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Portolan Capital Management’s Sphere Entertainment SPHR Stock Holding History

Portolan Capital Management’s Portfolio SPHR Stock Details SPHR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-175,646
Closed -$16.7M – 175
2025
Q4 		$16.7M Sell
175,646
-32,772
-16% -$2.5M 0.89% 35
2025
Q3 		$12.9M Buy
+208,418
New +$9.84M 0.7% 48

Other funds holding SPHR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
JCAM
Jericho Capital Asset Management New York $6.76B AUM 88.1% 1-Year Est. Return
AI
Ariel Investments Chicago, Illinois $8.93B AUM 29.58% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
GI
GAMCO Investors Greenwich, Connecticut $10.2B AUM 30.27% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Portolan Capital Management's SPHR Position: Q1 2026 in Review

Portolan Capital Management sold out of Sphere Entertainment (SPHR) in Q1 2026, closing a stake of 175,646 shares — an estimated $16.7M sold.

Portolan Capital Management first reported a position in SPHR in Q3 2025 and held it in 2 quarters. The position peaked at $16.7M in Q4 2025. 376 funds tracked by Wall St. Rank hold SPHR as of Q1 2026.

  • Portolan Capital Management reported no remaining Sphere Entertainment position as of Q1 2026 after selling out during the quarter.
  • Portolan Capital Management sold 175,646 Sphere Entertainment shares in Q1 2026, an estimated $16.7M.
  • Portolan Capital Management first reported a position in Sphere Entertainment in Q3 2025 and held it in 2 quarters.
  • Portolan Capital Management's Sphere Entertainment position peaked at $16.7M in Q4 2025.
  • 376 funds tracked by Wall St. Rank held Sphere Entertainment as of Q1 2026.

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