PCM
OSG

Portolan Capital Management’s Octave Specialty Group OSG Stock Holding History

Portolan Capital Management’s Portfolio OSG Stock Details OSG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-589,437
Closed -$7.46M – 112
2024
Q4 		$7.46M Buy
+589,437
New +$7.11M 0.5% 68

Other funds holding OSG

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
RP
Repertoire Partners New York $143M AUM 28.83% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
BCC
Bain Capital Credit Boston, Massachusetts $368M AUM 9.33% 1-Year Est. Return

Portolan Capital Management's OSG Position: Q1 2025 in Review

Portolan Capital Management sold out of Octave Specialty Group (OSG) in Q1 2025, closing a stake of 589,437 shares — an estimated $7.46M sold.

Portolan Capital Management first reported a position in OSG in Q4 2024 and held it in 1 quarter. The position peaked at $7.46M in Q4 2024. 175 funds tracked by Wall St. Rank hold OSG as of Q1 2025.

  • Portolan Capital Management reported no remaining Octave Specialty Group position as of Q1 2025 after selling out during the quarter.
  • Portolan Capital Management sold 589,437 Octave Specialty Group shares in Q1 2025, an estimated $7.46M.
  • Portolan Capital Management first reported a position in Octave Specialty Group in Q4 2024 and held it in 1 quarter.
  • Portolan Capital Management's Octave Specialty Group position peaked at $7.46M in Q4 2024.
  • 175 funds tracked by Wall St. Rank held Octave Specialty Group as of Q1 2025.

Based on Portolan Capital Management's 13F filing for Q1 2025, filed 15 May 2025.