AssetMark Inc
MASI

AssetMark Inc’s Masimo MASI Stock Holding History

AssetMark Inc’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 		$368K Buy
2,068
+218
+12% +$34.2K ﹤0.01% 1221
2025
Q4 		$241K Buy
1,850
+97
+6% +$13.9K ﹤0.01% 1260
2025
Q3 		$259K Buy
1,753
+214
+14% +$32.4K ﹤0.01% 1210
2025
Q2 		$259K Buy
1,539
+73
+5% +$11.7K ﹤0.01% 1159
2025
Q1 		$244K Buy
1,466
+300
+26% +$52.1K ﹤0.01% 1097
2024
Q4 		$193K Sell
1,166
-17
-1% -$2.68K ﹤0.01% 1102
2024
Q3 		$158K Buy
1,183
+133
+13% +$15.4K ﹤0.01% 1062
2024
Q2 		$132K Buy
1,050
+125
+14% +$16.5K ﹤0.01% 1069
2024
Q1 		$136K Buy
925
+98
+12% +$12.7K ﹤0.01% 1015
2023
Q4 		$96.9K Sell
827
-174
-17% -$16.2K ﹤0.01% 1043
2023
Q3 		$87.8K Sell
1,001
-9,852
-91% -$1.15M ﹤0.01% 1006
2023
Q2 		$1.79M Buy
10,853
+578
+6% +$101K 0.01% 501
2023
Q1 		$1.9M Buy
10,275
+3,158
+44% +$533K 0.01% 466
2022
Q4 		$1.05M Buy
7,117
+87
+1% +$12K ﹤0.01% 564
2022
Q3 		$992K Sell
7,030
-3,178
-31% -$464K ﹤0.01% 514
2022
Q2 		$1.33M Buy
10,208
+1,023
+11% +$137K 0.01% 433
2022
Q1 		$1.34M Buy
9,185
+2,671
+41% +$513K 0.01% 415
2021
Q4 		$1.91M Buy
6,514
+6,009
+1,190% +$1.71M 0.01% 336
2021
Q3 		$137K Sell
505
-5,647
-92% -$1.53M ﹤0.01% 617
2021
Q2 		$1.49M Buy
6,152
+1,285
+26% +$293K 0.01% 346
2021
Q1 		$1.12M Buy
4,867
+300
+7% +$75.4K 0.01% 356
2020
Q4 		$1.23M Buy
4,567
+550
+14% +$137K 0.01% 336
2020
Q3 		$948K Buy
4,017
+1,709
+74% +$383K 0.01% 339
2020
Q2 		$526K Buy
2,308
+996
+76% +$219K ﹤0.01% 379
2020
Q1 		$232K Buy
1,312
+247
+23% +$42.4K ﹤0.01% 465
2019
Q4 		$168K Buy
1,065
+307
+41% +$46.1K ﹤0.01% 557
2019
Q3 		$113K Sell
758
-4
-0.5% -$608 ﹤0.01% 588
2019
Q2 		$113K Buy
762
+49
+7% +$6.72K ﹤0.01% 580
2019
Q1 		$99K Sell
713
-128
-15% -$16.1K ﹤0.01% 574
2018
Q4 		$90K Sell
841
-410
-33% -$45.7K ﹤0.01% 585
2018
Q3 		$156K Buy
1,251
+4
+0.3% +$444 ﹤0.01% 493
2018
Q2 		$122K Buy
1,247
+357
+40% +$33.9K ﹤0.01% 537
2018
Q1 		$78K Buy
890
+599
+206% +$52.2K ﹤0.01% 626
2017
Q4 		$25K Sell
291
-88,857
-100% -$7.71M ﹤0.01% 963
2017
Q3 		$7.72M Buy
89,148
+17,550
+25% +$1.55M 0.09% 178
2017
Q2 		$6.53M Buy
71,598
+27,207
+61% +$2.5M 0.08% 171
2017
Q1 		$4.14M Buy
44,391
+41,211
+1,296% +$3.39M 0.05% 194
2016
Q4 		$214K Sell
3,180
-102
-3% -$6.27K ﹤0.01% 401
2016
Q3 		$195K Buy
+3,282
New +$185K ﹤0.01% 396
2016
Q1 		– Sell
-16
Closed -$1K – 1316
2015
Q4 		$1K Buy
16
+12
+300% +$490 ﹤0.01% 1224
2015
Q3 		$0 Buy
+4
New +$163 ﹤0.01% 804

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

AssetMark Inc's MASI Position: Q1 2026 in Review

AssetMark Inc increased its Masimo (MASI) stake by 12% in Q1 2026, buying an estimated $34.2K and bringing the position to 2,068 shares worth $368K. The position accounts for ﹤0.01% of the portfolio, ranked #1221.

AssetMark Inc first reported a position in MASI in Q3 2015 and has held it in 41 quarters since. The position peaked at $7.72M in Q3 2017. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • AssetMark Inc held 2,068 shares of Masimo worth $368K as of Q1 2026.
  • AssetMark Inc bought 218 Masimo shares in Q1 2026, an estimated $34.2K.
  • Masimo made up ﹤0.01% of AssetMark Inc's portfolio in Q1 2026, its #1221 holding.
  • AssetMark Inc first reported a position in Masimo in Q3 2015 and has held it in 41 quarters since.
  • AssetMark Inc's Masimo position peaked at $7.72M in Q3 2017.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on AssetMark Inc's 13F filing for Q1 2026, filed 6 May 2026.