InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (22 ops.)
Insider track record
ExecutiveDisclosed buys
0
Disclosed sells
22
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
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, 47 disclosures have been recorded. Breakdown: 0 buy · 22 sells. Total volume traded: €3.4m. Activity tracked since 28 May 2021. The latest transaction was disclosed on 28 January 2026 (Attribution). Regulator: SEC (Form 4). All data is accessible without signup.
Companies and markets linked to Watson David O.
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations47 total
144,517 sharesCommon StockSEC:0001193125-26-224583:0
55,986 shares0Common StockSEC:0001492422-26-000072:0
7,832 shares@ US$21.76544.7% of flowCommon StockSEC:0001492422-26-000054:0
2,475 shares@ US$19.79291.4% of flowCommon StockSEC:0001492422-26-000038:0
5,780 shares@ US$22.18723.5% of flowCommon StockSEC:0001492422-26-000025:0
888 shares@ US$14.950.4% of flowCommon StockSEC:0001492422-26-000017:0
5,000 shares@ US$24.493.7% of flowCommon StockSEC:0001492422-25-000014:0
5,000 shares@ US$20.064.2% of flowCommon StockSEC:0001492422-25-000012:0
5,000 shares@ US$25.224.0% of flowCommon StockSEC:0001492422-25-000009:0
5,000 shares@ US$24.344.0% of flowCommon 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
25 of 47 declarations
About Watson David O.
Watson David O. is Directeur Juridique and General Counsel at Apellis Pharmaceuticals, Inc. He has filed 47 forms, all in the tracked sample, with 0 EUR of buys and 3,439,614 EUR of sells, and the dominant transaction nature is Cession. The tracked recent filings run from 2021-06-01 to 2026-05-14.
