Real-Time Quote
 -0.10 / -0.37%
Today’s Change
Today|||52-Week Range
Institutional investors purchased a net $646.5 thousand shares of MASI during the quarter ended December 2013, and now own 87.41% of the total float, a percentage that is typical for companies in the Medical Specialties industry.
Mutual fund holders51.69%
Other institutional35.72%
Individual stakeholders11.47%

Largest Quarterly Institutional

Latest Institutional Activity

2/28/2014FIDELITY MANAGEMENT & RESEARCH C...  Bought 1.9 Million shares of Masimo Corp
1/31/2014IST INVESTMENTSTIFTUNG FUER PERS...  Bought 12.6 Thousand shares of Masimo Corp
3/31/2014MARSHALL WACE LLP  Bought 6.9 Thousand shares of Masimo Corp

Top 10 Owners of Masimo Corp

Total value ($)Shares
bought / sold
Fidelity Management & Research Co...10.06%5,704,300155,784,433+1,881,300+49.21%
Janus Capital Management LLC9.62%5,454,141148,952,591-145,204-2.59%
BlackRock Fund Advisors6.87%3,893,292106,325,805-67,412-1.70%
The Vanguard Group, Inc.5.46%3,095,13584,528,137+105,902+3.54%
Bares Capital Management, Inc.3.80%2,153,14458,802,363-237,262-9.93%
Champlain Investment Partners LLC3.74%2,119,27057,877,264-43,745-2.02%
SSgA Funds Management, Inc.2.80%1,589,07043,397,502-27,789-1.72%
Camber Capital Management LLC2.51%1,425,00038,916,750-325,000-18.57%
Westfield Capital Management Co. ...2.49%1,410,51338,521,110-70,845-4.78%
BAMCO, Inc.2.42%1,370,01437,415,082-673,330-32.95%

Top 10 Mutual Funds Holding Masimo Corp

Mutual fundStakeShares
Total value ($)Shares
bought / sold
Janus Triton Fund3.75%2,128,63558,133,022-95,886-4.31%
Fidelity Select Health Care Portf...2.82%1,600,00043,696,000+200,000+14.29%
Janus Enterprise Fund2.26%1,279,50734,943,336+5,431+0.43%
Fidelity Select Medical Equipment...2.20%1,250,00034,137,500+150,000+13.64%
Janus Venture Fund1.87%1,059,18628,926,370-14,388-1.34%
Baron Small Cap Fund1.76%995,55327,188,552-626,069-38.61%
Vanguard Small Cap Index Fund1.51%858,09623,434,602+2,355+0.28%
iShares Russell 2000 ETF1.46%829,29822,648,128+45,607+5.82%
Vanguard Total Stock Market Index...1.38%784,80921,433,134-1,312-0.17%
iShares Core S&P Mid Cap ETF1.19%673,20518,385,229-3,027-0.45%

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