Stocks › LNTH
Lantheus Holdings, Inc.
LNTH·Nasdaq·
United States·USD
United States·USD$99.95
-0.24 (-0.24%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
LNTH
Lantheus Holdings, Inc. · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
LNTHS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of LNTH by members of U.S. Congress · 4 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Gilbert Ray Cisneros, Jr.House · D · CA |
LNTHLantheus Holdings, Inc. · Stock |
Purchase $1,001 - $15,000 |
Feb 11, 2025 | Jan 28, 2025 | Filing ↗ |
| Gilbert Ray Cisneros, Jr.House · D · CA |
LNTHLantheus Holdings, Inc. · Stock |
Purchase $1,001 - $15,000 |
Feb 11, 2025 | Jan 13, 2025 | Filing ↗ |
| Gilbert Ray Cisneros, Jr.House · D · CA |
LNTHLantheus Holdings, Inc. · Stock |
Purchase $1,001 - $15,000 |
Feb 11, 2025 | Jan 7, 2025 | Filing ↗ |
| Gilbert Ray Cisneros, Jr.House · D · CA |
LNTHLantheus Holdings, Inc. · Stock |
Purchase $1,001 - $15,000 |
Feb 11, 2025 | Jan 8, 2025 | Filing ↗ |
Whale Activity
Position changes in LNTH reported for 2026-06-30 by 18 tracked institutional filers
- Increased8
- New1
- Held0
- Decreased2
- Closed1
- No prior filing6
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 8.4M | $931.6M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.2M | $359.3M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.9M | $325.3M | increased |
| CITADEL ADVISORS LLC | 1.4M | $152.7M | increased |
| Point72 Asset Management, L.P. | 629.8K | $69.9M | decreased |
| BRIGADE CAPITAL MANAGEMENT, LP | 43.4M | $62.5M | — |
| MILLENNIUM MANAGEMENT LLC | 31.0M | $45.3M | increased |
| MILLENNIUM MANAGEMENT LLC | 336.4K | $37.3M | increased |
| BRIGADE CAPITAL MANAGEMENT, LP | 328.7K | $36.5M | — |
| BlackRock, Inc. | 11.3M | $16.5M | increased |
| Bridgewater Associates, LP | 65.9K | $7.3M | increased |
| Expect Equity LLC | 32.1K | $3.6M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by LNTH insiders, by quarter · Form 4
Recent Insider Transactions
769 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Ber GerardDirector | Tax withholding | −381 | $96.67 | $37K | May 14, 2026 | Form 4 ↗ |
| Heino Mary AnneExecutive Chair and CEO · Director | Tax withholding | −1,227 | $96.67 | $119K | May 14, 2026 | Form 4 ↗ |
| McHugh JulieDirector | Grant / award | +4,137 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Morrow Phuong KhanhDirector | Grant / award | +4,137 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Maeusli Heinz ChristophDirector | Grant / award | +4,137 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| LENO SAM RDirector | Grant / award | +4,137 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Pruden Gary JDirector | Grant / award | +4,137 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Baylor-Henry MinnieDirector | Grant / award | +4,137 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Ber GerardDirector | Grant / award | +4,137 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Thrall James HDirector | Grant / award | +4,137 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| EASTLAND JULIA MARIEDirector | Grant / award | +4,137 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Niedzwiecki DanielSee Remarks | Tax withholding | −1,911 | $83.82 | $160K | Apr 17, 2026 | Form 4 ↗ |
| Niedzwiecki DanielSee Remarks | Tax withholding | −1,283 | $76.31 | $98K | Mar 5, 2026 | Form 4 ↗ |
| Niedzwiecki DanielSee Remarks | Grant / award | +36.7K | $0.00 | $0 | Mar 5, 2026 | Form 4 ↗ |
| Dinkelborg LudgerSee Remarks | Grant / award | +21.0K | $0.00 | $0 | Mar 5, 2026 | Form 4 ↗ |
| Marshall Robert J. Jr.CFO and Treasurer | Tax withholding | −1,182 | $76.31 | $90K | Mar 5, 2026 | Form 4 ↗ |
| Marshall Robert J. Jr.CFO and Treasurer | Grant / award | +38.0K | $0.00 | $0 | Mar 5, 2026 | Form 4 ↗ |
| Brown KimberlyChief Accounting Officer | Tax withholding | −133 | $76.31 | $10K | Mar 5, 2026 | Form 4 ↗ |
| Brown KimberlyChief Accounting Officer | Grant / award | +6,158 | $0.00 | $0 | Mar 5, 2026 | Form 4 ↗ |
| Morgan Amanda MichelleChief Commercial Officer | Tax withholding | −595 | $76.31 | $45K | Mar 5, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding LNTH · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF iShares Trust | 2.2M | $247.2M | 0.20% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2.1M | $229.2M | 0.01% | Jun 30, 2026 |
| Avantis U.S. Small Cap Value ETF American Century ETF Trust | 1.9M | $190.5M | 0.70% | May 31, 2026 |
| iShares Russell 2000 ETF iShares Trust | 1.7M | $186.1M | 0.22% | Jun 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 1.5M | $165.7M | 0.09% | Jun 30, 2026 |
| Janus Henderson Enterprise Fund Janus Investment Fund | 1.1M | $125.7M | 0.56% | Jun 30, 2026 |
| Janus Henderson Triton Fund Janus Investment Fund | 912.3K | $101.2M | 1.71% | Jun 30, 2026 |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 860.8K | $95.5M | 0.20% | Jun 30, 2026 |
| Strategic Advisers Fidelity U.S. Total Stock Fund Fidelity Rutland Square Trust II | 842.2K | $83.6M | 0.03% | May 31, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 746.6K | $82.8M | 0.08% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list LNTH's shares (CUSIP 516544103), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Farallon Capital F5 Master I, L.P.SCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 13, 2026 · ↗ - Farallon Capital (AM) Investors, L.P.SCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 13, 2026 · ↗ - Farallon Capital Offshore Investors II, L.P.SCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 13, 2026 · ↗ - Four Crossings Institutional Partners V, L.P.SCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 13, 2026 · ↗ - Farallon Capital Institutional Partners III, L.P.SCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 13, 2026 · ↗ - Farallon Capital Institutional Partners II, L.P.SCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 13, 2026 · ↗ - Farallon Capital Institutional Partners, L.P.SCHEDULE 13G/A · passive (13G) · 0 shares0.0%
Aug 13, 2026 · ↗ - Wehrly, Mark C.SCHEDULE 13G/A · passive (13G) · 5.6M shares8.6%
Aug 13, 2026 · ↗ - Warren, John R.SCHEDULE 13G/A · passive (13G) · 5.6M shares8.6%
Aug 13, 2026 · ↗ - Spokes, Andrew J. M.SCHEDULE 13G/A · passive (13G) · 5.6M shares8.6%
Aug 13, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming lantheus as client
- LANTHEUS HOLDINGS, INC.LANTHEUS HOLDINGS, INC. · 2026 Q2$332K
Filing ↗ - TARPLIN, DOWNS & YOUNG, LLCLANTHEUS · 2026 Q2 · MMM$60K
Filing ↗ - LANTHEUS HOLDINGS, INC.LANTHEUS HOLDINGS, INC. · 2026 Q1$330K
Filing ↗ - TARPLIN, DOWNS & YOUNG, LLCLANTHEUS · 2026 Q1 · MMM$60K
Filing ↗ - LANTHEUS HOLDINGS, INC.LANTHEUS HOLDINGS, INC. · 2026 Q1 · HCR, ENG, MMM—
Filing ↗
Government Contracts
Federal awards to Lantheus Holdings, Inc. · USAspending
No federal contract awards found for Lantheus Holdings, Inc..
U.S. Patents
Recent USPTO applications naming Lantheus Holdings, Inc.
No USPTO patent applications found for Lantheus Holdings, Inc..
Annual Financials
From LNTH's 10-K filings · XBRL
No annual XBRL figures on record for LNTH. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in LNTH's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 8.01Other eventsOct 2, 2026
EDGAR ↗ - 8-K · Items 8.01Other eventsSep 21, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsAug 6, 2026
EDGAR ↗ - 8-K · Items 1.01, 5.02, 9.01Material agreement · Officer / director changeAug 4, 2026
EDGAR ↗ - 8-K · Items 7.01, 8.01, 9.01Reg FD disclosure · Other eventsAug 3, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsMay 7, 2026
EDGAR ↗ - 8-K · Items 3.03, 5.02, 5.03, 5.07, 9.01Modification of rights · Officer / director change · Bylaw amendmentMay 1, 2026
EDGAR ↗
About Lantheus Holdings, Inc.
From SEC EDGAR company records
Industry (SIC 2835)In Vitro & In Vivo Diagnostic Substances
SectorHealthcare
HeadquartersBEDFORD, MA
IncorporatedDE
SEC CIK0001521036 ↗
Former namesLantheus MI Holdings, Inc.