Insider Transactions Reported by 18 Insiders of OCTAVE SPECIALTY GROUP INC

Symbol
OSG on NYSE
Location
New York, NY

Insiders trading volume in the past year

OCTAVE SPECIALTY GROUP INC executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Claude LeBlanc Chief Executive Officer, Director $12,805,425 +$740,330 +6.1% 03 Mar 2026
Stephen Michael Ksenak Sr. MD & General Counsel $3,295,978 29 Sep 2025
Jeffrey Scott Stein Director $3,099,894 +$96,900 +3.2% 01 Jan 2026
David Trick Exec VP, CFO & Treasurer $3,039,258 03 Mar 2026
R. Sharon Smith Exec VP & Group COO $2,209,663 +$205 +0.01% 03 Mar 2026
David Barranco Senior Managing Director $2,110,695 13 Mar 2025
Ian David Haft Director $2,108,287 01 Jan 2026
Michael D. Price Director $1,921,572 +$499,642 +35% 01 Jan 2026
Joan M. Lammtennant Director $1,698,670 01 Jan 2026
C. James Prieur Director $1,254,443 03 Jan 2023
David L. Herzog Director $1,236,728 03 Apr 2023
Lisa G. Iglesias Director $1,171,383 01 Jan 2026
Robert Bryan Eisman Sr. MD & CAO $1,101,028 13 Mar 2025
Alexander David Greene Director $988,617 12 May 2021
Daniel McGinnis Sr. MD & COO $688,752 29 Sep 2025
Kristi Ann Matus Director $656,896 01 Jan 2026
Cristina E. Ahn Chief Accounting Officer 29 Sep 2025
Lawrence F. Metz * Senior Managing Director and General Counsel 11 Dec 2025

Recent Insider Transactions by Companies or Individuals for OCTAVE SPECIALTY GROUP INC

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Claude LeBlanc OSG Common Stock Tax liability -1.01% -10,694 1,047,631 03 Mar 2026 Direct
Claude LeBlanc OSG Common Stock Options Exercise 2.37% 24,548 1,058,325 03 Mar 2026 Direct
Claude LeBlanc OSG Deferred Share Units Options Exercise 12.9% 22,582 197,543 03 Mar 2026 Direct
Claude LeBlanc OSG Restricted Stock Units Options Exercise -9.18% -47,130 466,487 03 Mar 2026 Direct
David Trick OSG Common Stock Tax liability -0.65% -1,715 260,631 03 Mar 2026 Direct
David Trick OSG Common Stock Options Exercise 0.66% 1,715 262,346 03 Mar 2026 Direct
David Trick OSG Deferred Share Units Options Exercise -21.1% -9,790 36,510 03 Mar 2026 Direct
David Trick OSG Restricted Stock Units Options Exercise -9.32% -11,505 111,934 03 Mar 2026 Direct
R. Sharon Smith OSG Common Stock Tax liability -1.02% -1,541 149,182 03 Mar 2026 Direct
R. Sharon Smith OSG Common Stock Options Exercise 1.03% 1,541 150,723 03 Mar 2026 Direct
R. Sharon Smith OSG Deferred Share Units Options Exercise -11.4% -8,720 67,486 03 Mar 2026 Direct
R. Sharon Smith OSG Restricted Stock Units Options Exercise -9.66% -10,261 95,939 03 Mar 2026 Direct
Claude LeBlanc AMBC Common Stock Purchase 1.17% $91,080 $7.59 12,000 1,033,777 02 Jan 2026 Direct
Lisa G. Iglesias AMBC Restricted Stock Units Award 109.6% 4,524 8,650 01 Jan 2026 Direct
Kristi Ann Matus AMBC Restricted Stock Units Award 109.6% 4,524 8,650 01 Jan 2026 Direct
Joan M. Lammtennant AMBC Restricted Stock Units Award 109.6% 4,524 8,650 01 Jan 2026 Direct
Michael D. Price AMBC Restricted Stock Units Award 109.6% 4,524 8,650 01 Jan 2026 Direct
Ian David Haft AMBC Restricted Stock Units Award 109.6% 4,524 8,650 01 Jan 2026 Direct
Jeffrey Scott Stein AMBC Restricted Stock Units Award 109.6% 4,524 8,650 01 Jan 2026 Direct
R. Sharon Smith AMBC Common Stock Purchase 0.01% $205 $10.25 20 170,952 12 Nov 2025 Direct
Claude LeBlanc AMBC Restricted Stock Units Award 118.4% 278,466 513,617 03 Oct 2025 Direct
Claude LeBlanc AMBC Performance Stock Option Award 500,000 500,000 03 Oct 2025 Direct
R. Sharon Smith AMBC Restricted Stock Units Award 109.2% 55,433 106,200 03 Oct 2025 Direct
R. Sharon Smith AMBC Performance Stock Option Award 284,125 284,125 03 Oct 2025 Direct
David Trick AMBC Restricted Stock Units Award 116.9% 66,519 123,439 03 Oct 2025 Direct
David Trick AMBC Performance Stock Option Award 350,375 350,375 03 Oct 2025 Direct
Jeffrey Scott Stein AMBC Restricted Stock Units Award 4,126 4,126 01 Oct 2025 Direct
Michael D. Price AMBC Restricted Stock Units Award 4,126 4,126 01 Oct 2025 Direct
Kristi Ann Matus AMBC Restricted Stock Units Award 4,126 4,126 01 Oct 2025 Direct
Joan M. Lammtennant AMBC Restricted Stock Units Award 4,126 4,126 01 Oct 2025 Direct
Lisa G. Iglesias AMBC Restricted Stock Units Award 4,126 4,126 01 Oct 2025 Direct
Ian David Haft AMBC Restricted Stock Units Award 4,126 4,126 01 Oct 2025 Direct
Claude LeBlanc AMBC Common Stock Purchase 2.51% $213,500 $8.54 25,000 1,021,777 01 Oct 2025 Direct
Ian David Haft AMBC Restricted Stock Units Disposition pursuant to a tender of shares in a change of control transaction -100% -131,921 0 01 Oct 2025 Direct
R. Sharon Smith OSG Common Stock Tax liability -2.12% -3,235 149,162 30 Sep 2025 Direct
R. Sharon Smith OSG Common Stock Options Exercise 2.17% 3,235 152,397 30 Sep 2025 Direct
R. Sharon Smith OSG Deferred Share Units Award 76,206 76,206 30 Sep 2025 Direct
David Trick OSG Common Stock Tax liability -8.04% -22,796 260,631 30 Sep 2025 Direct
David Trick OSG Common Stock Options Exercise 17.6% 42,515 283,427 30 Sep 2025 Direct
David Trick OSG Deferred Share Units Award 46,300 46,300 30 Sep 2025 Direct
Claude LeBlanc AMBC Common Stock Tax liability -10% -111,034 996,777 30 Sep 2025 Direct
Claude LeBlanc AMBC Common Stock Options Exercise 21.1% 193,353 1,107,811 30 Sep 2025 Direct
Claude LeBlanc AMBC Deferred Share Units Award 174,961 174,961 30 Sep 2025 Direct
R. Sharon Smith OSG Common Stock Tax liability -32.2% -70,680 149,162 29 Sep 2025 Direct
R. Sharon Smith OSG Common Stock Conversion of derivative security 194.3% 145,135 219,842 29 Sep 2025 Direct
R. Sharon Smith OSG Deferred Share Units Conversion of derivative security -100% -145,135 0 29 Sep 2025 Direct
David Trick OSG Common Stock Tax liability -25% -80,531 240,912 29 Sep 2025 Direct
David Trick OSG Common Stock Conversion of derivative security 105.9% 165,361 321,443 29 Sep 2025 Direct
David Trick OSG Deferred Share Units Conversion of derivative security -100% -165,361 0 29 Sep 2025 Direct
Claude LeBlanc AMBC Common Stock Tax liability -27.7% -350,188 914,458 29 Sep 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.