Masimo
MASI
MASI was delisted on the 9th of June, 2026.
472 hedge funds and large institutions have $10.4B invested in Masimo in 2020 Q2 according to their latest regulatory filings, with 122 funds opening new positions, 155 increasing their positions, 148 reducing their positions, and 45 closing their positions.
171% more first-time investments, than exits
New positions opened: 122 | Existing positions closed: 45
49% more call options, than puts
Call options by funds: $61.5M | Put options by funds: $41.3M
25% more capital invested
Capital invested by funds: $8.31B → $10.4B (+$2.11B)
18% more funds holding
Funds holding: 400 → 472 (+72)
5% more repeat investments, than reductions
Existing positions increased: 155 | Existing positions reduced: 148
2.74% less ownership
Funds ownership: 87.24% → 84.5% (-2.7%)
25% less funds holding in top 10
Funds holding in top 10: 8 → 6 (-2)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$167M |
| 2 |
State Street
Boston,
Massachusetts
|
+$92.5M |
| 3 |
Neuberger Berman Group
New York
|
+$85M |
| 4 |
Wells Fargo
San Francisco,
California
|
+$53M |
| 5 |
OCBV
Ownership Capital B.V.
Amsterdam,
Netherlands
|
+$49.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$204M |
| 2 |
Wellington Management Group
Boston,
Massachusetts
|
-$197M |
| 3 |
Victory Capital Management
San Antonio,
Texas
|
-$172M |
| 4 |
William Blair Investment Management
Chicago,
Illinois
|
-$77.2M |
| 5 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$64M |
MASI Hedge Fund Activity: Q2 2020 in Review
472 of the 4,878 institutional investors tracked by Wall St. Rank reported a position in Masimo (MASI) for Q2 2020, worth a combined $10.4B — up 25% from $8.31B a quarter earlier.
Buyers outnumbered sellers: 122 funds opened new MASI positions and 45 closed out — a net gain of 77 holders — while 155 added to existing stakes and 148 trimmed.
The largest buyer was BlackRock, adding an estimated $167M. The largest seller was Fidelity Investments, cutting an estimated $204M.
- 472 institutional investors held Masimo (MASI) as of Q2 2020, up from 400 in Q1 2020.
- Funds reported $10.4B of Masimo stock for Q2 2020, up 25% quarter-over-quarter.
- 122 funds opened new Masimo positions in Q2 2020 and 45 closed out, a net change of +77 holders.
- The largest Masimo buyer in Q2 2020 was BlackRock, an estimated $167M added.
- The largest Masimo seller in Q2 2020 was Fidelity Investments, an estimated $204M sold.
Based on aggregated 13F filings for Q2 2020.