BHCM
MASI

Brevan Howard Capital Management’s Masimo MASI Stock Holding History

Brevan Howard Capital Management’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 		$1.89M Buy
+10,628
New +$1.67M 0.02% 585
2025
Q4 		– Sell
-2,893
Closed -$427K – 2092
2025
Q3 		$427K Sell
2,893
-593
-17% -$89.8K ﹤0.01% 1370
2025
Q2 		$586K Sell
3,486
-12,533
-78% -$2M ﹤0.01% 1282
2025
Q1 		$2.67M Buy
+16,019
New +$2.78M 0.03% 243
2024
Q4 		– Sell
-15,456
Closed -$2.06M – 1274
2024
Q3 		$2.06M Buy
15,456
+11,407
+282% +$1.32M 0.01% 268
2024
Q2 		$510K Buy
+4,049
New +$533K ﹤0.01% 598
2024
Q1 		– Sell
-7,696
Closed -$902K – 1204
2023
Q4 		$902K Buy
+7,696
New +$717K 0.01% 272

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

Brevan Howard Capital Management's MASI Position: Q1 2026 in Review

Brevan Howard Capital Management opened a new position in Masimo (MASI) in Q1 2026: 10,628 shares worth $1.89M. The stake represents 0.02% of the portfolio and ranks #585 among its holdings. This is a return to the name: Brevan Howard Capital Management previously reported a position in MASI as recently as Q3 2025.

Brevan Howard Capital Management first reported a position in MASI in Q4 2023 and has held it in 7 quarters since. The position peaked at $2.67M in Q1 2025. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Brevan Howard Capital Management held 10,628 shares of Masimo worth $1.89M as of Q1 2026.
  • Masimo was a new Brevan Howard Capital Management position in Q1 2026.
  • Masimo made up 0.02% of Brevan Howard Capital Management's portfolio in Q1 2026, its #585 holding.
  • Brevan Howard Capital Management first reported a position in Masimo in Q4 2023 and has held it in 7 quarters since.
  • Brevan Howard Capital Management's Masimo position peaked at $2.67M in Q1 2025.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

Based on Brevan Howard Capital Management's 13F filing for Q1 2026, filed 15 May 2026.