There have been 50 recent insider transactions recorded for Lantheus Holdings, Inc. (LNTH), including 17 buys and 27 sells. Total insider buying was valued at $12.77M and total insider selling at $393.37M.
Notable insiders with recent activity include Marshall Robert J. Jr., Niedzwiecki Daniel, Morgan Amanda Michelle. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — LNTH
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-03-05 |
Marshall Robert J. Jr. |
CFO and Treasurer |
Tax Withholding of RSU |
1,182 |
$76.31 |
$90.2K |
122,792 |
| 2026-03-05 |
Niedzwiecki Daniel |
See Remarks |
Tax Withholding of RSU |
1,283 |
$76.31 |
$97.91K |
119,376 |
| 2026-03-05 |
Morgan Amanda Michelle |
Chief Commercial Officer |
Tax Withholding of RSU |
595 |
$76.31 |
$45.4K |
64,153 |
| 2026-03-05 |
Brown Kimberly |
Chief Accounting Officer |
Tax Withholding of RSU |
133 |
$76.31 |
$10.15K |
13,726 |
| 2026-03-05 |
Dinkelborg Ludger |
See Remarks |
RSU Award |
20,966 |
- |
- |
35,731 |
| 2026-03-02 |
Heino Mary Anne |
Executive Chair and CEO |
Tax Withholding of RSU |
41,916 |
$76.30 |
$3.2M |
323,124 |
| 2026-03-02 |
Marshall Robert J. Jr. |
CFO and Treasurer |
Tax Withholding of RSU |
10,652 |
$76.30 |
$812.75K |
85,972 |
| 2026-03-02 |
Niedzwiecki Daniel |
See Remarks |
Tax Withholding of RSU |
8,259 |
$76.30 |
$630.16K |
83,967 |
| 2026-03-02 |
Morgan Amanda Michelle |
Chief Commercial Officer |
Tax Withholding of RSU |
3,336 |
$76.30 |
$254.54K |
38,540 |
| 2025-12-15 |
Morgan Amanda Michelle |
Chief Commercial Officer |
Tax Withholding of RSU |
368 |
$66.57 |
$24.5K |
39,094 |
| 2025-11-17 |
Heino Mary Anne |
Executive Chair |
RSU Award |
26,325 |
$52.50 |
$1.38M |
26,325 |
| 2025-08-29 |
Marshall Robert J. Jr. |
CFO and Treasurer |
Tax Withholding of RSU |
727 |
$54.90 |
$39.91K |
88,133 |
| 2025-08-20 |
Farallon Partners L L C/ca |
10 Percent Owner, Other: Member of A Group Owning 10% |
Informative Sell |
3,365,000 |
$56.15 |
$188.94M |
3,477,227 |
| 2025-08-20 |
Patel Rajiv A |
Other: Member of A Group Owning 10% |
Informative Sell |
3,365,000 |
$56.15 |
$188.94M |
3,477,227 |
| 2025-08-19 |
Farallon Partners L L C/ca |
10 Percent Owner, Other: Member of A Group Owning 10% |
Informative Sell |
41,000 |
$55.34 |
$2.27M |
6,842,227 |
| 2025-08-19 |
Patel Rajiv A |
Other: Member of A Group Owning 10% |
Informative Sell |
41,000 |
$55.34 |
$2.27M |
6,842,227 |
| 2025-08-15 |
Brown Kimberly |
Chief Accounting Officer |
Tax Withholding of RSU |
463 |
$54.18 |
$25.09K |
7,701 |
| 2025-08-15 |
Dinkelborg Ludger |
See Remarks |
RSU Award |
14,765 |
- |
- |
14,765 |
| 2025-08-13 |
Blanchfield Paul |
President |
Informative Sell |
3,060 |
$53.57 |
$163.92K |
108,214 |
| 2025-08-06 |
Farallon Partners L L C/ca |
10 Percent Owner, Other: Member of A Group Owning 10% |
Unknown |
- |
- |
- |
6,883,227 |
| 2025-08-06 |
Patel Rajiv A |
Other: Member of A Group Owning 10% |
Unknown |
- |
- |
- |
6,883,227 |
| 2025-08-01 |
Dinkelborg Ludger |
See Remarks |
Unknown |
- |
- |
- |
- |
| 2025-07-15 |
Blanchfield Paul |
President |
Tax Withholding of RSU |
518 |
$81.26 |
$42.09K |
111,274 |
| 2025-06-13 |
Niedzwiecki Daniel |
See Remarks |
Informative Sell |
6,000 |
$78.74 |
$472.44K |
87,057 |
| 2025-06-09 |
Mchugh Julie |
Director |
Informative Sell |
5,192 |
$81.62 |
$423.77K |
25,962 |
| 2025-06-09 |
Marshall Robert J. Jr. |
CFO and Treasurer |
Option Exercise (Sell) |
14,773 |
$49.93 |
$737.62K |
- |
| 2025-06-05 |
Blanchfield Paul |
President |
Informative Sell |
6,599 |
$79.65 |
$525.61K |
111,792 |
| 2025-06-05 |
Niedzwiecki Daniel |
See Remarks |
Informative Sell |
6,000 |
$79.65 |
$477.9K |
93,057 |
| 2025-06-02 |
Heino Mary Anne |
Director |
Informative Sell |
22,926 |
$77.09 |
$1.77M |
318,650 |
| 2025-05-27 |
Heino Mary Anne |
Director |
Gift (Given) |
179,300 |
- |
- |
40,434 |
| 2025-05-15 |
Pruden Gary J |
Director |
Gift (Given) |
2,635 |
- |
- |
2,537 |
| 2025-05-14 |
Leno Sam R |
Director |
RSU Award |
4,543 |
$78.81 |
$358.03K |
4,543 |
| 2025-05-14 |
Thrall James H |
Director |
RSU Award |
4,543 |
$78.81 |
$358.03K |
4,543 |
| 2025-05-14 |
Mchugh Julie |
Director |
RSU Award |
4,543 |
$78.81 |
$358.03K |
4,543 |
| 2025-05-14 |
Eastland Julia Marie |
Director |
RSU Award |
2,537 |
- |
- |
3,882 |
| 2025-05-14 |
Heino Mary Anne |
Director |
RSU Award |
4,543 |
$78.81 |
$358.03K |
4,543 |
| 2025-05-14 |
Pruden Gary J |
Director |
RSU Award |
4,543 |
$78.81 |
$358.03K |
4,543 |
| 2025-05-14 |
Baylor-henry Minnie |
Director |
RSU Award |
4,543 |
$78.81 |
$358.03K |
4,543 |
| 2025-05-14 |
Ber Gerard |
Director |
RSU Award |
4,543 |
$78.81 |
$358.03K |
4,543 |
| 2025-05-14 |
Maeusli Heinz Christoph |
Director |
RSU Award |
4,543 |
$78.81 |
$358.03K |
4,543 |
| 2025-05-14 |
Morrow Phuong Khanh |
Director |
RSU Award |
2,537 |
- |
- |
3,100 |
| 2025-05-09 |
Ber Gerard |
Director |
Tax Withholding of RSU |
396 |
$81.74 |
$32.37K |
20,825 |
| 2025-04-17 |
Blanchfield Paul |
President |
Tax Withholding of RSU |
455 |
$101.32 |
$46.1K |
118,391 |
| 2025-04-17 |
Niedzwiecki Daniel |
See Remarks |
Tax Withholding of RSU |
178 |
$101.32 |
$18.03K |
99,057 |
| 2025-03-17 |
Marshall Robert J. Jr. |
CFO and Treasurer |
Informative Sell |
10,000 |
$100.52 |
$1.01M |
113,860 |
| 2025-03-13 |
Heino Mary Anne |
Director |
Gift (Given) |
8,618 |
- |
- |
- |
| 2025-03-05 |
Markison Brian A |
CEO |
RSU Award |
41,347 |
$100.48 |
$4.15M |
41,347 |
| 2025-03-05 |
Marshall Robert J. Jr. |
CFO and Treasurer |
RSU Award |
13,927 |
$100.48 |
$1.4M |
13,927 |
| 2025-03-05 |
Blanchfield Paul |
President |
RSU Award |
15,668 |
$100.48 |
$1.57M |
15,668 |
| 2025-03-05 |
Niedzwiecki Daniel |
See Remarks |
RSU Award |
13,927 |
$100.48 |
$1.4M |
13,927 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
