Octave Specialty Group, Inc.
US ˙ NYSE ˙ US0231398845
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityAMBC / Octave Specialty Group, Inc.
InstitutionRoyce Value Trust Inc
Latest Disclosed Ownership39,401 shares
Latest Disclosed Value $ 279,747
Royce Value Trust Inc reports 30.88% decrease in ownership of AMBC / Octave Specialty Group, Inc.

On August 15, 2025 - Royce Value Trust Inc filed a NPORT-P form disclosing ownership of 39,401 shares of Octave Specialty Group, Inc. (US:AMBC) valued at $279,747 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 19, 2025 disclosing 57,003 shares of Octave Specialty Group, Inc.. This represents a change in shares of -30.88% during the quarter. The current value of the position is $355,791 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.

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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)
2025-08-15 2025-06-30 NP Ambac Financial Group EC US0231398845 39,401 -17,602 -30.88 280 -43.98 0.0140
2025-05-19 2025-03-31 NP Ambac Financial Group EC US0231398845 57,003 -15,931 -21.84 499 -45.99 0.0271
2025-02-21 2024-12-31 NP Ambac Financial Group EC US0231398845 72,934 36,015 97.55 923 123.24 0.0462
2024-11-19 2024-09-30 NP Ambac Financial Group EC US0231398845 36,919 0 0.00 414 -12.68 0.0205
2024-08-12 2024-06-30 NP Ambac Financial Group EC US0231398845 36,919 0 0.00 473 -18.02 0.0248
2024-05-28 2024-03-31 NP Ambac Financial Group EC US0231398845 36,919 12,605 51.84 577 96.93 0.0295
2023-11-22 2023-09-30 NP Ambac Financial Group EC US0231398845 24,314 -6,640 -21.45 293 -33.41 0.0176
2023-08-09 2023-06-30 NP Ambac Financial Group EC US0231398845 30,954 -1,864 -5.68 441 -13.39 0.0251
2023-05-19 2023-03-31 NP Ambac Financial Group EC US0231398845 32,818 -20,182 -38.08 508 -7.80 0.0301
2022-05-16 2022-03-31 NP Ambac Financial Group EC US0231398845 53,000 0 0.00 551 -35.18 0.0287
2022-02-24 2021-12-31 NP Ambac Financial Group EC US0231398845 53,000 0 0.00 851 12.14 0.0396
2021-11-22 2021-09-30 NP Ambac Financial Group EC US0231398845 53,000 0 0.00 759 -8.56 0.0365
2021-08-24 2021-06-30 NP Ambac Financial Group EC US0231398845 53,000 0 0.00 830 -6.54 0.0383
2021-05-17 2021-03-31 NP Ambac Financial Group EC US0231398845 53,000 -35,000 -39.77 887 -34.44 0.0425
2021-02-19 2020-12-31 NP Ambac Financial Group EC US0231398845 88,000 -534 -0.60 1,353 19.73 0.0717
2020-11-24 2020-09-30 NP Ambac Financial Group EC US0231398845 88,534 25,000 39.35 1,131 24.31 0.0748
2020-08-19 2020-06-30 NP Ambac Financial Group EC US0231398845 63,534 49,019 337.71 910 407.82 0.0632
2020-05-27 2020-03-31 NP Ambac Financial Group EC US0231398845 14,515 -10,015 -40.83 179 -66.16 0.0160
2020-02-19 2019-12-31 NP Ambac Financial Group EC 023139884 24,530 -7,473 -23.35 529 -15.36 0.0325
2019-11-25 2019-09-30 NP Ambac Financial Group EC US0231398845 32,003 32,003 626 0.0418
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.