California Public Employees Retirement System
MASI

California Public Employees Retirement System’s Masimo MASI Stock Holding History

California Public Employees Retirement System’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 		$13.8M Buy
77,397
+14,038
+22% +$2.2M 0.01% 767
2025
Q4 		$8.24M Sell
63,359
-15,101
-19% -$2.16M ﹤0.01% 955
2025
Q3 		$11.6M Buy
78,460
+5,653
+8% +$856K 0.01% 845
2025
Q2 		$12.2M Buy
72,807
+2,932
+4% +$468K 0.01% 789
2025
Q1 		$11.6M Sell
69,875
-354
-0.5% -$61.4K 0.01% 781
2024
Q4 		$11.6M Sell
70,229
-3,084
-4% -$487K 0.01% 810
2024
Q3 		$9.77M Sell
73,313
-1,400
-2% -$162K 0.01% 914
2024
Q2 		$9.41M Buy
74,713
+13,098
+21% +$1.72M 0.01% 890
2024
Q1 		$9.05M Sell
61,615
-15,843
-20% -$2.05M 0.01% 923
2023
Q4 		$9.08M Sell
77,458
-5,837
-7% -$544K 0.01% 903
2023
Q3 		$7.3M Sell
83,295
-9,576
-10% -$1.11M 0.01% 959
2023
Q2 		$15.3M Sell
92,871
-2,836
-3% -$494K 0.01% 695
2023
Q1 		$17.7M Sell
95,707
-14,807
-13% -$2.5M 0.02% 636
2022
Q4 		$16.4M Sell
110,514
-2,835
-3% -$390K 0.01% 698
2022
Q3 		$16M Buy
113,349
+19,786
+21% +$2.89M 0.01% 665
2022
Q2 		$12.2M Sell
93,563
-3,310
-3% -$443K 0.01% 717
2022
Q1 		$14.1M Sell
96,873
-297,163
-75% -$57.1M 0.01% 755
2021
Q4 		$115M Sell
394,036
-6,520
-2% -$1.86M 0.08% 239
2021
Q3 		$108M Buy
400,556
+2,493
+0.6% +$676K 0.08% 241
2021
Q2 		$96.5M Buy
398,063
+6,194
+2% +$1.41M 0.07% 281
2021
Q1 		$90M Sell
391,869
-23,914
-6% -$6.01M 0.07% 278
2020
Q4 		$112M Sell
415,783
-7,193
-2% -$1.79M 0.09% 230
2020
Q3 		$99.8M Buy
422,976
+314,843
+291% +$70.6M 0.09% 224
2020
Q2 		$24.7M Buy
108,133
+1,645
+2% +$361K 0.02% 491
2020
Q1 		$18.9M Sell
106,488
-5,400
-5% -$926K 0.02% 493
2019
Q4 		$17.7M Sell
111,888
-4,186
-4% -$629K 0.02% 651
2019
Q3 		$17.3M Buy
116,074
+32,407
+39% +$4.92M 0.02% 625
2019
Q2 		$12.5M Buy
83,667
+6,549
+8% +$899K 0.01% 674
2019
Q1 		$10.7M Sell
77,118
-807
-1% -$101K 0.01% 768
2018
Q4 		$8.37M Buy
77,925
+12,248
+19% +$1.37M 0.01% 843
2018
Q3 		$8.18M Sell
65,677
-13,360
-17% -$1.48M 0.01% 1000
2018
Q2 		$7.72M Sell
79,037
-4,812
-6% -$458K 0.01% 1033
2018
Q1 		$7.38M Sell
83,849
-25,645
-23% -$2.24M 0.01% 1082
2017
Q4 		$9.29M Buy
109,494
+11,178
+11% +$970K 0.01% 969
2017
Q3 		$8.51M Buy
98,316
+6,816
+7% +$603K 0.01% 968
2017
Q2 		$8.34M Sell
91,500
-4,800
-5% -$441K 0.01% 938
2017
Q1 		$8.98M Sell
96,300
-4,392
-4% -$362K 0.01% 899
2016
Q4 		$6.79M Sell
100,692
-3,200
-3% -$197K 0.01% 1070
2016
Q3 		$6.18M Sell
103,892
-7,200
-6% -$406K 0.01% 1159
2016
Q2 		$5.83M Sell
111,092
-7,600
-6% -$358K 0.01% 1170
2016
Q1 		$4.97M Sell
118,692
-5,800
-5% -$218K 0.01% 1284
2015
Q4 		$5.17M Sell
124,492
-4,700
-4% -$192K 0.01% 1275
2015
Q3 		$4.98M Sell
129,192
-2,100
-2% -$85.8K 0.01% 1271
2015
Q2 		$5.09M Hold
131,292
– – 0.01% 1386
2015
Q1 		$3.54M Hold
131,292
– – ﹤0.01% 1698
2014
Q4 		$3.54M Buy
131,292
+10,700
+9% +$264K ﹤0.01% 1698
2014
Q3 		$2.57M Buy
120,592
+16,600
+16% +$379K ﹤0.01% 1906
2014
Q2 		$2.45M Buy
103,992
+4,300
+4% +$107K ﹤0.01% 1981
2014
Q1 		$2.64M Buy
99,692
+1,600
+2% +$45.6K ﹤0.01% 1900
2013
Q4 		$2.83M Buy
98,092
+539
+0.6% +$15.1K ﹤0.01% 1845
2013
Q3 		$2.6M Buy
97,553
+17,400
+22% +$429K ﹤0.01% 1748
2013
Q2 		$1.7M Buy
+80,153
New +$1.69M ﹤0.01% 1872

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

California Public Employees Retirement System's MASI Position: Q1 2026 in Review

California Public Employees Retirement System increased its Masimo (MASI) stake by 22% in Q1 2026, buying an estimated $2.2M and bringing the position to 77,397 shares worth $13.8M. The position accounts for 0.01% of the portfolio, ranked #767.

California Public Employees Retirement System first reported a position in MASI in Q2 2013 and has held it in 52 quarters since. The position peaked at $115M in Q4 2021. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • California Public Employees Retirement System held 77,397 shares of Masimo worth $13.8M as of Q1 2026.
  • California Public Employees Retirement System bought 14,038 Masimo shares in Q1 2026, an estimated $2.2M.
  • Masimo made up 0.01% of California Public Employees Retirement System's portfolio in Q1 2026, its #767 holding.
  • California Public Employees Retirement System first reported a position in Masimo in Q2 2013 and has held it in 52 quarters since.
  • California Public Employees Retirement System's Masimo position peaked at $115M in Q4 2021.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on California Public Employees Retirement System's 13F filing for Q1 2026, filed 6 May 2026.