Masimo
MASI
MASI was delisted on the 9th of June, 2026.
416 hedge funds and large institutions have $5.79B invested in Masimo in 2022 Q2 according to their latest regulatory filings, with 55 funds opening new positions, 147 increasing their positions, 156 reducing their positions, and 88 closing their positions.
67% more funds holding in top 10
Funds holding in top 10: 3 → 5 (+2)
6% less repeat investments, than reductions
Existing positions increased: 147 | Existing positions reduced: 156
2.16% less ownership
Funds ownership: 82.01% → 79.85% (-2.2%)
9% less funds holding
Funds holding: 457 → 416 (-41)
12% less capital invested
Capital invested by funds: $6.61B → $5.79B (-$814M)
18% less call options, than puts
Call options by funds: $10.3M | Put options by funds: $12.7M
38% less first-time investments, than exits
New positions opened: 55 | Existing positions closed: 88
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Nomura Holdings
Tokyo,
Japan
|
+$239M |
| 2 |
Morgan Stanley
New York
|
+$119M |
| 3 |
Goldman Sachs
New York
|
+$55M |
| 4 |
Bank of Nova Scotia
Toronto,
Ontario, Canada
|
+$40.6M |
| 5 |
Schroder Investment Management Group
London,
United Kingdom
|
+$30.8M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$147M |
| 2 |
OCBV
Ownership Capital B.V.
Amsterdam,
Netherlands
|
-$135M |
| 3 |
Marshall Wace
London,
United Kingdom
|
-$90.6M |
| 4 |
Two Sigma Investments
New York
|
-$55M |
| 5 |
ACH
ArrowMark Colorado Holdings
Denver,
Colorado
|
-$42.3M |
MASI Hedge Fund Activity: Q2 2022 in Review
416 of the 5,937 institutional investors tracked by Wall St. Rank reported a position in Masimo (MASI) for Q2 2022, worth a combined $5.79B — down 12% from $6.61B a quarter earlier.
Sellers outnumbered buyers: 88 funds closed out of MASI and 55 opened new positions — a net loss of 33 holders — while 156 trimmed existing stakes and 147 added.
The largest buyer was Nomura Holdings, opening a new position worth an estimated $239M. The largest seller was BlackRock, cutting an estimated $147M.
- 416 institutional investors held Masimo (MASI) as of Q2 2022, down from 457 in Q1 2022.
- Funds reported $5.79B of Masimo stock for Q2 2022, down 12% quarter-over-quarter.
- 55 funds opened new Masimo positions in Q2 2022 and 88 closed out, a net change of -33 holders.
- The largest Masimo buyer in Q2 2022 was Nomura Holdings, an estimated $239M added.
- The largest Masimo seller in Q2 2022 was BlackRock, an estimated $147M sold.
Based on aggregated 13F filings for Q2 2022.