GCM
MASI

Graham Capital Management’s Masimo MASI Stock Holding History

Graham 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 		– Sell
-6,017
Closed -$783K – 1376
2025
Q4 		$783K Buy
6,017
+247
+4% +$35.4K 0.02% 458
2025
Q3 		$851K Sell
5,770
-4,710
-45% -$713K 0.01% 431
2025
Q2 		$1.76M Buy
+10,480
New +$1.67M 0.03% 400
2024
Q4 		– Sell
-4,483
Closed -$598K – 1378
2024
Q3 		$598K Buy
+4,483
New +$520K 0.01% 597
2023
Q4 		– Sell
-2,797
Closed -$245K – 1189
2023
Q3 		$245K Sell
2,797
-1,784
-39% -$208K 0.01% 793
2023
Q2 		$754K Sell
4,581
-4,216
-48% -$734K 0.02% 439
2023
Q1 		$1.62M Buy
+8,797
New +$1.48M 0.05% 320
2022
Q2 		– Sell
-11,392
Closed -$1.66M – 1153
2022
Q1 		$1.66M Buy
11,392
+10,105
+785% +$1.94M 0.06% 164
2021
Q4 		$376K Buy
+1,287
New +$367K 0.02% 247

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

Graham Capital Management's MASI Position: Q1 2026 in Review

Graham Capital Management sold out of Masimo (MASI) in Q1 2026, closing a stake of 6,017 shares — an estimated $783K sold.

Graham Capital Management first reported a position in MASI in Q4 2021 and held it in 9 quarters. The position peaked at $1.76M in Q2 2025. 445 funds tracked by Wall St. Rank hold MASI as of Q1 2026.

  • Graham Capital Management reported no remaining Masimo position as of Q1 2026 after selling out during the quarter.
  • Graham Capital Management sold 6,017 Masimo shares in Q1 2026, an estimated $783K.
  • Graham Capital Management first reported a position in Masimo in Q4 2021 and held it in 9 quarters.
  • Graham Capital Management's Masimo position peaked at $1.76M in Q2 2025.
  • 445 funds tracked by Wall St. Rank held Masimo as of Q1 2026.

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