// company-profile
Lantheus Holdings, Inc.
LNTHExchangeNasdaqSectorIn Vitro & In Vivo Diagnostic SubstancesInc.DEFilings158Insiders39
// api This Lantheus Holdings, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Lantheus Holdings, Inc. insiders bought $0 (9 transactions) and sold $316K (3 transactions).
- Most active insider: Ber Gerard with 2 transactions totaling $37K.
- Largest single sale: $160K by Niedzwiecki Daniel on Apr 17, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Lantheus Holdings, Inc. as of 2026-03-31
Total reported AUM
$4.97B
QoQ change
+37.0%
Reporting period
2026-03-31
#1
FARALLON CAPITAL MANAGEMENT LLC
CIK 909661
$423.5M
5.6M shares
#2
BlackRock, Inc.
CIK 2012383
$380.7M
5.0M shares
#3
JANUS HENDERSON GROUP PLC
CIK 1274173
$338.1M
4.5M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 14, 2026 | Ber Gerard | LNTH | Tax Withholding | 381 | $96.67 | $37K |
| May 14, 2026 | Thrall James H | LNTH | Award | 4,137 | $0.00 | $0K |
| May 14, 2026 | Baylor-Henry Minnie | LNTH | Award | 4,137 | $0.00 | $0K |
| May 14, 2026 | Ber Gerard | LNTH | Award | 4,137 | $0.00 | $0K |
| May 14, 2026 | Heino Mary Anne | LNTH | Tax Withholding | 1,227 | $96.67 | $119K |
45 more transactions hidden
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