Cumbo Alexander
Director · Officer · VOR, CLYM, SLDB, VERV
As of 2026-09-16, Cumbo Alexander has 36 Form 4 transactions on record across 4 companies — 21 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.
Pattern in the record: open-market sales filed in February in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
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 |
|---|---|---|---|---|---|---|---|
| 2026-02-18 | SLDB | Sale | 16,644 @ $5.82 | $97K | −6.6% of holding | 235,405 | Form 4 |
| 2026-02-04 | SLDB | Sale | 48,913 @ $6.44 | $315K | −18.1% of holding | 222,018 | Form 4 |
| 2026-02-02 | SLDB | Sale | 80,258 @ $6.44 | $517K | −22.9% of holding | 270,931 | Form 4 |
| 2025-12-03 | SLDB | Sale | 10,808 @ $5.11 | $55K | −11.7% of holding | 81,388 | Form 4 |
| 2025-02-14 | SLDB | Sale | 11,365 @ $3.96 | $45K | −15.8% of holding | 60,717 | Form 4 |
31 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-11 | VOR | Award / grant | 56,345 | 56,345 | Form 4 |
| 2026-06-05 | CLYM | Award / grant | 40,000 | 40,000 | Form 4 |
| 2026-02-13 | SLDB | Option exercise | 30,031 | 60,063 | Form 4 |
| 2026-02-13 | SLDB | Option exercise | 30,031 | 252,049 | Form 4 |
| 2026-02-13 | SLDB | Option exercise | 30,031 | 252,049 | Form 4 |
| 2026-01-31 | SLDB | Option exercise | 100,400 | 301,200 | Form 4 |
| 2026-01-31 | SLDB | Option exercise | 100,400 | 351,189 | Form 4 |
| 2026-01-31 | SLDB | Option exercise | 100,400 | 351,189 | Form 4 |
| 2026-01-29 | SLDB | Award / grant | 169,401 | 169,401 | Form 4 |
| 2026-01-29 | SLDB | Award / grant | 509,850 | 509,850 | Form 4 |
| 2026-01-29 | SLDB | Option exercise | 169,401 | 0 | Form 4 |
| 2026-01-29 | SLDB | Award / grant | 254,900 | 254,900 | Form 4 |
| 2026-01-29 | SLDB | Option exercise | 169,401 | 250,789 | Form 4 |
| 2026-01-29 | SLDB | Option exercise | 169,401 | 250,789 | Form 4 |
| 2025-12-02 | SLDB | Option exercise | 28,612 | 28,613 | Form 4 |
| 2025-12-02 | SLDB | Option exercise | 28,612 | 92,196 | Form 4 |
| 2025-12-02 | SLDB | Option exercise | 28,612 | 92,196 | Form 4 |
| 2025-08-14 | SLDB | Award / grant | 337,500 | 337,500 | Form 4 |
| 2025-08-14 | SLDB | Award / grant | 168,750 | 168,750 | Form 4 |
| 2025-07-25 | VERV | Disposition | 136,139 | 0 | Form 4 |
| 2025-07-25 | VERV | Disposition | 42,200 | 0 | Form 4 |
| 2025-07-25 | VERV | Disposition | 42,200 | 0 | Form 4 |
| 2025-07-25 | VERV | Disposition | 136,139 | 0 | Form 4 |
| 2025-07-16 | VOR | Award / grant | 60,000 | 60,000 | Form 4 |
| 2025-06-05 | VERV | Award / grant | 42,200 | 42,200 | Form 4 |
| 2025-06-04 | CLYM | Award / grant | 40,000 | 40,000 | Form 4 |
| 2025-03-28 | CLYM | Award / grant | 80,000 | 80,000 | Form 4 |
| 2025-02-13 | SLDB | Option exercise | 30,031 | 90,094 | Form 4 |
| 2025-02-13 | SLDB | Option exercise | 30,031 | 72,082 | Form 4 |
| 2025-02-13 | SLDB | Option exercise | 30,031 | 72,082 | Form 4 |
| 2025-01-31 | SLDB | Award / grant | 401,600 | 401,600 | 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.