SDIC
MASI

South Dakota Investment Council’s Masimo MASI Stock Holding History

South Dakota Investment Council’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 		$3.13M Sell
17,568
-3,700
-17% -$581K 0.06% 241
2025
Q4 		$2.77M Sell
21,268
-1,800
-8% -$258K 0.05% 257
2025
Q3 		$3.4M Sell
23,068
-1,700
-7% -$257K 0.07% 235
2025
Q2 		$4.17M Hold
24,768
– – 0.08% 217
2025
Q1 		$4.13M Sell
24,768
-5,843
-19% -$1.01M 0.08% 204
2024
Q4 		$5.06M Hold
30,611
– – 0.1% 179
2024
Q3 		$4.08M Hold
30,611
– – 0.08% 211
2024
Q2 		$3.85M Sell
30,611
-36
-0.1% -$4.74K 0.08% 213
2024
Q1 		$4.5M Sell
30,647
-1,800
-6% -$232K 0.09% 190
2023
Q4 		$3.8M Hold
32,447
– – 0.08% 225
2023
Q3 		$2.85M Sell
32,447
-500
-2% -$58.2K 0.06% 249
2023
Q2 		$5.42M Buy
32,947
+900
+3% +$157K 0.11% 173
2023
Q1 		$5.91M Hold
32,047
– – 0.13% 160
2022
Q4 		$4.74M Hold
32,047
– – 0.11% 183
2022
Q3 		$4.52M Hold
32,047
– – 0.11% 178
2022
Q2 		$4.19M Buy
32,047
+15,820
+97% +$2.12M 0.1% 196
2022
Q1 		$2.36M Sell
16,227
-428
-3% -$82.2K 0.05% 288
2021
Q4 		$4.88M Buy
16,655
+7,300
+78% +$2.08M 0.08% 215
2021
Q3 		$2.53M Hold
9,355
– – 0.05% 298
2021
Q2 		$2.27M Hold
9,355
– – 0.04% 323
2021
Q1 		$2.15M Buy
9,355
+6,055
+183% +$1.52M 0.04% 345
2020
Q4 		$886K Hold
3,300
– – 0.02% 460
2020
Q3 		$779K Hold
3,300
– – 0.02% 445
2020
Q2 		$752K Hold
3,300
– – 0.02% 438
2020
Q1 		$584K Hold
3,300
– – 0.02% 429
2019
Q4 		$522K Hold
3,300
– – 0.01% 488
2019
Q3 		$491K Buy
3,300
+800
+32% +$122K 0.01% 531
2019
Q2 		$372K Hold
2,500
– – 0.01% 530
2019
Q1 		$346K Hold
2,500
– – 0.01% 528
2018
Q4 		$268K Hold
2,500
– – 0.01% 537
2018
Q3 		$311K Buy
+2,500
New +$277K 0.01% 561

Other funds holding MASI

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $315B AUM 27.84% 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 $3.37T AUM 44.26% 1-Year Est. Return

South Dakota Investment Council's MASI Position: Q1 2026 in Review

South Dakota Investment Council reduced its Masimo (MASI) stake by 17% in Q1 2026, selling an estimated $581K and leaving 17,568 shares worth $3.13M. The position accounts for 0.06% of the portfolio, ranked #241.

South Dakota Investment Council first reported a position in MASI in Q3 2018 and has held it in 31 quarters since. The position peaked at $5.91M in Q1 2023. 446 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • South Dakota Investment Council held 17,568 shares of Masimo worth $3.13M as of Q1 2026.
  • South Dakota Investment Council sold 3,700 Masimo shares in Q1 2026, an estimated $581K.
  • Masimo made up 0.06% of South Dakota Investment Council's portfolio in Q1 2026, its #241 holding.
  • South Dakota Investment Council first reported a position in Masimo in Q3 2018 and has held it in 31 quarters since.
  • South Dakota Investment Council's Masimo position peaked at $5.91M in Q1 2023.
  • 446 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on South Dakota Investment Council's 13F filing for Q1 2026, filed 18 May 2026.