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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 2021

Institutional positions in Octave Specialty Group Inc as of Jun 30, 2021. 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
126
−14 vs. Q1 2021
Shares held
36.1M
−427.9K (−1.2%) vs. Q1 2021
Total value
$565.0M
−$46.6M (−7.6%) vs. Q1 2021
New holders
12
37 more added
Sold out
26
46 more reduced

Compare with Q1 2021: 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 2021: 126 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 2021: $565.0M
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 2021

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q1 2021.

Institutions holding OSG in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Parallel Advisors, LLC16$00.00%00.0%Unchanged
Parkside Financial Bank & Trust11$00.00%+11New
Lee Financial Co36$1.00K0.00%00.0%Unchanged
Graves-Light Private Wealth Management, Inc.35$1.00K0.00%00.0%Unchanged
Lindbrook Capital, LLC47$1.00K0.00%00.0%Unchanged
Loring Wolcott & Coolidge Fiduciary Advisors LLP65$1.00K0.00%+65New
Gryphon Financial Partners LLC78$1.00K0.00%+78New
Eaton Vance Management153$2.00K0.00%−43−21.9%Reduced
IFP Advisors, Inc141$2.00K0.00%+141New
Steward Partners Investment Advisory, LLC177$3.00K0.00%−686−79.5%Reduced
Versant Capital Management, Inc199$3.00K0.00%00.0%Unchanged
Meeder Asset Management Inc170$3.00K0.00%+118+226.9%Added
Cutler Group LP257$4.00K0.00%−2,352−90.1%Reduced
Signaturefd, LLC312$5.00K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.316$5.00K0.00%00.0%Unchanged
Macquarie Group Ltd514$8.00K0.00%00.0%Unchanged
Captrust Financial Advisors687$11.0K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.870$13.0K0.00%+111+14.6%Added
Simplex Trading, LLC960$15.0K0.00%−13,557−93.4%Reduced
Geneos Wealth Management Inc.1,429$22.0K0.00%00.0%Unchanged
Walleye Trading LLC1,706$27.0K0.00%−19,608−92.0%Reduced
BDO Wealth Advisors, LLC2,661$42.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)3,024$48.0K0.00%−305−9.2%Reduced
Royal Bank of Canada3,233$51.0K0.00%+1,319+68.9%Added
Ameritas Investment Partners, Inc.3,798$59.0K0.00%00.0%Unchanged
Public Employees Retirement System of Ohio4,666$73.0K0.00%+672+16.8%Added
Nisa Investment Advisors, LLC4,950$78.0K0.00%00.0%Unchanged
Pinz Capital Management, LP6,200$97.0K0.03%−1,300−17.3%Reduced
Mutual of America Capital Management LLC6,568$103.0K0.00%+444+7.3%Added
Zurcher Kantonalbank (Zurich Cantonalbank)6,830$107.0K0.00%00.0%Unchanged
Metropolitan Life Insurance Co9,669$151.4K0.00%−2,808−22.5%Reduced
Trexquant Investment LP10,551$165.0K0.01%+10,551New
Teachers Retirement System of the State of Kentucky10,700$168.0K0.00%00.0%Unchanged
Arizona State Retirement System12,452$195.0K0.00%−883−6.6%Reduced
XTX Topco Ltd12,461$195.0K0.07%+12,461New
ProShare Advisors LLC13,061$205.0K0.00%−409−3.0%Reduced
New York State Teachers Retirement System14,430$226.0K0.00%00.0%Unchanged
regents capital Ltd14,500$227.0K0.35%+4,200+40.8%Added
Bank of Montreal14,689$230.0K0.00%+3,302+29.0%Added
ExodusPoint Capital Management, LP16,004$251.0K0.00%−8,388−34.4%Reduced
Susquehanna International Group, LLP16,270$255.0K0.00%−22,490−58.0%Reduced
State of Tennessee, Treasury Department16,343$256.0K0.00%00.0%Unchanged
MetLife Investment Management16,935$265.2K0.00%+4,482+36.0%Added
Maven Securities LTD16,961$266.0K0.03%00.0%Unchanged
Oregon Public Employees Retirement Fund18,882$296.0K0.00%00.0%Unchanged
Voya Investment Management LLC19,039$298.0K0.00%−1,790−8.6%Reduced
Alpine Global Management, LLC20,077$314.0K0.04%+4,278+27.1%Added
Dynamic Technology Lab Private Ltd20,130$315.0K0.03%+9,947+97.7%Added
Louisiana State Employees Retirement System20,800$326.0K0.01%00.0%Unchanged
State Board of Administration of Florida Retirement System20,940$328.0K0.00%+2,007+10.6%Added
Mraz, Amerine & Associates, Inc.21,100$330.0K0.09%00.0%Unchanged
Redwood Investment Management, LLC21,318$334.0K0.05%+93+0.4%Added
Amalgamated Bank21,686$340.0K0.00%+21,686New
BNP Paribas Arbitrage, SA21,895$342.9K0.00%−2,101−8.8%Reduced
Clear Harbor Asset Management, LLC22,680$355.0K0.04%−45,220−66.6%Reduced
Private Advisor Group, LLC25,077$393.0K0.00%+179+0.7%Added
Manufacturers Life Insurance Company, The25,625$401.0K0.00%+328+1.3%Added
Two Sigma Advisers, LP26,700$418.0K0.00%−28,600−51.7%Reduced
SEI Investments Co27,150$425.0K0.00%+4,300+18.8%Added
Boothbay Fund Management, LLC27,500$431.0K0.02%−189−0.7%Reduced
Raymond James Financial Services Advisors, Inc.28,415$445.0K0.00%+800+2.9%Added
Alliancebernstein L.P.29,030$455.0K0.00%−6,700−18.8%Reduced
American International Group, Inc.29,611$464.0K0.00%−625−2.1%Reduced
State of Alaska, Department of Revenue31,967$500.0K0.01%+935+3.0%Added
Susquehanna Fundamental Investments, LLC32,699$512.0K0.01%−8,965−21.5%Reduced
Texas Permanent School Fund34,427$539.0K0.01%+173+0.5%Added
Raffles Associates LP34,993$548.0K0.47%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys35,452$555.0K0.01%+92+0.3%Added
Alpha Paradigm Partners, LLC36,431$571.0K0.22%+36,431New
Comerica Bank43,253$591.0K0.00%−3,077−6.6%Reduced
Thrivent Financial for Lutherans37,766$591.0K0.00%+102+0.3%Added
Great West Life Assurance Co39,955$626.0K0.00%00.0%Unchanged
New York State Common Retirement Fund40,177$629.0K0.00%+377+0.9%Added
Price T Rowe Associates Inc42,241$661.0K0.00%−7,067−14.3%Reduced
UBS Asset Management Americas Inc47,069$737.1K0.00%+3,469+8.0%Added
Prudential Financial Inc48,227$755.0K0.00%−3,013−5.9%Reduced
Verition Fund Management LLC53,000$830.0K0.01%−19,048−26.4%Reduced
Royce & Associates LP53,000$830.0K0.01%00.0%Unchanged
Tudor Investment Corp Et Al56,740$889.0K0.02%+2,112+3.9%Added
Ensign Peak Advisors, Inc57,500$900.0K0.00%00.0%Unchanged
Gsa Capital Partners LLP58,189$911.0K0.10%+58,189New
Brookfield Asset Management Inc.60,000$940.0K0.00%+60,000New
California State Teachers Retirement System62,584$980.0K0.00%−5,676−8.3%Reduced
D. E. Shaw & Co., Inc.68,998$1.08M0.00%−45,712−39.9%Reduced
Millennium Management LLC69,388$1.09M0.00%−34,106−33.0%Reduced
UBS Group AG70,503$1.10M0.00%−19,487−21.7%Reduced
Parametric Portfolio Associates LLC83,010$1.30M0.00%+8,417+11.3%Added
Bluefin Capital Management, LLC84,731$1.33M0.09%+84,731New
Legal & General Group Plc97,790$1.53M0.00%−30,002−23.5%Reduced
Swiss National Bank101,000$1.58M0.00%−2,800−2.7%Reduced
Citadel Advisors LLC104,866$1.64M0.00%+12,237+13.2%Added
Bank of America Corp106,634$1.67M0.00%−24,701−18.8%Reduced
Quinn Opportunity Partners LLC128,701$2.02M0.13%−8,000−5.9%Reduced
Wells Fargo & Company133,925$2.10M0.00%−13,728−9.3%Reduced
Credit Suisse AG134,809$2.11M0.00%−16,842−11.1%Reduced
Jacobs Asset Management, LLC150,000$2.16M0.81%00.0%Unchanged
Rhumbline Advisers146,588$2.30M0.00%−6,574−4.3%Reduced
Public Sector Pension Investment Board155,451$2.43M0.02%00.0%Unchanged
Invesco Ltd.179,964$2.82M0.00%+18,564+11.5%Added
Nuveen Asset Management, LLC192,577$3.02M0.00%−9,482−4.7%Reduced