Stock Trading Canary

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

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US · SEC FORM 4

ALIGN TECHNOLOGY INC

ALGN · Nasdaq · CIK 0001097149 · Healthcare · Medical Instruments & Supplies

INSIDER SIGNAL

No active buy signal

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

10 Form 4 transaction lines observed in the same window
0 sales · 10 option, withholding, award, gift or other lines

Last qualifying purchase2025-08-01 · HOGAN JOSEPH M · $996.2K

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
Vitalone Britt J.Director
○
SIEGEL SUSAN EDirector
○
Saia Andrea LynnDirector
○
Poul MojdehDirector
○
Myong AnneDirector
○
LARKIN C RAYMOND JRDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 4 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: 2025-08-01 · HOGAN JOSEPH M.

Recent Form 4 activity

0Purchases
1Sales
18Other Form 4 lines
15SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER10 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
-9.2%
3M
-23.3%
6M
-15.3%
12M
—

Volatility & liquidity

Volatility
39.5%
Beta
—
Avg daily value
—

Valuation

Market cap
—
P/E
—

Fundamentals

Profit margin
10.2%
ROE
10.1%
Industry
Medical Instruments & Supplies

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
4,202,648
Previous report
3,901,037
Avg daily volume
976,621
Days to cover
4.3

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
2025-08-01HOGAN JOSEPH MPurchase (P)Common Stock7,576USD 131.49USD 996,168SEC filing ↗
2025-07-31Coletti Julie AnnPurchase (P)Common Stock42USD 109.66USD 4,606SEC filing ↗
2024-08-15LARKIN C RAYMOND JRPurchase (P)Common Stock6,500USD 235.33USD 1,529,645SEC filing ↗
2023-11-09HOGAN JOSEPH MPurchase (P)Common Stock5,194USD 192.50USD 999,845SEC filing ↗
2023-10-31HOGAN JOSEPH MPurchase (P)Common Stock5,319USD 188.00USD 999,972SEC filing ↗
2023-05-30Dallas Kevin JPurchase (P)Common Stock7,000USD 285.26USD 1,996,820SEC filing ↗
2023-02-08Morici JohnPurchase (P)Common Stock587USD 341.84USD 200,660SEC filing ↗
2023-02-08HOGAN JOSEPH MPurchase (P)Common Stock2,928USD 341.50USD 999,912SEC filing ↗
2022-11-02Thaler Warren SPurchase (P)Common Stock1,050USD 191.21USD 200,768SEC filing ↗
2022-11-02Myong AnnePurchase (P)Common Stock1,500USD 190.26USD 285,390SEC filing ↗
2022-11-02HOGAN JOSEPH MPurchase (P)Common Stock10,600USD 188.58USD 1,998,948SEC filing ↗
2022-05-13LARKIN C RAYMOND JRPurchase (P)Common Stock1,000USD 264.42USD 264,420SEC filing ↗
2022-05-04HOGAN JOSEPH MPurchase (P)Common Stock6,700USD 298.48USD 1,999,816SEC filing ↗

Form 4 evidence

19 transaction lines in the latest 365-day window; 361 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-20Vitalone Britt J.Option exercise / conversion (M)Common Stock1,443USD 0.00USD 0SEC filing ↗
2026-05-20Saia Andrea LynnOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
2026-05-20SIEGEL SUSAN EOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (19 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-20Vitalone Britt J.Option exercise / conversion (M)Common Stock1,443USD 0.00USD 0SEC filing ↗
2026-05-20Saia Andrea LynnOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
2026-05-20SIEGEL SUSAN EOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
2026-05-20Poul MojdehOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
2026-05-20Myong AnneOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
2026-05-20MORROW GEORGE JOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
2026-05-20LARKIN C RAYMOND JROption exercise / conversion (M)Common Stock2,326USD 0.00USD 0SEC filing ↗
2026-05-20LACOB JOSEPHOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
2026-05-20Dallas Kevin JOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
2026-05-20Conroy Kevin TOption exercise / conversion (M)Common Stock1,745USD 0.00USD 0SEC filing ↗
2026-02-20Morici JohnOption exercise / conversion (M)Common Stock7,848USD 0.00USD 0SEC filing ↗
2026-02-20Morici JohnTax withholding (F)Common Stock2,549USD 190.02USD 484,361SEC filing ↗
2026-02-20Hockridge Stuart AOption exercise / conversion (M)Common Stock4,310USD 0.00USD 0SEC filing ↗
2026-02-20Hockridge Stuart ATax withholding (F)Common Stock1,210USD 190.02USD 229,924SEC filing ↗
2026-02-20HOGAN JOSEPH MOption exercise / conversion (M)Common Stock40,248USD 0.00USD 0SEC filing ↗
2026-02-20HOGAN JOSEPH MTax withholding (F)Common Stock16,107USD 190.02USD 3,060,652SEC filing ↗
2026-02-20Coletti Julie AnnOption exercise / conversion (M)Common Stock5,864USD 0.00USD 0SEC filing ↗
2026-02-20Coletti Julie AnnTax withholding (F)Common Stock1,718USD 190.02USD 326,454SEC filing ↗
2026-02-18Morici JohnSale (S)Common Stock7,969USD 189.31USD 1,508,611SEC 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 · —
TickerALGN
CIK0001097149
SectorHealthcare
IndustryMedical Instruments & Supplies Yahoo Finance
SEC SIC3842 Orthopedic, Prosthetic & Surgical Appliances & Supplies
ExchangeNasdaq

Data coverage

Local Form 4 history361 transaction lines from 2020-02-03 to 2026-05-20
15 P purchase lines · 158 S sale lines · 188 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.