Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Lantheus Holdings, Inc.

LNTH · Nasdaq · CIK 0001521036 · Healthcare · Drug Manufacturers—Specialty & Generic

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

14 Form 4 transaction lines observed in the same window
0 sales · 14 option, withholding, award, gift or other lines

Last qualifying purchase2021-03-05 · Maeusli Heinz Christoph · $18.6K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Ber GerardDirector
○○
Heino Mary AnneExecutive Chair and CEO
○
McHugh JulieDirector
○
Morrow Phuong KhanhDirector
○
Maeusli Heinz ChristophDirector
○
LENO SAM RDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 7 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2021-03-05 · Maeusli Heinz Christoph.

Recent Form 4 activity

0Purchases
0Sales
34Other Form 4 lines
26SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER14 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
3,783,610
Previous report
4,036,832
Avg daily volume
1,049,857
Days to cover
3.6

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2021-03-05Maeusli Heinz ChristophPurchase (P)Common Stock1,000USD 18.60USD 18,600SEC filing ↗
2021-02-26Maeusli Heinz ChristophPurchase (P)Common Stock1,000USD 18.02USD 18,020SEC filing ↗
2021-02-19Maeusli Heinz ChristophPurchase (P)Common Stock1,000USD 19.39USD 19,390SEC filing ↗
2021-02-12Maeusli Heinz ChristophPurchase (P)Common Stock1,000USD 20.03USD 20,030SEC filing ↗
2021-02-05Maeusli Heinz ChristophPurchase (P)Common Stock1,000USD 17.94USD 17,940SEC filing ↗
2021-01-29Maeusli Heinz ChristophPurchase (P)Common Stock1,000USD 16.13USD 16,130SEC filing ↗
2021-01-22Maeusli Heinz ChristophPurchase (P)Common Stock1,000USD 15.29USD 15,290SEC filing ↗
2021-01-15Maeusli Heinz ChristophPurchase (P)Common Stock1,000USD 15.80USD 15,800SEC filing ↗

Form 4 evidence

34 transaction lines in the latest 365-day window; 485 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-31Marshall Robert J. Jr.Tax withholding (F)Common Stock721USD 100.96USD 72,792SEC filing ↗
2026-08-17Dinkelborg LudgerTax withholding (F)Common Stock2,536USD 100.91USD 255,908SEC filing ↗
2026-08-17Brown KimberlyTax withholding (F)Common Stock463USD 100.91USD 46,721SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-31Marshall Robert J. Jr.Tax withholding (F)Common Stock721USD 100.96USD 72,792SEC filing ↗
2026-08-17Dinkelborg LudgerTax withholding (F)Common Stock2,536USD 100.91USD 255,908SEC filing ↗
2026-08-17Brown KimberlyTax withholding (F)Common Stock463USD 100.91USD 46,721SEC filing ↗
2026-05-14Heino Mary AnneTax withholding (F)Common Stock1,227USD 96.67USD 118,614SEC filing ↗
2026-05-14Ber GerardTax withholding (F)Common Stock381USD 96.67USD 36,831SEC filing ↗
2026-05-14Thrall James HAward / grant (A)Common Stock4,137USD 0.00USD 0SEC filing ↗
2026-05-14Pruden Gary JAward / grant (A)Common Stock4,137USD 0.00USD 0SEC filing ↗
2026-05-14Morrow Phuong KhanhAward / grant (A)Common Stock4,137USD 0.00USD 0SEC filing ↗
2026-05-14McHugh JulieAward / grant (A)Common Stock4,137USD 0.00USD 0SEC filing ↗
2026-05-14Maeusli Heinz ChristophAward / grant (A)Common Stock4,137USD 0.00USD 0SEC filing ↗
2026-05-14LENO SAM RAward / grant (A)Common Stock4,137USD 0.00USD 0SEC filing ↗
2026-05-14EASTLAND JULIA MARIEAward / grant (A)Common Stock4,137USD 0.00USD 0SEC filing ↗
2026-05-14Ber GerardAward / grant (A)Common Stock4,137USD 0.00USD 0SEC filing ↗
2026-05-14Baylor-Henry MinnieAward / grant (A)Common Stock4,137USD 0.00USD 0SEC filing ↗
2026-04-17Niedzwiecki DanielTax withholding (F)Common Stock1,911USD 83.82USD 160,180SEC filing ↗
2026-03-05Niedzwiecki DanielTax withholding (F)Common Stock1,283USD 76.31USD 97,906SEC filing ↗
2026-03-05Niedzwiecki DanielAward / grant (A)Common Stock36,692USD 0.00USD 0SEC filing ↗
2026-03-05Morgan Amanda MichelleTax withholding (F)Common Stock595USD 76.31USD 45,404SEC filing ↗
2026-03-05Morgan Amanda MichelleAward / grant (A)Common Stock26,208USD 0.00USD 0SEC filing ↗
2026-03-05Marshall Robert J. Jr.Tax withholding (F)Common Stock1,182USD 76.31USD 90,198SEC filing ↗
2026-03-05Marshall Robert J. Jr.Award / grant (A)Common Stock38,002USD 0.00USD 0SEC filing ↗
2026-03-05Dinkelborg LudgerAward / grant (A)Common Stock20,966USD 0.00USD 0SEC filing ↗
2026-03-05Brown KimberlyTax withholding (F)Common Stock133USD 76.31USD 10,149SEC filing ↗
2026-03-05Brown KimberlyAward / grant (A)Common Stock6,158USD 0.00USD 0SEC filing ↗
2026-03-02Niedzwiecki DanielTax withholding (F)Common Stock8,259USD 76.30USD 630,162SEC filing ↗
2026-03-02Niedzwiecki DanielAward / grant (A)Common Stock5,169USD 0.00USD 0SEC filing ↗
2026-03-02Morgan Amanda MichelleTax withholding (F)Common Stock3,336USD 76.30USD 254,537SEC filing ↗
2026-03-02Morgan Amanda MichelleAward / grant (A)Common Stock2,782USD 0.00USD 0SEC filing ↗
2026-03-02Marshall Robert J. Jr.Tax withholding (F)Common Stock10,652USD 76.30USD 812,748SEC filing ↗
2026-03-02Marshall Robert J. Jr.Award / grant (A)Common Stock8,491USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerLNTH
CIK0001521036
SectorHealthcare
IndustryDrug Manufacturers—Specialty & Generic Yahoo Finance
SEC SIC2835 In Vitro & In Vivo Diagnostic Substances
ExchangeNasdaq

Data coverage

Local Form 4 history485 transaction lines from 2020-02-19 to 2026-08-31
8 P purchase lines · 233 S sale lines · 244 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.