Sumitomo Mitsui Trust Group
MASI

Sumitomo Mitsui Trust Group’s Masimo MASI Stock Holding History

Sumitomo Mitsui Trust Group’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 		– Sell
-14,572
Closed -$1.9M – 1076
2025
Q4 		$1.9M Sell
14,572
-382,676
-96% -$54.8M ﹤0.01% 802
2025
Q3 		$58.6M Sell
397,248
-73,793
-16% -$11.2M 0.03% 430
2025
Q2 		$79.2M Buy
471,041
+98,063
+26% +$15.7M 0.05% 345
2025
Q1 		$62.1M Sell
372,978
-727
-0.2% -$126K 0.04% 384
2024
Q4 		$61.8M Buy
373,705
+1,522
+0.4% +$240K 0.04% 393
2024
Q3 		$49.6M Sell
372,183
-18,843
-5% -$2.19M 0.03% 454
2024
Q2 		$49.2M Sell
391,026
-863
-0.2% -$114K 0.04% 430
2024
Q1 		$57.5M Sell
391,889
-21,926
-5% -$2.83M 0.04% 440
2023
Q4 		$48.5M Buy
413,815
+8,498
+2% +$792K 0.04% 476
2023
Q3 		$35.5M Sell
405,317
-84,790
-17% -$9.87M 0.03% 549
2023
Q2 		$80.6M Sell
490,107
-2,839
-0.6% -$494K 0.06% 334
2023
Q1 		$91M Buy
492,946
+108,465
+28% +$18.3M 0.07% 317
2022
Q4 		$56.9M Buy
384,481
+1,784
+0.5% +$245K 0.05% 458
2022
Q3 		$54M Buy
382,697
+6,038
+2% +$882K 0.04% 462
2022
Q2 		$49.2M Buy
376,659
+3,352
+0.9% +$448K 0.04% 515
2022
Q1 		$54.3M Sell
373,307
-3,028
-0.8% -$581K 0.04% 513
2021
Q4 		$110M Buy
376,335
+12,161
+3% +$3.46M 0.07% 311
2021
Q3 		$98.6M Buy
364,174
+192,323
+112% +$52.1M 0.06% 341
2021
Q2 		$41.7M Sell
171,851
-11,035
-6% -$2.52M 0.02% 596
2021
Q1 		$42M Sell
182,886
-4,606
-2% -$1.16M 0.03% 589
2020
Q4 		$50.3M Sell
187,492
-3,639
-2% -$907K 0.03% 527
2020
Q3 		$45.1M Sell
191,131
-13,802
-7% -$3.09M 0.03% 520
2020
Q2 		$46.7M Buy
204,933
+202,179
+7,341% +$44.4M 0.03% 514
2020
Q1 		$488K Buy
2,754
+90
+3% +$15.4K ﹤0.01% 1002
2019
Q4 		$421K Buy
+2,664
New +$400K ﹤0.01% 1026

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

Sumitomo Mitsui Trust Group's MASI Position: Q1 2026 in Review

Sumitomo Mitsui Trust Group sold out of Masimo (MASI) in Q1 2026, closing a stake of 14,572 shares — an estimated $1.9M sold.

Sumitomo Mitsui Trust Group first reported a position in MASI in Q4 2019 and held it in 25 quarters. The position peaked at $110M in Q4 2021. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Sumitomo Mitsui Trust Group reported no remaining Masimo position as of Q1 2026 after selling out during the quarter.
  • Sumitomo Mitsui Trust Group sold 14,572 Masimo shares in Q1 2026, an estimated $1.9M.
  • Sumitomo Mitsui Trust Group first reported a position in Masimo in Q4 2019 and held it in 25 quarters.
  • Sumitomo Mitsui Trust Group's Masimo position peaked at $110M in Q4 2021.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Sumitomo Mitsui Trust Group's 13F filing for Q1 2026, filed 30 Apr 2026.