Kassberg Thomas Richard
Director · Officer · RARE
As of 2026-09-27, Kassberg Thomas Richard has 12 Form 4 transactions on record across 1 company — 1 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 March in multiple years since 2024 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $3.8M
- Indirect $0
| RARE | direct | 264,730 sh | $3.8M |
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 |
|---|---|---|---|---|---|---|---|
| 2025-03-03 | RARE | Sale | 6,028 @ $42.10 | $254K | −2.2% of holding | 265,238 | Form 4 |
| 2024-03-11 | RARE | Sale | 11,509 @ $49.93 | $575K | −4.4% of holding | 252,823 | Form 4 |
| 2024-03-01 | RARE | Sale | 1,011 @ $53.76 | $54K | −0.4% of holding | 264,332 | Form 4 |
9 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-05-19 | — | Award / grant | 10,539 | 10,539 | Form 4 |
| 2025-05-28 | — | Award / grant | 143,789 | 143,789 | Form 4 |
| 2025-03-03 | RARE | Withheld for tax | 508 | 264,730 | Form 4 |
| 2025-03-01 | RARE | Award / grant | 18,443 | 271,266 | Form 4 |
| 2024-09-30 | — | Award / grant | 174,139 | 174,139 | Form 4 |
| 2024-03-01 | RARE | Withheld for tax | 274 | 265,343 | Form 4 |
| 2024-03-01 | RARE | Award / grant | 17,800 | 264,660 | Form 4 |
| 2024-03-01 | RARE | Award / grant | 31,400 | 31,400 | Form 4 |
| 2024-03-01 | RARE | Award / grant | 957 | 265,617 | 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.