MASIMO CORP

Ticker: MASI CUSIP: 574795100 Class: Common Stock

Note: Option positions (PUT/CALL) are excluded.

New Positions (73)

Increased Positions (96)

WILSON ASSET MANAGEMENT (INTERNATIONAL) PTY LTD
Value ($000) $5,129 (+27.6%) Shares 39,437 (+44.8%)
Schonfeld Strategic Advisors LLC
Value ($000) $34,471 (+2046.5%) Shares 265,036 (+2335.1%)
WESTFIELD CAPITAL MANAGEMENT CO LP
Value ($000) $197,958 (-5.5%) Shares 1,522,049 (+7.2%)
Gotham Asset Management, LLC
Value ($000) $44,506 (+133.8%) Shares 342,194 (+165.2%)
AQR CAPITAL MANAGEMENT LLC
Value ($000) $141,938 (+3094.5%) Shares 1,091,326 (+3416.5%)
Engineers Gate Manager LP
Value ($000) $10,855 (+139.1%) Shares 83,458 (+171.2%)
DF DENT & CO INC
Value ($000) $18,550 (+15.7%) Shares 142,626 (+31.3%)
Erste Asset Management GmbH
Value ($000) $26,012 (+13.7%) Shares 200,000 (+25.0%)
Polymer Capital Management (US) LLC
Value ($000) $1,239 (+42.9%) Shares 9,523 (+62.1%)
OCCUDO QUANTITATIVE STRATEGIES LP
Value ($000) $1,257 (+65.5%) Shares 9,663 (+87.7%)
DARK FOREST CAPITAL MANAGEMENT LP
Value ($000) $2,131 (+44.3%) Shares 16,385 (+63.7%)
Verition Fund Management LLC
Value ($000) $6,896 (+397.0%) Shares 53,020 (+463.9%)
iSAM Funds (UK) Ltd
Value ($000) $229 (+122.2%) Shares 1,762 (+152.1%)
111 Capital
Value ($000) $373 (+51.9%) Shares 2,871 (+72.3%)
SCHRODER INVESTMENT MANAGEMENT GROUP
Value ($000) $62,324 (+29.5%) Shares 475,504 (+41.2%)
FORA Capital, LLC
Value ($000) $673 (+25.9%) Shares 5,174 (+42.8%)
Versor Investments LP
Value ($000) $464 (+39.5%) Shares 3,564 (+58.3%)
VOLORIDGE INVESTMENT MANAGEMENT, LLC
Value ($000) $5,145 (+1117.9%) Shares 39,557 (+1281.7%)
UBS Group AG
Value ($000) $77,942 (+211.1%) Shares 599,274 (+252.9%)
MILLENNIUM MANAGEMENT LLC
Value ($000) $24,447 (+927.1%) Shares 187,965 (+1065.2%)

Decreased Positions (122)

Alpha Wave Global, LP
Value ($000) $9,826 (-31.4%) Shares 75,552 (-22.2%)
Liontrust Investment Partners LLP
Value ($000) $81,651 (-18.8%) Shares 627,796 (-7.9%)
VIKING GLOBAL INVESTORS LP
Value ($000) $66,895 (-57.8%) Shares 514,340 (-52.1%)
Bayforest Capital Ltd
Value ($000) $60 (-88.5%) Shares 464 (-87.0%)
COMERICA BANK
Value ($000) $1,591 (-95.4%) Shares 12,233 (-94.8%)
Westmount Partners, LLC
Value ($000) $3,152 (-14.5%) Shares 24,232 (-6.3%)
Alyeska Investment Group, L.P.
Value ($000) $163,785 (-19.6%) Shares 1,259,307 (-8.8%)
Blueshift Asset Management, LLC
Value ($000) $256 (-67.5%) Shares 1,966 (-63.1%)
T. Rowe Price Investment Management, Inc.
Value ($000) $78 (-75.1%) Shares 600,293 (-71.8%)
BLI - Banque de Luxembourg Investments
Value ($000) $6,400 (-34.6%) Shares 48,839 (-28.7%)
GLUSKIN SHEFF & ASSOC INC
Value ($000) $3,356 (-18.5%) Shares 25,805 (-7.6%)
Capital Research Global Investors
Value ($000) $82,964 (-69.7%) Shares 637,894 (-65.6%)
Grantham, Mayo, Van Otterloo & Co. LLC
Value ($000) $18,706 (-47.8%) Shares 143,825 (-40.8%)
Sumitomo Mitsui Trust Holdings, Inc.
Value ($000) $1,895 (-96.8%) Shares 14,572 (-96.3%)
Walleye Capital LLC
Value ($000) $5,469 (-58.5%) Shares 42,049 (-52.9%)
Rockefeller Capital Management L.P.
Value ($000) $11,239 (-48.3%) Shares 86,411 (-41.4%)
Toroso Investments, LLC
Value ($000) $11,093 (-43.3%) Shares 85,294 (-35.7%)
BlackRock, Inc.
Value ($000) $1,151,762 (-24.7%) Shares 8,855,619 (-14.5%)
FMR LLC
Value ($000) $1,022,813 (-15.6%) Shares 7,864,164 (-4.3%)
Quantinno Capital Management LP
Value ($000) $1,724 (-70.5%) Shares 13,253 (-66.5%)

Exited Positions (49)