Who
Mark S. Blumenkranz
Director
Company insider
Files Form 4 as: Director, Annexon; Director, Kala Bio; Director, IVERIC bio; Director, 1Life Healthcare; Director, Avalanche Biotechnologies; Director, Presbia.
In numbers
- Trades disclosed
- 101
- Buys
- 0
- Sells
- 13
- Bought
- $0
- Sold
- $10.4M
- Companies
- 6
- Companies where not an officer
- 6
- First trade
- 5 Aug 2014
- Last trade
- 10 Aug 2026
- Last filed
- 12 Aug 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 | |
|---|---|---|---|---|
| 10 Aug 2026filed 12 Aug 2026 | ANNX Annexonoption or derivative · Biotechnology | SEC FORM 4 Code A | —175,000 at $0.00 | filing |
| 10 Aug 2026filed 12 Aug 2026 | ANNX Annexonoption or derivative · Biotechnology | SEC FORM 4 Code A | —175,000 at $0.00 | filing |
| 11 Jun 2024filed 12 Jun 2024 | KALA Kala Biooption or derivative · Biotechnology | SEC FORM 4 Code A | —3,150 at $0.00 | filing |
| 11 Jun 2024filed 12 Jun 2024 | KALA Kala BioBiotechnology | SEC FORM 4 Code A | —1,400 at $0.00 | filing |
| 11 Jul 2023filed 13 Jul 2023 | IVERIC biooption or derivative | SEC FORM 4 Code D | —5,000 | filing |
| 11 Jul 2023filed 13 Jul 2023 | IVERIC biooption or derivative | SEC FORM 4 Code D | —7,500 | filing |
| 11 Jul 2023filed 13 Jul 2023 | IVERIC biooption or derivative | SEC FORM 4 Code D | —31,000 | filing |
| 11 Jul 2023filed 13 Jul 2023 | IVERIC biooption or derivative | SEC FORM 4 Code D | —15,500 | filing |
| 11 Jul 2023filed 13 Jul 2023 | IVERIC biooption or derivative | SEC FORM 4 Code D | —23,186 | filing |
| 11 Jul 2023filed 13 Jul 2023 | IVERIC bio | SEC FORM 4 Code D | —32,088 | filing |
| 22 Jun 2023filed 23 Jun 2023 | KALA Kala Biooption or derivative · Biotechnology | SEC FORM 4 Code A | —5,046 at $0.00 | filing |
| 22 Jun 2023filed 23 Jun 2023 | KALA Kala Biooption or derivative · Biotechnology | SEC FORM 4 Code A | —2,500 at $0.00 | filing |
| 22 Jun 2023filed 23 Jun 2023 | KALA Kala BioBiotechnology | SEC FORM 4 Code A | —3,784 at $0.00 | filing |
| 22 Jun 2023filed 23 Jun 2023 | KALA Kala BioBiotechnology | SEC FORM 4 Code A | —1,100 at $0.00 | filing |
| 31 May 2023filed 2 Jun 2023 | KALA Kala Biooption or derivative · Biotechnology | SEC FORM 4 Code D | —840 | filing |
| 31 May 2023filed 2 Jun 2023 | KALA Kala Biooption or derivative · Biotechnology | SEC FORM 4 Code D | —800 | filing |
| 31 May 2023filed 2 Jun 2023 | KALA Kala BioBiotechnology | SEC FORM 4 Code A | —1,640 | filing |
| 17 May 2023filed 19 May 2023 | IVERIC biooption or derivative | SEC FORM 4 Code A | —7,500 at $0.00 | filing |
| 11 May 2023filed 15 May 2023 | IVERIC biooption or derivative | SEC FORM 4 Code M | —14,588 at $0.00 | filing |
| 11 May 2023filed 15 May 2023 | IVERIC bio | SEC FORM 4 Code M | —14,588 | filing |
News
No headline names them, or the companies they trade most, lately.