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 |
|---|---|---|---|---|---|---|---|
|
Jan 09, 2026
Q4 2025
|
Assenagon Asset Management S.A.
|
BUY
|
- |
51.1K+ 2078.47% |
$7.18M - $7.85M
|
53.5K
$8.09M
|
|
|
Jan 08, 2026
Q4 2025
|
Wealth Enhancement Advisory Services, LLC
|
BUY
|
- |
9.42K+ 483.73% |
$1.33M - $1.45M
|
11.4K
$1.72M
|
|
|
Jan 09, 2026
Q4 2025
|
Sg Americas Securities, LLC
|
BUY
|
- |
7.51K+ 84.2% |
$1.06M - $1.15M
|
16.4K
$2.48M
|
|
|
Jan 08, 2026
Q4 2025
|
North Crest Asset Manangement, LLC
|
BUY
|
- |
3.13KNew |
$441K - $482K
|
3.13K
$473K
|
|
|
Jan 12, 2026
Q4 2025
|
Orser Capital Management, LLC
|
BUY
|
- |
2.45KNew |
$345K - $377K
|
2.45K
$370K
|
|
|
Jan 23, 2026
Q4 2025
|
Farther Finance Advisors, LLC
San Francisco, CA |
BUY
|
- |
1.07K+ 99.63% |
$150K - $164K
|
2.14K
$324K
|
|
|
Jan 14, 2026
Q4 2025
|
Exchange Traded Concepts, LLC
|
BUY
|
- |
772+ 17.83% |
$109K - $119K
|
5.1K
$771K
|
|
|
Jan 21, 2026
Q4 2025
|
Flagship Harbor Advisors, LLC
|
BUY
|
- |
111New |
$15.6K - $17.1K
|
111
$16.8K
|
|
|
Jan 23, 2026
Q4 2025
|
Assetmark, Inc
|
BUY
|
- |
97+ 5.53% |
$13.6K - $14.9K
|
1.85K
$280K
|
|
|
Jan 08, 2026
Q4 2025
|
180 Wealth Advisors, LLC
|
BUY
|
- |
42+ 1.6% |
$5.91K - $6.46K
|
2.66K
$402K
|
|
|
Jan 21, 2026
Q4 2025
|
Sjs Investment Consulting Inc.
Sylvania, OH |
BUY
|
- |
41+ 30.37% |
$5.77K - $6.3K
|
176
$26.6K
|
|
|
Jan 20, 2026
Q4 2025
|
Signaturefd, LLC
Atlanta, GA |
BUY
|
- |
26+ 6.81% |
$3.66K - $4K
|
408
$61.7K
|
|
|
Jan 23, 2026
Q4 2025
|
Westside Investment Management, Inc.
|
BUY
|
- |
14New |
$1.97K - $2.15K
|
14
$2.12K
|
|
| Q3 2025 | |||||||
|
Nov 10, 2025
Q3 2025
|
Westfield Capital Management CO LP
Boston, MA |
BUY
|
- |
748K+ 111.36% |
$102M - $128M
|
1.42M
$214M
|
|
|
Nov 14, 2025
Q3 2025
|
Squarepoint Ops LLC
New York, NY |
BUY
|
- |
547K+ 738.79% |
$74.8M - $93.7M
|
621K
$93.8M
|
|
|
Nov 14, 2025
Q3 2025
|
Viking Global Investors LP
|
BUY
|
- |
306K+ 39.87% |
$41.9M - $52.4M
|
1.07M
$162M
|
|
|
Nov 14, 2025
Q3 2025
|
Goldman Sachs Group Inc
New York, NY |
BUY
|
- |
273K+ 57.87% |
$37.3M - $46.8M
|
744K
$112M
|
|
|
Nov 14, 2025
Q3 2025
|
Alyeska Investment Group, L.P.
Chicago, IL |
BUY
|
- |
247K+ 21.74% |
$33.7M - $42.3M
|
1.38M
$209M
|
|
|
Nov 14, 2025
Q3 2025
|
Bank Of America Corp
Charlotte, NC |
BUY
|
- |
215K+ 112.99% |
$29.4M - $36.8M
|
405K
$61.2M
|
|
|
Nov 07, 2025
Q3 2025
|
Vanguard Group Inc
Valley Forge, PA |
BUY
|
- |
172K+ 3.71% |
$23.5M - $29.4M
|
4.81M
$727M
|
|
|
Nov 14, 2025
Q3 2025
|
Adage Capital Partners Gp, L.L.C.
Boston, MA |
BUY
|
- |
150KNew |
$20.5M - $25.7M
|
150K
$22.7M
|
|
|
Oct 29, 2025
Q3 2025
|
Massachusetts Financial Services CO
Boston, MA |
BUY
|
- |
150K+ 6.05% |
$20.5M - $25.6M
|
2.62M
$396M
|
|
|
Nov 13, 2025
Q3 2025
|
Marshall Wace, LLP
London, X0 |
BUY
|
- |
127K+ 1760.74% |
$17.4M - $21.7M
|
134K
$20.3M
|
|
|
Nov 12, 2025
Q3 2025
|
Gw&K Investment Management, LLC
Boston, MA |
BUY
|
- |
124K+ 91786.67% |
$16.9M - $21.2M
|
124K
$18.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Price T Rowe Associates Inc
Baltimore, MD |
BUY
|
- |
109K+ 27.0% |
$15M - $18.8M
|
515K
$77.8M
|
|
|
Nov 14, 2025
Q3 2025
|
Df Dent & CO Inc
Baltimore, MD |
BUY
|
- |
109KNew |
$14.9M - $18.6M
|
109K
$16.4M
|
|
|
Nov 07, 2025
Q3 2025
|
Bnp Paribas Asset Management Holding S.A.
|
BUY
|
- |
99.1K+ 150.57% |
$13.6M - $17M
|
165K
$24.9M
|
|
|
Nov 10, 2025
Q3 2025
|
Jupiter Asset Management LTD
|
BUY
|
- |
84.7KNew |
$11.6M - $14.5M
|
84.7K
$12.8M
|
|
|
Nov 13, 2025
Q3 2025
|
Invesco Ltd.
Atlanta, GA |
BUY
|
- |
84.1K+ 35.42% |
$11.5M - $14.4M
|
321K
$48.6M
|
|
|
Nov 12, 2025
Q3 2025
|
Nuveen, LLC
Charlotte, NC |
BUY
|
- |
76.1K+ 50.82% |
$10.4M - $13M
|
226K
$34.1M
|
|
|
Nov 12, 2025
Q3 2025
|
Erste Asset Management Gmb H
Vienna, C4 |
BUY
|
- |
68K+ 73.91% |
$9.3M - $11.7M
|
160K
$24.2M
|
|
|
Nov 10, 2025
Q3 2025
|
Citigroup Inc
|
BUY
|
- |
66.7K+ 133.52% |
$9.12M - $11.4M
|
117K
$17.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Ameriprise Financial Inc
Minneapolis, MN |
BUY
|
- |
66.5K+ 16.85% |
$9.09M - $11.4M
|
461K
$69.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
- |
63.5K+ 261.45% |
$8.68M - $10.9M
|
87.8K
$13.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Walleye Capital LLC
Plymouth, MN |
BUY
|
- |
46.1K+ 106.71% |
$6.31M - $7.9M
|
89.4K
$13.5M
|
|
|
Nov 12, 2025
Q3 2025
|
Geode Capital Management, LLC
Boston, MA |
BUY
|
- |
46K+ 5.13% |
$6.29M - $7.89M
|
942K
$142M
|
|
|
Nov 13, 2025
Q3 2025
|
Comerica Bank
|
BUY
|
- |
43.6K+ 22.97% |
$5.96M - $7.47M
|
233K
$35.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Amundi
Paris, I0 |
BUY
|
- |
43.3K+ 104.16% |
$5.92M - $7.42M
|
84.9K
$12.8M
|
|
|
Nov 13, 2025
Q3 2025
|
Capital Fund Management S.A.
Paris, I0 |
BUY
|
- |
34.4KNew |
$4.71M - $5.9M
|
34.4K
$5.2M
|
|
|
Nov 14, 2025
Q3 2025
|
Rockefeller Capital Management L.P.
New York, NY |
BUY
|
- |
31.8K+ 27.5% |
$4.35M - $5.45M
|
147K
$22.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Paul Tudor Jones
Tudor Investment Corp Et Al | Stamford, Ct
|
BUY
|
- |
31.6KNew |
$4.33M - $5.42M
|
31.6K
$4.78M
|
|
|
Nov 13, 2025
Q3 2025
|
Ubs Group Ag
|
BUY
|
- |
27.6K+ 19.44% |
$3.78M - $4.74M
|
170K
$25.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Toroso Investments, LLC
Massapequa, NY |
BUY
|
- |
26.4K+ 24.82% |
$3.61M - $4.52M
|
133K
$20M
|
|
|
Nov 14, 2025
Q3 2025
|
Engineers Gate Manager LP
New York, NY |
BUY
|
- |
23.9K+ 347.74% |
$3.27M - $4.1M
|
30.8K
$4.65M
|
|
|
Nov 12, 2025
Q3 2025
|
Barclays PLC
London, X0 |
BUY
|
- |
21.7K+ 38.65% |
$2.97M - $3.72M
|
77.8K
$11.8M
|
|
|
Nov 06, 2025
Q3 2025
|
Ing Groep Nv
|
BUY
|
- |
20.8KNew |
$2.84M - $3.56M
|
20.8K
$3.14M
|
|
|
Nov 14, 2025
Q3 2025
|
Gluskin Sheff & Assoc Inc
Toronto, A6 |
BUY
|
- |
19.7K+ 239.53% |
$2.69M - $3.38M
|
27.9K
$4.22M
|
|
|
Nov 12, 2025
Q3 2025
|
Cramer Rosenthal Mcglynn LLC
Greenwich, CT |
BUY
|
- |
19.7K+ 20.71% |
$2.69M - $3.37M
|
115K
$17.3M
|
|
|
Nov 13, 2025
Q3 2025
|
Kayne Anderson Rudnick Investment Management LLC
Los Angeles, CA |
BUY
|
- |
16.8K+ 335040.0% |
$2.29M - $2.87M
|
16.8K
$2.53M
|
|
|
Nov 12, 2025
Q3 2025
|
American Century Companies Inc
Kansas City, MO |
BUY
|
- |
16.1K+ 10.58% |
$2.2M - $2.76M
|
168K
$25.4M
|
|