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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, Q3 2022

Institutional positions in Octave Specialty Group Inc as of Sep 30, 2022. 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
154
+13 vs. Q2 2022
Shares held
31.4M
−2.72M (−8.0%) vs. Q2 2022
Total value
$400.7M
+$14.1M (+3.7%) vs. Q2 2022
New holders
28
46 more added
Sold out
15
54 more reduced

Compare with Q2 2022: 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 holdersQ3 2022: 154 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 heldQ3 2022: $400.7M
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, Q3 2022

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q2 2022.

Institutions holding OSG in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Tudor Investment Corp Et Al64,878$827.0K0.02%+23,109+55.3%Added
Quinn Opportunity Partners LLC65,280$832.3K0.10%−77,813−54.4%Reduced
Jefferies Group LLC65,564$835.9K0.02%+65,564New
Salzhauer Michael66,268$845.0K0.54%−64,793−49.4%Reduced
Caxton Associates LP66,314$846.0K0.15%+8,254+14.2%Added
Catalyst Capital Advisors LLC76,690$978.0K0.04%−20,500−21.1%Reduced
LPL Financial LLC80,033$1.02M0.00%+1,500+1.9%Added
Public Sector Pension Investment Board82,418$1.05M0.01%−958−1.1%Reduced
Graham Capital Management, L.P.82,846$1.06M0.05%−2,459−2.9%Reduced
Parallax Volatility Advisers, L.P.86,661$1.10M0.02%+86,661New
Bank of America Corp86,904$1.11M0.00%−18,698−17.7%Reduced
Simplex Trading, LLC97,854$1.25M0.05%+30,525+45.3%Added
Healthcare of Ontario Pension Plan Trust Fund101,325$1.29M0.01%−5,675−5.3%Reduced
Russell Investments Group, Ltd.104,566$1.33M0.00%+104,566New
Walleye Trading LLC104,964$1.34M0.04%+104,964New
Swiss National Bank106,800$1.36M0.00%−2,700−2.5%Reduced
Legal & General Group Plc107,836$1.38M0.00%+1,199+1.1%Added
Cubist Systematic Strategies, LLC116,336$1.48M0.01%+106,074+1,033.7%Added
Algert Global LLC126,154$1.61M0.10%+30,635+32.1%Added
Jane Street Group, LLC127,853$1.63M0.00%+38,990+43.9%Added
Interval Partners, LP138,542$1.77M0.10%−15,000−9.8%Reduced
Rhumbline Advisers139,207$1.77M0.00%+4,820+3.6%Added
Verition Fund Management LLC140,210$1.79M0.02%+15,102+12.1%Added
BNP Paribas Arbitrage, SA140,316$1.79M0.00%+126,622+924.7%Added
Citadel Advisors LLC165,712$2.11M0.00%−57,188−25.7%Reduced
Deutsche Bank AG167,679$2.14M0.00%−456,737−73.1%Reduced
D. E. Shaw & Co., Inc.177,181$2.26M0.00%+43,839+32.9%Added
Wells Fargo & Company178,263$2.27M0.00%+1,699+1.0%Added
Ameriprise Financial Inc180,005$2.29M0.00%−111,674−38.3%Reduced
Bank of Montreal186,633$2.40M0.00%−46,309−19.9%Reduced
HSBC Holdings PLC239,621$3.03M0.01%−3,028−1.2%Reduced
Harbor Advisors LLC251,382$3.21M0.86%00.0%Unchanged
Invesco Ltd.254,776$3.25M0.00%−10,661−4.0%Reduced
Principal Financial Group Inc277,046$3.53M0.00%−763−0.3%Reduced
Nuveen Asset Management, LLC311,939$3.98M0.00%+142,403+84.0%Added
Two Seas Capital LP325,526$4.15M4.76%+57,069+21.3%Added
Morgan Stanley333,547$4.25M0.00%−98,801−22.9%Reduced
JPMorgan Chase & Co343,018$4.37M0.00%+309,574+925.6%Added
Gator Capital Management, LLC376,265$4.80M4.01%+38,779+11.5%Added
Bank of New York Mellon Corp405,245$5.17M0.00%+4,715+1.2%Added
Northern Trust Corp490,282$6.25M0.00%−13,156−2.6%Reduced
CQS (US), LLC566,717$7.23M0.88%−840,528−59.7%Reduced
Barclays PLC589,573$7.52M0.01%−55,620−8.6%Reduced
Charles Schwab Investment Management Inc682,201$8.70M0.00%−11,055−1.6%Reduced
Goldman Sachs Group Inc692,557$8.83M0.00%−674,743−49.3%Reduced
Geode Capital Management, LLC798,278$10.2M0.00%−2,961−0.4%Reduced
Bracebridge Capital, LLC799,234$10.2M3.73%00.0%Unchanged
Boussard & Gavaudan Investment Management LLP952,957$12.3M1.74%−159,755−14.4%Reduced
Repertoire Partners LP1,107,966$14.1M10.26%−88,100−7.4%Reduced
Dimensional Fund Advisors LP1,480,809$18.9M0.01%−81,148−5.2%Reduced
State Street Corp1,618,988$20.6M0.00%−22,129−1.3%Reduced
FMR LLC1,990,160$25.4M0.00%−70,100−3.4%Reduced
Vanguard Group Inc4,752,430$60.6M0.00%+241,449+5.4%Added
BlackRock Inc.6,491,445$82.8M0.00%−188,588−2.8%Reduced
Hotchkis & Wiley Capital Management LLC0$00.00%−762,731−100.0%Sold out
Wolverine Trading, LLC0$00.00%−169,360−100.0%Sold out
Brookfield Asset Management Inc.0$00.00%−150,000−100.0%Sold out
APG Asset Management N.V.0$00.00%−81,700−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−34,527−100.0%Sold out
Ergoteles LLC0$00.00%−25,241−100.0%Sold out
SEI Investments Co0$00.00%−23,950−100.0%Sold out
Engineers Gate Manager LP0$00.00%−21,093−100.0%Sold out
Man Group plc0$00.00%–Sold out
Atom Investors LP0$00.00%−12,656−100.0%Sold out
Blueshift Asset Management, LLC0$00.00%−11,961−100.0%Sold out
AQR Capital Management LLC0$00.00%−10,611−100.0%Sold out
Captrust Financial Advisors0$00.00%−2,317−100.0%Sold out
Geneos Wealth Management Inc.0$00.00%−1,429−100.0%Sold out
Graves-Light Private Wealth Management, Inc.0$00.00%−35−100.0%Sold out