Sandrock Alfred
Director · Officer · VYGR
As of 2026-09-16, Sandrock Alfred has 11 Form 4 transactions on record across 1 company — 6 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 April in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $1.4M
- Indirect $0
| VYGR | direct | 472,549 sh | $1.4M |
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 |
|---|---|---|---|---|---|---|---|
| 2026-04-02 | VYGR | Sale | 11,511 @ $3.87 | $45K | −2.4% of holding | 472,549 | Form 4 |
| 2026-02-24 | VYGR | Sale | 14,197 @ $3.79 | $54K | −2.8% of holding | 484,060 | Form 4 |
| 2026-02-18 | VYGR | Sale | 11,732 @ $3.41 | $40K | −2.3% of holding | 498,257 | Form 4 |
| 2026-02-10 | VYGR | Sale | 12,192 @ $3.78 | $46K | −2.3% of holding | 509,989 | Form 4 |
| 2025-04-02 | VYGR | Sale | 10,885 @ $3.43 | $37K | −2.5% of holding | 430,931 | Form 4 |
| 2025-02-20 | VYGR | Sale | 11,702 @ $4.24 | $50K | −3.8% of holding | 296,816 | Form 4 |
| 2025-02-11 | VYGR | Sale | 16,644 @ $4.45 | $74K | −5.1% of holding | 308,518 | Form 4 |
4 award / exercise / gift records — not counted as purchases
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.