HoldingsChannel.com
Funds Holding MTSI
HolderAmountPosition Size
($ in 1000's)		 As of
Vanguard Group Inc.4,315,944$114,805 12/31/2019
     MTSI4,315,944$114,805 12/31/2019
BlackRock Inc.3,938,384$104,761 12/31/2019
     MTSI3,938,384$104,761 12/31/2019
Capital Research Global Investors3,781,000$100,575 12/31/2019
     MTSI3,781,000$100,575 12/31/2019
Victory Capital Management Inc.3,234,038$86,026 12/31/2019
     MTSI3,234,038$86,026 12/31/2019
Yiheng Capital LLC3,186,673$84,766 12/31/2019
     MTSI3,186,673$84,766 12/31/2019
D. E. Shaw & Co. Inc.2,972,831$79,077 12/31/2019
     MTSI2,972,831$79,077 12/31/2019
Royal Bank of Canada2,503,559$66,595 12/31/2019
     MTSI2,503,559$66,595 12/31/2019
Frontier Capital Management Co. LLC1,870,354$49,751 12/31/2019
     MTSI1,870,354$49,751 12/31/2019
Goldman Sachs Group Inc.1,786,300$47,516 12/31/2019
     MTSI1,786,300$47,516 12/31/2019
Neuberger Berman Group LLC1,699,388$45,207 12/31/2019
     MTSI1,699,388$45,207 12/31/2019
Ameriprise Financial Inc.1,484,806$39,496 12/31/2019
     MTSI1,484,806$39,496 12/31/2019
State Street Corp1,290,828$34,336 12/31/2019
     MTSI1,290,828$34,336 12/31/2019
Aristotle Capital Boston LLC1,250,976$33,276 12/31/2019
     MTSI1,250,976$33,276 12/31/2019
Dimensional Fund Advisors LP1,142,644$30,395 12/31/2019
     MTSI1,142,644$30,395 12/31/2019
GW&K Investment Management LLC913,873$24,309 12/31/2019
     MTSI913,873$24,309 12/31/2019
Royce & Associates LP792,548$21,082 12/31/2019
     MTSI792,548$21,082 12/31/2019
Schroder Investment Management Group647,307$17,218 12/31/2019
     MTSI647,307$17,218 12/31/2019
Geode Capital Management LLC630,992$16,784 12/31/2019
     MTSI630,992$16,784 12/31/2019
Northern Trust Corp582,154$15,485 12/31/2019
     MTSI582,154$15,485 12/31/2019
Emerald Advisers LLC548,550$14,591 12/31/2019
     MTSI548,550$14,591 12/31/2019
Wells Fargo & Company MN531,744$14,144 12/31/2019
     MTSI531,744$14,144 12/31/2019
Emerald Mutual Fund Advisers Trust530,445$14,110 12/31/2019
     MTSI530,445$14,110 12/31/2019
Polar Asset Management Partners Inc.511,765$13,613 12/31/2019
     MTSI511,765$13,613 12/31/2019
Fuller & Thaler Asset Management Inc.481,536$12,809 12/31/2019
     MTSI481,536$12,809 12/31/2019
Guggenheim Capital LLC470,388$12,512 12/31/2019
     MTSI470,388$12,512 12/31/2019
Macquarie Group Ltd.436,565$11,613 12/31/2019
     MTSI436,565$11,613 12/31/2019
Invesco Ltd.404,171$10,751 12/31/2019
     MTSI404,171$10,751 12/31/2019
Bank of New York Mellon Corp370,944$9,867 12/31/2019
     MTSI370,944$9,867 12/31/2019
Nuveen Asset Management LLC341,808$9,091 12/31/2019
     MTSI341,808$9,091 12/31/2019
Sei Investments Co.340,477$9,053 12/31/2019
     MTSI340,477$9,053 12/31/2019
Intrinsic Edge Capital Management LLC329,852$8,774 12/31/2019
     MTSI329,852$8,774 12/31/2019
Weiss Multi Strategy Advisers LLC300,000$7,980 12/31/2019
     MTSI300,000$7,980 12/31/2019
Charles Schwab Investment Management Inc.282,009$7,502 12/31/2019
     MTSI282,009$7,502 12/31/2019
Public Employees Retirement Association of Colorado264,879$7,046 12/31/2019
     MTSI264,879$7,046 12/31/2019
S Squared Technology LLC262,500$6,983 12/31/2019
     MTSI262,500$6,983 12/31/2019
AXA256,000$6,810 12/31/2019
     MTSI256,000$6,810 12/31/2019
Arrowstreet Capital Limited Partnership253,509$6,743 12/31/2019
     MTSI253,509$6,743 12/31/2019
Two Sigma Advisers LP226,434$6,023 12/31/2019
     MTSI226,434$6,023 12/31/2019
Parametric Portfolio Associates LLC213,413$5,677 12/31/2019
     MTSI213,413$5,677 12/31/2019
Bank of America Corp DE $5,624 12/31/2019
     MTSI211,430$5,624 12/31/2019
     Put22,700$604 12/31/2019
     Call22,700$604 12/31/2019
Citadel Advisors LLC $5,536 12/31/2019
     MTSI200,654$5,337 12/31/2019
     Call39,000$1,037 12/31/2019
     Put31,500$838 12/31/2019
Castleark Management LLC192,457$5,119 12/31/2019
     MTSI192,457$5,119 12/31/2019
Cinctive Capital Management LP178,757$4,755 12/31/2019
     MTSI178,757$4,755 12/31/2019
Primecap Management Co. CA165,600$4,405 12/31/2019
     MTSI165,600$4,405 12/31/2019
Norges Bank151,043$4,018 12/31/2019
     MTSI151,043$4,018 12/31/2019
Lisanti Capital Growth LLC142,367$3,787 12/31/2019
     MTSI142,367$3,787 12/31/2019
Next Century Growth Investors LLC128,209$3,410 12/31/2019
     MTSI128,209$3,410 12/31/2019
First Trust Advisors LP123,423$3,283 12/31/2019
     MTSI123,423$3,283 12/31/2019
State of Wisconsin Investment Board119,227$3,171 12/31/2019
     MTSI119,227$3,171 12/31/2019
California Public Employees Retirement System100,503$2,673 12/31/2019
     MTSI100,503$2,673 12/31/2019
Deutsche Bank AG100,057$2,660 12/31/2019
     MTSI100,057$2,660 12/31/2019
Swiss National Bank88,450$2,353 12/31/2019
     MTSI88,450$2,353 12/31/2019
A.R.T. Advisors LLC85,019$2,262 12/31/2019
     MTSI85,019$2,262 12/31/2019
State of New Jersey Common Pension Fund D82,954$2,207 12/31/2019
     MTSI82,954$2,207 12/31/2019
Natixis Advisors L.P.77,787$2,069 12/31/2019
     MTSI77,787$2,069 12/31/2019
Rhumbline Advisers75,655$2,012 12/31/2019
     MTSI75,655$2,012 12/31/2019
Weld Capital Management LLC74,883$1,992 12/31/2019
     MTSI74,883$1,992 12/31/2019
California State Teachers Retirement System70,130$1,865 12/31/2019
     MTSI70,130$1,865 12/31/2019
Alliancebernstein L.P.66,699$1,774 12/31/2019
     MTSI66,699$1,774 12/31/2019
Morgan Stanley66,598$1,772 12/31/2019
     MTSI66,598$1,772 12/31/2019
New York State Common Retirement Fund61,541$1,637 12/31/2019
     MTSI61,541$1,637 12/31/2019
Cowen Prime Services LLC60,658$1,614 12/31/2019
     MTSI60,658$1,614 12/31/2019
Chartwell Investment Partners LLC60,239$1,602 12/31/2019
     MTSI60,239$1,602 12/31/2019
Federated Hermes Inc.59,914$1,594 12/31/2019
     MTSI59,914$1,594 12/31/2019
PDT Partners LLC59,122$1,573 12/31/2019
     MTSI59,122$1,573 12/31/2019
Comerica Bank51,095$1,522 12/31/2019
     MTSI51,095$1,522 12/31/2019
Penserra Capital Management LLC47,386$1,365 12/31/2019
     MTSI47,386$1,365 12/31/2019
Barclays PLC47,420$1,261 12/31/2019
     MTSI47,420$1,261 12/31/2019
UBS Asset Management Americas Inc.47,333$1,259 12/31/2019
     MTSI47,333$1,259 12/31/2019
Envestnet Asset Management Inc.34,390$915 12/31/2019
     MTSI34,390$915 12/31/2019
Squarepoint Ops LLC34,008$905 12/31/2019
     MTSI34,008$905 12/31/2019
Summit Partners L P32,993$878 12/31/2019
     MTSI32,993$878 12/31/2019
Symmetry Peak Management LLC33,000$878 12/31/2019
     MTSI33,000$878 12/31/2019
Credit Suisse AG31,151$829 12/31/2019
     MTSI31,151$829 12/31/2019
American International Group Inc.28,773$765 12/31/2019
     MTSI28,773$765 12/31/2019
The Manufacturers Life Insurance Company 27,840$741 12/31/2019
     MTSI27,840$741 12/31/2019
ExodusPoint Capital Management LP26,998$718 12/31/2019
     MTSI26,998$718 12/31/2019
PNC Financial Services Group Inc.26,944$717 12/31/2019
     MTSI26,944$717 12/31/2019
Engineers Gate Manager LP24,706$657 12/31/2019
     MTSI24,706$657 12/31/2019
Millennium Management LLC23,706$631 12/31/2019
     MTSI23,706$631 12/31/2019
Legal & General Group Plc23,657$629 12/31/2019
     MTSI23,657$629 12/31/2019
JPMorgan Chase & Co.23,529$626 12/31/2019
     MTSI23,529$626 12/31/2019
Patten & Patten Inc. TN23,465$624 12/31/2019
     MTSI23,465$624 12/31/2019
Voya Investment Management LLC22,408$596 12/31/2019
     MTSI22,408$596 12/31/2019
State Board of Administration of Florida Retirement System21,626$575 12/31/2019
     MTSI21,626$575 12/31/2019
NJ State Employees Deferred Compensation Plan21,000$559 12/31/2019
     MTSI21,000$559 12/31/2019
AQR Capital Management LLC20,978$558 12/31/2019
     MTSI20,978$558 12/31/2019
Wolverine Trading LLC $553 12/31/2019
     Call37,000$989 12/31/2019
     Put16,300$436 12/31/2019
Canada Pension Plan Investment Board20,441$544 12/31/2019
     MTSI20,441$544 12/31/2019
First Manhattan Co.20,000$532 12/31/2019
     MTSI20,000$532 12/31/2019
Boardman Bay Capital Management LLC20,000$532 12/31/2019
     MTSI20,000$532 12/31/2019
Russell Investments Group Ltd.19,761$524 12/31/2019
     MTSI19,761$524 12/31/2019
Price T Rowe Associates Inc. MD19,521$519 12/31/2019
     MTSI19,521$519 12/31/2019
MetLife Investment Management LLC18,984$505 12/31/2019
     MTSI18,984$505 12/31/2019
Two Sigma Investments LP18,903$503 12/31/2019
     MTSI18,903$503 12/31/2019
Supplemental Annuity Collective Trust of NJ16,400$436 12/31/2019
     MTSI16,400$436 12/31/2019
Parallax Volatility Advisers L.P. $413 12/31/2019
     Call15,500$412 12/31/2019
     MTSI51$1 12/31/2019
Jacobs Levy Equity Management Inc.14,861$395 12/31/2019
     MTSI14,861$395 12/31/2019
Marshall Wace North America L.P.14,837$395 12/31/2019
     MTSI14,837$395 12/31/2019
UBS Group AG14,722$391 12/31/2019
     MTSI14,722$391 12/31/2019
First Mercantile Trust Co.14,199$378 12/31/2019
     MTSI14,199$378 12/31/2019
BNP Paribas Arbitrage SA13,869$369 12/31/2019
     MTSI13,869$369 12/31/2019
Metropolitan Life Insurance Co NY13,785$367 12/31/2019
     MTSI13,785$367 12/31/2019
Ontario Teachers Pension Plan Board13,799$367 12/31/2019
     MTSI13,799$367 12/31/2019
BBVA USA Bancshares Inc.13,073$347 12/31/2019
     MTSI13,073$347 12/31/2019
GSA Capital Partners LLP12,926$344 12/31/2019
     MTSI12,926$344 12/31/2019
SkyOak Wealt LLC12,536$333 12/31/2019
     MTSI12,536$333 12/31/2019
Commerce Bank12,355$328 12/31/2019
     MTSI12,355$328 12/31/2019
Trexquant Investment LP11,785$313 12/31/2019
     MTSI11,785$313 12/31/2019
DekaBank Deutsche Girozentrale10,771$292 12/31/2019
     MTSI10,771$292 12/31/2019
AMP Capital Investors Ltd10,900$291 12/31/2019
     MTSI10,900$291 12/31/2019
Ladenburg Thalmann Financial Services Inc.10,802$287 12/31/2019
     MTSI10,802$287 12/31/2019
John G Ullman & Associates Inc.10,700$285 12/31/2019
     MTSI10,700$285 12/31/2019
Citigroup Inc.10,652$283 12/31/2019
     MTSI10,652$283 12/31/2019
AlphaCrest Capital Management LLC10,200$271 12/31/2019
     MTSI10,200$271 12/31/2019
Flagship Harbor Advisors LLC9,832$262 12/31/2019
     MTSI9,832$262 12/31/2019
MAI Capital Management8,753$233 12/31/2019
     MTSI8,753$233 12/31/2019
US Bancorp DE8,661$230 12/31/2019
     MTSI8,661$230 12/31/2019
FDx Advisors Inc.8,510$226 12/31/2019
     MTSI8,510$226 12/31/2019
Stephens Inc. AR8,464$225 12/31/2019
     MTSI8,464$225 12/31/2019
Bank of Montreal Can6,506$173 12/31/2019
     MTSI6,506$173 12/31/2019
Tower Research Capital LLC TRC 4,807$128 12/31/2019
     MTSI4,807$128 12/31/2019
Tiverton Asset Management LLC5,500$118 09/30/2019
     MTSI5,500$118 09/30/2019
Ameritas Investment Partners Inc.4,015$107 12/31/2019
     MTSI4,015$107 12/31/2019
Migdal Insurance & Financial Holdings Ltd.3,837$102 12/31/2019
     MTSI3,837$102 12/31/2019
Great West Life Assurance Co. Can3,028$80 12/31/2019
     MTSI3,028$80 12/31/2019
Zurcher Kantonalbank Zurich Cantonalbank 2,988$79 12/31/2019
     MTSI2,988$79 12/31/2019
Chevy Chase Trust Holdings Inc.2,587$69 12/31/2019
     MTSI2,587$69 12/31/2019
Prelude Capital Management LLC1,861$50 12/31/2019
     MTSI1,861$50 12/31/2019
NumerixS Investment Technologies Inc1,800$48 12/31/2019
     MTSI1,800$48 12/31/2019
Oppenheimer Asset Management Inc.1,710$45 12/31/2019
     MTSI1,710$45 12/31/2019
Glen Harbor Capital Management LLC1,530$33 09/30/2019
     MTSI1,530$33 09/30/2019
Massmutual Trust Co. FSB ADV1,413$30 09/30/2019
     MTSI1,413$30 09/30/2019
Assetmark Inc.1,085$29 12/31/2019
     MTSI1,085$29 12/31/2019
Meadow Creek Investment Management LLC1,260$27 09/30/2019
     MTSI1,260$27 09/30/2019
Advisor Group Inc.869$23 12/31/2019
     MTSI869$23 12/31/2019
Elkfork Partners LLC990$21 09/30/2019
     MTSI990$21 09/30/2019
Nisa Investment Advisors LLC770$20 12/31/2019
     MTSI770$20 12/31/2019
Investors Research Corp700$19 12/31/2019
     MTSI700$19 12/31/2019
Tyers Asset Management LLC720$15 09/30/2019
     MTSI720$15 09/30/2019
Coastal Capital Group Inc.544$14 12/31/2019
     MTSI544$14 12/31/2019
O Shaughnessy Asset Management LLC500$13 12/31/2019
     MTSI500$13 12/31/2019
NEXT Financial Group Inc445$12 12/31/2019
     MTSI445$12 12/31/2019
CWM LLC420$11 12/31/2019
     MTSI420$11 12/31/2019
FTB Advisors Inc.419$11 12/31/2019
     MTSI419$11 12/31/2019
Global Retirement Partners LLC410$11 12/31/2019
     MTSI410$11 12/31/2019
Accurate Investment Solutions Inc.300$8 12/31/2019
     MTSI300$8 12/31/2019
Glenmede Trust Co. NA298$7 12/31/2019
     MTSI298$7 12/31/2019
Macroview Investment Management LLC141$4 12/31/2019
     MTSI141$4 12/31/2019
Squar Milner Financial Services LLC158$4 12/31/2019
     MTSI158$4 12/31/2019
FMR LLC124$3 12/31/2019
     MTSI124$3 12/31/2019
Allred Capital Management LLC85$2 12/31/2019
     MTSI85$2 12/31/2019
Synovus Financial Corp20$1 12/31/2019
     MTSI20$1 12/31/2019
Northwestern Mutual Wealth Management Co.27$1 12/31/2019
     MTSI27$1 12/31/2019
Parkside Financial Bank & Trust27$1 12/31/2019
     MTSI27$1 12/31/2019
Endurance Wealth Management Inc.54$1 12/31/2019
     MTSI54$1 12/31/2019
San Francisco Sentry Investment Group CA56$1 12/31/2019
     MTSI56$1 12/31/2019
Steward Partners Investment Advisory LLC57$1 12/31/2019
     MTSI57$1 12/31/2019
Proequities Inc. $0 12/31/2019
     Put0$0 12/31/2019
     Call0$0 12/31/2019
     MTSI0$0 12/31/2019
Bessemer Group Inc.11$0 12/31/2019
     MTSI11$0 12/31/2019
Woodley Farra Manion Portfolio Management Inc.2$0 12/31/2019
     MTSI2$0 12/31/2019
Tradewinds Capital Management LLC18$0 12/31/2019
     MTSI18$0 12/31/2019
IFP Advisors Inc0$0 12/31/2019
     MTSI0$0 12/31/2019
Selective Wealth Management Inc.5$0 12/31/2019
     MTSI5$0 12/31/2019
Lindbrook Capital LLC0$0 12/31/2019
     MTSI0$0 12/31/2019
Orion Portfolio Solutions LLC10$0 12/31/2019
     MTSI10$0 12/31/2019
Walleye Trading LLC $-561 12/31/2019
     Put32,600$867 12/31/2019
     MTSI6,396$170 12/31/2019
     Call5,100$136 12/31/2019
PEAK6 Investments LLC $-933 12/31/2019
     Put40,200$1,069 12/31/2019
     Call3,000$80 12/31/2019
     MTSI2,092$56 12/31/2019
Susquehanna International Group LLP $-1,668 12/31/2019
     Put102,500$2,727 12/31/2019
     Call39,800$1,059 12/31/2019
Jefferies Group LLC77,500$-2,061 12/31/2019
     Put155,000$4,123 12/31/2019
     MTSI77,500$2,062 12/31/2019

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

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