Form 13-F position report

AMBAC FINL GROUP INC NEW COM S

Reported by MARSHALL WACE LLP

OSG CUSIP 023139884 Manager CIK 0001318757

Reported 364,574 shares, up 18,859 (5.5%) from the prior quarter.

Reported value -7.8%; share count 5.5% vs. the prior quarter.

Added
% of reported 13F value < 0.01% This manager · Q3 2024
Shares 364,574 Quarter-end amount reported
Reported value $4,086,873 Fair value at quarter end
Consecutive quarters held 3 Through Q3 2024

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
2022-12-31 1151545
2023-03-31 0
2023-06-30 404844
2023-09-30 0
2024-03-31 1086363
2024-06-30 4432067
2024-09-30 4086873
2024-12-31 3376779
2025-03-31 1797295
2025-06-30 4601901
2025-09-30 3795318
2025-12-31 5823892
2026-03-31 4953807
2026-06-30 3755206

Quarterly position history

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

14 quarters
Quarterly reported position history for AMBAC FINL GROUP INC NEW COM S held by MARSHALL WACE LLP.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q2 2026 Reduced 601,796 -463,539 (-43.5%) < 0.01% $3,755,206 2026-08-13
Q1 2026 Added 1,065,335 +316,763 (42.3%) < 0.01% $4,953,807 2026-05-15
Q4 2025 Added 748,572 +293,498 (64.5%) < 0.01% $5,823,892 2026-02-13
Q3 2025 Reduced 455,074 -193,081 (-29.8%) < 0.01% $3,795,318 2025-11-13
Q2 2025 Added 648,155 +442,750 (215.5%) < 0.01% $4,601,901 2025-08-13
Q1 2025 Reduced 205,405 -61,534 (-23.1%) < 0.01% $1,797,295 2025-05-15
Q4 2024 Reduced 266,939 -97,635 (-26.8%) < 0.01% $3,376,779 2025-02-13
Q3 2024 Added 364,574 +18,859 (5.5%) < 0.01% $4,086,873 2024-11-14
Q2 2024 Added 345,715 +276,210 (397.4%) < 0.01% $4,432,067 2024-08-14
Q1 2024 New 69,505 +69,505 (0.0%) < 0.01% $1,086,363 2024-05-15
Q3 2023 Reduced 0 -28,430 (-100.0%) 0 $0 2023-11-14
Q2 2023 New 28,430 +28,430 (0.0%) < 0.01% $404,844 2023-08-14
Q1 2023 Reduced 0 -66,029 (-100.0%) 0 $0 2023-05-15
Q4 2022 New 66,029 +66,029 (0.0%) < 0.01% $1,151,545 2023-02-14

Who else reported the position

207 managers reported AMBAC FINL GROUP INC NEW COM S for Q3 2024.

Managers reporting AMBAC FINL GROUP INC NEW COM S in Q3 2024.
Manager Activity Shares Change % of reported 13F Reported value Tenure
BlackRock Inc New 7,711,742 +7,711,742 < 0.01% $86,448,628 1 qtr
VANGUARD GROUP INC Reduced 4,118,423 -768,635 < 0.01% $46,167,521 46 qtrs
DIMENSIONAL FUND ADVISORS LP Reduced 2,804,400 -148,561 < 0.01% $31,437,294 44 qtrs
Repertoire Partners LP Reduced 2,063,745 -11,417 26.0% $23,134,581 12 qtrs
FMR LLC Reduced 1,732,186 -35,443 < 0.01% $19,417,801 46 qtrs
STATE STREET CORPORATION Added 1,653,544 +42,504 < 0.01% $18,536,228 36 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 1,028,956 +28,573 < 0.01% $11,537,132 46 qtrs
Bain Capital Credit LP New 1,108,012 +1,108,012 2.18% $10,557,692 1 qtr
AMERICAN CENTURY COMPANIES INC Added 894,484 +97,388 < 0.01% $10,027,166 11 qtrs
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Added 744,750 +123,360 0.03% $8,348,648 5 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
September 30, 2024
Filed
November 14, 2024
Filing type
13F-HR
Position type
COMMON STOCK

Voting authority reported

Sole
0
Shared
364,574
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.