Mariner
OSG

Mariner’s Octave Specialty Group OSG Stock Holding History

Mariner’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
2026
Q2 		$191K Buy
+30,584
New +$159K ﹤0.01% 3171

Other funds holding OSG

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
WSL
Western Standard LLC Los Angeles, California $295M AUM 40.98% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
PGCM
Prescott Group Capital Management Tulsa, Oklahoma $1.16B AUM 53.61% 1-Year Est. Return
TAM
Third Avenue Management New York $625M AUM 48.93% 1-Year Est. Return
BCC
Bain Capital Credit Boston, Massachusetts $368M AUM 9.33% 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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

Mariner's OSG Position: Q2 2026 in Review

Mariner opened a new position in Octave Specialty Group (OSG) in Q2 2026: 30,584 shares worth $191K. The stake represents ﹤0.01% of the portfolio and ranks #3171 among its holdings.

148 funds tracked by Wall St. Rank hold OSG as of Q2 2026.

  • Mariner held 30,584 shares of Octave Specialty Group worth $191K as of Q2 2026.
  • Octave Specialty Group was a new Mariner position in Q2 2026.
  • Octave Specialty Group made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3171 holding.
  • 148 funds tracked by Wall St. Rank held Octave Specialty Group as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.