Ameriprise
MASI

Ameriprise’s Masimo MASI Stock Holding History

Ameriprise’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 		$11.6M Sell
65,203
-403,204
-86% -$63.3M ﹤0.01% 1815
2025
Q4 		$60.9M Buy
468,407
+7,456
+2% +$1.07M 0.01% 774
2025
Q3 		$68M Buy
460,951
+66,464
+17% +$10.1M 0.02% 731
2025
Q2 		$66.4M Buy
394,487
+182,701
+86% +$29.2M 0.02% 724
2025
Q1 		$35.3M Sell
211,786
-4,160
-2% -$722K 0.01% 1014
2024
Q4 		$35.7M Buy
215,946
+16,085
+8% +$2.54M 0.01% 1019
2024
Q3 		$26.6M Buy
199,861
+108,073
+118% +$12.5M 0.01% 1172
2024
Q2 		$11.6M Buy
91,788
+12,907
+16% +$1.7M ﹤0.01% 1622
2024
Q1 		$11.6M Sell
78,881
-3,914
-5% -$505K ﹤0.01% 1660
2023
Q4 		$9.7M Buy
82,795
+8,741
+12% +$815K ﹤0.01% 1802
2023
Q3 		$6.49M Sell
74,054
-30,936
-29% -$3.6M ﹤0.01% 2078
2023
Q2 		$17.3M Buy
104,990
+21,279
+25% +$3.7M 0.01% 1368
2023
Q1 		$15.4M Buy
83,711
+13,041
+18% +$2.2M 0.01% 1450
2022
Q4 		$10.5M Sell
70,670
-51,131
-42% -$7.04M ﹤0.01% 1702
2022
Q3 		$17.2M Sell
121,801
-9,835
-7% -$1.44M 0.01% 1278
2022
Q2 		$17.2M Buy
131,636
+54,934
+72% +$7.35M 0.01% 1317
2022
Q1 		$11.1M Sell
76,702
-323,623
-81% -$62.1M ﹤0.01% 1830
2021
Q4 		$117M Sell
400,325
-231,680
-37% -$66M 0.03% 512
2021
Q3 		$171M Sell
632,005
-28,625
-4% -$7.76M 0.05% 368
2021
Q2 		$160M Buy
660,630
+83,547
+14% +$19.1M 0.05% 382
2021
Q1 		$133M Sell
577,083
-92,304
-14% -$23.2M 0.04% 409
2020
Q4 		$180M Sell
669,387
-3,311
-0.5% -$826K 0.06% 314
2020
Q3 		$159M Sell
672,698
-42,608
-6% -$9.55M 0.06% 300
2020
Q2 		$163M Sell
715,306
-188,636
-21% -$41.4M 0.07% 277
2020
Q1 		$160M Buy
903,942
+191,583
+27% +$32.9M 0.08% 238
2019
Q4 		$113M Buy
712,359
+6,183
+0.9% +$929K 0.05% 380
2019
Q3 		$105M Sell
706,176
-41,658
-6% -$6.33M 0.05% 386
2019
Q2 		$111M Sell
747,834
-69,332
-8% -$9.51M 0.05% 383
2019
Q1 		$113M Sell
817,166
-82,195
-9% -$10.3M 0.05% 368
2018
Q4 		$96.6M Sell
899,361
-267,289
-23% -$29.8M 0.05% 380
2018
Q3 		$145M Sell
1,166,650
-311,564
-21% -$34.6M 0.05% 349
2018
Q2 		$144M Sell
1,478,214
-187,566
-11% -$17.8M 0.06% 308
2018
Q1 		$147M Buy
1,665,780
+1,392,917
+510% +$121M 0.07% 285
2017
Q4 		$23.1M Buy
272,863
+4,510
+2% +$391K 0.01% 976
2017
Q3 		$23.2M Buy
268,353
+1,930
+0.7% +$171K 0.01% 954
2017
Q2 		$24.3M Buy
266,423
+14,553
+6% +$1.34M 0.01% 893
2017
Q1 		$23.5M Sell
251,870
-171,964
-41% -$14.2M 0.01% 903
2016
Q4 		$28.6M Buy
423,834
+72,526
+21% +$4.46M 0.02% 771
2016
Q3 		$20.9M Buy
351,308
+7,244
+2% +$409K 0.01% 914
2016
Q2 		$18.1M Sell
344,064
-8,808
-2% -$415K 0.01% 973
2016
Q1 		$14.8M Sell
352,872
-27,467
-7% -$1.03M 0.01% 1130
2015
Q4 		$15.8M Sell
380,339
-46,832
-11% -$1.91M 0.01% 1093
2015
Q3 		$16.5M Sell
427,171
-37,032
-8% -$1.51M 0.01% 1069
2015
Q2 		$18M Sell
464,203
-70,509
-13% -$2.53M 0.01% 1092
2015
Q1 		$17.6M Sell
534,712
-42,307
-7% -$1.22M 0.01% 1085
2014
Q4 		$15.2M Sell
577,019
-114,641
-17% -$2.83M 0.01% 1146
2014
Q3 		$14.7M Buy
691,660
+44,361
+7% +$1.01M 0.01% 1159
2014
Q2 		$15.3M Buy
647,299
+302,254
+88% +$7.5M 0.01% 1226
2014
Q1 		$9.42M Buy
345,045
+226,655
+191% +$6.46M 0.01% 1573
2013
Q4 		$3.46M Sell
118,390
-1,045
-0.9% -$29.3K ﹤0.01% 2216
2013
Q3 		$3.18M Buy
119,435
+8,464
+8% +$209K ﹤0.01% 2224
2013
Q2 		$2.35M Buy
+110,971
New +$2.33M ﹤0.01% 2286

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

Ameriprise's MASI Position: Q1 2026 in Review

Ameriprise reduced its Masimo (MASI) stake by 86% in Q1 2026, selling an estimated $63.3M and leaving 65,203 shares worth $11.6M. The position accounts for ﹤0.01% of the portfolio, ranked #1815.

Ameriprise first reported a position in MASI in Q2 2013 and has held it in 52 quarters since. The position peaked at $180M in Q4 2020. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Ameriprise held 65,203 shares of Masimo worth $11.6M as of Q1 2026.
  • Ameriprise sold 403,204 Masimo shares in Q1 2026, an estimated $63.3M.
  • Masimo made up ﹤0.01% of Ameriprise's portfolio in Q1 2026, its #1815 holding.
  • Ameriprise first reported a position in Masimo in Q2 2013 and has held it in 52 quarters since.
  • Ameriprise's Masimo position peaked at $180M in Q4 2020.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Ameriprise's 13F filing for Q1 2026, filed 15 May 2026.