InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (6 ops.)
Insider track record
OtherDisclosed buys
0
Disclosed sells
6
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Browse the detailed record of transactions filed by Guindo Chirfi. Director active across 2 companies, notably BIOGEN INC.. Aggregated, 16 reports have been published. Split: 0 buy · 6 sells. Total volume traded: €8.1m. Activity tracked since 7 June 2021. The latest transaction was disclosed on 13 August 2026 (Cession). Regulator: SEC (Form 4). The full history is accessible without signup.
Companies and markets linked to Guindo Chirfi
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations16 total
10,000 shares@ US$135.00Common StockSEC:0000310158-26-000223:0
15,000 shares@ US$131.000.0006% mcap8.7% of flowCommon StockSEC:0000310158-26-000213:0
1,967 shares@ US$110.030.0001% mcap1.8% of flowCommon StockSEC:0000310158-26-000102:0
969 shares@ US$110.030.0000% mcap0.9% of flowCommon StockSEC:0000310158-26-000102:1
10,000 shares@ US$121.45625.7% of flowCommon StockSEC:0000310158-26-000052:0
10,000 shares@ US$118.41015.6% of flowCommon StockSEC:0000310158-26-000048:0
20,000 shares@ US$121.883811.6% of flowCommon StockSEC:0000310158-26-000034:0
9,865 shares@ US$107.405.0% of flowCommon StockSEC:0000310158-26-000014:0
36,903 shares@ US$79.2919.6% of flowCommon StockSEC:0000310158-25-000010:0
28,158 shares@ US$97.9426.1% of flowCommon StockSEC:0001127602-25-002334:0
36,901 shares@ US$115.2038.5% of flowCommon StockSEC:0001127602-24-021690:0
36,901 shares@ US$105.7035.3% of flowCommon StockSEC:0001127602-23-022015:0
1,981 shares0Common StockSEC:0001127602-22-006266:0
1,261 shares0Common StockSEC:0001127602-22-004989:0
3,088 shares0Common StockSEC:0001127602-22-001862:0
3,087 shares@ US$440.00100.0% of flowCommon StockSEC:0001127602-21-019552:0
16 of 16 declarations
About Guindo Chirfi
Guindo Chirfi is a declarant linked to Merck & Co., Inc. and BIOGEN INC., with 14 filings in total. Across the 14 sampled filings, they cover the period from 2021-06-09 to 2026-05-01, with EUR 0 of buys and EUR 5203451 of sells, and the modal transaction nature is Levée d'options.
