Bank of America
MASI

Bank of America’s Masimo MASI Stock Holding History

Bank of America’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 		$41.3M Sell
232,003
-52,699
-19% -$8.27M ﹤0.01% 1743
2025
Q4 		$37M Sell
284,702
-120,359
-30% -$17.2M ﹤0.01% 1769
2025
Q3 		$59.8M Buy
405,061
+214,885
+113% +$32.5M ﹤0.01% 1583
2025
Q2 		$32M Sell
190,176
-126,467
-40% -$20.2M ﹤0.01% 2088
2025
Q1 		$52.8M Buy
316,643
+209,340
+195% +$36.3M ﹤0.01% 1532
2024
Q4 		$17.7M Sell
107,303
-10,542
-9% -$1.66M ﹤0.01% 2415
2024
Q3 		$15.7M Buy
117,845
+2,816
+2% +$327K ﹤0.01% 2627
2024
Q2 		$14.5M Sell
115,029
-15,261
-12% -$2.01M ﹤0.01% 2559
2024
Q1 		$19.1M Buy
130,290
+110,661
+564% +$14.3M ﹤0.01% 2333
2023
Q4 		$2.3M Sell
19,629
-12,632
-39% -$1.18M ﹤0.01% 4267
2023
Q3 		$2.83M Buy
32,261
+13,086
+68% +$1.52M ﹤0.01% 3933
2023
Q2 		$3.16M Sell
19,175
-44,158
-70% -$7.69M ﹤0.01% 3813
2023
Q1 		$11.7M Buy
63,333
+39,910
+170% +$6.73M ﹤0.01% 2665
2022
Q4 		$3.47M Buy
23,423
+1,021
+5% +$140K ﹤0.01% 3754
2022
Q3 		$3.16M Sell
22,402
-29,687
-57% -$4.34M ﹤0.01% 3846
2022
Q2 		$6.81M Sell
52,089
-26,314
-34% -$3.52M ﹤0.01% 3067
2022
Q1 		$11.4M Sell
78,403
-72,712
-48% -$14M ﹤0.01% 2732
2021
Q4 		$44.2M Sell
151,115
-43,033
-22% -$12.3M ﹤0.01% 1491
2021
Q3 		$52.6M Buy
194,148
+9,590
+5% +$2.6M 0.01% 1317
2021
Q2 		$44.7M Buy
184,558
+88
+0% +$20.1K ﹤0.01% 1442
2021
Q1 		$42.4M Sell
184,470
-16,506
-8% -$4.15M ﹤0.01% 1410
2020
Q4 		$53.9M Buy
200,976
+6,750
+3% +$1.68M 0.01% 1126
2020
Q3 		$45.8M Sell
194,226
-52,470
-21% -$11.8M 0.01% 1134
2020
Q2 		$56.2M Buy
246,696
+73,254
+42% +$16.1M 0.01% 966
2020
Q1 		$30.7M Buy
173,442
+30,739
+22% +$5.27M 0.01% 1225
2019
Q4 		$22.6M Sell
142,703
-50,232
-26% -$7.55M ﹤0.01% 1782
2019
Q3 		$28.7M Buy
192,935
+21,756
+13% +$3.3M ﹤0.01% 1523
2019
Q2 		$25.5M Buy
171,179
+13,073
+8% +$1.79M ﹤0.01% 1653
2019
Q1 		$21.9M Buy
158,106
+45,424
+40% +$5.7M ﹤0.01% 1741
2018
Q4 		$12.1M Sell
112,682
-143,717
-56% -$16M ﹤0.01% 2110
2018
Q3 		$31.9M Buy
256,399
+88,993
+53% +$9.87M 0.01% 1444
2018
Q2 		$16.3M Buy
167,406
+24,271
+17% +$2.31M ﹤0.01% 1995
2018
Q1 		$12.6M Sell
143,135
-24,983
-15% -$2.18M ﹤0.01% 2188
2017
Q4 		$14.3M Sell
168,118
-171,873
-51% -$14.9M ﹤0.01% 2118
2017
Q3 		$29.4M Buy
339,991
+82,917
+32% +$7.33M ﹤0.01% 1550
2017
Q2 		$23.4M Sell
257,074
-49,526
-16% -$4.55M ﹤0.01% 1593
2017
Q1 		$28.6M Buy
306,600
+40,399
+15% +$3.33M 0.01% 1451
2016
Q4 		$17.9M Sell
266,201
-39,009
-13% -$2.4M ﹤0.01% 1765
2016
Q3 		$18.2M Buy
305,210
+33,380
+12% +$1.88M ﹤0.01% 1719
2016
Q2 		$14.3M Sell
271,830
-36,193
-12% -$1.7M ﹤0.01% 1864
2016
Q1 		$12.9M Sell
308,023
-2,468
-0.8% -$92.8K ﹤0.01% 1934
2015
Q4 		$12.9M Sell
310,491
-53,365
-15% -$2.18M ﹤0.01% 2029
2015
Q3 		$14M Buy
363,856
+247,634
+213% +$10.1M ﹤0.01% 1907
2015
Q2 		$4.5M Buy
116,222
+48,878
+73% +$1.75M ﹤0.01% 2685
2015
Q1 		$2.22M Sell
67,344
-33,892
-33% -$974K ﹤0.01% 3154
2014
Q4 		$2.67M Buy
101,236
+5,299
+6% +$131K ﹤0.01% 3104
2014
Q3 		$2.04M Buy
95,937
+18,358
+24% +$419K ﹤0.01% 3367
2014
Q2 		$1.83M Buy
77,579
+24,482
+46% +$607K ﹤0.01% 3449
2014
Q1 		$1.45M Sell
53,097
-1,892
-3% -$54K ﹤0.01% 3519
2013
Q4 		$1.61M Buy
54,989
+8,056
+17% +$225K ﹤0.01% 3547
2013
Q3 		$1.25M Sell
46,933
-28,332
-38% -$699K ﹤0.01% 3726
2013
Q2 		$1.6M Buy
+75,265
New +$1.58M ﹤0.01% 3477

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 $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 $2.9T AUM 29.55% 1-Year Est. Return

Bank of America's MASI Position: Q1 2026 in Review

Bank of America reduced its Masimo (MASI) stake by 19% in Q1 2026, selling an estimated $8.27M and leaving 232,003 shares worth $41.3M. The position accounts for ﹤0.01% of the portfolio, ranked #1743.

Bank of America first reported a position in MASI in Q2 2013 and has held it in 52 quarters since. The position peaked at $59.8M in Q3 2025. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Bank of America held 232,003 shares of Masimo worth $41.3M as of Q1 2026.
  • Bank of America sold 52,699 Masimo shares in Q1 2026, an estimated $8.27M.
  • Masimo made up ﹤0.01% of Bank of America's portfolio in Q1 2026, its #1743 holding.
  • Bank of America first reported a position in Masimo in Q2 2013 and has held it in 52 quarters since.
  • Bank of America's Masimo position peaked at $59.8M in Q3 2025.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Bank of America's 13F filing for Q1 2026, filed 18 May 2026.