ASRS
MASI

Arizona State Retirement System’s Masimo MASI Stock Holding History

Arizona State 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 		$2.23M Sell
12,541
-277
-2% -$43.5K 0.01% 695
2025
Q4 		$1.67M Sell
12,818
-791
-6% -$113K 0.01% 845
2025
Q3 		$2.01M Buy
13,609
+224
+2% +$33.9K 0.01% 783
2025
Q2 		$2.25M Buy
13,385
+357
+3% +$57K 0.01% 710
2025
Q1 		$2.17M Sell
13,028
-155
-1% -$26.9K 0.01% 694
2024
Q4 		$2.18M Buy
13,183
+166
+1% +$26.2K 0.01% 714
2024
Q3 		$1.74M Buy
13,017
+426
+3% +$49.4K 0.01% 832
2024
Q2 		$1.59M Buy
12,591
+247
+2% +$32.5K 0.01% 821
2024
Q1 		$1.81M Sell
12,344
-207
-2% -$26.7K 0.01% 773
2023
Q4 		$1.47M Sell
12,551
-222
-2% -$20.7K 0.01% 840
2023
Q3 		$1.12M Buy
12,773
+571
+5% +$66.5K 0.01% 929
2023
Q2 		$2.01M Sell
12,202
-2,316
-16% -$403K 0.02% 667
2023
Q1 		$2.68M Buy
14,518
+392
+3% +$66.1K 0.02% 562
2022
Q4 		$2.09M Sell
14,126
-352
-2% -$48.4K 0.02% 626
2022
Q3 		$2.04M Sell
14,478
-201
-1% -$29.4K 0.02% 604
2022
Q2 		$1.92M Buy
14,679
+76
+0.5% +$10.2K 0.02% 635
2022
Q1 		$2.13M Buy
14,603
+362
+3% +$69.5K 0.02% 677
2021
Q4 		$4.17M Sell
14,241
-422
-3% -$120K 0.03% 473
2021
Q3 		$3.97M Sell
14,663
-177
-1% -$48K 0.03% 480
2021
Q2 		$3.6M Sell
14,840
-240
-2% -$54.8K 0.03% 511
2021
Q1 		$3.46M Buy
15,080
+111
+0.7% +$27.9K 0.03% 516
2020
Q4 		$4.02M Sell
14,969
-675
-4% -$168K 0.04% 448
2020
Q3 		$3.69M Buy
15,644
+3,669
+31% +$822K 0.04% 417
2020
Q2 		$2.73M Buy
11,975
+18
+0.2% +$3.95K 0.04% 407
2020
Q1 		$2.12M Sell
11,957
-15,863
-57% -$2.72M 0.04% 449
2019
Q4 		$4.4M Sell
27,820
-2,756
-9% -$414K 0.05% 446
2019
Q3 		$4.55M Sell
30,576
-5,050
-14% -$767K 0.06% 427
2019
Q2 		$5.3M Buy
35,626
+500
+1% +$68.6K 0.06% 398
2019
Q1 		$4.86M Buy
35,126
+132
+0.4% +$16.6K 0.06% 429
2018
Q4 		$3.76M Buy
34,994
+914
+3% +$102K 0.05% 513
2018
Q3 		$4.24M Buy
34,080
+1,004
+3% +$111K 0.04% 571
2018
Q2 		$3.23M Buy
33,076
+960
+3% +$91.3K 0.03% 702
2018
Q1 		$2.83M Sell
32,116
-2,100
-6% -$183K 0.03% 790
2017
Q4 		$2.9M Buy
34,216
+7,162
+26% +$621K 0.03% 822
2017
Q3 		$2.34M Buy
27,054
+7,854
+41% +$694K 0.03% 662
2017
Q2 		$1.75M Buy
19,200
+500
+3% +$45.9K 0.02% 647
2017
Q1 		$1.74M Sell
18,700
-4,042
-18% -$333K 0.02% 641
2016
Q4 		$1.53M Hold
22,742
– – 0.02% 683
2016
Q3 		$1.35M Sell
22,742
-100
-0.4% -$5.64K 0.02% 707
2016
Q2 		$1.2M Hold
22,842
– – 0.02% 761
2016
Q1 		$956K Buy
22,842
+300
+1% +$11.3K 0.01% 909
2015
Q4 		$936K Buy
22,542
+500
+2% +$20.4K 0.01% 909
2015
Q3 		$850K Buy
+22,042
New +$901K 0.01% 935
2014
Q4 		$877K Sell
33,300
-1,300
-4% -$32.1K 0.01% 1129
2014
Q3 		$736K Sell
34,600
-3,500
-9% -$79.9K 0.01% 1159
2014
Q2 		$899K Buy
38,100
+6,339
+20% +$157K 0.01% 1126
2014
Q1 		$867K Sell
31,761
-3,900
-11% -$111K 0.01% 1105
2013
Q4 		$1.04M Sell
35,661
-4,600
-11% -$129K 0.01% 1086
2013
Q3 		$1.07M Buy
40,261
+900
+2% +$22.2K 0.01% 1077
2013
Q2 		$834K Buy
+39,361
New +$828K 0.01% 1136

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

Arizona State Retirement System's MASI Position: Q1 2026 in Review

Arizona State Retirement System reduced its Masimo (MASI) stake by 2.2% in Q1 2026, selling an estimated $43.5K and leaving 12,541 shares worth $2.23M. The position accounts for 0.01% of the portfolio, ranked #695.

Arizona State Retirement System first reported a position in MASI in Q2 2013 and has held it in 50 quarters since. The position peaked at $5.3M in Q2 2019. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Arizona State Retirement System held 12,541 shares of Masimo worth $2.23M as of Q1 2026.
  • Arizona State Retirement System sold 277 Masimo shares in Q1 2026, an estimated $43.5K.
  • Masimo made up 0.01% of Arizona State Retirement System's portfolio in Q1 2026, its #695 holding.
  • Arizona State Retirement System first reported a position in Masimo in Q2 2013 and has held it in 50 quarters since.
  • Arizona State Retirement System's Masimo position peaked at $5.3M in Q2 2019.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Arizona State Retirement System's 13F filing for Q1 2026, filed 1 May 2026.