HEIDEN WILLIAM K

MGNX

HEIDEN WILLIAM K serves as Director at MacroGenics, Inc. (MGNX). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

2 trades

$175.8K

Total Sells

0 trades

$0.00

Net Position

Net Buyer

$175.8K

Companies Traded

MGNX, ATRA

Active Period

Nov 2023 – Aug 2025

2 total trades

Most Recent

Buy MGNX

Aug 21, 2025 · $150.5K

HEIDEN WILLIAM K's Insider Trading at MacroGenics, Inc. (MGNX)

Buys

1 · $150.5K

Sells

0 · $0.00

Total Shares Bought

100,000

Total Shares Sold

MGNX Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Aug 21, 2025	Buy	100,000	$1.51	$150.5K	111,000

HEIDEN WILLIAM K's Insider Trading at Atara Biotherapeutics, Inc. (ATRA)

Buys

1 · $25.3K

Sells

0 · $0.00

Total Shares Bought

100,000

Total Shares Sold

ATRA Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Nov 10, 2023	Buy	100,000	$0.25	$25.3K	0

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