CIP
MASI

Champlain Investment Partners’s Masimo MASI Stock Holding History

Champlain Investment Partners’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 		$25.1M Buy
+141,284
New +$22.2M 0.32% 101
2022
Q4 		– Sell
-934,762
Closed -$132M – 134
2022
Q3 		$132M Sell
934,762
-16,980
-2% -$2.48M 0.9% 41
2022
Q2 		$124M Sell
951,742
-23,805
-2% -$3.18M 0.8% 52
2022
Q1 		$142M Buy
975,547
+5,860
+0.6% +$1.13M 0.74% 57
2021
Q4 		$284M Sell
969,687
-118,832
-11% -$33.8M 1.29% 19
2021
Q3 		$295M Sell
1,088,519
-24,888
-2% -$6.75M 1.41% 16
2021
Q2 		$270M Buy
1,113,407
+141,445
+15% +$32.3M 1.28% 19
2021
Q1 		$223M Buy
971,962
+134,660
+16% +$33.8M 1.16% 26
2020
Q4 		$225M Buy
837,302
+108,312
+15% +$27M 1.29% 25
2020
Q3 		$172M Buy
728,990
+19,090
+3% +$4.28M 1.17% 35
2020
Q2 		$162M Sell
709,900
-63,450
-8% -$13.9M 1.16% 33
2020
Q1 		$137M Sell
773,350
-292,345
-27% -$50.1M 1.23% 32
2019
Q4 		$168M Buy
1,065,695
+144,815
+16% +$21.8M 1.23% 31
2019
Q3 		$137M Buy
920,880
+97,655
+12% +$14.8M 1.13% 32
2019
Q2 		$123M Buy
823,225
+27,505
+3% +$3.77M 1.03% 40
2019
Q1 		$110M Sell
795,720
-2,930
-0.4% -$368K 0.96% 47
2018
Q4 		$85.8M Buy
798,650
+91,630
+13% +$10.2M 0.87% 51
2018
Q3 		$88.1M Sell
707,020
-1,840
-0.3% -$204K 0.78% 60
2018
Q2 		$69.2M Buy
708,860
+16,080
+2% +$1.53M 0.67% 69
2018
Q1 		$60.9M Buy
692,780
+494,180
+249% +$43.1M 0.66% 67
2017
Q4 		$16.8M Buy
+198,600
New +$17.2M 0.19% 110
2017
Q2 		– Sell
-293,215
Closed -$27.3M – 120
2017
Q1 		$27.3M Sell
293,215
-532,515
-64% -$43.8M 0.36% 97
2016
Q4 		$55.7M Sell
825,730
-13,395
-2% -$823K 0.77% 51
2016
Q3 		$49.9M Sell
839,125
-104,740
-11% -$5.91M 0.76% 53
2016
Q2 		$49.6M Sell
943,865
-12,785
-1% -$602K 0.85% 44
2016
Q1 		$40M Sell
956,650
-275,910
-22% -$10.4M 0.73% 57
2015
Q4 		$51.2M Sell
1,232,560
-38,309
-3% -$1.57M 0.87% 42
2015
Q3 		$49M Buy
1,270,869
+7,769
+0.6% +$317K 0.86% 44
2015
Q2 		$48.9M Sell
1,263,100
-43,730
-3% -$1.57M 0.77% 54
2015
Q1 		$43.1M Sell
1,306,830
-30,850
-2% -$887K 0.74% 58
2014
Q4 		$35.2M Sell
1,337,680
-456,345
-25% -$11.3M 0.56% 84
2014
Q3 		$38.2M Sell
1,794,025
-32,390
-2% -$739K 0.66% 67
2014
Q2 		$43.1M Sell
1,826,415
-446,160
-20% -$11.1M 0.71% 65
2014
Q1 		$62.1M Buy
2,272,575
+153,305
+7% +$4.37M 1.07% 25
2013
Q4 		$61.9M Sell
2,119,270
-43,745
-2% -$1.22M 1.09% 24
2013
Q3 		$57.6M Sell
2,163,015
-5,585
-0.3% -$138K 1.09% 30
2013
Q2 		$46M Buy
+2,168,600
New +$45.6M 0.93% 39

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

Champlain Investment Partners's MASI Position: Q1 2026 in Review

Champlain Investment Partners opened a new position in Masimo (MASI) in Q1 2026: 141,284 shares worth $25.1M. The stake represents 0.32% of the portfolio and ranks #101 among its holdings. This is a return to the name: Champlain Investment Partners previously reported a position in MASI as recently as Q3 2022.

Champlain Investment Partners first reported a position in MASI in Q2 2013 and has held it in 37 quarters since. The position peaked at $295M in Q3 2021. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Champlain Investment Partners held 141,284 shares of Masimo worth $25.1M as of Q1 2026.
  • Masimo was a new Champlain Investment Partners position in Q1 2026.
  • Masimo made up 0.32% of Champlain Investment Partners's portfolio in Q1 2026, its #101 holding.
  • Champlain Investment Partners first reported a position in Masimo in Q2 2013 and has held it in 37 quarters since.
  • Champlain Investment Partners's Masimo position peaked at $295M in Q3 2021.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Champlain Investment Partners's 13F filing for Q1 2026, filed 13 May 2026.