LNTH

insider transactions

Lantheus Holdings, Inc. — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

No open-market buys or sells this period. The trades below are grants, option exercises and gifts, which carry no market price.

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Other·F
May 14, 26

Mary Anne Heino KEY

Executive Chair and CEO

$118.6K

1.2K sh · $96.67

Own -0%
Other·F
May 14, 26

Gerard Ber

Director

$36.8K

381 sh · $96.67

Own -1%
Grant·A
May 14, 26

Julie Mchugh

Director

$0

4.1K sh

Own +16%
Grant·A
May 14, 26

Phuong Khanh Morrow

Director

$0

4.1K sh

Own +133%
Grant·A
May 14, 26

Heinz Christoph Maeusli

Director

$0

4.1K sh

Own +16%
Grant·A
May 14, 26

Gary J Pruden

Director

$0

4.1K sh

Own +163%
Grant·A
May 14, 26

James H Thrall

Director

$0

4.1K sh

Own +12%
Grant·A
May 14, 26

Sam R Leno

Director

$0

4.1K sh

Own +7%
Grant·A
May 14, 26

Julia Marie Eastland

Director

$0

4.1K sh

Own +107%
Grant·A
May 14, 26

Gerard Ber

Director

$0

4.1K sh

Own +18%
Grant·A
May 14, 26

Minnie Baylor-Henry

Director

$0

4.1K sh

Own +42%
Other·F
Apr 17, 26

Daniel Niedzwiecki

Chief Administrative Officer,…

$160.2K

1.9K sh · $83.82

Own -2%

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
May 14, 2026	Mary Anne Heino KEY	Executive Chair and CEO	Other F	1.2K	-0%	$96.67	$118.6K
May 14, 2026	Gerard Ber	Director	Other F	381	-1%	$96.67	$36.8K
May 14, 2026	Julie Mchugh	Director	Grant A	4.1K	+16%	—	$0
May 14, 2026	Phuong Khanh Morrow	Director	Grant A	4.1K	+133%	—	$0
May 14, 2026	Heinz Christoph Maeusli	Director	Grant A	4.1K	+16%	—	$0
May 14, 2026	Gary J Pruden	Director	Grant A	4.1K	+163%	—	$0
May 14, 2026	James H Thrall	Director	Grant A	4.1K	+12%	—	$0
May 14, 2026	Sam R Leno	Director	Grant A	4.1K	+7%	—	$0
May 14, 2026	Julia Marie Eastland	Director	Grant A	4.1K	+107%	—	$0
May 14, 2026	Gerard Ber	Director	Grant A	4.1K	+18%	—	$0
May 14, 2026	Minnie Baylor-Henry	Director	Grant A	4.1K	+42%	—	$0
Apr 17, 2026	Daniel Niedzwiecki	Chief Administrative Officer, General Counsel and Corporate Secretary	Other F	1.9K	-2%	$83.82	$160.2K

About LNTH insider trading

This page tracks insider transactions for Lantheus Holdings, Inc. (LNTH) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.