Octave Specialty Group Inc

OSG

Exchange: NYSE
Industry: Surety Insurance
SEC CIK: 0000874501

SEC filings (opens in a new tab)

No open-market purchases or sales by Octave Specialty Group Inc insiders were filed in the last 90 days; 147 institutions reported holding it in 13F filings for Q2 2026, worth $187.6M in total; no superinvestor holds it.

Q4 2024 vs. Q3 2024

How the institutions holding Octave Specialty Group Inc changed between Q3 2024 and Q4 2024.

All holders in Q4 2024 All holders in Q3 2024

13F holders of OSG: Q3 2024 compared with Q4 2024
Measure	Q3 2024	Q4 2024	Change
Holders	180	181	+1
Shares	40.3M	41.5M	+1.22M (+3.0%)
Value	$449.6M	$522.4M	+$72.7M (+16.2%)

New holders (24)

Institutions that held Octave Specialty Group Inc at the end of Q4 2024 but not at the end of Q3 2024.

Institutions new to OSG in Q4 2024
Institution	Shares	Value	% of portfolio
Wolf Hill Capital Management, LP	1,000,003	$12.7M	1.02%
Portolan Capital Management, LLC	589,437	$7.46M	0.50%
Third Avenue Management LLC	230,416	$2.91M	0.56%
VELA Investment Management, LLC	62,584	$791.7K	0.27%
Connor, Clark & Lunn Investment Management Ltd.	47,306	$598.4K	0.00%
Wolverine Trading, LLC	28,752	$356.8K	0.01%
Two Sigma Advisers, LP	21,100	$266.9K	0.00%
Oxford Asset Management LLP	18,317	$231.7K	0.10%
Maryland State Retirement & Pension System	15,927	$201.5K	0.00%
ProShare Advisors LLC	13,756	$174.0K	0.00%
Freestone Grove Partners LP	13,494	$170.7K	0.00%
KLP Kapitalforvaltning AS	12,400	$156.9K	0.00%
Axq Capital, LP	12,112	$153.2K	0.07%
Aigen Investment Management, LP	11,539	$146.0K	0.03%
Bayesian Capital Management, LP	10,076	$127.5K	0.02%
Police & Firemen's Retirement System of New Jersey	9,202	$116.4K	0.00%
Aquatic Capital Management LLC	8,330	$105.4K	0.00%
Point72 Asset Management, L.P.	7,300	$92.3K	0.00%
Public Employees Retirement System of Ohio	1,257	$15.9K	0.00%
Skopos Labs, Inc.	352	$4.45K	0.00%
Hexagon Capital Partners LLC	153	$1.94K	0.00%
Principal Securities, Inc.	16	$202	0.00%
IFP Advisors, Inc	0	$152	0.00%
SBI Securities Co., Ltd.	10	$127	0.00%

Sold out (23)

Institutions that held Octave Specialty Group Inc at the end of Q3 2024 and filed for Q4 2024 without it.

Institutions that sold out of OSG in Q4 2024
Institution	Shares, Q3 2024	Value, Q3 2024
Hillsdale Investment Management Inc.	230,200	$2.58M
Allianz Asset Management GmbH	84,926	$952.0K
Simplex Trading, LLC	52,673	$590.0K
Acadian Asset Management LLC	48,114	$537.0K
Jump Financial, LLC	43,816	$491.2K
Man Group plc	42,348	$474.7K
LPL Financial LLC	36,240	$406.3K
Quest Partners LLC	35,388	$396.7K
Paloma Partners Management Co	33,068	$370.7K
Magnetar Financial LLC	24,403	$273.6K
Dynamic Technology Lab Private Ltd	24,044	$270.0K
Teacher Retirement System of Texas	18,919	$212.0K
Wexford Capital LP	18,000	$201.8K
GTS Securities LLC	17,092	$191.6K
SG Americas Securities, LLC	16,467	$185.0K
Interval Partners, LP	10,238	$114.8K
Long Focus Capital Management, LLC	10,000	$112.1K
nVerses Capital, LLC	9,600	$107.6K
Catalyst Funds Management Pty Ltd	3,000	$33.6K
Federated Hermes, Inc.	2,503	$28.1K
Point72 Hong Kong Ltd	1,370	$15.4K
Quarry LP	1,246	$14.0K
Allspring Global Investments Holdings, LLC	65	$728