Millennium Management
OSG

Millennium Management’s Octave Specialty Group OSG Stock Holding History

Millennium 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
2021
Q1 		– Sell
-100,000
Closed -$1.54M – 5860
2020
Q4 		$1.54M Hold
100,000
– – ﹤0.01% 3436
2020
Q3 		$1.28M Buy
+100,000
New +$1.29M ﹤0.01% 2960

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 $3.38T AUM 44.17% 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

Millennium Management's OSG Position: Q2 2026 in Review

Millennium Management reduced its Octave Specialty Group (OSG) stake by 85% in Q2 2026, selling an estimated $601K and leaving 19,610 shares worth $122K. The position accounts for ﹤0.01% of the portfolio, ranked #5450.

Millennium Management first reported a position in OSG in Q2 2013 and has held it in 46 quarters since. The position peaked at $14.6M in Q3 2015. 147 funds tracked by Wall St. Rank hold OSG as of Q2 2026.

  • Millennium Management held 19,610 shares of Octave Specialty Group worth $122K as of Q2 2026.
  • Millennium Management sold 115,478 Octave Specialty Group shares in Q2 2026, an estimated $601K.
  • Octave Specialty Group made up ﹤0.01% of Millennium Management's portfolio in Q2 2026, its #5450 holding.
  • Millennium Management first reported a position in Octave Specialty Group in Q2 2013 and has held it in 46 quarters since.
  • Millennium Management's Octave Specialty Group position peaked at $14.6M in Q3 2015.
  • 147 funds tracked by Wall St. Rank held Octave Specialty Group as of Q2 2026.

Based on Millennium Management's 13F filing for Q2 2026, filed 14 Aug 2026.