Thomas Richard Kassberg
CIK 1303811 · CBO & EVP · last filed 2026-05-21
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$6.61M
Companies
2
Total Filings
59
Lifetime Open-Market Net
-$7.55M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Recent Filings · Page 4 of 6
59 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2017-06-01 | RARE | Tax (F) | −376 | -$21.3K | EDGAR |
| 2017-05-22 | RARE | Tax (F) | −414 | -$23.8K | EDGAR |
| 2017-03-01 | RARE | Grant (A) | +3,000 | $0 | EDGAR |
| 2016-06-03 | RARE | Grant (A) | +4,000 | $0 | EDGAR |
| 2016-05-24 | RARE | Tax (F) | −414 | -$26.5K | EDGAR |
| 2015-08-14 | RARE | Sell (S) | −3,334 | -$365.7K | EDGAR |
| 2015-07-10 | RARE | Sell (S) | −3,334 | -$340.5K | EDGAR |
| 2015-06-12 | RARE | Sell (S) | −3,334 | -$294.0K | EDGAR |
| 2015-05-27 | RARE | Grant (A) | +4,400 | $0 | EDGAR |
| 2015-05-15 | RARE | Sell (S) | −3,334 | -$240.2K | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.