NMIMC
MASI

Northwestern Mutual Investment Management Company’s Masimo MASI Stock Holding History

Northwestern Mutual Investment Management Company’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
Q2 		– Sell
-10,228
Closed -$1.82M – 893
2026
Q1 		$1.82M Buy
10,228
+13
+0.1% +$2.04K 0.03% 334
2025
Q4 		$1.33M Sell
10,215
-78
-0.8% -$11.2K 0.02% 460
2025
Q3 		$1.52M Buy
10,293
+246
+2% +$37.2K 0.02% 396
2025
Q2 		$1.69M Buy
10,047
+166
+2% +$26.5K 0.03% 330
2025
Q1 		$1.65M Buy
9,881
+5
+0.1% +$868 0.03% 325
2024
Q4 		$1.63M Buy
9,876
+80
+0.8% +$12.6K 0.04% 345
2024
Q3 		$1.31M Sell
9,796
-156
-2% -$18.1K 0.03% 439
2024
Q2 		$1.25M Buy
9,952
+52
+0.5% +$6.85K 0.03% 430
2024
Q1 		$1.45M Buy
9,900
+25
+0.3% +$3.23K 0.04% 368
2023
Q4 		$1.16M Buy
9,875
+35
+0.4% +$3.26K 0.03% 446
2023
Q3 		$863K Sell
9,840
-951
-9% -$111K 0.02% 523
2023
Q2 		$1.78M Buy
10,791
+61
+0.6% +$10.6K 0.05% 208
2023
Q1 		$1.98M Buy
10,730
+6,255
+140% +$1.06M 0.05% 158
2022
Q4 		$662K Sell
4,475
-2,505
-36% -$345K 0.02% 377
2022
Q3 		$985K Sell
6,980
-1,567
-18% -$229K 0.02% 318
2022
Q2 		$1.12M Buy
8,547
+109
+1% +$14.6K 0.03% 321
2022
Q1 		$1.23M Buy
8,438
+16
+0.2% +$3.07K 0.03% 368
2021
Q4 		$2.47M Buy
8,422
+55
+0.7% +$15.7K 0.05% 175
2021
Q3 		$2.27M Sell
8,367
-60
-0.7% -$16.3K 0.05% 176
2021
Q2 		$2.04M Sell
8,427
-54
-0.6% -$12.3K 0.04% 190
2021
Q1 		$1.95M Sell
8,481
-8,935
-51% -$2.24M 0.03% 188
2020
Q4 		$4.67M Buy
17,416
+93
+0.5% +$23.2K 0.06% 112
2020
Q3 		$3.95M Hold
17,323
– – 0.05% 111
2020
Q2 		$3.95M Buy
17,323
+275
+2% +$60.4K 0.05% 108
2020
Q1 		$3.02M Buy
17,048
+3,036
+22% +$521K 0.05% 128
2019
Q4 		$2.21M Buy
14,012
+23
+0.2% +$3.46K 0.04% 191
2019
Q3 		$2.08M Sell
13,989
-11
-0.1% -$1.67K 0.05% 184
2019
Q2 		$2.08M Buy
14,000
+5,297
+61% +$727K 0.05% 184
2019
Q1 		$1.2M Sell
8,703
-513
-6% -$64.4K 0.02% 523
2018
Q4 		$990K Buy
9,216
+169
+2% +$18.8K 0.02% 569
2018
Q3 		$1.13M Sell
9,047
-317
-3% -$35.2K 0.02% 588
2018
Q2 		$914K Sell
9,364
-356
-4% -$33.8K 0.01% 673
2018
Q1 		$855K Buy
9,720
+3,494
+56% +$305K 0.01% 690
2017
Q4 		$528K Sell
6,226
-25
-0.4% -$2.17K 0.01% 691
2017
Q3 		$541K Sell
6,251
-1,584
-20% -$140K 0.01% 675
2017
Q2 		$714K Buy
7,835
+102
+1% +$9.37K 0.01% 661
2017
Q1 		$721K Buy
+7,733
New +$637K 0.01% 662

Other funds holding MASI

IA
IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

Northwestern Mutual Investment Management Company's MASI Position: Q2 2026 in Review

Northwestern Mutual Investment Management Company sold out of Masimo (MASI) in Q2 2026, closing a stake of 10,228 shares — an estimated $1.82M sold.

Northwestern Mutual Investment Management Company first reported a position in MASI in Q1 2017 and held it in 37 quarters. The position peaked at $4.67M in Q4 2020. 1 fund tracked by Wall St. Rank holds MASI as of Q2 2026.

  • Northwestern Mutual Investment Management Company reported no remaining Masimo position as of Q2 2026 after selling out during the quarter.
  • Northwestern Mutual Investment Management Company sold 10,228 Masimo shares in Q2 2026, an estimated $1.82M.
  • Northwestern Mutual Investment Management Company first reported a position in Masimo in Q1 2017 and held it in 37 quarters.
  • Northwestern Mutual Investment Management Company's Masimo position peaked at $4.67M in Q4 2020.
  • 1 fund tracked by Wall St. Rank held Masimo as of Q2 2026.

Based on Northwestern Mutual Investment Management Company's 13F filing for Q2 2026, filed 12 Aug 2026.