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Octave Specialty Group Inc

OSG
Exchange
NYSE
Industry
Surety Insurance
SEC CIK
0000874501

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.

Q1 2025 vs. Q4 2024

How the institutions holding Octave Specialty Group Inc changed between Q4 2024 and Q1 2025.

All holders in Q1 2025All holders in Q4 2024

13F holders of OSG: Q4 2024 compared with Q1 2025
MeasureQ4 2024Of which not filed for Q1 2025Q1 2025Change
Holders1813176−2
Shares41.5M873.0K37.5M−3.07M (−7.6%)
Value$522.4M$11.0M$327.5M−$183.8M (−35.9%)

3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (35)

Institutions that held Octave Specialty Group Inc at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to OSG in Q1 2025
InstitutionSharesValue% of portfolio
Schonfeld Strategic Advisors LLC522,484$4.57M0.03%
Nuveen, LLC282,657$2.47M0.00%
Trexquant Investment LP161,096$1.41M0.02%
Simplex Trading, LLC130,671$1.14M0.04%
Balyasny Asset Management LLC118,765$1.04M0.00%
Occudo Quantitative Strategies LP114,575$991.1K0.13%
ExodusPoint Capital Management, LP93,039$814.0K0.01%
Dark Forest Capital Management LP77,234$675.8K0.03%
Brevan Howard Capital Management LP74,331$650.4K0.02%
Caxton Associates LLP65,647$574.4K0.02%
Dynamic Technology Lab Private Ltd64,233$562.0K0.08%
HAP Trading, LLC41,939$367.0K0.13%
Jain Global LLC36,672$320.9K0.01%
SG Americas Securities, LLC36,196$317.0K0.00%
Magnetar Financial LLC27,188$237.9K0.00%
Quantessence Capital LLC23,500$205.6K0.05%
EntryPoint Capital, LLC20,235$177.1K0.08%
Petrus Trust Company, LTA19,432$170.0K0.02%
Laurion Capital Management LP16,353$143.1K0.01%
Hudson Bay Capital Management LP15,470$135.4K0.00%
First Citizens Bank & Trust Co14,070$123.1K0.00%
SummitTX Capital, L.P.13,069$114.4K0.01%
Catalyst Funds Management Pty Ltd12,840$112.3K0.03%
Envestnet Portfolio Solutions, Inc.12,527$109.6K0.00%
Man Group plc12,198$106.7K0.00%
Inceptionr LLC11,189$97.9K0.03%
DRW Securities, LLC10,800$94.5K0.01%
CIBC World Markets Corp10,101$88.4K0.00%
Quest Partners LLC6,947$60.8K0.01%
Boston Private Wealth LLC281$2.46K0.00%
Parkside Financial Bank & Trust55$4820.00%
Stephens Consulting, LLC40$3500.00%
Caitong International Asset Management Co., Ltd13$1140.00%
True Wealth Design, LLC13$1140.00%
Hantz Financial Services, Inc.12$00.00%

Sold out (37)

Institutions that held Octave Specialty Group Inc at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of OSG in Q1 2025
InstitutionShares, Q4 2024Value, Q4 2024
Portolan Capital Management, LLC589,437$7.46M
Principal Financial Group Inc229,954$2.91M
Exchange Traded Concepts, LLC164,474$2.08M
Walleye Capital LLC99,425$1.26M
Graham Capital Management, L.P.51,489$651.3K
Prudential Financial Inc47,670$603.0K
New York State Teachers Retirement System44,930$568.0K
Thrivent Financial for Lutherans36,671$464.0K
HighTower Advisors, LLC35,422$448.1K
Centiva Capital, LP35,111$444.2K
PDT Partners, LLC28,185$356.5K
State of Alaska, Department of Revenue26,912$340.0K
Illinois Municipal Retirement Fund24,988$316.1K
Louisiana State Employees Retirement System22,900$289.7K
Amundi24,217$280.7K
Creative Planning21,210$268.3K
Yousif Capital Management, LLC18,075$228.6K
AQR Capital Management LLC17,837$225.6K
Comerica Bank16,296$206.1K
Maryland State Retirement & Pension System15,927$201.5K
ProShare Advisors LLC13,756$174.0K
Bank of Montreal12,357$156.3K
Aigen Investment Management, LP11,539$146.0K
Oregon Public Employees Retirement Fund11,198$141.7K
Cornerstone Investment Partners, LLC10,323$130.6K
Commonwealth of Pennsylvania Public School Empls Retrmt Sys10,128$128.1K
Bayesian Capital Management, LP10,076$127.5K
Aquatic Capital Management LLC8,330$105.4K
CI Private Wealth, LLC28,220$33.6K
The PNC Financial Services Group, Inc.1,663$21.0K
Public Employees Retirement System of Ohio1,257$15.9K
Venturi Wealth Management, LLC375$4.74K
Hexagon Capital Partners LLC153$1.94K
Capital Advisors, Ltd. LLC76$1.00K
Parallel Advisors, LLC61$772
Umb Bank N A15$190
GWM Advisors LLC5$63

Not filed for Q1 2025 yet (3)

Institutions that held Octave Specialty Group Inc at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding OSG in Q4 2024 that haven't filed for Q1 2025
InstitutionShares, Q4 2024Value, Q4 2024
Nuveen Asset Management, LLC824,357$10.4M
Caxton Associates LP48,648$615.4K
Legacy Investment Solutions, LLC25$287