Form 13-F position report

OCTAVE SPECIALTY GROUP INC

Reported by CHARLES SCHWAB INVESTMENT MANAGEMENT INC

OSG CUSIP 023139884 Manager CIK 0000884546

Reported 361,424 shares, down 21,148 (5.5%) from the prior quarter.

Reported value -11.9%; share count -5.5% vs. the prior quarter.

Reduced
% of reported 13F value < 0.01% This manager · Q4 2025
Shares 361,424 Quarter-end amount reported
Reported value $2,811,879 Fair value at quarter end
Consecutive quarters held 51 Through Q4 2025

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2021-09-30 8508000
2021-12-31 10059000
2022-03-31 6748000
2022-06-30 7869000
2022-09-30 8699000
2022-12-31 11826639
2023-03-31 10410656
2023-06-30 8908800
2023-09-30 7719413
2023-12-31 10705029
2024-03-31 10410705
2024-06-30 7680052
2024-09-30 6203603
2024-12-31 6389844
2025-03-31 3314185
2025-06-30 2754509
2025-09-30 3190650
2025-12-31 2811879
2026-03-31 1373350
2026-06-30 2357903

Quarterly position history

How this manager's reported quarter-end position changed over time.

20 quarters
Quarterly reported position history for OCTAVE SPECIALTY GROUP INC held by CHARLES SCHWAB INVESTMENT MANAGEMENT INC.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q2 2026 Added 377,869 +82,525 (27.9%) < 0.01% $2,357,903 2026-08-14
Q1 2026 Reduced 295,344 -66,080 (-18.3%) < 0.01% $1,373,350 2026-05-15
Q4 2025 Reduced 361,424 -21,148 (-5.5%) < 0.01% $2,811,879 2026-02-13
Q3 2025 Reduced 382,572 -5,387 (-1.4%) < 0.01% $3,190,650 2025-11-10
Q2 2025 Added 387,959 +9,195 (2.4%) < 0.01% $2,754,509 2025-08-12
Q1 2025 Reduced 378,764 -126,362 (-25.0%) < 0.01% $3,314,185 2025-05-09
Q4 2024 Reduced 505,126 -48,273 (-8.7%) < 0.01% $6,389,844 2025-02-06
Q3 2024 Reduced 553,399 -45,669 (-7.6%) < 0.01% $6,203,603 2024-11-12
Q2 2024 Reduced 599,068 -67,004 (-10.1%) < 0.01% $7,680,052 2024-08-12
Q1 2024 Added 666,072 +16,495 (2.5%) < 0.01% $10,410,705 2024-05-09
Q4 2023 Added 649,577 +9,493 (1.5%) < 0.01% $10,705,029 2024-02-06
Q3 2023 Added 640,084 +14,466 (2.3%) < 0.01% $7,719,413 2023-11-08
Q2 2023 Reduced 625,618 -46,905 (-7.0%) < 0.01% $8,908,800 2023-08-10
Q1 2023 Reduced 672,523 -5,610 (-0.8%) < 0.01% $10,410,656 2023-05-12
Q4 2022 Reduced 678,133 -4,068 (-0.6%) < 0.01% $11,826,639 2023-02-13
Q3 2022 Reduced 682,201 -11,055 (-1.6%) < 0.01% $8,699,000 2022-11-14
Q2 2022 Added 693,256 +44,480 (6.9%) < 0.01% $7,869,000 2022-08-15
Q1 2022 Added 648,776 +22,055 (3.5%) < 0.01% $6,748,000 2022-05-13
Q4 2021 Added 626,721 +32,626 (5.5%) < 0.01% $10,059,000 2022-02-11
Q3 2021 Added 594,095 +31,746 (5.6%) < 0.01% $8,508,000 2021-11-16
Five years are shown. A free account unlocks the complete reported history. Unlock full history

Who else reported the position

159 managers reported OCTAVE SPECIALTY GROUP INC for Q4 2025.

Managers reporting OCTAVE SPECIALTY GROUP INC in Q4 2025.
Manager Activity Shares Change % of reported 13F Reported value Tenure
BlackRock Inc Reduced 4,488,468 -4,863 < 0.01% $34,920,281 6 qtrs
VANGUARD GROUP INC Reduced 2,508,395 -46,786 < 0.01% $19,515,314 51 qtrs
Western Standard LLC Reduced 2,504,627 -136,724 8.99% $19,485,998 6 qtrs
Wolf Hill Capital Management LP Added 1,888,973 +730,776 1.62% $14,696,210 5 qtrs
DIMENSIONAL FUND ADVISORS LP Reduced 1,685,627 -455,420 < 0.01% $13,114,300 49 qtrs
GENDELL JEFFREY L Reduced 1,569,472 -295,040 0.21% $12,210,492 13 qtrs
JANE STREET GROUP LLC Added 1,520,654 +671,472 < 0.01% $11,830,688 17 qtrs
Bain Capital Credit LP Unchanged 1,108,012 0 2.25% $8,620,333 6 qtrs
Caption Management LLC Reduced 1,071,094 -50,085 0.06% $8,333,111 14 qtrs
GEODE CAPITAL MANAGEMENT LLC Reduced 1,024,547 -36,047 < 0.01% $7,972,836 51 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
December 31, 2025
Filed
February 13, 2026
Filing type
13F-HR
Position type
COM NEW

Voting authority reported

Sole
361,424
Shared
0
None
0

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.