Northern Trust’s Masimo MASI Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $69.4M | Buy |
390,437
+9,973
| +3% | +$1.57M | 0.01% | 921 |
|
|
2025
Q4 | $49.5M | Sell |
380,464
-11,678
| -3% | -$1.67M | 0.01% | 1110 |
|
|
2025
Q3 | $57.9M | Buy |
392,142
+3,600
| +0.9% | +$545K | 0.01% | 1044 |
|
|
2025
Q2 | $65.4M | Buy |
388,542
+5,186
| +1% | +$828K | 0.01% | 930 |
|
|
2025
Q1 | $63.9M | Sell |
383,356
-513
| -0.1% | -$89K | 0.01% | 942 |
|
|
2024
Q4 | $63.5M | Buy |
383,869
+82,828
| +28% | +$13.1M | 0.01% | 987 |
|
|
2024
Q3 | $40.1M | Sell |
301,041
-16,262
| -5% | -$1.89M | 0.01% | 1175 |
|
|
2024
Q2 | $40M | Buy |
317,303
+39,852
| +14% | +$5.25M | 0.01% | 1137 |
|
|
2024
Q1 | $40.7M | Sell |
277,451
-69,902
| -20% | -$9.03M | 0.01% | 1124 |
|
|
2023
Q4 | $40.7M | Buy |
347,353
+13,577
| +4% | +$1.27M | 0.01% | 1151 |
|
|
2023
Q3 | $29.3M | Sell |
333,776
-83,768
| -20% | -$9.75M | 0.01% | 1295 |
|
|
2023
Q2 | $68.7M | Sell |
417,544
-45,190
| -10% | -$7.87M | 0.01% | 763 |
|
|
2023
Q1 | $85.4M | Buy |
462,734
+1,098
| +0.2% | +$185K | 0.02% | 654 |
|
|
2022
Q4 | $68.3M | Sell |
461,636
-6,192
| -1% | -$852K | 0.01% | 735 |
|
|
2022
Q3 | $66M | Sell |
467,828
-35,694
| -7% | -$5.21M | 0.02% | 712 |
|
|
2022
Q2 | $65.8M | Sell |
503,522
-51,338
| -9% | -$6.87M | 0.01% | 726 |
|
|
2022
Q1 | $80.8M | Sell |
554,860
-4,821
| -0.9% | -$926K | 0.01% | 729 |
|
|
2021
Q4 | $164M | Sell |
559,681
-8,110
| -1% | -$2.31M | 0.03% | 513 |
|
|
2021
Q3 | $154M | Buy |
567,791
+36,369
| +7% | +$9.86M | 0.03% | 518 |
|
|
2021
Q2 | $129M | Sell |
531,422
-2,988
| -0.6% | -$682K | 0.02% | 572 |
|
|
2021
Q1 | $123M | Buy |
534,410
+32,846
| +7% | +$8.25M | 0.02% | 596 |
|
|
2020
Q4 | $135M | Sell |
501,564
-1,916
| -0.4% | -$478K | 0.03% | 524 |
|
|
2020
Q3 | $119M | Sell |
503,480
-20,329
| -4% | -$4.56M | 0.03% | 506 |
|
|
2020
Q2 | $119M | Buy |
523,809
+123,342
| +31% | +$27.1M | 0.03% | 482 |
|
|
2020
Q1 | $70.9M | Buy |
400,467
+12,676
| +3% | +$2.17M | 0.02% | 601 |
|
|
2019
Q4 | $61.3M | Buy |
387,791
+6,651
| +2% | +$1,000K | 0.01% | 869 |
|
|
2019
Q3 | $56.7M | Sell |
381,140
-6,827
| -2% | -$1.04M | 0.01% | 880 |
|
|
2019
Q2 | $57.7M | Buy |
387,967
+1,930
| +0.5% | +$265K | 0.01% | 893 |
|
|
2019
Q1 | $53.4M | Buy |
386,037
+10,199
| +3% | +$1.28M | 0.01% | 913 |
|
|
2018
Q4 | $40.4M | Buy |
375,838
+2,444
| +0.7% | +$273K | 0.01% | 1030 |
|
|
2018
Q3 | $46.5M | Sell |
373,394
-2,529
| -0.7% | -$281K | 0.01% | 1081 |
|
|
2018
Q2 | $36.7M | Sell |
375,923
-354,455
| -49% | -$33.7M | 0.01% | 1286 |
|
|
2018
Q1 | $64.2M | Sell |
730,378
-4,577
| -0.6% | -$399K | 0.02% | 799 |
|
|
2017
Q4 | $62.3M | Sell |
734,955
-29,660
| -4% | -$2.57M | 0.02% | 814 |
|
|
2017
Q3 | $66.2M | Sell |
764,615
-4,152
| -0.5% | -$367K | 0.02% | 759 |
|
|
2017
Q2 | $70.1M | Buy |
768,767
+51,945
| +7% | +$4.77M | 0.02% | 705 |
|
|
2017
Q1 | $66.8M | Buy |
716,822
+162,053
| +29% | +$13.3M | 0.02% | 728 |
|
|
2016
Q4 | $37.4M | Buy |
554,769
+9,757
| +2% | +$600K | 0.01% | 1110 |
|
|
2016
Q3 | $32.4M | Buy |
545,012
+2,782
| +0.5% | +$157K | 0.01% | 1179 |
|
|
2016
Q2 | $28.5M | Sell |
542,230
-24,033
| -4% | -$1.13M | 0.01% | 1225 |
|
|
2016
Q1 | $23.7M | Buy |
566,263
+2,724
| +0.5% | +$102K | 0.01% | 1365 |
|
|
2015
Q4 | $23.4M | Buy |
563,539
+13,328
| +2% | +$545K | 0.01% | 1389 |
|
|
2015
Q3 | $21.2M | Sell |
550,211
-32,203
| -6% | -$1.32M | 0.01% | 1454 |
|
|
2015
Q2 | $22.6M | Buy |
582,414
+13,855
| +2% | +$496K | 0.01% | 1489 |
|
|
2015
Q1 | $18.8M | Buy |
568,559
+5,683
| +1% | +$163K | 0.01% | 1634 |
|
|
2014
Q4 | $14.8M | Sell |
562,876
-59,334
| -10% | -$1.46M | ﹤0.01% | 1765 |
|
|
2014
Q3 | $13.2M | Sell |
622,210
-31,531
| -5% | -$720K | ﹤0.01% | 1827 |
|
|
2014
Q2 | $15.4M | Sell |
653,741
-234,881
| -26% | -$5.83M | ﹤0.01% | 1726 |
|
|
2014
Q1 | $24.3M | Sell |
888,622
-35,012
| -4% | -$999K | 0.01% | 1411 |
|
|
2013
Q4 | $27M | Buy |
923,634
+13,948
| +2% | +$390K | 0.01% | 1272 |
|
|
2013
Q3 | $24.2M | Sell |
909,686
-33,300
| -4% | -$821K | 0.01% | 1298 |
|
|
2013
Q2 | $20M | Buy |
+942,986
| New | +$19.8M | 0.01% | 1384 |
|
Other funds holding MASI
PCM
PCM
HI
VCM
VPM
Northern Trust's MASI Position: Q1 2026 in Review
Northern Trust increased its Masimo (MASI) stake by 2.6% in Q1 2026, buying an estimated $1.57M and bringing the position to 390,437 shares worth $69.4M. The position accounts for 0.01% of the portfolio, ranked #921.
Northern Trust first reported a position in MASI in Q2 2013 and has held it in 52 quarters since. The position peaked at $164M in Q4 2021. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.
- Northern Trust held 390,437 shares of Masimo worth $69.4M as of Q1 2026.
- Northern Trust bought 9,973 Masimo shares in Q1 2026, an estimated $1.57M.
- Masimo made up 0.01% of Northern Trust's portfolio in Q1 2026, its #921 holding.
- Northern Trust first reported a position in Masimo in Q2 2013 and has held it in 52 quarters since.
- Northern Trust's Masimo position peaked at $164M in Q4 2021.
- 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.
Based on Northern Trust's 13F filing for Q1 2026, filed 14 May 2026.