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

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.