Octave Specialty Group Inc (OSG) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

48,106,069Shares Outstanding
34,795,135Shares held by institutions
$192,417,104Value of institutional holdings
72.33%Institutional ownership %
-4.11%Shares Changed QoQ
143No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Octave Specialty Group Inc (NYSE:OSG) has 143 institutional investors with active 13F positions as of December 2025.

147 Institutional Holders

34,795,135 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
BlackRock, Inc. 31 Mar, 2026 3,917,798 -570,670 -12.71% $18,217,762.00
Western Standard LLC 31 Mar, 2026 2,247,591 -257,036 -10.26% $10,451,298.00
VANGUARD CAPITAL MANAGEMENT LLC 31 Mar, 2026 1,945,076 1,945,076 0.00% $9,044,603.00
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. 31 Mar, 2026 1,592,587 699,070 78.24% $7,405,530.00
Wolf Hill Capital Management, LP 31 Mar, 2026 1,470,334 -418,639 -22.16% $6,837,053.00
GENDELL JEFFREY L 31 Mar, 2026 1,413,212 -156,260 -9.96% $6,571,436.00
THIRD AVENUE MANAGEMENT LLC 31 Mar, 2026 1,341,211 559,118 71.49% $6,236,631.00
DIMENSIONAL FUND ADVISORS LP 31 Mar, 2026 1,310,132 -375,495 -22.28% $6,092,068.00
Bain Capital Credit, LP 31 Mar, 2026 1,108,012 0 0.00% $5,152,256.00
MARSHALL WACE, LLP 31 Mar, 2026 1,065,335 316,763 42.32% $4,953,807.00
GEODE CAPITAL MANAGEMENT, LLC 31 Mar, 2026 1,022,438 -2,109 -0.21% $4,755,504.00
State Street Corp 31 Mar, 2026 941,404 -1,964 -0.21% $4,377,529.00
JACOBS LEVY EQUITY MANAGEMENT, INC 31 Mar, 2026 884,272 647,087 272.82% $4,111,865.00
Nuveen, LLC 31 Mar, 2026 800,253 -10,026 -1.24% $3,721,176.00
JANE STREET GROUP, LLC 31 Mar, 2026 764,384 -756,270 -49.73% $3,554,385.00
Caption Management, LLC 31 Mar, 2026 642,597 -428,497 -40.01% $2,988,076.00
Bracebridge Capital, LLC 31 Mar, 2026 579,234 0 0.00% $2,693,438.00
RIHO Partners, LLC 31 Mar, 2026 546,569 546,569 0.00% $2,541,546.00
CITADEL ADVISORS LLC 31 Mar, 2026 431,809 144,526 50.31% $2,007,912.00
ESSEX INVESTMENT MANAGEMENT CO LLC 31 Mar, 2026 418,203 7,381 1.80% $1,944,644.00