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.

Q3 2023 vs. Q2 2023

How the institutions holding Octave Specialty Group Inc changed between Q2 2023 and Q3 2023.

All holders in Q3 2023 All holders in Q2 2023

13F holders of OSG: Q2 2023 compared with Q3 2023
Measure	Q2 2023	Of which not filed for Q3 2023	Q3 2023	Change
Holders	160	1	167	+8
Shares	37.2M	117.8K	36.3M	−834.4K (−2.2%)
Value	$529.6M	$1.68M	$438.7M	−$89.1M (−16.9%)

1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (23)

Institutions that held Octave Specialty Group Inc at the end of Q3 2023 but not at the end of Q2 2023.

Institutions new to OSG in Q3 2023
Institution	Shares	Value	% of portfolio
Hotchkis & Wiley Capital Management LLC	415,040	$5.01M	0.02%
Bank of Montreal	204,023	$2.62M	0.00%
First Trust Advisors LP	121,538	$1.47M	0.00%
PDT Partners, LLC	39,614	$477.7K	0.06%
Dark Forest Capital Management LP	31,505	$379.9K	0.03%
ExodusPoint Capital Management, LP	30,902	$373.0K	0.00%
Y-Intercept (Hong Kong) Ltd	27,350	$329.8K	0.03%
Illinois Municipal Retirement Fund	25,740	$310.0K	0.01%
HRT Financial LP	22,589	$272.0K	0.00%
Comerica Bank	20,748	$250.2K	0.00%
Graham Capital Management, L.P.	20,255	$244.3K	0.01%
Vident Advisory, LLC	20,252	$244.2K	0.01%
SEI Investments Co	16,396	$197.7K	0.00%
Nebula Research & Development LLC	15,202	$183.3K	0.10%
SG Americas Securities, LLC	15,060	$182.0K	0.00%
GTS Securities LLC	12,868	$155.2K	0.00%
Dynamic Technology Lab Private Ltd	12,495	$150.0K	0.01%
XTX Topco Ltd	11,655	$140.6K	0.02%
Occudo Quantitative Strategies LP	10,469	$126.3K	0.02%
Sherbrooke Park Advisers LLC	10,100	$121.8K	0.04%
Clearstead Advisors, LLC	6,000	$72.4K	0.00%
Quarry LP	881	$10.6K	0.01%
Bessemer Group Inc	293	$4.00K	0.00%

Sold out (15)

Institutions that held Octave Specialty Group Inc at the end of Q2 2023 and filed for Q3 2023 without it.

Institutions that sold out of OSG in Q3 2023
Institution	Shares, Q2 2023	Value, Q2 2023
Two Seas Capital LP	187,568	$2.67M
National Asset Management, Inc.	165,988	$2.36M
Wolverine Trading, LLC	155,878	$2.17M
Walleye Trading LLC	91,934	$1.31M
Voloridge Investment Management, LLC	82,582	$1.18M
Gsa Capital Partners LLP	72,571	$1.03M
CWM Advisors, LLC	41,652	$593.1K
Marshall Wace, LLP	28,430	$404.8K
Ci Investments Inc.	24,109	$343.0K
Versor Investments LP	17,400	$247.8K
Group One Trading, L.P.	8,956	$127.5K
STRS Ohio	6,300	$89.0K
Robeco Institutional Asset Management B.V.	2,674	$38.1K
GWM Advisors LLC	181	$2.58K
Impact Partnership Wealth, LLC	83	$1.18K

Not filed for Q3 2023 yet (1)

Institutions that held Octave Specialty Group Inc at the end of Q2 2023 and haven't filed a 13F for Q3 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding OSG in Q2 2023 that haven't filed for Q3 2023
Institution	Shares, Q2 2023	Value, Q2 2023
EA Series Trust	117,822	$1.68M