James C Hamilton
CIK 1830755 · Chief Medical Officer · last filed 2026-04-24
"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
$19.48M
Companies
1
Total Filings
38
Lifetime Open-Market Net
-$14.39M
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 |
|---|---|---|---|---|---|---|---|
| ARWR | Chief Medical Officer | 226,958 | $85.83 | $19.48M | -$14.39M | 20 | 2026-04-24 |
Recent Filings · Page 2 of 4
38 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 |
|---|---|---|---|---|---|
| 2025-10-01 | ARWR | Notice (144) | −20,000 | -$700.0K | EDGAR |
| 2025-09-16 | ARWR | Sell (S) | −15,000 | -$450.0K | EDGAR |
| 2025-09-12 | ARWR | Notice (144) | −15,000 | -$450.0K | EDGAR |
| 2025-09-04 | ARWR | Sell (S) | −15,000 | -$375.0K | EDGAR |
| 2025-09-02 | ARWR | Notice (144) | −15,000 | -$375.0K | EDGAR |
| 2025-08-15 | ARWR | Notice (144) | −9,389 | -$187.8K | EDGAR |
| 2025-08-15 | ARWR | Sell (S) | −10,000 | -$200.0K | EDGAR |
| 2025-08-13 | ARWR | Notice (144) | −611 | -$12.2K | EDGAR |
| 2025-01-07 | ARWR | Mixed | +67,271 | -$648.8K | EDGAR |
| 2025-01-06 | ARWR | Notice (144) | −32,729 | -$648.7K | 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.