Fidelity Investments’s Masimo MASI Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $258M | Sell |
1,450,823
-6,413,341
| -82% | -$1.01B | 0.01% | 757 |
|
|
2025
Q4 | $1.02B | Sell |
7,864,164
-349,557
| -4% | -$50.1M | 0.05% | 295 |
|
|
2025
Q3 | $1.21B | Buy |
8,213,721
+32,349
| +0.4% | +$4.9M | 0.06% | 244 |
|
|
2025
Q2 | $1.38B | Buy |
8,181,372
+2,609
| +0% | +$417K | 0.08% | 211 |
|
|
2025
Q1 | $1.36B | Buy |
8,178,763
+81,309
| +1% | +$14.1M | 0.09% | 191 |
|
|
2024
Q4 | $1.34B | Buy |
8,097,454
+1,340,836
| +20% | +$212M | 0.08% | 199 |
|
|
2024
Q3 | $901M | Buy |
6,756,618
+1,970,883
| +41% | +$229M | 0.05% | 295 |
|
|
2024
Q2 | $603M | Sell |
4,785,735
-2,191,546
| -31% | -$289M | 0.04% | 381 |
|
|
2024
Q1 | $1.02B | Buy |
6,977,281
+49,709
| +0.7% | +$6.42M | 0.07% | 255 |
|
|
2023
Q4 | $812M | Buy |
6,927,572
+1,680,009
| +32% | +$157M | 0.06% | 282 |
|
|
2023
Q3 | $460M | Sell |
5,247,563
-1,909,714
| -27% | -$222M | 0.04% | 416 |
|
|
2023
Q2 | $1.18B | Buy |
7,157,277
+1,072,321
| +18% | +$187M | 0.1% | 180 |
|
|
2023
Q1 | $1.12B | Buy |
6,084,956
+628,612
| +12% | +$106M | 0.1% | 182 |
|
|
2022
Q4 | $807M | Buy |
5,456,344
+1,599,054
| +41% | +$220M | 0.08% | 242 |
|
|
2022
Q3 | $544M | Buy |
3,857,290
+1,752,351
| +83% | +$256M | 0.06% | 327 |
|
|
2022
Q2 | $275M | Buy |
2,104,939
+35,438
| +2% | +$4.74M | 0.03% | 590 |
|
|
2022
Q1 | $301M | Buy |
2,069,501
+14,603
| +0.7% | +$2.8M | 0.02% | 631 |
|
|
2021
Q4 | $602M | Sell |
2,054,898
-23,092
| -1% | -$6.58M | 0.04% | 392 |
|
|
2021
Q3 | $563M | Sell |
2,077,990
-3,796
| -0.2% | -$1.03M | 0.04% | 395 |
|
|
2021
Q2 | $505M | Sell |
2,081,786
-330,268
| -14% | -$75.4M | 0.04% | 423 |
|
|
2021
Q1 | $554M | Sell |
2,412,054
-1,415,917
| -37% | -$356M | 0.05% | 395 |
|
|
2020
Q4 | $1.03B | Sell |
3,827,971
-618,375
| -14% | -$154M | 0.09% | 200 |
|
|
2020
Q3 | $1.05B | Sell |
4,446,346
-665,723
| -13% | -$149M | 0.11% | 170 |
|
|
2020
Q2 | $1.17B | Sell |
5,112,069
-927,497
| -15% | -$204M | 0.13% | 146 |
|
|
2020
Q1 | $1.07B | Buy |
6,039,566
+1,333,529
| +28% | +$229M | 0.15% | 126 |
|
|
2019
Q4 | $744M | Buy |
4,706,037
+442,681
| +10% | +$66.5M | 0.08% | 236 |
|
|
2019
Q3 | $634M | Buy |
4,263,356
+70,047
| +2% | +$10.6M | 0.08% | 254 |
|
|
2019
Q2 | $624M | Buy |
4,193,309
+14,501
| +0.3% | +$1.99M | 0.07% | 263 |
|
|
2019
Q1 | $578M | Buy |
4,178,808
+289,246
| +7% | +$36.3M | 0.07% | 276 |
|
|
2018
Q4 | $418M | Buy |
3,889,562
+587,587
| +18% | +$65.5M | 0.06% | 328 |
|
|
2018
Q3 | $411M | Buy |
3,301,975
+1,479,981
| +81% | +$164M | 0.05% | 394 |
|
|
2018
Q2 | $178M | Buy |
1,821,994
+1,794,822
| +6,605% | +$171M | 0.02% | 712 |
|
|
2018
Q1 | $2.39M | Buy |
27,172
+1,174
| +5% | +$102K | ﹤0.01% | 2336 |
|
|
2017
Q4 | $2.21M | Buy |
+25,998
| New | +$2.26M | ﹤0.01% | 2335 |
|
|
2017
Q2 | – | Sell |
-150,000
| Closed | -$14M | – | 2650 |
|
|
2017
Q1 | $14M | Sell |
150,000
-300,000
| -67% | -$24.7M | ﹤0.01% | 1840 |
|
|
2016
Q4 | $30.3M | Buy |
450,000
+50,000
| +13% | +$3.07M | ﹤0.01% | 1515 |
|
|
2016
Q3 | $23.8M | Buy |
400,000
+70,000
| +21% | +$3.95M | ﹤0.01% | 1601 |
|
|
2016
Q2 | $17.3M | Sell |
330,000
-57,652
| -15% | -$2.72M | ﹤0.01% | 1745 |
|
|
2016
Q1 | $16.2M | Buy |
387,652
+100
| +0% | +$3.76K | ﹤0.01% | 1773 |
|
|
2015
Q4 | $16.1M | Buy |
387,552
+4,126
| +1% | +$169K | ﹤0.01% | 1778 |
|
|
2015
Q3 | $14.8M | Sell |
383,426
-20,050
| -5% | -$819K | ﹤0.01% | 1776 |
|
|
2015
Q2 | $15.6M | Buy |
403,476
+5,584
| +1% | +$200K | ﹤0.01% | 1838 |
|
|
2015
Q1 | $13.1M | Buy |
397,892
+11,018
| +3% | +$317K | ﹤0.01% | 1900 |
|
|
2014
Q4 | $10.2M | Sell |
386,874
-744,881
| -66% | -$18.4M | ﹤0.01% | 1990 |
|
|
2014
Q3 | $24.1M | Sell |
1,131,755
-3,949,700
| -78% | -$90.2M | ﹤0.01% | 1659 |
|
|
2014
Q2 | $120M | Sell |
5,081,455
-1,067,838
| -17% | -$26.5M | 0.02% | 905 |
|
|
2014
Q1 | $168M | Buy |
6,149,293
+2,326,293
| +61% | +$66.3M | 0.02% | 717 |
|
|
2013
Q4 | $112M | Buy |
3,823,000
+2,316,300
| +154% | +$64.8M | 0.02% | 903 |
|
|
2013
Q3 | $40.1M | Buy |
+1,506,700
| New | +$37.1M | 0.01% | 1386 |
|
Other funds holding MASI
PCM
PCM
HI
VCM
VPM
Fidelity Investments's MASI Position: Q1 2026 in Review
Fidelity Investments reduced its Masimo (MASI) stake by 82% in Q1 2026, selling an estimated $1.01B and leaving 1,450,823 shares worth $258M. The position accounts for 0.01% of the portfolio, ranked #757.
Fidelity Investments first reported a position in MASI in Q3 2013 and has held it in 49 quarters since. The position peaked at $1.38B in Q2 2025. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.
- Fidelity Investments held 1,450,823 shares of Masimo worth $258M as of Q1 2026.
- Fidelity Investments sold 6,413,341 Masimo shares in Q1 2026, an estimated $1.01B.
- Masimo made up 0.01% of Fidelity Investments's portfolio in Q1 2026, its #757 holding.
- Fidelity Investments first reported a position in Masimo in Q3 2013 and has held it in 49 quarters since.
- Fidelity Investments's Masimo position peaked at $1.38B in Q2 2025.
- 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.
Based on Fidelity Investments's 13F filing for Q1 2026, filed 15 May 2026.