Patrick O'Brien
CIK 1627183 · COO · last filed 2026-01-08
"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
$40.58M
Companies
1
Total Filings
28
Lifetime Open-Market Net
-$20.67M
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 | COO | 472,848 | $85.83 | $40.58M | -$20.67M | 21 | 2026-01-08 |
Recent Filings · Page 2 of 3
28 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 |
|---|---|---|---|---|---|
| 2024-01-04 | ARWR | Notice (144) | −7,049 | -$226.9K | EDGAR |
| 2023-01-06 | ARWR | Sell (S) | −15,000 | -$560.9K | EDGAR |
| 2023-01-05 | ARWR | Mixed | +47,500 | -$670.8K | EDGAR |
| 2022-12-22 | ARWR | Exer (M) | +32,000 | $196.8K | EDGAR |
| 2022-01-07 | ARWR | Mixed | −33,300 | -$2.01M | EDGAR |
| 2022-01-04 | ARWR | Mixed | +88,000 | $172.2K | EDGAR |
| 2021-02-10 | ARWR | Mixed | — | -$7.49M | EDGAR |
| 2021-01-07 | ARWR | Sell (S) | −25,000 | -$1.81M | EDGAR |
| 2021-01-05 | ARWR | Grant (A) | +60,000 | $0 | EDGAR |
| 2020-01-08 | ARWR | Sell (S) | −14,625 | -$879.3K | 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.