X0202
SCHEDULE 13G/A
0001595888-26-000014
0001595888
XXXXXXXX
LIVE
1
Common stock par value $0.01 per share
03/31/2026
0000874501
OCTAVE SPECIALTY GROUP INC
023139884
40 WALL STREET
40 WALL STREET
NEW YORK
NY
10005
Rule 13d-1(b)
JANE STREET GROUP, LLC
DE
0.00
771384.00
0.00
771384.00
771384.00
1.7
HC
Jane Street Capital, LLC
DE
0.00
420679.00
0.00
420679.00
420679.00
0.9
BD
Jane Street Options, LLC
DE
0.00
102.00
0.00
102.00
102.00
0.0
BD
Jane Street Global Trading, LLC
DE
0.00
350603.00
0.00
350603.00
350603.00
0.8
OO
OCTAVE SPECIALTY GROUP INC
40 WALL STREET, 40 WALL STREET, NEW YORK, NEW YORK, 10005.
Jane Street Group, LLC;
Jane Street Capital, LLC;
Jane Street Options, LLC;
Jane Street Global Trading, LLC
Jane Street Group, LLC
250 Vesey Street
6th Floor
New York, NY 10281
Jane Street Capital, LLC
250 Vesey Street
6th Floor
New York, NY 10281
Jane Street Options, LLC
250 Vesey Street
6th Floor
New York, NY 10281
Jane Street Global Trading, LLC
250 Vesey Street
6th Floor
New York, NY 10281
See Item 4 of Cover Page
N
BD
HC
771,384.00
1.7%
0
771,384.00
0
771,384.00
Y
Y
N
Subsidiary:
Jane Street Capital, LLC - (a) Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o)
Jane Street Options, LLC - (a) Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o)
Jane Street Global Trading, LLC - N/A
Y
Y
N
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
JANE STREET GROUP, LLC
/s/ Jeremy Kahn
Jeremy Kahn (Authorized Signatory)
05/11/2026
Jane Street Capital, LLC
/s/ Jeremy Kahn
Jeremy Kahn (Authorized Signatory)
05/11/2026
Jane Street Options, LLC
/s/ Jeremy Kahn
Jeremy Kahn (Authorized Signatory)
05/11/2026
Jane Street Global Trading, LLC
/s/ Jeremy Kahn
Jeremy Kahn (Authorized Signatory)
05/11/2026