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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.

13F holders, Q2 2023

Institutional positions in Octave Specialty Group Inc as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
160
0 vs. Q1 2023
Shares held
37.2M
−1.63M (−4.2%) vs. Q1 2023
Total value
$529.6M
−$66.6M (−11.2%) vs. Q1 2023
New holders
22
48 more added
Sold out
22
56 more reduced

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting OSG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 160 institutions
Q1 2021: 140 institutionsQ2 2021: 126 institutionsQ3 2021: 133 institutionsQ4 2021: 135 institutionsQ1 2022: 150 institutionsQ2 2022: 141 institutionsQ3 2022: 154 institutionsQ4 2022: 167 institutionsQ1 2023: 160 institutionsQ2 2023: 160 institutionsQ3 2023: 167 institutionsQ4 2023: 174 institutionsQ1 2024: 172 institutionsQ2 2024: 182 institutionsQ3 2024: 180 institutionsQ4 2024: 181 institutionsQ1 2025: 176 institutionsQ2 2025: 147 institutionsQ3 2025: 130 institutionsQ4 2025: 144 institutionsQ1 2026: 148 institutionsQ2 2026: 147 institutions
Value heldQ2 2023: $529.6M
Q1 2021: $611.7MQ2 2021: $565.0MQ3 2021: $516.2MQ4 2021: $598.9MQ1 2022: $392.1MQ2 2022: $386.6MQ3 2022: $400.7MQ4 2022: $600.4MQ1 2023: $596.2MQ2 2023: $529.6MQ3 2023: $438.7MQ4 2023: $628.4MQ1 2024: $591.5MQ2 2024: $495.9MQ3 2024: $449.6MQ4 2024: $522.4MQ1 2025: $327.5MQ2 2025: $262.5MQ3 2025: $303.6MQ4 2025: $270.0MQ1 2026: $151.4MQ2 2026: $187.6M
Institutions holding OSG and their total value by quarter
QuarterHoldersValue
Q2 2026147$187.6M
Q1 2026148$151.4M
Q4 2025144$270.0M
Q3 2025130$303.6M
Q2 2025147$262.5M
Q1 2025176$327.5M
Q4 2024181$522.4M
Q3 2024180$449.6M
Q2 2024182$495.9M
Q1 2024172$591.5M
Q4 2023174$628.4M
Q3 2023167$438.7M
Q2 2023160$529.6M
Q1 2023160$596.2M
Q4 2022167$600.4M
Q3 2022154$400.7M
Q2 2022141$386.6M
Q1 2022150$392.1M
Q4 2021135$598.9M
Q3 2021133$516.2M
Q2 2021126$565.0M
Q1 2021140$611.7M

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q1 2023.

Institutions holding OSG in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Amalgamated Bank18,171$259.0K0.00%−600−3.2%Reduced
Maryland State Retirement & Pension System17,657$251.4K0.01%−453−2.5%Reduced
Versor Investments LP17,400$247.8K0.04%−1,300−7.0%Reduced
Allspring Global Investments Holdings, LLC17,058$242.9K0.00%+9,272+119.1%Added
BNP Paribas Arbitrage, SA16,580$236.1K0.00%−19,573−54.1%Reduced
Manufacturers Life Insurance Company, The16,185$230.5K0.00%−456−2.7%Reduced
Oregon Public Employees Retirement Fund14,098$200.8K0.00%−400−2.8%Reduced
KLCM Advisors, Inc.14,000$199.4K0.04%00.0%Unchanged
HighTower Advisors, LLC13,180$188.0K0.00%−98−0.7%Reduced
Arizona State Retirement System12,720$181.1K0.00%−310−2.4%Reduced
State Board of Administration of Florida Retirement System12,570$179.0K0.00%−3,470−21.6%Reduced
Teachers Retirement System of the State of Kentucky12,301$175.0K0.00%+789+6.9%Added
State of Wyoming11,980$170.6K0.05%+2,721+29.4%Added
Millennium Management LLC11,820$168.3K0.00%−100,546−89.5%Reduced
State of Wisconsin Investment Board11,081$157.8K0.00%+11,081New
Everence Capital Management Inc10,910$152.0K0.01%00.0%Unchanged
Long Focus Capital Management, LLC10,000$142.4K0.02%00.0%Unchanged
Group One Trading, L.P.8,956$127.5K0.01%+8,956New
Counterpoint Mutual Funds LLC8,934$127.2K0.12%+8,934New
Zurcher Kantonalbank (Zurich Cantonalbank)8,189$116.6K0.00%00.0%Unchanged
Caption Management, LLC8,000$113.9K0.02%−7,000−46.7%Reduced
Quantbot Technologies LP7,273$103.6K0.01%+7,273New
STRS Ohio6,300$89.0K0.00%00.0%Unchanged
Amundi5,973$85.1K0.00%−147−2.4%Reduced
Belvedere Trading LLC5,263$74.9K0.02%+5,263New
Royal Bank of Canada4,878$70.0K0.00%+2,201+82.2%Added
Federated Hermes, Inc.4,862$69.2K0.00%+3,924+418.3%Added
KBC Group NV3,972$57.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.3,798$54.1K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.3,101$44.2K0.00%+277+9.8%Added
Nisa Investment Advisors, LLC2,814$40.1K0.00%00.0%Unchanged
Robeco Institutional Asset Management B.V.2,674$38.1K0.00%00.0%Unchanged
Metropolitan Life Insurance Co2,437$34.7K0.00%+382+18.6%Added
Lazard Asset Management LLC1,691$24.0K0.00%+1,691New
Dorsey Wright & Associates1,666$23.7K0.01%+168+11.2%Added
Advisor Group Holdings, Inc.1,653$23.5K0.00%+75+4.8%Added
Gladius Capital Management LP1,476$21.0K0.01%+1,476New
Public Employees Retirement System of Ohio1,250$18.0K0.00%−39,286−96.9%Reduced
Tower Research Capital LLC (TRC)826$11.8K0.00%−255−23.6%Reduced
Covestor Ltd648$9.00K0.01%+648New
Lindbrook Capital, LLC617$8.79K0.00%00.0%Unchanged
Fifth Third Bancorp429$6.11K0.00%00.0%Unchanged
Capital Analysts, LLC325$5.00K0.00%00.0%Unchanged
US Bancorp347$4.94K0.00%+16+4.8%Added
Versant Capital Management, Inc274$3.90K0.00%00.0%Unchanged
Signaturefd, LLC252$3.59K0.00%00.0%Unchanged
Parkside Financial Bank & Trust215$3.06K0.00%00.0%Unchanged
GWM Advisors LLC181$2.58K0.00%+181New
Red Tortoise LLC180$2.56K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC177$2.52K0.00%00.0%Unchanged
Barrow Hanley Mewhinney & Strauss LLC150$2.14K0.00%+150New
Quadrant Capital Group LLC135$1.92K0.00%00.0%Unchanged
Parallel Advisors, LLC106$1.51K0.00%−6−5.4%Reduced
Impact Partnership Wealth, LLC83$1.18K0.00%+83New
CWM, LLC69$1.00K0.00%−78−53.1%Reduced
Capital Advisors, Ltd. LLC55$1.00K0.00%00.0%Unchanged
Massmutual Trust Co FSB58$8260.00%00.0%Unchanged
Lee Financial Co36$5130.00%00.0%Unchanged
Farmers & Merchants Investments Inc31$4410.00%00.0%Unchanged
IFP Advisors, Inc19$3840.00%00.0%Unchanged
Jacobs Levy Equity Management, Inc0$00.00%−275,414−100.0%Sold out
Hillsdale Investment Management Inc.0$00.00%−257,100−100.0%Sold out
National Bank of Canada0$00.00%−80,000−100.0%Sold out
Winton Group Ltd0$00.00%−73,877−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−63,247−100.0%Sold out
Algert Global LLC0$00.00%−62,905−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−47,400−100.0%Sold out
Redwood Investment Management, LLC0$00.00%−40,000−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−28,244−100.0%Sold out
Trexquant Investment LP0$00.00%−24,408−100.0%Sold out
Virginia Retirement Systems Et Al0$00.00%−21,500−100.0%Sold out
SG Americas Securities, LLC0$00.00%−14,233−100.0%Sold out
Clear Harbor Asset Management, LLC0$00.00%−12,450−100.0%Sold out
Mackenzie Financial Corp0$00.00%−10,550−100.0%Sold out
Point72 Middle East FZE0$00.00%−3,306−100.0%Sold out
Quarry LP0$00.00%−2,660−100.0%Sold out
ICA Group Wealth Management, LLC0$00.00%−354−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−314−100.0%Sold out
Parallax Volatility Advisers, L.P.0$00.00%−99−100.0%Sold out
Graves-Light Private Wealth Management, Inc.0$00.00%−35−100.0%Sold out
Cutler Group LP0$00.00%−56−100.0%Sold out
Cerity Partners LLC0$00.00%−155−100.0%Sold out