Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| CTSO | Chan Phillip P. | Chief Executive Officer | 09/15/2026 | Kauf | 6.00 | 3,774 | 22,644 | Form 4 |
| CTSO | Sobel Alan D. | Director | 09/15/2026 | Kauf | 6.01 | 100 | 601 | Form 4 |
| CTSO | Sobel Alan D. | Director | 09/15/2026 | Kauf | 6.05 | 500 | 3,025 | Form 4 |
| CTSO | Sobel Alan D. | Director | 09/15/2026 | Kauf | 6.12 | 1,900 | 11,628 | Form 4 |
| CTSO | Capponi Vincent | President and COO | 09/14/2026 | Kauf | 5.90 | 273 | 1,611 | Form 4 |
| CTSO | Capponi Vincent | President and COO | 09/14/2026 | Kauf | 6.07 | 1,800 | 10,926 | Form 4 |
| CTSO | Chan Phillip P. | Chief Executive Officer | 09/04/2026 | Kauf | 0.35 | 200,000 | 70,000 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).