Swiss National Bank
MASI

Swiss National Bank’s Masimo MASI Stock Holding History

Swiss National Bank’s Portfolio MASI Stock Details MASI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$16.1M Sell
90,300
-800
-0.9% -$126K 0.01% 730
2025
Q4 		$11.8M Buy
91,100
+1,800
+2% +$258K 0.01% 879
2025
Q3 		$13.2M Buy
89,300
+1,600
+2% +$242K 0.01% 815
2025
Q2 		$14.8M Sell
87,700
-500
-0.6% -$79.9K 0.01% 739
2025
Q1 		$14.7M Sell
88,200
-1,200
-1% -$208K 0.01% 721
2024
Q4 		$14.8M Buy
89,400
+1,100
+1% +$174K 0.01% 751
2024
Q3 		$11.8M Sell
88,300
-200
-0.2% -$23.2K 0.01% 858
2024
Q2 		$11.1M Sell
88,500
-100
-0.1% -$13.2K 0.01% 849
2024
Q1 		$13M Buy
88,600
+200
+0.2% +$25.8K 0.01% 802
2023
Q4 		$10.4M Sell
88,400
-10,200
-10% -$951K 0.01% 871
2023
Q3 		$8.65M Sell
98,600
-62,200
-39% -$7.24M 0.01% 959
2023
Q2 		$26.5M Sell
160,800
-36,900
-19% -$6.42M 0.02% 593
2023
Q1 		$36.5M Sell
197,700
-5,100
-3% -$860K 0.03% 533
2022
Q4 		$30M Sell
202,800
-25,714
-11% -$3.54M 0.02% 561
2022
Q3 		$32.3M Buy
228,514
+1,300
+0.6% +$190K 0.02% 545
2022
Q2 		$29.7M Hold
227,214
– – 0.02% 571
2022
Q1 		$33.1M Buy
227,214
+28,400
+14% +$5.45M 0.02% 588
2021
Q4 		$58.2M Sell
198,814
-7,800
-4% -$2.22M 0.04% 451
2021
Q3 		$55.9M Sell
206,614
-7,300
-3% -$1.98M 0.04% 459
2021
Q2 		$51.9M Sell
213,914
-53,975
-20% -$12.3M 0.03% 498
2021
Q1 		$61.5M Buy
267,889
+34,600
+15% +$8.69M 0.04% 440
2020
Q4 		$62.6M Buy
233,289
+33,189
+17% +$8.28M 0.04% 396
2020
Q3 		$47.2M Sell
200,100
-3,300
-2% -$740K 0.04% 428
2020
Q2 		$46.4M Buy
203,400
+104,600
+106% +$23M 0.04% 422
2020
Q1 		$17.5M Buy
98,800
+1,800
+2% +$309K 0.02% 559
2019
Q4 		$15.3M Buy
97,000
+1,600
+2% +$241K 0.02% 646
2019
Q3 		$14.2M Buy
95,400
+1,400
+1% +$213K 0.02% 652
2019
Q2 		$14M Buy
94,000
+2,300
+3% +$316K 0.02% 665
2019
Q1 		$12.7M Buy
91,700
+4,100
+5% +$515K 0.01% 672
2018
Q4 		$9.41M Buy
87,600
+1,700
+2% +$190K 0.01% 701
2018
Q3 		$10.7M Hold
85,900
– – 0.01% 707
2018
Q2 		$8.39M Hold
85,900
– – 0.01% 798
2018
Q1 		$7.55M Buy
85,900
+1,800
+2% +$157K 0.01% 827
2017
Q4 		$7.13M Buy
84,100
+2,800
+3% +$243K 0.01% 845
2017
Q3 		$7.04M Buy
81,300
+1,500
+2% +$133K 0.01% 830
2017
Q2 		$7.28M Buy
79,800
+2,000
+3% +$184K 0.01% 789
2017
Q1 		$7.26M Buy
77,800
+700
+0.9% +$57.6K 0.01% 791
2016
Q4 		$5.2M Buy
77,100
+1,400
+2% +$86K 0.01% 935
2016
Q3 		$4.5M Sell
75,700
-5,500
-7% -$310K 0.01% 978
2016
Q2 		$4.26M Hold
81,200
– – 0.01% 1004
2016
Q1 		$3.28M Buy
81,200
+14,500
+22% +$545K 0.01% 1114
2015
Q4 		$2.77M Sell
66,700
-1,200
-2% -$49K 0.01% 1118
2015
Q3 		$2.62M Buy
67,900
+8,000
+13% +$327K 0.01% 1133
2015
Q2 		$2.32M Buy
59,900
+1,200
+2% +$43K 0.01% 1212
2015
Q1 		$1.94M Sell
58,700
-1,500
-2% -$43.1K 0.01% 1305
2014
Q4 		$1.59M Hold
60,200
– – 0.01% 1436
2014
Q3 		$1.28M Sell
60,200
-1,300
-2% -$29.7K ﹤0.01% 1514
2014
Q2 		$1.45M Hold
61,500
– – 0.01% 1488
2014
Q1 		$1.68M Buy
61,500
+13,500
+28% +$385K 0.01% 1322
2013
Q4 		$1.4M Hold
48,000
– – 0.01% 1279
2013
Q3 		$1.28M Sell
48,000
-3,000
-6% -$74K 0.01% 1270
2013
Q2 		$1.08M Buy
+51,000
New +$1.07M ﹤0.01% 1366

Other funds holding MASI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
PCM
Politan Capital Management New York $985M AUM 3.12% 1-Year Est. Return
PCM
Pentwater Capital Management Naples, Florida $19.3B AUM 58.13% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $9.85B AUM 55.6% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Swiss National Bank's MASI Position: Q1 2026 in Review

Swiss National Bank reduced its Masimo (MASI) stake by 0.88% in Q1 2026, selling an estimated $126K and leaving 90,300 shares worth $16.1M. The position accounts for 0.01% of the portfolio, ranked #730.

Swiss National Bank first reported a position in MASI in Q2 2013 and has held it in 52 quarters since. The position peaked at $62.6M in Q4 2020. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Swiss National Bank held 90,300 shares of Masimo worth $16.1M as of Q1 2026.
  • Swiss National Bank sold 800 Masimo shares in Q1 2026, an estimated $126K.
  • Masimo made up 0.01% of Swiss National Bank's portfolio in Q1 2026, its #730 holding.
  • Swiss National Bank first reported a position in Masimo in Q2 2013 and has held it in 52 quarters since.
  • Swiss National Bank's Masimo position peaked at $62.6M in Q4 2020.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Swiss National Bank's 13F filing for Q1 2026, filed 7 May 2026.