William D. Waddill

PTGX

William D. Waddill serves as director at Protagonist Therapeutics, Inc. (PTGX). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

6 trades

$2.94M

Net Position

Net Seller

$2.94M

Companies Traded

PTGX, ARWR

Active Period

Jan 2022 – Feb 2026

6 total trades

Most Recent

Sell PTGX

Feb 6, 2026 · $1.67M

William D. Waddill's Insider Trading at Protagonist Therapeutics, Inc. (PTGX)

Buys

0 · $0.00

Sells

1 · $1.67M

Total Shares Bought

Total Shares Sold

20,000

PTGX Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Feb 6, 2026↗	Sell	20,000	$83.68	$1.67M	7,825

William D. Waddill's Insider Trading at Arrowhead Pharmaceuticals, Inc. (ARWR)

Buys

0 · $0.00

Sells

5 · $1.27M

Total Shares Bought

Total Shares Sold

27,496

ARWR Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value
Dec 19, 2025↗	Sell	8,367	$67.65	$566.0K
Dec 16, 2024↗	Sell	7,495	$21.97	$164.7K
Jan 11, 2024↗	Sell	3,934	$38.07	$149.8K
Jan 9, 2023↗	Sell	3,200	$30.00	$96.0K
Jan 3, 2022↗	Sell	4,500	$64.72	$291.2K