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Octave Specialty Group (OSG) Institutional Ownership

Octave Specialty Group logo
$4.80 +0.10 (+2.02%)
As of 03:08 PM Eastern
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Institutional Ownership Changes (13F Filings) for Octave Specialty Group (NYSE:OSG)

Current
Institutional Ownership
Percentage
80.92%
Number of
Institutional Buyers
(last 12 months)
93
Total
Institutional Inflows
(last 12 months)
$200.59M
Number of
Institutional Sellers
(last 12 months)
20
Total
Institutional Outflows
(last 12 months)
$18.70M
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OSG Institutional Buying and Selling by Quarter

Octave Specialty Group Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/6/2026 Bank of New York Mellon Corp134,966$842K0.0%N/A0.300%
7/2/2026 Versant Capital Management Inc8,360$52K0.0%N/A0.019%
6/16/2026Empowered Funds LLC114,004$530K0.0%-28.9%0.253%
6/3/2026 Parallel Advisors LLC6,473$30K0.0%+4,186.8%0.014%
5/19/2026Bank of America Corp DE256,110$1.19M0.0%-22.6%0.569%
5/18/2026Empowered Funds LLC114,004$530K0.0%-28.9%0.253%
5/16/2026Quantinno Capital Management LP48,700$226K0.0%-38.1%0.108%
5/16/2026Lazard Asset Management LLC29,220$136K0.0%N/A0.065%
5/15/2026RIHO Partners LLC546,569$2.54M1.6%N/A1.214%
5/14/2026Renaissance Technologies LLC227,726$1.06M0.0%+805.2%0.506%
5/14/2026Public Employees Retirement System of Ohio68,805$320K0.0%N/A0.153%
5/14/2026Sei Investments Co.156,078$726K0.0%+133.9%0.347%
5/14/2026 Walleye Capital LLC67,134$312K0.0%-47.7%0.149%
5/14/2026 State of Wyoming28,784$134K0.0%+49.5%0.064%
5/7/2026 Commonwealth Financial Services LLC29,008$135K0.0%N/A0.064%
5/7/2026 Dimensional Fund Advisors LP1,310,132$6.09M0.0%-22.3%2.911%
5/7/2026 Parallel Advisors LLC6,473$30K0.0%+4,186.8%0.014%
5/6/2026Aire Advisors LLC13,446$63K0.0%N/A0.030%
5/5/2026 Bank of New York Mellon Corp130,471$607K0.0%-5.6%0.290%
4/30/2026Hsbc Holdings PLC102,430$476K0.0%+11.3%0.228%
4/25/2026 Able Wealth Management LLC15,246$71K0.0%N/A0.034%
4/17/2026 Anchyra Partners LLC16,328$76K0.0%N/A0.036%
4/16/2026 SG Americas Securities LLC18,817$87K0.0%N/A0.042%
4/16/2026 Quotient Wealth Partners LLC16,896$79K0.0%N/A0.038%
3/20/2026Hsbc Holdings PLC92,040$713K0.0%N/A0.205%
3/12/2026PEAK6 LLC30,478$237K0.0%N/A0.068%
2/23/2026Virtu Financial LLC19,235$150K0.0%N/A0.044%
2/19/2026Invesco Ltd.156,504$1.22M0.0%N/A0.357%
2/18/2026Empowered Funds LLC160,387$1.25M0.0%N/A0.366%
2/18/2026XTX Topco Ltd31,058$242K0.0%N/A0.071%
2/18/2026 nVerses Capital LLC12,181$95K0.2%N/A0.028%
2/18/2026 Quadrature Capital Ltd21,219$165K0.0%N/A0.048%
2/18/2026Oxford Asset Management LLP25,413$198K0.1%N/A0.058%
2/18/2026Millennium Management LLC303,282$2.36M0.0%N/A0.692%
2/18/2026Engineers Gate Manager LP81,585$635K0.0%N/A0.186%
2/18/2026Balyasny Asset Management L.P.42,917$334K0.0%N/A0.098%
2/18/2026Bridgeway Capital Management LLC245,387$1.91M0.0%N/A0.560%
2/17/2026Schonfeld Strategic Advisors LLC169,824$1.32M0.0%N/A0.388%
2/17/2026AQR Capital Management LLC70,128$546K0.0%N/A0.160%
2/17/2026Jump Financial LLC85,213$663K0.0%N/A0.195%
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2/17/2026Price T Rowe Associates Inc. MD70,941$552K0.0%N/A0.162%
2/17/2026 Russell Investments Group Ltd.346,258$2.69M0.0%N/A0.790%
2/17/2026Kemnay Advisory Services Inc.8,059$63K0.0%N/A0.018%
2/17/2026ExodusPoint Capital Management LP109,765$854K0.0%N/A0.251%
2/16/2026Wolf Hill Capital Management LP1,888,973$14.70M1.6%N/A4.312%
2/16/2026Verition Fund Management LLC17,500$136K0.0%N/A0.040%
2/16/2026PEAK6 LLC30,478$237K0.0%N/A0.070%
2/16/2026Barclays PLC680,441$5.29M0.0%N/A1.553%
2/13/2026The Manufacturers Life Insurance Company 12,594$98K0.0%N/A0.029%
2/13/2026DLD Asset Management LP60,421$470K0.0%N/A0.138%
2/13/2026Gendell Jeffrey L1,569,472$12.21M0.2%N/A3.582%
2/13/2026Quarry LP15,103$118K0.0%N/A0.034%
2/13/2026Jacobs Levy Equity Management Inc.237,185$1.85M0.0%N/A0.541%
2/13/2026 Essex Investment Management Co. LLC410,822$3.20M0.5%N/A0.938%
2/13/2026Charles Schwab Investment Management Inc.361,424$2.81M0.0%N/A0.825%
2/13/2026 Police & Firemen s Retirement System of New Jersey11,825$92K0.0%N/A0.027%
2/13/2026 State Street Corp943,368$7.34M0.0%N/A2.153%
2/13/2026Wells Fargo & Company MN85,734$667K0.0%N/A0.196%
2/12/2026 Third Avenue Management LLC782,093$6.09M1.1%N/A1.785%
2/12/2026MetLife Investment Management LLC19,956$155K0.0%N/A0.046%
2/12/2026 State Board of Administration of Florida Retirement System12,630$98K0.0%N/A0.029%
2/12/2026Renaissance Technologies LLC25,158$196K0.0%N/A0.057%
2/12/2026 Dimensional Fund Advisors LP1,685,627$13.11M0.0%N/A3.848%
2/12/2026 Federated Hermes Inc.4,420$34K0.0%N/A0.010%
2/12/2026Cruiser Capital Advisors LLC107,140$834K0.7%N/A0.245%
2/12/2026 New York State Common Retirement Fund10,073$78K0.0%N/A0.023%
2/12/2026 Nuveen LLC810,279$6.30M0.0%N/A1.850%
2/11/2026Empowered Funds LLC160,387$1.25M0.0%N/A0.366%
2/11/2026 Metis Global Partners LLC25,136$196K0.0%N/A0.057%
2/11/2026 Deutsche Bank AG25,647$200K0.0%N/A0.059%
2/11/2026 Fox Run Management L.L.C.42,354$330K0.1%N/A0.097%
2/11/2026Cerity Partners LLC11,332$88K0.0%N/A0.026%
2/11/2026Franklin Resources Inc.11,959$93K0.0%N/A0.027%
2/11/2026Arrowpoint Investment Partners Singapore Pte. Ltd.203,011$1.58M0.2%N/A0.463%
2/11/2026 State of Wyoming19,249$150K0.0%N/A0.044%
2/10/2026 CIBC Asset Management Inc23,893$186K0.0%N/A0.055%
2/10/2026Goldman Sachs Group Inc.779,975$6.07M0.0%N/A1.780%
2/10/2026 AXQ Capital LP40,374$314K0.1%N/A0.092%
2/10/2026 Norges Bank75,000$584K0.0%N/A0.171%
2/10/2026 Intech Investment Management LLC21,038$164K0.0%N/A0.048%
2/9/2026 Geode Capital Management LLC1,024,547$7.97M0.0%N/A2.339%
2/6/2026 Legato Capital Management LLC132,620$1.03M0.1%N/A0.303%
2/6/2026 Mraz Amerine & Associates Inc.18,950$147K0.0%N/A0.043%
2/6/2026 Prescott Group Capital Management L.L.C.893,517$6.95M0.6%N/A2.040%
2/4/2026 KLCM Advisors Inc.23,900$186K0.0%N/A0.055%
2/3/2026 Western Standard LLC2,504,627$19.49M9.0%N/A5.717%
2/2/2026 VELA Investment Management LLC178,752$1.39M0.3%N/A0.408%
1/30/2026 Harbor Advisors LLC196,382$1.53M0.2%N/A0.448%
1/29/2026Inscription Capital LLC10,800$84K0.0%N/A0.025%
1/29/2026 Calamos Advisors LLC49,089$382K0.0%N/A0.112%
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1/28/2026 Crown Wealth Group LLC11,162$87K0.0%N/A0.025%
1/26/2026CWM LLC5,598$44K0.0%N/A0.013%
1/9/2026 SG Americas Securities LLC403,237$3.64M0.0%+434.7%0.920%
1/1/2026 JPMorgan Chase & Co.34,555$288K0.0%+10.6%0.079%
1/1/2026Tudor Investment Corp ET AL125,155$1.04M0.0%-59.1%0.286%
12/9/2025Tudor Investment Corp ET AL125,155$1.04M0.0%-59.1%0.286%
11/17/2025Verition Fund Management LLC20,533$171K0.0%-47.8%0.047%
11/17/2025Prelude Capital Management LLC17,878$149K0.0%N/A0.041%
11/17/2025Millennium Management LLC700,895$5.85M0.0%-29.6%1.600%
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.20,052$167K0.0%-23.7%0.046%


OSG Institutional Ownership - Frequently Asked Questions

During the previous two years, 174 institutional investors and hedge funds held shares of Octave Specialty Group. The most heavily invested institutionals were Glazer Capital LLC ($28.95M), Vanguard Group Inc. ($21.31M), Western Standard LLC ($19.49M), FMR LLC ($19.42M), Continental General Insurance Co. ($17.25M), Wolf Hill Capital Management LP ($14.70M), and Gendell Jeffrey L ($12.21M).Learn more on Octave Specialty Group's institutional investors.

80.92% of Octave Specialty Group's stock is owned by institutional investors. Learn more on OSG's institutional investor holdings.

Of the 156 institutional investors that purchased Octave Specialty Group's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Western Standard LLC ($5.60M), Glazer Capital LLC ($3.41M), Wolf Hill Capital Management LP ($3.35M), Gendell Jeffrey L ($2.17M), Continental General Insurance Co. ($2.07M), Dimensional Fund Advisors LP ($1.69M), and Prescott Group Capital Management L.L.C. ($1.59M).

Institutional investors have bought a total of 25,602,937 shares in the last 24 months. This purchase volume represents approximately $200.59M in transactions.

Of the 19 institutional investors that sold Octave Specialty Group's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Dimensional Fund Advisors LP ($630.19K), Squarepoint Ops LLC ($424.15K), Tudor Investment Corp ET AL ($361.09K), Millennium Management LLC ($295.15K), Y Intercept Hong Kong Ltd ($200.21K), Empowered Funds LLC ($92.77K), and Bank of America Corp DE ($92.16K).

Institutional investors have sold a total of 2,492,387 shares in the last 24 months. This volume of shares sold represents approximately $18.70M in transactions.


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Institutional ownership data for NYSE:OSG is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/6/2026. New 13F filings are added each quarter as they're published.
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