Waddill William D.
SEC insider (Form 3/4/5 filer). CIK 0001553338. Director at Protagonist Therapeutics, Inc (PTGX) and 2 other issuers. 28 reported Form 4/5 transactions since Sep 2024; latest on Jun 23, 2026. Located in NEWARK, CA.
Companies Waddill William D. has filed insider reports for
- Protagonist Therapeutics, Inc (PTGX): Director
- Annexon, Inc. (ANNX): Director
- ARROWHEAD PHARMACEUTICALS, INC. (ARWR): Director
Waddill William D.
CIK: 0001553338
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (28 total)
- Jun 23, 2026PTGX
Protagonist Therapeutics, Inc
SaleDirect9K shares at avg. $117.94$1.1M - Jun 23, 2026PTGX
Protagonist Therapeutics, Inc
ExerciseDirect9K shares at avg. $16.54$149K - Jun 11, 2026ANNX
Annexon, Inc.
AwardDirectStock Option (Right to Buy)
65K shares- - Jun 10, 2026PTGX
Protagonist Therapeutics, Inc
ExerciseDirect6K shares at avg. $16.54$99K - Jun 10, 2026PTGX
Protagonist Therapeutics, Inc
SaleDirect9K shares at avg. $107.68$969K - Jun 10, 2026PTGX
Protagonist Therapeutics, Inc
ExerciseDirect3K shares at avg. $11.80$35K - May 29, 2026PTGX
Protagonist Therapeutics, Inc
SaleDirect9K shares at avg. $99.64$897K - May 29, 2026PTGX
Protagonist Therapeutics, Inc
ExerciseDirect9K shares at avg. $11.80$106K - Feb 6, 2026PTGX
Protagonist Therapeutics, Inc
ExerciseDirect20K shares at avg. $8.31$166K - Feb 6, 2026PTGX
Protagonist Therapeutics, Inc
SaleDirect20K shares at avg. $83.68$1.7M
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 23, 2026 |  PTGX Protagonist Therapeutics, Inc | Sale | 9,000 | $117.94 | $1,061,460 | Direct |
| Jun 23, 2026 | PTGX Protagonist Therapeutics, Inc | Exercise | 9,000 | $16.54 | $148,860 | Direct |
| Jun 11, 2026 |  ANNX Annexon, Inc. | Award Stock Option (Right to Buy) | 65,000 | - | - | Direct |
| Jun 10, 2026 | PTGX Protagonist Therapeutics, Inc | Exercise | 6,000 | $16.54 | $99,240 | Direct |
| Jun 10, 2026 | PTGX Protagonist Therapeutics, Inc | Sale | 9,000 | $107.68 | $969,120 | Direct |
| Jun 10, 2026 | PTGX Protagonist Therapeutics, Inc | Exercise | 3,000 | $11.80 | $35,400 | Direct |
| May 29, 2026 | PTGX Protagonist Therapeutics, Inc | Sale | 9,000 | $99.64 | $896,760 | Direct |
| May 29, 2026 | PTGX Protagonist Therapeutics, Inc | Exercise | 9,000 | $11.80 | $106,200 | Direct |
| Feb 6, 2026 | PTGX Protagonist Therapeutics, Inc | Exercise | 20,000 | $8.31 | $166,200 | Direct |
| Feb 6, 2026 | PTGX Protagonist Therapeutics, Inc | Sale | 20,000 | $83.68 | $1,673,600 | Direct |
1-10 of 28 transactions