S Brian Posner

Affiliations

  • at Arch Capital Group Ltd. (ACGL), 2025-05-09
  • Director at Biogen Inc. (BIIB), 2023-01-27
  • Director at Bioverativ Inc. (BIVV), 2018-03-08
  • Director at Bg Medicine Inc. (BGMD), 2014-06-05
  • Director at Anadys Pharmaceuticals Inc (ANDS), 2011-08-24
Insider Trading: Purchases See All
Symbol Price Amount Total Value Remaining Holdings Date Form 4
ACGL $17.60 2,000 $35,200.00 4,000 2022-10-28 Filing
ACGL $19.23 2,000 $38,450.00 2,000 2022-04-29 Filing
ACGL $22.16 1,000 $22,159.40 103,801 2020-05-13 Filing
ACGL $23.72 1,000 $23,717.80 92,685 2020-05-06 Filing
ACGL $28.24 500 $14,118.50 85,127 2018-11-28 Filing
Insider Trading: Sales See All
Symbol Price Amount Total Value Remaining Holdings Date Form 4
ACGL $25.24 4,000 $100,971.20 2,000 2021-06-14 Filing
BIIB $274.17 360 $98,701.20 7,400 2021-06-04 Filing
BIIB $292.35 1,055 $308,429.25 6,995 2019-12-02 Filing
BIIB $256.31 1,084 $277,840.04 6,330 2017-06-09 Filing
BIIB $415.00 470 $195,050.00 5,275 2015-06-22 Filing