HI
MASI

Horizon Investments’s Masimo MASI Stock Holding History

Horizon Investments’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 		$1.07K Buy
+6
New +$942 ﹤0.01% 1308
2015
Q3 		– Sell
-5,507
Closed -$213K – 116
2015
Q2 		$213K Sell
5,507
-1,040
-16% -$37.3K 0.02% 77
2015
Q1 		$216K Buy
+6,547
New +$188K 0.02% 85

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

Horizon Investments's MASI Position: Q1 2026 in Review

Horizon Investments opened a new position in Masimo (MASI) in Q1 2026: 6 shares worth $1.07K. The stake represents ﹤0.01% of the portfolio and ranks #1308 among its holdings. This is a return to the name: Horizon Investments previously reported a position in MASI as recently as Q2 2015.

Horizon Investments first reported a position in MASI in Q1 2015 and has held it in 3 quarters since. The position peaked at $216K in Q1 2015. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Horizon Investments held 6 shares of Masimo worth $1.07K as of Q1 2026.
  • Masimo was a new Horizon Investments position in Q1 2026.
  • Masimo made up ﹤0.01% of Horizon Investments's portfolio in Q1 2026, its #1308 holding.
  • Horizon Investments first reported a position in Masimo in Q1 2015 and has held it in 3 quarters since.
  • Horizon Investments's Masimo position peaked at $216K in Q1 2015.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Horizon Investments's 13F filing for Q1 2026, filed 15 May 2026.