§ INSURANCE
USD · InsuranceOSG
OCTAVE SPECIALTY GROUP INC
USDSector · Insurance
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
93 increased/new, 42 decreased/exited (13F)
AC 13F Analysis
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| BlackRock, Inc. | 3.9M | 0.0% | −13% |
| Western Standard LLC | 2.2M | 5.5% | −10% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.9M | n/a | n/a |
| Prescott Group Capital Management, L.L.C. | 1.6M | 0.7% | +78% |
| Wolf Hill Capital Management, LP | 1.5M | 0.7% | −22% |
| GENDELL JEFFREY L | 1.4M | 0.1% | −10% |
◇ AC INTELLIGENCE
Top institutional owners for OSG as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER18.7% · 0 holders
OTHER49.8% · 93 holders
PASSIVE / INDEX12.2% · 7 holders
DEALER / BANK6.9% · 19 holders
QUALITY / COMPOUNDER5.7% · 9 holders
SYSTEMATIC / QUANT4.5% · 8 holders
TACTICAL / MACRO1.9% · 3 holders
INCOME / DEFENSIVE0.5% · 8 holders
ACTIVIST0.0% · 1 holder
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for OSG in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention OSG yet.