Wahlstrom Mats
Director · Ten-percent owner · CHRS, TLSI
As of 2026-09-16, Wahlstrom Mats has 11 Form 4 transactions on record across 2 companies — 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.
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 |
|---|---|---|---|---|---|---|---|
| 2026-05-15 | TLSI | Purchase | 60,000 @ $2.53 | $152K | +68.5% of holding | 147,555 | Form 4 |
| 2025-05-23 | CHRS | Sale | 99,988 @ $0.74 | $74K | −100.0% of holding | 0 | Form 4 |
9 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-05 | CHRS | Award / grant | 60,000 | 60,000 | Form 4 |
| 2026-06-05 | CHRS | Award / grant | 30,000 | 30,000 | Form 4 |
| 2026-05-14 | TLSI | Award / grant | 37,602 | 53,329 | Form 4 |
| 2026-05-14 | TLSI | Award / grant | 34,226 | 87,555 | Form 4 |
| 2026-05-14 | TLSI | Award / grant | 75,204 | 276,149 | Form 4 |
| 2025-06-12 | TLSI | Award / grant | 15,000 | 200,945 | Form 4 |
| 2025-06-12 | CHRS | Award / grant | 112,000 | 112,000 | Form 4 |
| 2025-02-10 | TLSI | Other acquisition | 44,750 | 94,750 | Form 4 |
| 2024-12-17 | TLSI | Award / grant | 25,188 | 40,915 | 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.