InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (3 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
3
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Explore the detailed record of transactions filed by Grandisson Marc, Chairman & CEO. Director active across 2 companies, notably Arch Capital Group Ltd.. Aggregated, 20 filings have been logged. Split: 0 buy · 3 sells. Total volume traded: €42.2m. Activity tracked since 5 May 2021. The latest transaction was disclosed on 15 July 2026 (Attribution). Regulator: SEC (Form 4). The full history is openly available.
Companies and markets linked to Grandisson Marc
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations20 total
68,653 shares0Common stock, $0.01 par valueSEC:0001104659-26-084684:0
3,290 sharesCommon stock, $0.01 par valueSEC:0001104659-26-077385:0
16,693 shares0Common Shares, $.0011 par value per shareSEC:0001415889-24-005894:0
138,190 shares0Common Shares, $.0011 par value per shareSEC:0001415889-24-005531:0
246,972 shares@ US$85.6241.8% of flowCommon Shares, $.0011 par value per shareSEC:0001415889-23-014851:0
103,028 shares@ US$85.008317.1% of flowCommon Shares, $.0011 par value per shareSEC:0001415889-23-014851:1
200,000 shares@ US$76.104629.7% of flowCommon Shares, $.0011 par value per shareSEC:0001415889-23-008607:0
44,109 shares0Common Shares, $.0011 par value per shareSEC:0001415889-23-003560:0
18,252 shares0Common Shares, $.0011 par value per shareSEC:0001415889-23-003560:1
48,000 shares@ US$19.091.9% of flowCommon Shares, $.0011 par value per shareSEC:0001415889-22-011376:0
53,100 shares@ US$17.84332.0% of flowCommon Shares, $.0011 par value per shareSEC:0001415889-22-011094:0
100,800 shares@ US$14.21673.0% of flowCommon Shares, $.0011 par value per shareSEC:0001415889-22-010949:2
25,284 shares@ US$56.683.0% of flowCommon Shares, $.0011 par value per shareSEC:0001415889-22-010949:3
54,275 shares0Common Shares, $.0011 par value per shareSEC:0001415889-22-010949:0
54,275 shares0Common Shares, $.0011 par value per shareSEC:0001415889-22-010949:1
75,516 shares0Common Shares, $.0011 par value per shareSEC:0001415889-22-010949:4
75,516 shares0Common Shares, $.0011 par value per shareSEC:0001415889-22-010949:5
163,126 shares0Common Shares, $.0011 par value per shareSEC:0001179110-22-002944:0
138,486 shares0Common Shares, $.0011 par value per shareSEC:0001179110-22-001831:0
36,000 shares@ US$11.30430.7% of flowCommon Shares, $.0011 par value per shareSEC:0001179110-21-005001:0
20 of 20 declarations
About Grandisson Marc
GRANDISSON MARC is Président-Directeur Général. He has 20 filings in total, and across the 20 sampled filings between 2021-05-07 and 2026-07-17, the reported amounts are only sales, totaling EUR 42199317, with filings related to Arch Capital Group Ltd. and Howard Hughes Holdings Inc.
