
Massmutual Trust Co. FSB ADV	42	$6	12/31/2022
MASI	42	$6	12/31/2022
Princeton Global Asset Management LLC	46	$6	09/30/2022
MASI	46	$6	09/30/2022
Bell Investment Advisors Inc	43	$6	09/30/2022
MASI	43	$6	09/30/2022
Ronald Blue Trust Inc.	37	$5	12/31/2022
MASI	37	$5	12/31/2022
RE Dickinson Investment Advisors LLC	32	$5	09/30/2022
MASI	32	$5	09/30/2022
North Star Investment Management Corp.	30	$4	12/31/2022
MASI	30	$4	12/31/2022
Hallmark Capital Management Inc.	26	$4	09/30/2022
MASI	26	$4	09/30/2022
Earnest Partners LLC	27	$4	09/30/2022
MASI	27	$4	09/30/2022
Parkside Financial Bank & Trust	27	$4	09/30/2022
MASI	27	$4	09/30/2022
Harvest Fund Management Co. Ltd	26	$4	09/30/2022
MASI	26	$4	09/30/2022
Global Retirement Partners LLC	34	$4	09/30/2022
MASI	34	$4	09/30/2022
Delos Wealth Advisors LLC	26	$4	09/30/2022
MASI	26	$4	09/30/2022
Rise Advisors LLC	20	$3	12/31/2022
MASI	20	$3	12/31/2022
RWM Asset Management LLC	21	$3	12/31/2022
MASI	21	$3	12/31/2022
Farmers & Merchants Investments Inc.	24	$3	09/30/2022
MASI	24	$3	09/30/2022
JFS Wealth Advisors LLC	20	$3	09/30/2022
MASI	20	$3	09/30/2022
Capital Advisors Ltd. LLC	22	$3	09/30/2022
MASI	22	$3	09/30/2022
CVA Family Office LLC	20	$3	09/30/2022
MASI	20	$3	09/30/2022
UMB Bank N A MO	14	$2	12/31/2022
MASI	14	$2	12/31/2022
Adirondack Trust Co.	12	$2	12/31/2022
MASI	12	$2	12/31/2022
M&R Capital Management Inc.	12	$2	12/31/2022
MASI	12	$2	12/31/2022
Quent Capital LLC	16	$2	12/31/2022
MASI	16	$2	12/31/2022
Clearstead Advisors LLC	15	$2	09/30/2022
MASI	15	$2	09/30/2022
FinTrust Capital Advisors LLC	13	$2	09/30/2022
MASI	13	$2	09/30/2022
Prestige Wealth Management Group LLC	13	$2	09/30/2022
MASI	13	$2	09/30/2022
Bellwether Advisors LLC	21	$2	09/30/2022
MASI	21	$2	09/30/2022
Schubert & Co	17	$2	09/30/2022
MASI	17	$2	09/30/2022
AdvisorNet Financial Inc	10	$1	12/31/2022
MASI	10	$1	12/31/2022
Moisand Fitzgerald Tamayo LLC	8	$1	12/31/2022
MASI	8	$1	12/31/2022
SJS Investment Consulting Inc.	6	$1	12/31/2022
MASI	6	$1	12/31/2022
Longfellow Investment Management Co. LLC	4	$1	09/30/2022
MASI	4	$1	09/30/2022
Transamerica Financial Advisors Inc.	4	$1	09/30/2022
MASI	4	$1	09/30/2022
First Horizon Advisors Inc.	8	$1	09/30/2022
MASI	8	$1	09/30/2022
National Pension Service	10	$1	09/30/2022
MASI	10	$1	09/30/2022
Glassman Wealth Services	9	$1	09/30/2022
MASI	9	$1	09/30/2022
Standard Family Office LLC	7	$1	09/30/2022
MASI	7	$1	09/30/2022
Disciplined Investments LLC	6	$1	09/30/2022
MASI	6	$1	09/30/2022
Guardian Wealth Advisors LLC	9	$1	09/30/2022
MASI	9	$1	09/30/2022
Proequities Inc.		$0	12/31/2022
Put	0	$0	12/31/2022
Call	0	$0	12/31/2022
MASI	0	$0	12/31/2022
Financial Management Professionals Inc.	2	$0	12/31/2022
MASI	2	$0	12/31/2022
Fiduciary Alliance LLC	3	$0	12/31/2022
MASI	3	$0	12/31/2022
Huntington National Bank	2	$0	09/30/2022
MASI	2	$0	09/30/2022
IMA Wealth Inc.	1	$0	09/30/2022
MASI	1	$0	09/30/2022
PEAK6 Investments LLC		$-2,058	09/30/2022
Put	17,800	$2,513	09/30/2022
MASI	1,922	$271	09/30/2022
Call	1,300	$184	09/30/2022
Washington Capital Management Inc.	2,200	$-325,490	12/31/2022
Put	2,200	$325,490	12/31/2022

See Summary: Institutional Holders of MASI
See Details: Top 10 Hedge Funds Holding MASI
Also See: MASI Insider Buying
Also See: MASI Holdings Changes

MASI — Current Quote

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MASI — Performance