InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (17 ops.)
Insider track record
ExecutiveDisclosed buys
0
Disclosed sells
17
T+90 hit rate
59%
T+90 mean return
+8.4%
Across 22 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the full record of transactions filed by Watson David O., Directeur Juridique. Insider active across 2 companies, notably Apellis Pharmaceuticals, Inc.. Aggregated, 40 disclosures have been recorded. Breakdown: 0 buy · 17 sells. Total volume traded: €2.9m. Activity tracked since 28 May 2021. The latest transaction was disclosed on 17 November 2025 (Cession). Regulator: SEC (Form 4). All data is accessible without signup.
Declarations40 total
144,517 sharesCommon StockSEC:0001193125-26-224583:0
5,000 shares@ US$20.064.2% of flowCommon StockSEC:0001492422-25-000012:0
5,000 shares@ US$24.34Common StockSEC:0001492422-25-000007:0
20,000 shares@ US$26.1718.0% of flowCommon StockSEC:0001193125-25-202168:0
5,000 shares@ US$27.805.8% of flowCommon StockSEC:0001127602-25-020714:0
5,000 shares@ US$19.5511.2% of flowCommon StockSEC:0001127602-25-019411:0
5,000 shares@ US$18.7712.2% of flowCommon StockSEC:0001127602-25-017714:0
6,667 shares0Common StockSEC:0000950170-25-034908:0
695 shares@ US$29.52361.0% of flowCommon StockSEC:0001127602-25-002389:0
3,323 shares@ US$30.42554.8% of flowCommon StockSEC:0001127602-25-001847:0
2,201 shares@ US$29.95823.1% of flowCommon StockSEC:0001127602-25-001631:0
42,762 shares0Common StockSEC:0001127602-25-001631:1
4,965 shares@ US$28.70216.8% of flowCommon StockSEC:0001127602-25-001204:0
5,000 shares@ US$34.2358.0% of flowCommon StockSEC:0000950170-24-136202:0
10,569 shares0Common StockSEC:0000950170-24-110373:0
3,762 shares@ US$13.852.4% of flowCommon StockSEC:0001127602-24-009113:0
781 shares@ US$67.76692.4% of flowCommon StockSEC:0001127602-24-004737:0
906 shares@ US$64.13822.6% of flowCommon StockSEC:0001127602-24-002755:0
4,184 shares@ US$64.99612.2% of flowCommon StockSEC:0001127602-24-001963:0
23,748 shares0Common StockSEC:0001127602-24-001436:0
7,905 shares@ US$13.854.9% of flowCommon StockSEC:0001127602-23-030172:0
8,510 shares@ US$89.9834.4% of flowCommon StockSEC:0001127602-23-020395:0
12,750 shares0Common StockSEC:0000950170-23-030747:0
67,955 shares0Common StockSEC:0000950170-23-014095:0
9,886 shares0Common StockSEC:0000899243-23-005782:0
25 of 40 declarations
About Watson David O.
David O. Watson is the Legal Director at Apellis Pharmaceuticals, Inc.
