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Disclosery

OSG OCTAVE SPECIALTY GROUP INC

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COM NEW (common), issuer CIK 874501

147 managers (148 13F filers) reported a position in OSG shares at 2025-06-30, 36,967,340 shares in all. 29 filers opened a position and 59 filers sold out during the quarter.

Managers
147
13F filers
148
New
29
Added
47
Reduced
50
Sold out
59
Shares held by filers
36,967,340

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
LeBlanc Claudedirector, officer (Chief Executive Officer)2026-10-03-11,638 F$4.6Form 4
LeBlanc Claudedirector, officer (Chief Executive Officer)2026-10-03+11,628 MForm 4
LeBlanc Claudedirector, officer (Chief Executive Officer)2026-10-03-8,421 F$4.6Form 4
LeBlanc Claudedirector, officer (Chief Executive Officer)2026-10-03+15,229 MForm 4
Smith R Sharonofficer (Exec VP & Group COO)2026-10-03-2,539 F$4.6Form 4
Smith R Sharonofficer (Exec VP & Group COO)2026-10-03+2,539 MForm 4
Trick Davidofficer (Exec VP, CFO & Treasurer)2026-10-03-3,047 F$4.6Form 4
Trick Davidofficer (Exec VP, CFO & Treasurer)2026-10-03+3,047 MForm 4

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.4,588,054$32.6M<0.01%-306,62613F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC2,568,440$18.2M<0.01%-92,44213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,395,737$17M<0.01%-161,14313F-HRTimelineGroup
FMR LLCin group FMR LLC1,532,645$10.9M<0.01%-3,02613F-HRTimelineGroup
CONTINENTAL GENERAL INSURANCE COin group CONTINENTAL GENERAL INSURANCE…1,218,349$8.65M2.22%new13F-HRTimelineGroup
GENDELL JEFFREY Lin group GENDELL JEFFREY L1,198,420$8.51M0.23%+596,13413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,122,616$7.97M<0.01%+27,67013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC1,118,761$7.94M0.01%+16,03913F-HRTimelineGroup
Bain Capital Credit, LPin group Bain Capital Life Sciences In…1,108,012$7.87M2.86%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC996,041$7.07M0.01%+487,35513F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP958,855$6.81M<0.01%-73,43913F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…940,583$6.68M0.01%-239,97413F-HRTimelineGroup
Prescott Group Capital Management, L.L.…875,977$6.22M0.73%+433,61313F-HRTimeline
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC793,500$5.63M0.02%+235,82013F-HRTimeline
Repertoire Partners LP721,188$5.12M86.09%-452,68613F-HRTimeline
Wolf Hill Capital Management, LPin group Wolf Hill Capital Management,…693,444$4.92M0.41%013F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP648,155$4.6M0.01%+442,75013F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\645,360$4.58M<0.01%-77,89013F-HRTimelineGroup
THIRD AVENUE MANAGEMENT LLC603,391$4.28M0.88%+236,93013F-HRTimeline
Bracebridge Capital, LLC579,234$4.11M2.19%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC512,443$3.64M0.01%-211,65113F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC479,383$3.4M<0.01%-200,79613F-HRTimelineGroup
Nuveen, LLCin group TIAA466,978$3.32M<0.01%+184,32113F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC466,369$3.31M0.01%+233,98613F-HR/ATimelineGroup
MORGAN STANLEYin group MORGAN STANLEY457,631$3.25M<0.01%-400,40913F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC454,827$3.23M<0.01%-34,91913F-HR/ATimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC438,335$3.11M<0.01%-417,92613F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP388,921$2.76M<0.01%-72,33513F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co387,959$2.75M<0.01%+9,19513F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding360,265$2.56M+129,078Timeline
Y-Intercept (Hong Kong) Ltd350,701$2.49M0.06%+204,25513F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.335,647$2.38M<0.01%-75,82313F-HRTimelineGroup
GROUP ONE TRADING LLC321,724$2.28M0.07%-19,74413F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC317,249$2.25M0.05%+12,12213F-HRTimeline
Trexquant Investment LP316,960$2.25M0.03%+155,86413F-HRTimeline
TUDOR INVESTMENT CORP ET AL305,702$2.17M0.02%+28,87313F-HRTimeline
IMMERSION CORP300,000$2.13M1.08%new13F-HRTimeline
Cubist Systematic Strategies, LLC299,948$2.13M0.02%+129,30513F-HRTimeline
Schonfeld Strategic Advisors LLC285,581$2.03M0.02%-236,90313F-HRTimeline
Empowered Funds, LLC207,249$1.47M0.02%+12,12213F-HRTimeline
Harbor Advisors LLC196,382$1.39M0.23%013F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding192,253$1.36M-105,245Timeline
RENAISSANCE TECHNOLOGIES LLC186,100$1.32M<0.01%+14,60013F-HRTimeline
Caption Management, LLC176,074$1.25M0.11%-187,00813F-HRTimeline
Invesco Ltd.in group Invesco Ltd.170,436$1.21M<0.01%-10,05913F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/166,265$1.18M<0.01%-17,37313F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC164,805$1.17M<0.01%+65,25313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp141,935$1.01M<0.01%-2,13813F-HRTimelineGroup
IMC-Chicago, LLC141,026$1M0.03%+46,22313F-HRTimeline
VELA Investment Management, LLC122,770$872K0.26%+30,35813F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS119,468$848K<0.01%+98,40213F-HRTimelineGroup
HRT FINANCIAL LP119,016$845K<0.01%-282,25613F-HRTimeline
Connor, Clark & Lunn Investment Managem…111,053$788K<0.01%+79,85413F-HRTimeline
Nebula Research & Development LLC107,124$761K0.06%+34,02213F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC97,348$675K<0.01%-118,08713F-HRTimelineGroup
NORGES BANK75,000$532K<0.01%-188,10013F-HRTimeline
RHUMBLINE ADVISERS74,916$532K<0.01%+5,37613F-HRTimeline
Empirical Finance, LLC72,182$512K0.03%new13F-HRTimeline
Public Sector Pension Investment Board72,000$511K<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN71,808$510K<0.01%+48713F-HRTimelineGroup
CAXTON ASSOCIATES LLP65,647$466K0.01%013F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC62,840$446K0.02%new13F-HRTimelineGroup
Aurelius Capital Management, LP60,546$430K2.92%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD59,544$423K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA52,209$371K<0.01%+49,19713F-HR/ATimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/52,205$371K<0.01%+3,33213F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC51,300$364K<0.01%new13F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…50,703$360K<0.01%-23,62813F-HRTimelineGroup
DLD Asset Management, LP50,000$355K0.04%new13F-HR/ATimeline
Centiva Capital, LP46,815$332K0.02%new13F-HRTimeline
Engineers Gate Manager LP46,607$331K<0.01%-82,90813F-HRTimeline
ExodusPoint Capital Management, LP46,074$327K<0.01%-46,96513F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding43,923$312K-114,040Timeline
FIRST CITIZENS BANK & TRUST CO43,210$307K0.01%+29,14013F-HRTimeline
Envestnet Portfolio Solutions, Inc.in group ENVESTNET ASSET MANAGEMENT INC41,667$296K<0.01%+29,14013F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC41,388$294K<0.01%+4,25013F-HRTimeline
Verition Fund Management LLC39,318$279K<0.01%-6313F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd38,524$274K0.01%-81,08313F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.37,922$269K0.04%-7,24913F-HRTimeline
Qube Research & Technologies Ltd37,584$267K<0.01%new13F-HRTimeline
ALLIANCEBERNSTEIN L.P.37,530$266K<0.01%+9,69013F-HRTimeline
AXQ CAPITAL, LP35,439$252K0.08%+7,69413F-HRTimeline
Point72 Asia (Singapore) Pte. Ltd.33,143$235K0.04%-11,94713F-HRTimeline
Graham Capital Management, L.P.31,418$223K0.01%new13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO31,231$222K<0.01%-32,18813F-HRTimelineGroup
SIMPLEX TRADING, LLC31,219$221K0.01%-99,45213F-HRTimeline
Quantinno Capital Management LP28,826$205K<0.01%new13F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…26,281$187K<0.01%-69613F-HRTimelineGroup
FJ Capital Management LLC24,677$175K0.02%new13F-HRTimeline
KLCM Advisors, Inc.24,000$170K0.02%013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO23,565$167K<0.01%+4,68913F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC23,031$164K<0.01%-25,38513F-HRTimelineGroup
Cresset Asset Management, LLC22,193$158K<0.01%013F-HR/ATimeline
SG Americas Securities, LLC21,642$154K<0.01%-14,55413F-HRTimeline
Gator Capital Management, LLC21,435$152K0.05%013F-HRTimeline
Creative Planningin group Creative Planning20,421$145K<0.01%new13F-HRTimelineGroup
Mraz, Amerine & Associates, Inc.18,850$134K0.02%-70013F-HRTimeline
Quantbot Technologies LP18,834$134K<0.01%-81,47413F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …17,993$128K<0.01%+1,61513F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd15,197$108K0.01%new13F-HRTimelineGroup
State of Wyoming14,501$103K0.01%-25713F-HRTimeline
Point72 Hong Kong Ltd14,151$100K0.01%new13F-HRTimeline
IEQ CAPITAL, LLC13,667$97K<0.01%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC12,946$91.9K<0.01%+25013F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…12,630$89.7K<0.01%013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC11,851$84.1K<0.01%new13F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources10,677$75.8K<0.01%-78713F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND10,073$71.5K<0.01%013F-HR/ATimeline
Police & Firemen's Retirement System of…9,202$65.3K<0.01%013F-HRTimeline
LM Asset Management Inc.6,000$42.6K0.04%new13F-HRTimeline
Point72 (DIFC) Ltd5,943$42.2K<0.01%-14,85613F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.5,231$37.1K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,583$32.5K<0.01%013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc4,305$30.6K<0.01%-39,23713F-HRTimelineGroup
CWM, LLCin group CWM, LLC3,962$28K<0.01%+3,95613F-HRTimelineGroup
Versant Capital Management, Inc1,619$11.5K<0.01%+1,60013F-HRTimeline
Quarry LP1,555$11K<0.01%new13F-HRTimeline
AMALGAMATED BANK1,567$11K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,510$10.7K<0.01%-1,83813F-HRTimelineGroup
Sterling Capital Management LLC1,220$8.66K<0.01%+43513F-HR/ATimeline
HARBOR CAPITAL ADVISORS, INC.1,124$8K<0.01%-25313F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,018$7.23K<0.01%+4813F-HRTimeline
GAMMA Investing LLC760$5.4K<0.01%+25013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…689$4.89K<0.01%+56213F-HRTimelineGroup
SBI Securities Co., Ltd.440$3.12K<0.01%+43013F-HRTimeline
Caitong International Asset Management …410$2.91K<0.01%+39713F-HRTimeline
Brooklyn Investment Group303$2.15K<0.01%-65713F-HR/ATimeline
Capital Analysts, LLCin group Capital Analysts, LLC325$2K<0.01%013F-HRTimelineGroup
CoreCap Advisors, LLC266$1.89K<0.01%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\227$1.61K<0.01%-1,14513F-HRTimelineGroup
IFP Advisors, Inc0$1.32K<0.01%013F-HRTimelineAmount filed as zero, left out of ratios.
DiNuzzo Private Wealth, Inc.177$1.26K<0.01%013F-HRTimeline
Glenmede Investment Management, LP161$1.14K<0.01%13F-HRTimeline
Allworth Financial LP137$973<0.01%+10813F-HRTimeline
SIGNATUREFD, LLC116$824<0.01%new13F-HRTimeline
Advisors Asset Management, Inc.102$724<0.01%new13F-HR/ATimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…101$718<0.01%new13F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…51$362<0.01%new13F-HRTimelineGroup
True Wealth Design, LLC35$249<0.01%+2213F-HRTimeline
ROTHSCHILD INVESTMENT LLC32$227<0.01%-11513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.26$184<0.01%-3213F-HR/ATimelineGroup
Legacy Investment Solutions, LLC25$178<0.01%13F-HRTimeline
Legacy Wealth Managment, LLC/IDin group Legacy Wealth Managment, LLC/…25$178<0.01%013F-HRTimelineGroup
Parallel Advisors, LLC15$107<0.01%new13F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/7$50<0.01%new13F-HR/ATimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC29$00%013F-HRTimelineGroupValue filed as zero, left out of ratios.
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

  • LeBlanc Claude acquired 6,798 OSG shares on 2026-10-03, Form 4 filed 2026-10-06. 0001628280-26-065277

    Accepted , ingested

  • Smith R Sharon reported transactions in OSG shares with no net change in a Form 4 filed 2026-10-06. 0001628280-26-065275

    Accepted , ingested

  • Trick David reported transactions in OSG shares with no net change in a Form 4 filed 2026-10-06. 0001628280-26-065273

    Accepted , ingested