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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, Q1 2022

Institutional positions in Octave Specialty Group Inc as of Mar 31, 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
150
+15 vs. Q4 2021
Shares held
37.8M
+436.0K (+1.2%) vs. Q4 2021
Total value
$392.1M
−$206.7M (−34.5%) vs. Q4 2021
New holders
29
56 more added
Sold out
14
47 more reduced

Compare with Q4 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 holdersQ1 2022: 150 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 heldQ1 2022: $392.1M
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, Q1 2022

Shares, value and share of portfolio for each institution holding Octave Specialty Group Inc; share changes are against Q4 2021.

Institutions holding OSG in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.6,358,331$66.1M0.00%−95,253−1.5%Reduced
Vanguard Group Inc5,159,157$53.7M0.00%+177,767+3.6%Added
FMR LLC2,060,440$21.4M0.00%+1800.0%Added
CQS (US), LLC2,050,000$21.3M1.48%+160,000+8.5%Added
State Street Corp1,619,691$16.8M0.00%+42,833+2.7%Added
Dimensional Fund Advisors LP1,566,259$16.3M0.01%+91,106+6.2%Added
Goldman Sachs Group Inc1,381,884$14.4M0.00%−580,827−29.6%Reduced
Healthcare of Ontario Pension Plan Trust Fund1,336,800$13.9M0.05%+592,305+79.6%Added
Morgan Stanley1,128,833$11.7M0.00%−128,301−10.2%Reduced
Boussard & Gavaudan Investment Management LLP1,112,712$11.5M1.86%+12,326+1.1%Added
Repertoire Partners LP1,007,002$10.5M4.93%+1,006,902+1,006,902.0%Added
Bracebridge Capital, LLC799,234$8.31M2.86%00.0%Unchanged
Geode Capital Management, LLC742,911$7.73M0.00%−18,133−2.4%Reduced
Barclays PLC698,033$7.26M0.01%−22,590−3.1%Reduced
Charles Schwab Investment Management Inc648,776$6.75M0.00%+22,055+3.5%Added
Hotchkis & Wiley Capital Management LLC618,741$6.43M0.02%+147,724+31.4%Added
UBS Group AG551,993$5.74M0.00%+541,367+5,094.7%Added
Northern Trust Corp515,659$5.36M0.00%−14,932−2.8%Reduced
Bank of New York Mellon Corp438,725$4.56M0.00%−8,616−1.9%Reduced
JPMorgan Chase & Co383,886$3.99M0.00%−251,585−39.6%Reduced
Gator Capital Management, LLC315,286$3.28M2.40%+39,000+14.1%Added
D. E. Shaw & Co., Inc.306,235$3.19M0.00%+151,131+97.4%Added
Principal Financial Group Inc305,438$3.18M0.00%−3,114−1.0%Reduced
Ameriprise Financial Inc263,559$2.74M0.00%+15,610+6.3%Added
Harbor Advisors LLC251,382$2.61M0.54%−10,000−3.8%Reduced
Deutsche Bank AG247,784$2.58M0.00%+40,575+19.6%Added
Two Seas Capital LP233,457$2.43M2.03%+45,000+23.9%Added
Invesco Ltd.226,859$2.36M0.00%+50,695+28.8%Added
Nuveen Asset Management, LLC250,775$2.25M0.00%+31,766+14.5%Added
HSBC Holdings PLC193,374$1.98M0.00%+30,820+19.0%Added
Quinn Opportunity Partners LLC190,000$1.98M0.12%+74,000+63.8%Added
Citadel Advisors LLC186,667$1.94M0.00%−201,549−51.9%Reduced
Canada Pension Plan Investment Board184,000$1.91M0.00%−43,000−18.9%Reduced
Engineers Gate Manager LP176,008$1.83M0.07%+133,743+316.4%Added
Brookfield Asset Management Inc.150,000$1.56M0.01%00.0%Unchanged
Public Sector Pension Investment Board147,671$1.54M0.01%−113,780−43.5%Reduced
Verition Fund Management LLC138,000$1.44M0.03%+87,000+170.6%Added
Wells Fargo & Company135,873$1.41M0.00%−20,539−13.1%Reduced
Bank of America Corp133,783$1.39M0.00%−6,998−5.0%Reduced
Rhumbline Advisers131,313$1.37M0.00%−458−0.3%Reduced
Interval Partners, LP130,438$1.36M0.10%+4,348+3.4%Added
Norges Bank126,300$1.31M0.00%−103,086−44.9%Reduced
Susquehanna International Group, LLP125,965$1.31M0.00%+58,554+86.9%Added
Tudor Investment Corp Et Al117,606$1.22M0.03%+3,558+3.1%Added
Millennium Management LLC113,455$1.18M0.00%+113,455New
Legal & General Group Plc109,567$1.14M0.00%−1,012−0.9%Reduced
Swiss National Bank109,500$1.14M0.00%+8,500+8.4%Added
Jane Street Group, LLC107,377$1.12M0.00%+72,351+206.6%Added
Bank of Montreal112,716$1.08M0.00%+49,933+79.5%Added
Salzhauer Michael95,761$996.0K0.44%+15,077+18.7%Added
Ergoteles LLC88,251$918.0K0.03%+88,251New
ExodusPoint Capital Management, LP79,679$829.0K0.01%+17,678+28.5%Added
LPL Financial LLC77,533$806.0K0.00%+7,968+11.5%Added
Dynamic Technology Lab Private Ltd71,902$748.0K0.09%+46,965+188.3%Added
Credit Suisse AG61,939$644.0K0.00%−89,332−59.1%Reduced
Cubist Systematic Strategies, LLC61,302$638.0K0.01%+22,501+58.0%Added
California State Teachers Retirement System59,109$615.0K0.00%−4,459−7.0%Reduced
PDT Partners, LLC58,380$607.0K0.05%+58,380New
State of Wisconsin Investment Board54,600$568.0K0.00%+54,600New
Royce & Associates LP53,000$551.0K0.00%00.0%Unchanged
Yousif Capital Management, LLC52,667$548.0K0.01%+10,315+24.4%Added
Exchange Traded Concepts, LLC52,228$543.0K0.01%+52,228New
Prudential Financial Inc47,772$497.0K0.00%−600−1.2%Reduced
UBS Asset Management Americas Inc47,069$489.5K0.00%00.0%Unchanged
Trexquant Investment LP45,439$473.0K0.02%+21,107+86.7%Added
Price T Rowe Associates Inc45,405$472.0K0.00%+931+2.1%Added
Schonfeld Strategic Advisors LLC43,600$453.0K0.01%−78,300−64.2%Reduced
Paloma Partners Management Co41,389$430.0K0.03%+41,389New
Great West Life Assurance Co39,955$427.0K0.00%00.0%Unchanged
Comerica Bank49,987$422.0K0.00%+10,010+25.0%Added
Citigroup Inc40,226$418.0K0.00%+4,960+14.1%Added
Redwood Investment Management, LLC40,000$416.0K0.06%+19,715+97.2%Added
Ensign Peak Advisors, Inc39,900$415.0K0.00%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys39,919$415.0K0.00%+4,922+14.1%Added
HBK Investments L P38,270$398.0K0.01%+38,270New
Thrivent Financial for Lutherans37,695$392.0K0.00%+120.0%Added
Two Sigma Advisers, LP37,400$389.0K0.00%+2,700+7.8%Added
Parametric Portfolio Associates LLC36,388$378.0K0.00%−28,739−44.1%Reduced
Bluefin Capital Management, LLC36,005$374.0K0.06%−72,398−66.8%Reduced
New York State Common Retirement Fund33,100$344.0K0.00%−365−1.1%Reduced
Texas Permanent School Fund32,827$341.0K0.00%−703−2.1%Reduced
State of Alaska, Department of Revenue32,207$334.0K0.00%−580−1.8%Reduced
SEI Investments Co31,750$330.0K0.00%+4,600+16.9%Added
Boothbay Fund Management, LLC27,500$286.0K0.01%−2,053−6.9%Reduced
FourWorld Capital Management LLC27,500$286.0K0.18%+27,500New
American International Group, Inc.26,130$272.0K0.00%−1,600−5.8%Reduced
Raymond James Financial Services Advisors, Inc.25,865$269.0K0.00%−1,100−4.1%Reduced
Alliancebernstein L.P.25,079$261.0K0.00%+66+0.3%Added
AQR Capital Management LLC25,025$260.0K0.00%+25,025New
MetLife Investment Management24,566$255.5K0.00%+8,759+55.4%Added
Mraz, Amerine & Associates, Inc.21,930$228.0K0.05%+1,080+5.2%Added
State Board of Administration of Florida Retirement System20,940$218.0K0.00%00.0%Unchanged
Amalgamated Bank20,521$213.0K0.00%−1,232−5.7%Reduced
Amalgamated Financial Corp.20,521$213.0K0.00%+20,521New
HAP Trading, LLC19,673$205.0K0.02%+19,673New
American Century Companies Inc19,508$203.0K0.00%+19,508New
Manufacturers Life Insurance Company, The19,136$199.0K0.00%+19,136New
Clear Harbor Asset Management, LLC19,000$198.0K0.02%+19,000New
Voya Investment Management LLC18,778$195.0K0.00%+787+4.4%Added
Maryland State Retirement & Pension System18,569$193.0K0.01%+369+2.0%Added