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

Azenta, Inc.

AZTA · Nasdaq · CIK 0000933974 · Healthcare · Medical Instruments & Supplies

INSIDER SIGNAL

56.2 / 100

2 buyers · 2 purchase transaction lines · $171.9K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleStrong
RecencyLow
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+14.0 / 35
Purchase size+9.5 / 25
Role+20.0 / 20
Recency+2.7 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 2 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Purchase activity is becoming less recent
  • ✓ Role scores high · most senior buyer: Director

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

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

AprMayJunJulAugSepOct
Starr EphraimSVP, Gen Counsel & Secretary
○●○
Madaus Martin DInterim CEO
○○
Pirogova OlgaSVP and CHRO
○○
MARTIN WILLIAM E. IIIPresident Multiomics
○○
Bello Erik J.VP Chief Accounting Officer
○
Lin Lawrence Y.EVP, CFO and Treasurer
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 1 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS2
PURCHASE CONCENTRATION95%Largest buyer: Cornog William L · $163.8K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-18–2026-05-18

Roles in the peak window: Director. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

56.2 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 56.5
  2. 56.4
  3. 56.4
  4. 56.3
  5. 56.2

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

2Purchases
0Sales
24Other Form 4 lines
26SEC filings · 365 days
BUYING2 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
+25.0%
3M
+44.8%
6M
+69.8%
12M
+17.0%

Volatility & liquidity

Volatility
58.9%
Beta
—
Avg daily value
USD 33.6M

Valuation

Market cap
USD 1.7B
P/E
—

Fundamentals

Profit margin
-9.4%
ROE
-3.2%
Industry
Medical Instruments & Supplies

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin, ROE · Fiscal year ended: 2025-09-30 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-03 · Status: PASS

Short interest

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

Shares short
5,319,092
Previous report
5,382,386
Avg daily volume
869,247
Days to cover
6.1

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
2026-07-31Starr EphraimPurchase (P)Common335USD 24.17USD 8,097SEC filing ↗
2026-05-18Cornog William LPurchase (P)Common10,000USD 16.38USD 163,800SEC filing ↗
2025-08-11Lin Lawrence Y.Purchase (P)Common2,500USD 27.96USD 69,900SEC filing ↗
2025-06-02Marotta JohnPurchase (P)Common1,000USD 25.99USD 25,990SEC filing ↗
2025-05-30Malus Alan JPurchase (P)Common12,000USD 26.65USD 319,800SEC filing ↗
2025-05-20Cornog William LPurchase (P)Common2,748USD 27.37USD 75,213SEC filing ↗
2025-05-19Cornog William LPurchase (P)Common4,152USD 26.98USD 112,021SEC filing ↗
2025-05-16Cornog William LPurchase (P)Common100USD 26.50USD 2,650SEC filing ↗
2025-01-31Zhou GingerPurchase (P)Common417USD 45.88USD 19,132SEC filing ↗
2024-11-19Marotta JohnPurchase (P)Common1,250USD 40.67USD 50,838SEC filing ↗
2024-11-19Madaus Martin DPurchase (P)Common4,940USD 40.77USD 201,404SEC filing ↗
2024-11-18Marotta JohnPurchase (P)Common12,717USD 39.48USD 502,066SEC filing ↗
2024-11-18HIRSCH DIDIERPurchase (P)Common1,000USD 39.50USD 39,500SEC filing ↗
2024-11-18Cornog William LPurchase (P)Common12,500USD 39.60USD 495,000SEC filing ↗
2022-08-19Robertson Lindon GPurchase (P)Common Stock4,350USD 57.62USD 250,647SEC filing ↗

Form 4 evidence

26 transaction lines in the latest 365-day window; 345 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-22Madaus Martin DTax withholding (F)Common1,456USD 34.28USD 49,912SEC filing ↗
2026-09-15Bello Erik J.Award / grant (A)Common4,586USD 0.00USD 0SEC filing ↗
2026-09-14Starr EphraimAward / grant (A)Common15,272USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (26 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-22Madaus Martin DTax withholding (F)Common1,456USD 34.28USD 49,912SEC filing ↗
2026-09-15Bello Erik J.Award / grant (A)Common4,586USD 0.00USD 0SEC filing ↗
2026-09-14Starr EphraimAward / grant (A)Common15,272USD 0.00USD 0SEC filing ↗
2026-09-14Pirogova OlgaAward / grant (A)Common15,272USD 0.00USD 0SEC filing ↗
2026-09-14Madaus Martin DAward / grant (A)Common36,653USD 0.00USD 0SEC filing ↗
2026-09-14MARTIN WILLIAM E. IIIAward / grant (A)Common15,272USD 0.00USD 0SEC filing ↗
2026-09-14Lin Lawrence Y.Award / grant (A)Common30,544USD 0.00USD 0SEC filing ↗
2026-08-09Pirogova OlgaTax withholding (F)Common1,085USD 32.04USD 34,763SEC filing ↗
2026-07-31Starr EphraimPurchase (P)Common335USD 24.17USD 8,097SEC filing ↗
2026-05-18Cornog William LPurchase (P)Common10,000USD 16.38USD 163,800SEC filing ↗
2026-05-15Starr EphraimTax withholding (F)Common3,621USD 16.02USD 58,008SEC filing ↗
2026-04-28MARTIN WILLIAM E. IIIAward / grant (A)Common17,790USD 24.24USD 431,230SEC filing ↗
2026-02-06Nova Tina SusanAward / grant (A)Common5,663USD 27.85USD 157,715SEC filing ↗
2026-02-05McLaughlin EricaAward / grant (A)Common5,663USD 27.85USD 157,715SEC filing ↗
2026-02-05Doshi DipalAward / grant (A)Common5,663USD 27.85USD 157,715SEC filing ↗
2026-02-05Casal FrankAward / grant (A)Common7,243USD 27.85USD 201,718SEC filing ↗
2025-11-24Marotta JohnAward / grant (A)Common118,194USD 0.00USD 0SEC filing ↗
2025-11-24Zhou GingerAward / grant (A)Common13,042USD 0.00USD 0SEC filing ↗
2025-11-24Starr EphraimAward / grant (A)Common34,235USD 0.00USD 0SEC filing ↗
2025-11-24Pirogova OlgaAward / grant (A)Common16,303USD 0.00USD 0SEC filing ↗
2025-11-24Marotta JohnAward / grant (A)Common122,269USD 0.00USD 0SEC filing ↗
2025-11-24Lin Lawrence Y.Award / grant (A)Common36,681USD 0.00USD 0SEC filing ↗
2025-11-14Zhou GingerTax withholding (F)Common1,118USD 29.75USD 33,260SEC filing ↗
2025-11-14Pirogova OlgaTax withholding (F)Common1,553USD 29.75USD 46,202SEC filing ↗
2025-11-14Marotta JohnTax withholding (F)Common10,980USD 29.75USD 326,655SEC filing ↗
2025-11-14Lin Lawrence Y.Tax withholding (F)Common3,039USD 29.75USD 90,410SEC 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 · —
TickerAZTA
CIK0000933974
SectorHealthcare
IndustryMedical Instruments & Supplies Yahoo Finance
SEC SIC3559 Special Industry Machinery, NEC
ExchangeNasdaq

Data coverage

Local Form 4 history345 transaction lines from 2020-01-02 to 2026-09-22
16 P purchase lines · 102 S sale lines · 227 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.