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

Alkermes plc.

ALKS · Nasdaq · CIK 0001520262 · Healthcare · Drug Manufacturers—Specialty & Generic

INSIDER SIGNAL

No active buy signal

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

45 Form 4 transaction lines observed in the same window
17 sales · 28 option, withholding, award, gift or other lines

Last qualifying purchase2022-11-14 · Daglio David Angelo Jr. · $815.9K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
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
Hopkinson Craig C.EVP R&D, Chief Medical Officer
○▼○▼○▼○▼○▼
Gaffin David JosephEVP, CLO, Alkermes, Inc.
▼▼▼▼▼▼
snyderman nancy lynn MDDirector
○○○▼
Wright Christopher IDirector
○○▼
Parisi Samuel JosephVP, Finance (Interim PAO)
○▼
Wilson Frank AndersDirector
○○
● 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: 2022-11-14 · Daglio David Angelo Jr..

Recent Form 4 activity

0Purchases
33Sales
87Other Form 4 lines
58SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING17 sale line(s) · context only
OTHER28 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 provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-12.4%
3M
-24.2%
6M
+20.0%
12M
—

Volatility & liquidity

Volatility
40.5%
Beta
—
Avg daily value
—

Valuation

Market cap
—
P/E
—

Fundamentals

Profit margin
16.4%
ROE
13.3%
Industry
Drug Manufacturers—Specialty & Generic

Market data

Price data up to: 2026-10-02 · Price source: OpenBB/yfinance · From SEC filings: Profit margin, ROE · Fiscal year ended: 2025-12-31 · Status: PASS

Short interest

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

Shares short
17,821,179
Previous report
15,156,775
Avg daily volume
2,839,345
Days to cover
6.3

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
2022-11-14Daglio David Angelo Jr.Purchase (P)Ordinary Shares35,000USD 23.31USD 815,850SEC filing ↗
2022-03-04snyderman nancy lynn MDPurchase (P)Ordinary Shares427USD 23.43USD 10,005SEC filing ↗
2021-08-23Alva Emily PetersonPurchase (P)Ordinary Shares1,650USD 30.22USD 49,868SEC filing ↗
2021-08-02MCKEON BRIAN PPurchase (P)Ordinary Shares10,000USD 26.43USD 264,300SEC filing ↗
2020-02-24Wysenski NancyPurchase (P)Ordinary Shares6,940USD 19.65USD 136,371SEC filing ↗

Form 4 evidence

120 transaction lines in the latest 365-day window; 774 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-08Reed JoshuaOption exercise / conversion (M)Ordinary Shares9,164USD —USD —SEC filing ↗
2026-10-08Reed JoshuaTax withholding (F)Ordinary Shares4,069USD 40.11USD 163,208SEC filing ↗
2026-10-02Gaffin David JosephSale (S)Ordinary Shares2,034USD 41.03USD 83,455SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-08Reed JoshuaOption exercise / conversion (M)Ordinary Shares9,164USD —USD —SEC filing ↗
2026-10-08Reed JoshuaTax withholding (F)Ordinary Shares4,069USD 40.11USD 163,208SEC filing ↗
2026-10-02Gaffin David JosephSale (S)Ordinary Shares2,034USD 41.03USD 83,455SEC filing ↗
2026-09-03Gaffin David JosephSale (S)Ordinary Shares2,034USD 48.01USD 97,652SEC filing ↗
2026-09-01Hopkinson Craig C.Sale (S)Ordinary Shares9,000USD 46.99USD 422,910SEC filing ↗
2026-09-01Hopkinson Craig C.Option exercise / conversion (M)Ordinary Shares5,000USD 24.59USD 122,950SEC filing ↗
2026-08-17Nichols Christian ToddSale (S)Ordinary Shares7,576USD 49.23USD 372,969SEC filing ↗
2026-08-03snyderman nancy lynn MDSale (S)Ordinary Shares44,472USD 50.35USD 2,239,165SEC filing ↗
2026-08-03snyderman nancy lynn MDOption exercise / conversion (M)Ordinary Shares44,472USD 46.72USD 2,077,732SEC filing ↗
2026-08-03Hopkinson Craig C.Sale (S)Ordinary Shares9,000USD 48.58USD 437,220SEC filing ↗
2026-08-03Hopkinson Craig C.Option exercise / conversion (M)Ordinary Shares5,000USD 24.48USD 122,404SEC filing ↗
2026-08-03Gaffin David JosephSale (S)Ordinary Shares2,034USD 48.58USD 98,812SEC filing ↗
2026-07-06Gaffin David JosephSale (S)Ordinary Shares2,034USD 54.03USD 109,897SEC filing ↗
2026-07-01Hopkinson Craig C.Sale (S)Ordinary Shares9,000USD 51.51USD 463,609SEC filing ↗
2026-07-01Hopkinson Craig C.Option exercise / conversion (M)Ordinary Shares5,000USD 19.34USD 96,700SEC filing ↗
2026-06-12Wright Christopher ISale (S)Ordinary Shares2,000USD 45.10USD 90,200SEC filing ↗
2026-06-04Gaffin David JosephSale (S)Ordinary Shares2,034USD 43.05USD 87,564SEC filing ↗
2026-06-01Hopkinson Craig C.Sale (S)Ordinary Shares9,000USD 41.67USD 375,030SEC filing ↗
2026-06-01Hopkinson Craig C.Option exercise / conversion (M)Ordinary Shares5,000USD 19.34USD 96,700SEC filing ↗
2026-05-29Parisi Samuel JosephSale (S)Ordinary Shares16,217USD 42.36USD 686,952SEC filing ↗
2026-05-29Parisi Samuel JosephOption exercise / conversion (M)Ordinary Shares16,217USD 19.48USD 315,977SEC filing ↗
2026-05-21snyderman nancy lynn MDOption exercise / conversion (M)Ordinary Shares6,142USD —USD —SEC filing ↗
2026-05-21snyderman nancy lynn MDTax withholding (F)Ordinary Shares1,475USD 36.95USD 54,501SEC filing ↗
2026-05-21Wright Christopher IOption exercise / conversion (M)Ordinary Shares6,142USD —USD —SEC filing ↗
2026-05-21Wright Christopher ITax withholding (F)Ordinary Shares1,475USD 36.95USD 54,501SEC filing ↗
2026-05-21Wilson Frank AndersOption exercise / conversion (M)Ordinary Shares6,142USD —USD —SEC filing ↗
2026-05-21Wilson Frank AndersTax withholding (F)Ordinary Shares1,475USD 36.95USD 54,501SEC filing ↗
2026-05-21MCKEON BRIAN POption exercise / conversion (M)Ordinary Shares6,142USD —USD —SEC filing ↗
2026-05-21MCKEON BRIAN PTax withholding (F)Ordinary Shares1,475USD 36.95USD 54,501SEC filing ↗
2026-05-21Lurker NancyOption exercise / conversion (M)Ordinary Shares6,142USD —USD —SEC 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 · —
TickerALKS
CIK0001520262
SectorHealthcare
IndustryDrug Manufacturers—Specialty & Generic Yahoo Finance
SEC SIC2834 Pharmaceutical Preparations
ExchangeNasdaq

Data coverage

Local Form 4 history774 transaction lines from 2020-02-16 to 2026-10-08
5 P purchase lines · 109 S sale lines · 660 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.