Latest Institutional Purchases of Masimo Corp (MASI)
This list provides information on the latest institutional transactions involving Masimo Corp (MASI) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Aug 14, 2025
Q2 2025
|
T. Rowe Price Investment Management, Inc.
Baltimore, MD |
BUY
|
- |
827K+ 49.42% |
$119M - $142M
|
2.5M
$375M
|
|
|
Aug 14, 2025
Q2 2025
|
Viking Global Investors LP
|
BUY
|
- |
767KNew |
$111M - $132M
|
767K
$115M
|
|
|
Aug 08, 2025
Q2 2025
|
Massachusetts Financial Services CO
Boston, MA |
BUY
|
- |
503K+ 25.54% |
$72.6M - $86.4M
|
2.47M
$371M
|
|
|
Aug 14, 2025
Q2 2025
|
Alyeska Investment Group, L.P.
Chicago, IL |
BUY
|
- |
412K+ 57.02% |
$59.5M - $70.8M
|
1.13M
$170M
|
|
|
Aug 13, 2025
Q2 2025
|
Jeremy Grantham
Grantham, Mayo, Van Otterloo & Co. LLC | Boston, Ma
|
BUY
|
- |
241KNew |
$34.7M - $41.4M
|
241K
$36.1M
|
|
|
Aug 14, 2025
Q2 2025
|
Goldman Sachs Group Inc
New York, NY |
BUY
|
- |
191K+ 68.25% |
$27.6M - $32.9M
|
472K
$70.8M
|
|
|
Aug 14, 2025
Q2 2025
|
Ameriprise Financial Inc
Minneapolis, MN |
BUY
|
- |
183K+ 86.27% |
$26.4M - $31.4M
|
394K
$59.2M
|
|
|
Aug 14, 2025
Q2 2025
|
Hawk Ridge Capital Management LP
Los Angeles, CA |
BUY
|
- |
149KNew |
$21.5M - $25.6M
|
149K
$22.3M
|
|
|
Aug 14, 2025
Q2 2025
|
Price T Rowe Associates Inc
Baltimore, MD |
BUY
|
- |
123K+ 43.46% |
$17.7M - $21.1M
|
405K
$60.9M
|
|
|
Aug 14, 2025
Q2 2025
|
Rockefeller Capital Management L.P.
New York, NY |
BUY
|
- |
116KNew |
$16.7M - $19.9M
|
116K
$17.4M
|
|
|
Aug 13, 2025
Q2 2025
|
Alpha Wave Global, LP
New York, NY |
BUY
|
- |
102KNew |
$14.7M - $17.6M
|
102K
$15.3M
|
|
|
Jul 31, 2025
Q2 2025
|
Sumitomo Mitsui Trust Holdings, Inc.
|
BUY
|
- |
98.1K+ 26.29% |
$14.2M - $16.9M
|
471K
$70.7M
|
|
|
Aug 14, 2025
Q2 2025
|
Pfm Health Sciences, LP
San Francisco, CA |
BUY
|
- |
94.5KNew |
$13.6M - $16.2M
|
94.5K
$14.2M
|
|
|
Jul 28, 2025
Q2 2025
|
Td Asset Management Inc
|
BUY
|
- |
78.5K+ 88.54% |
$11.3M - $13.5M
|
167K
$25.1M
|
|
|
Aug 12, 2025
Q2 2025
|
American Century Companies Inc
Kansas City, MO |
BUY
|
- |
73.1K+ 92.27% |
$10.5M - $12.6M
|
152K
$22.9M
|
|
|
Aug 14, 2025
Q2 2025
|
Bamco Inc
New York, NY |
BUY
|
- |
67.3K+ 21.21% |
$9.72M - $11.6M
|
385K
$57.7M
|
|
|
Aug 05, 2025
Q2 2025
|
Bnp Paribas Asset Management Holding S.A.
|
BUY
|
- |
65.8KNew |
$9.5M - $11.3M
|
65.8K
$9.88M
|
|
|
Aug 14, 2025
Q2 2025
|
Royal Bank Of Canada
Toronto, A6 |
BUY
|
- |
65.8K+ 149.95% |
$9.5M - $11.3M
|
110K
$16.5M
|
|
|
Aug 14, 2025
Q2 2025
|
Squarepoint Ops LLC
New York, NY |
BUY
|
- |
57.4K+ 344.13% |
$8.28M - $9.86M
|
74K
$11.1M
|
|
|
Aug 14, 2025
Q2 2025
|
Quantinno Capital Management LP
New York, NY |
BUY
|
- |
56.6K+ 88.87% |
$8.18M - $9.74M
|
120K
$18.1M
|
|
|
Aug 11, 2025
Q2 2025
|
Vanguard Group Inc
Valley Forge, PA |
BUY
|
- |
54.9K+ 1.2% |
$7.92M - $9.43M
|
4.64M
$696M
|
|
|
Aug 08, 2025
Q2 2025
|
Geode Capital Management, LLC
Boston, MA |
BUY
|
- |
52.1K+ 6.17% |
$7.52M - $8.96M
|
896K
$135M
|
|
|
Aug 13, 2025
Q2 2025
|
Comerica Bank
|
BUY
|
- |
52K+ 37.7% |
$7.5M - $8.94M
|
190K
$28.5M
|
|
|
Aug 14, 2025
Q2 2025
|
Woodline Partners LP
San Francisco, CA |
BUY
|
- |
49.7K+ 37.41% |
$7.18M - $8.55M
|
183K
$27.4M
|
|
|
Aug 14, 2025
Q2 2025
|
Cinctive Capital Management LP
New York, NY |
BUY
|
- |
46.8KNew |
$6.76M - $8.05M
|
46.8K
$7.02M
|
|
|
Aug 13, 2025
Q2 2025
|
Natixis
Paris, I0 |
BUY
|
- |
45.6KNew |
$6.59M - $7.85M
|
45.6K
$6.85M
|
|
|
Aug 14, 2025
Q2 2025
|
Aqr Capital Management LLC
Greenwich, CT |
BUY
|
- |
42.1K+ 517.24% |
$6.08M - $7.24M
|
50.3K
$7.54M
|
|
|
Aug 13, 2025
Q2 2025
|
Norges Bank
Oslo, Q8 |
BUY
|
- |
39.1KNew |
$5.64M - $6.72M
|
39.1K
$5.86M
|
|
|
Aug 14, 2025
Q2 2025
|
Durable Capital Partners LP
Bethesda, MD |
BUY
|
- |
38.3K+ 3.4% |
$5.53M - $6.58M
|
1.16M
$175M
|
|
|
Aug 15, 2025
Q2 2025
|
Morgan Stanley
New York, NY |
BUY
|
- |
31.6K+ 4.29% |
$4.56M - $5.43M
|
767K
$115M
|
|
|
Jul 28, 2025
Q2 2025
|
Wilson Asset Management (International) Pty LTD
Sydney, C3 |
BUY
|
- |
27.2KNew |
$3.93M - $4.68M
|
27.2K
$4.09M
|
|
|
Aug 14, 2025
Q2 2025
|
Point72 (Difc) LTD
Dubai, C0 |
BUY
|
- |
27.1K+ 64.99% |
$3.91M - $4.65M
|
68.7K
$10.3M
|
|
|
Jul 09, 2025
Q2 2025
|
Harbor Capital Advisors, Inc.
|
BUY
|
- |
26.4KNew |
$3.81M - $4.54M
|
26.4K
$3.97M
|
|
|
Aug 14, 2025
Q2 2025
|
Joel Greenblatt
Gotham Asset Management, LLC | New York, Ny
|
BUY
|
- |
20.8K+ 14.36% |
$3M - $3.57M
|
165K
$24.8M
|
|
|
Aug 14, 2025
Q2 2025
|
Ubs Asset Management Americas Inc
Chicago, IL |
BUY
|
- |
20.4K+ 10.8% |
$2.95M - $3.51M
|
210K
$31.5M
|
|
|
Aug 14, 2025
Q2 2025
|
Bellevue Group Ag
Kuesnacht, V8 |
BUY
|
- |
19.9K+ 28.46% |
$2.87M - $3.42M
|
89.7K
$13.5M
|
|
|
Aug 13, 2025
Q2 2025
|
Barclays PLC
London, X0 |
BUY
|
- |
16.3K+ 40.8% |
$2.35M - $2.8M
|
56.1K
$8.42M
|
|
|
Aug 04, 2025
Q2 2025
|
Strs Ohio
|
BUY
|
- |
15.8K+ 39.49% |
$2.29M - $2.73M
|
56K
$8.4M
|
|
|
Aug 14, 2025
Q2 2025
|
4 D Advisors, LLC
Redondo Beach, CA |
BUY
|
- |
15K+ 50.0% |
$2.17M - $2.58M
|
45K
$6.76M
|
|
|
Aug 07, 2025
Q2 2025
|
Commerce Bank
Kansas City, MO |
BUY
|
- |
14.4K+ 286.74% |
$2.08M - $2.48M
|
19.4K
$2.92M
|
|
|
Aug 08, 2025
Q2 2025
|
Sg Americas Securities, LLC
|
BUY
|
- |
13.1K+ 809.8% |
$1.9M - $2.26M
|
14.8K
$2.22M
|
|
|
Aug 13, 2025
Q2 2025
|
Schroder Investment Management Group
London, X0 |
BUY
|
- |
13K+ 2.97% |
$1.87M - $2.23M
|
449K
$67.3M
|
|
|
Aug 12, 2025
Q2 2025
|
Xtx Topco LTD
London, X0 |
BUY
|
- |
10.8KNew |
$1.56M - $1.86M
|
10.8K
$1.63M
|
|
|
Aug 14, 2025
Q2 2025
|
Graham Capital Management, L.P.
Rowayton, CT |
BUY
|
- |
10.5KNew |
$1.51M - $1.8M
|
10.5K
$1.57M
|
|
|
Aug 14, 2025
Q2 2025
|
State Street Corp
Boston, MA |
BUY
|
- |
10.4K+ 0.7% |
$1.5M - $1.79M
|
1.49M
$223M
|
|
|
Aug 13, 2025
Q2 2025
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
BUY
|
- |
10.4K+ 69.18% |
$1.5M - $1.78M
|
25.4K
$3.81M
|
|
|
Aug 14, 2025
Q2 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
10.3K+ 188.92% |
$1.48M - $1.76M
|
15.7K
$2.35M
|
|
|
Aug 14, 2025
Q2 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
PUT |
9.3K+ 82.3% |
$1.34M - $1.6M
|
20.6K
$3.09M
|
|
|
Aug 14, 2025
Q2 2025
|
Voya Investment Management LLC
Atlanta, GA |
BUY
|
- |
7.31K+ 59.53% |
$1.06M - $1.26M
|
19.6K
$2.94M
|
|
|
Aug 14, 2025
Q2 2025
|
Summit Trail Advisors, LLC
New York, NY |
BUY
|
- |
7.16KNew |
$1.03M - $1.23M
|
7.16K
$1.07M
|