Thomas W. Beetham
CIK 1741382 · Chief Operating Officer · last filed 2026-03-09
"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
$22.64M
Companies
3
Total Filings
27
Lifetime Open-Market Net
-$2.03M
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.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| VRDN | Chief Operating Officer | 13,361 | $18.98 | $253.6K | $117.0K | 5 | 2026-03-09 |
| Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted | See Remarks | 1,244 | $11.19 | $13.9K | -$41.1K | 8 | 2022-12-02 |
| KNSA | EVP & Chief Legal Officer | 300,000 | $74.63 | $22.39M | -$2.11M | 13 | 2021-03-23 |
Recent Filings · Page 2 of 3
27 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-02-17 | Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-09-20 | Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted | Sell (S) | −6,103 | -$41.1K | EDGAR |
| 2021-09-16 | Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted | Grant (A) | +20,000 | $0 | EDGAR |
| 2021-06-15 | Dianthus Therapeutics, Inc. /DE/ (MGTA) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-03-23 | KNSA | Grant (A) | — | $0 | EDGAR |
| 2021-03-18 | KNSA | Grant (A) | — | $0 | EDGAR |
| 2021-02-05 | KNSA | Mixed | +297,523 | -$54.7K | EDGAR |
| 2020-09-14 | KNSA | Grant (A) | — | $0 | EDGAR |
| 2020-07-02 | KNSA | Sell (S) | −29,589 | -$750.7K | EDGAR |
| 2020-06-12 | KNSA | Mixed | — | -$322.9K | EDGAR |
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.