Octave Specialty Group, Inc.
DE ˙ DB ˙ US0231398845
4,14 € ↓ -0,04 (-0,96%)
2026-06-04
DEL PRIS
SecurityDE:FGPN / Octave Specialty Group, Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership1,065,335 shares
Latest Disclosed Value $ 4,953,807
Marshall Wace, Llp reports 42.32% increase in ownership of FGPN / Octave Specialty Group, Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 1,065,335 shares of Octave Specialty Group, Inc. (DE:FGPN) valued at $3,984,353 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 748,572 shares of Octave Specialty Group, Inc.. This represents a change in shares of 42.32% during the quarter. The current value of the position is $4,410,487 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F OCTAVE SPECIALTY COMMON STOCK 023139884 1,065,335 316,763 42.32 4,954 -14.94 0.0023
2026-02-13 2025-12-31 13F OCTAVE SPECIALTY COMMON STOCK 023139884 748,572 293,498 64.49 5,824 53.44 0.0053
2025-11-13 2025-09-30 13F AMBAC FINANCIAL COMMON STOCK 023139884 455,074 -193,081 -29.79 3,795 -17.52 0.0038
2025-08-13 2025-06-30 13F AMBAC FINANCIAL COMMON STOCK 023139884 648,155 442,750 215.55 4,602 156.04 0.0052
2025-05-15 2025-03-31 13F AMBAC FINANCIAL COMMON STOCK 023139884 205,405 -61,534 -23.05 1,797 -46.77 0.0023
2025-02-13 2024-12-31 13F AMBAC FINANCIAL COMMON STOCK 023139884 266,939 -97,635 -26.78 3,377 -17.38 0.0041
2024-11-14 2024-09-30 13F AMBAC FINANCIAL COMMON STOCK 023139884 364,574 18,859 5.46 4,087 -7.81 0.0050
2024-08-14 2024-06-30 13F AMBAC FINANCIAL COMMON STOCK 023139884 345,715 276,210 397.40 4,432 308.10 0.0059
2024-05-15 2024-03-31 13F AMBAC FINANCIAL COMMON STOCK 023139884 69,505 69,505 1,086 0.0017
2023-11-14 2023-09-30 13F AMBAC FINANCIAL COMMON STOCK 023139884 0 -28,430 -100.00 0 -100.00
2023-08-14 2023-06-30 13F AMBAC FINANCIAL COMMON STOCK 023139884 28,430 28,430 405 0.0008
2023-05-15 2023-03-31 13F AMBAC FINANCIAL COMMON STOCK 023139884 0 -66,029 -100.00 0 -100.00
2023-02-14 2022-12-31 13F AMBAC FINANCIAL COMMON STOCK 023139884 66,029 66,029 1,152 0.0026
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.