Who
Stephen Bardin
Chief Financial Officer
Company insider
Files Form 4 as: Chief Financial Officer, CalciMedica; Chief Financial Officer, ATAI Life Sciences.
In numbers
- Trades disclosed
- 10
- Buys
- 2
- Sells
- 0
- Bought
- $4,690
- Sold
- $0
- Companies
- 2
- Companies where not an officer
- 0
- First trade
- 14 Mar 2023
- Last trade
- 24 Sep 2026
- Last filed
- 28 Sep 2026
Companies traded
Activity over time
1 May 2025 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 24 Sep 2026filed 28 Sep 2026 | CALC CalciMedicaoption or derivative · Biotechnology | SEC FORM 4 Code A | —190,000 at $0.00 | filing |
| 24 Sep 2026filed 28 Sep 2026 | CALC CalciMedicaoption or derivative · Biotechnology | SEC FORM 4 Code A | —190,000 at $0.00 | filing |
| 26 Jun 2025filed 26 Jun 2025 | CALC CalciMedicaBiotechnology | SEC FORM 4 Bought | $3,0002,000 at $1.50 | filing |
| 24 Jun 2025filed 26 Jun 2025 | CALC CalciMedicaoption or derivative · Biotechnology | SEC FORM 4 Code A | —20,000 at $0.00 | filing |
| 30 May 2025filed 3 Jun 2025 | CALC CalciMedicaBiotechnology | SEC FORM 4 Bought | $1,6901,000 at $1.69 | filing |
| 23 Apr 2025filed 25 Apr 2025 | CALC CalciMedicaoption or derivative · Biotechnology | SEC FORM 4 Code A | —130,000 at $0.00 | filing |
| 5 Apr 2025filed 7 Apr 2026 | CALC CalciMedicaoption or derivative · Biotechnology | SEC FORM 4 Code A | —67,728 at $0.00 | filing |
| 5 Apr 2025filed 7 Apr 2026 | CALC CalciMedicaoption or derivative · Biotechnology | SEC FORM 4 Code A | —67,728 at $0.00 | filing |
| 14 Mar 2023filed 16 Mar 2023 | ATAI Life Sciencesoption or derivative | SEC FORM 4 Code A | —600,000 at $0.00 | filing |
| 14 Mar 2023filed 16 Mar 2023 | ATAI Life Sciencesoption or derivative | SEC FORM 4 Code A | —350,000 at $0.00 | filing |
News
No headline names them, or the companies they trade most, lately.