Citigroup
MASI

Citigroup’s Masimo MASI Stock Holding History

Citigroup’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 		$94.9M Buy
533,388
+412,157
+340% +$64.7M 0.04% 423
2025
Q4 		$15.8M Buy
121,231
+4,559
+4% +$653K 0.01% 1240
2025
Q3 		$17.2M Buy
116,672
+66,710
+134% +$10.1M 0.01% 1163
2025
Q2 		$8.4M Sell
49,962
-2,196
-4% -$351K ﹤0.01% 1491
2025
Q1 		$8.69M Sell
52,158
-39,533
-43% -$6.86M ﹤0.01% 1461
2024
Q4 		$15.2M Buy
91,691
+29,603
+48% +$4.67M 0.01% 1129
2024
Q3 		$8.28M Buy
62,088
+17,368
+39% +$2.02M ﹤0.01% 1448
2024
Q2 		$5.63M Sell
44,720
-11,203
-20% -$1.48M ﹤0.01% 1551
2024
Q1 		$8.21M Buy
55,923
+3,309
+6% +$427K 0.01% 1368
2023
Q4 		$6.17M Sell
52,614
-969
-2% -$90.3K ﹤0.01% 1463
2023
Q3 		$4.7M Sell
53,583
-11,324
-17% -$1.32M ﹤0.01% 1467
2023
Q2 		$10.7M Sell
64,907
-56,230
-46% -$9.79M 0.01% 1111
2023
Q1 		$22.4M Buy
121,137
+1,986
+2% +$335K 0.02% 784
2022
Q4 		$17.6M Sell
119,151
-504,700
-81% -$69.4M 0.01% 860
2022
Q3 		$88.1M Buy
623,851
+68,808
+12% +$10.1M 0.06% 241
2022
Q2 		$72.5M Buy
555,043
+3,108
+0.6% +$416K 0.05% 283
2022
Q1 		$80.3M Buy
551,935
+259,865
+89% +$49.9M 0.05% 334
2021
Q4 		$85.5M Sell
292,070
-918
-0.3% -$261K 0.05% 362
2021
Q3 		$79.3M Sell
292,988
-120,263
-29% -$32.6M 0.05% 352
2021
Q2 		$100M Buy
413,251
+100,794
+32% +$23M 0.06% 296
2021
Q1 		$71.8M Buy
312,457
+14,912
+5% +$3.75M 0.05% 356
2020
Q4 		$79.9M Buy
297,545
+15,399
+5% +$3.84M 0.05% 346
2020
Q3 		$66.6M Sell
282,146
-85,382
-23% -$19.1M 0.04% 349
2020
Q2 		$83.8M Sell
367,528
-96,709
-21% -$21.2M 0.07% 259
2020
Q1 		$82.2M Sell
464,237
-1,071,516
-70% -$184M 0.07% 225
2019
Q4 		$243M Buy
1,535,753
+956,488
+165% +$144M 0.18% 105
2019
Q3 		$86.2M Buy
579,265
+24,471
+4% +$3.72M 0.07% 278
2019
Q2 		$82.6M Buy
554,794
+99,723
+22% +$13.7M 0.07% 281
2019
Q1 		$62.9M Sell
455,071
-77,919
-15% -$9.78M 0.06% 315
2018
Q4 		$57.2M Buy
532,990
+17,086
+3% +$1.91M 0.06% 352
2018
Q3 		$64.3M Buy
515,904
+58,232
+13% +$6.46M 0.06% 307
2018
Q2 		$44.7M Sell
457,672
-6,640
-1% -$631K 0.04% 403
2018
Q1 		$40.8M Buy
464,312
+445,240
+2,335% +$38.8M 0.03% 462
2017
Q4 		$1.62M Sell
19,072
-27,627
-59% -$2.4M ﹤0.01% 2882
2017
Q3 		$4.04M Buy
46,699
+19,684
+73% +$1.74M ﹤0.01% 1960
2017
Q2 		$2.46M Buy
27,015
+18,525
+218% +$1.7M ﹤0.01% 2382
2017
Q1 		$791K Sell
8,490
-103,840
-92% -$8.55M ﹤0.01% 3457
2016
Q4 		$7.57M Buy
112,330
+81,794
+268% +$5.03M 0.01% 1428
2016
Q3 		$1.82M Buy
30,536
+9,115
+43% +$514K ﹤0.01% 2610
2016
Q2 		$1.13M Sell
21,421
-9,908
-32% -$467K ﹤0.01% 2843
2016
Q1 		$1.31M Buy
31,329
+30,966
+8,531% +$1.16M ﹤0.01% 3010
2015
Q4 		$15K Buy
363
+257
+242% +$10.5K ﹤0.01% 6621
2015
Q3 		$4K Sell
106
-561
-84% -$22.9K ﹤0.01% 6824
2015
Q2 		$26K Sell
667
-887
-57% -$31.8K ﹤0.01% 5957
2015
Q1 		$51K Buy
1,554
+1,249
+410% +$35.9K ﹤0.01% 5527
2014
Q4 		$8K Sell
305
-78,749
-100% -$1.94M ﹤0.01% 6549
2014
Q3 		$1.68M Buy
79,054
+76,183
+2,654% +$1.74M ﹤0.01% 2672
2014
Q2 		$68K Sell
2,871
-1,151
-29% -$28.5K ﹤0.01% 4943
2014
Q1 		$109K Sell
4,022
-32,869
-89% -$937K ﹤0.01% 4912
2013
Q4 		$1.08M Buy
36,891
+5,294
+17% +$148K ﹤0.01% 3109
2013
Q3 		$842K Sell
31,597
-13,043
-29% -$322K ﹤0.01% 3027
2013
Q2 		$947K Buy
+44,640
New +$939K ﹤0.01% 2938

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

Citigroup's MASI Position: Q1 2026 in Review

Citigroup increased its Masimo (MASI) stake by 340% in Q1 2026, buying an estimated $64.7M and bringing the position to 533,388 shares worth $94.9M. The position accounts for 0.04% of the portfolio, ranked #423.

Citigroup first reported a position in MASI in Q2 2013 and has held it in 52 quarters since. The position peaked at $243M in Q4 2019. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Citigroup held 533,388 shares of Masimo worth $94.9M as of Q1 2026.
  • Citigroup bought 412,157 Masimo shares in Q1 2026, an estimated $64.7M.
  • Masimo made up 0.04% of Citigroup's portfolio in Q1 2026, its #423 holding.
  • Citigroup first reported a position in Masimo in Q2 2013 and has held it in 52 quarters since.
  • Citigroup's Masimo position peaked at $243M in Q4 2019.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Citigroup's 13F filing for Q1 2026, filed 11 May 2026.