Who
John D. Diekman
Director
Company insider
Files Form 4 as: Director, Zai Lab; 10% owner, Skye Bioscience; 10% owner, scPharmaceuticals; Director, IDEAYA Biosciences; 10% owner, Arvinas; 10% owner, Crinetics Pharmaceuticals; Director, Affymetrix.
In numbers
- Trades disclosed
- 54
- Buys
- 2
- Sells
- 16
- Bought
- $14.5M
- Sold
- $14.5M
- Companies
- 7
- Companies where not an officer
- 7
- First trade
- 8 Nov 2006
- Last trade
- 17 Jun 2026
- Last filed
- 22 Jun 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 17 Jun 2026filed 22 Jun 2026 | ZLAB Zai LabBiotechnology | SEC FORM 4 Code A | —22,371 at $0.00 | filing |
| 17 Jun 2026filed 22 Jun 2026 | ZLAB Zai LabBiotechnology | SEC FORM 4 Code A | —22,371 at $0.00 | filing |
| 18 Jun 2025filed 23 Jun 2025 | ZLAB Zai LabBiotechnology | SEC FORM 4 Code A | —10,831 at $0.00 | filing |
| 18 Jun 2024filed 20 Jun 2024 | ZLAB Zai LabBiotechnology | SEC FORM 4 Code A | —21,253 at $0.00 | filing |
| 31 Jan 2024filed 2 Feb 2024 | SKYE Skye BioscienceBiotechnology | SEC FORM 4 Bought | $12.0M5,206,074 at $2.31 | filing |
| 29 Jun 2023filed 30 Jun 2023 | ZLAB Zai LabBiotechnology | SEC FORM 4 Code A | $500K18,903 at $26.45 | filing |
| 10 Oct 2022filed 11 Oct 2022 | scPharmaceuticals | SEC FORM 4 Sold | $1.9M456,413 at $4.09 | filing |
| 10 Oct 2022filed 11 Oct 2022 | scPharmaceuticals | SEC FORM 4 Sold | $78K19,017 at $4.09 | filing |
| 10 Oct 2022filed 11 Oct 2022 | scPharmaceuticals | SEC FORM 4 Sold | $356K87,036 at $4.09 | filing |
| 6 Oct 2022filed 11 Oct 2022 | scPharmaceuticals | SEC FORM 4 Sold | $153K30,457 at $5.02 | filing |
| 6 Oct 2022filed 11 Oct 2022 | scPharmaceuticals | SEC FORM 4 Sold | $6,3701,269 at $5.02 | filing |
| 6 Oct 2022filed 11 Oct 2022 | scPharmaceuticals | SEC FORM 4 Sold | $29K5,808 at $5.02 | filing |
| 4 Feb 2022filed 7 Feb 2022 | ZLAB Zai LabBiotechnology | SEC FORM 4 Sold | $50K1,000 at $50.17 | filing |
| 3 Jan 2022filed 4 Jan 2022 | ZLAB Zai LabBiotechnology | SEC FORM 4 Code A | —7,763 at $0.00 | filing |
| 5 Nov 2021filed 8 Nov 2021 | ZLAB Zai LabBiotechnology | SEC FORM 4 Sold | $92K1,000 at $91.65 | filing |
| 17 Aug 2021filed 14 Feb 2022 | ZLAB Zai LabBiotechnology | SEC FORM 4 Code G | —7,818 at $0.00 | filing |
| 5 Aug 2021filed 5 Aug 2021 | ZLAB Zai LabBiotechnology | SEC FORM 4 Sold | $150K1,000 at $149.50 | filing |
| 16 Jun 2021filed 14 Feb 2022 | ZLAB Zai LabBiotechnology | SEC FORM 4 Code F | $500K3,515 at $142.25 | filing |
| 5 May 2021filed 6 May 2021 | ZLAB Zai LabBiotechnology | SEC FORM 4 Sold | $154K1,000 at $153.62 | filing |
| 4 Mar 2021filed 14 Feb 2022 | ZLAB Zai LabBiotechnology | SEC FORM 4 Code G | —7,500 at $0.00 | filing |
News
No headline names them, or the companies they trade most, lately.