Quick Takeaways
- William D. Waddill has 4 issuer positions tracked on this page.
- Estimated disclosed ownership value: $4,531,058.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of William D. Waddill
- Location
- So. San Francisco, CA
- Summary
- The estimated net worth of William D. Waddill is at least $4,531,058 dollars as of 06 Feb 2026. William D. Waddill is the Director of ARROWHEAD PHARMACEUTICALS, INC. and owns shares of ARROWHEAD PHARMACEUTICALS, INC. (ARWR) stock worth about $3.88M. William D. Waddill is the Director of Protagonist Therapeutics, Inc and owns shares of Protagonist Therapeutics, Inc (PTGX) stock worth about $654.8K.
- Signature
- /s/ Matthew Gosling, Attorney-in-Fact for William D. Waddill
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow William D. Waddill and return when a new Insider Trading filing appears.
This tracks SEC filing changes for this page using existing product update flows.
What Changed
- Largest disclosed position: ARROWHEAD PHARMACEUTICALS, INC. ($3,876,262).
- Past-year value change for that position: -$566,038.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of William D. Waddill
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| ARWR | ARROWHEAD PHARMACEUTICALS, INC. | Director | $3,876,262 | -$566,038 | -13% | 19 Dec 2025 |
| PTGX | Protagonist Therapeutics, Inc | Director | $654,796 | -$3,147,080 | -83% | 06 Feb 2026 |
| ANNX | Annexon, Inc. | Director | 05 Jun 2025 | |||
| TSBX | Turnstone Biologics Corp. | Director | 03 Jun 2024 |
Insider Transactions Reported by William D. Waddill:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.