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

14 trades

$6.00M

Net Position

Net Seller

$6.00M

Companies Traded

PTGX, ARWR

Active Period

Jan 2022 – Feb 2026

14 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

9 · $4.73M

Total Shares Bought

Total Shares Sold

80,975

PTGX Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 6, 2026	Sell	20,000	$83.68	$1.67M	7,825
Oct 14, 2025	Sell	12,000	$81.62	$979.5K	13,130
Sep 24, 2025	Sell	4,000	$64.25	$257.0K	5,130
Aug 29, 2025	Sell	4,000	$59.25	$237.0K	9,130
Mar 19, 2025	Sell	4,000	$54.25	$217.0K	13,130
Sep 12, 2024	Sell	8,000	$45.00	$360.0K	12,000
Jul 26, 2024	Sell	8,000	$40.00	$320.0K	12,000
Jun 11, 2024	Sell	8,000	$35.00	$280.0K	12,000
Mar 1, 2024	Sell	12,975	$31.34	$406.6K	12,000

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

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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