RICHSTONE ELLEN B
Director · OESX, CGTX
As of 2026-09-16, RICHSTONE ELLEN B has 11 Form 4 transactions on record across 2 companies — 2 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-02-21 | OESX | Purchase | 20,000 @ $0.91 | $18K | +6.8% of holding | 313,658 | Form 4 |
| 2025-02-20 | OESX | Purchase | 874 @ $0.88 | $772 | +0.3% of holding | 293,658 | Form 4 |
| 2025-02-19 | OESX | Purchase | 13,000 @ $0.84 | $11K | +4.6% of holding | 292,784 | Form 4 |
| 2025-02-18 | OESX | Purchase | 13,000 @ $0.84 | $11K | +4.9% of holding | 279,784 | Form 4 |
| 2025-02-14 | OESX | Purchase | 10,000 @ $0.82 | $8K | +3.9% of holding | 266,784 | Form 4 |
6 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-11 | OESX | Award / grant | 2,532 | 35,897 | Form 4 |
| 2026-06-17 | CGTX | Award / grant | 25,000 | 83,500 | Form 4 |
| 2025-07-01 | OESX | Award / grant | 20,000 | 333,658 | Form 4 |
| 2025-06-18 | CGTX | Award / grant | 34,000 | 58,500 | Form 4 |
| 2025-05-22 | — | Option exercise | 37,338 | 192,336 | Form 4 |
| 2025-05-22 | — | Option exercise | 37,338 | 0 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.