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Stephen T Chen Insider Trading Activity
Every SEC Form 4 transaction reported by Stephen T Chen, sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Is Stephen T Chen buying or selling?
Stephen T Chen reported 169 open-market buys ($550.7K) and 0 sells ($0) across 169 Form 4 filings at 1 company — a net buying position of $550.7K.
Source: SEC EDGAR Form 4
What stands out
- All 169 of Stephen T Chen's Form 4 filings are for one company, AMARILLO BIOSCIENCES INC (AIMD).
- The most recent Form 4 was accepted on Oct 14, 2020 (6 years ago).
- No open-market purchases or sales were reported in the last 12 months.
Key Statistics (as of Oct 14, 2020)
Total Form 4 filings
169
SEC EDGAR
Companies
1
Buys (169)
$550.7K
Sells (0)
$0
Insider sentiment
Net buyingNet insider flow of $550.7K in net buying, filed between Jan 19, 2018 – Oct 14, 2020.
Companies Stephen T Chen files for
| # | Company | Form 4 filings |
|---|---|---|
| 1 | AIMDAMARILLO BIOSCIENCES INC | 169 |
Recent Stephen T Chen transactions
| Date | Ticker | Role | Type | Shares | Value | Filing |
|---|---|---|---|---|---|---|
| Oct 14, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 700 | $97 | SEC ↗ |
| Oct 9, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 400 | $52 | SEC ↗ |
| Oct 8, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 200 | $44 | SEC ↗ |
| Oct 2, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 300 | $54 | SEC ↗ |
| Sep 22, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 1.1K | $190 | SEC ↗ |
| Sep 15, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $18 | SEC ↗ |
| Sep 8, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 600 | $126 | SEC ↗ |
| Aug 25, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $21 | SEC ↗ |
| Aug 21, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 600 | $127 | SEC ↗ |
| Aug 8, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 1.4K | $345.5 | SEC ↗ |
| Jul 2, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 50 | $11 | SEC ↗ |
| Jun 30, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $22 | SEC ↗ |
| Jun 24, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $22 | SEC ↗ |
| May 29, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $23 | SEC ↗ |
| May 21, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 50 | $11.5 | SEC ↗ |
| May 19, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $23 | SEC ↗ |
| May 15, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $23 | SEC ↗ |
| Apr 30, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $23 | SEC ↗ |
| Apr 24, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $24 | SEC ↗ |
| Apr 22, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $27 | SEC ↗ |
| Apr 18, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 400 | $91 | SEC ↗ |
| Apr 15, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 300 | $68 | SEC ↗ |
| Apr 9, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 100 | $24 | SEC ↗ |
| Apr 3, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 200 | $50 | SEC ↗ |
| Mar 30, 2020 | AIMD | President,Chairman,CEO,CFO | Purchase | 300 | $74 | SEC ↗ |
Showing the 25 most recent filings of 169. Screen every filing.
Stephen T Chen insider trading FAQ
Is Stephen T Chen buying or selling?
Across 169 SEC Form 4 filings, Stephen T Chen reported 169 open-market purchases totaling $550.7K and 0 sales totaling $0 — a net buying position of $550.7K.
Which companies does Stephen T Chen file Form 4s for?
Stephen T Chen has reported insider transactions at 1 company, most often AMARILLO BIOSCIENCES INC (AIMD).
How far back does Stephen T Chen's filing history go?
Trabud holds Stephen T Chen's SEC Form 4 filings from Jan 19, 2018 – Oct 14, 2020, sourced directly from SEC EDGAR.
Where does Trabud get Stephen T Chen's insider trading data?
Directly from SEC EDGAR Form 4 filings. Every transaction on this page is a real filing accepted by the SEC, updated as new filings arrive.
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