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

ANGIODYNAMICS INC

ANGO · Nasdaq · CIK 0001275187 · Healthcare · Medical Instruments & Supplies

INSIDER SIGNAL

No active buy signal

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

41 Form 4 transaction lines observed in the same window
1 sales · 40 option, withholding, award, gift or other lines

Last qualifying purchase2025-10-21 · Weiss Lawrence T · $118.1K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
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
Nighan Warren JRSVP Quality and Regulatory
○○○○○○▼
Trowbridge Stephen AEVP and CFO
○○○○○○
Piccinini LauraSVP International
○○○○○○
Clemmer James CPresident and CEO
○○○○○○
Campbell Chad ThomasSVP/GM, Vascular Access
○○○○○○
Weiss Lawrence TSVP, Chief Legal Officer
○○
● 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: 2025-10-21 · Weiss Lawrence T.

Recent Form 4 activity

1Purchases
1Sales
40Other Form 4 lines
25SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER40 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
-3.3%
3M
+16.4%
6M
+46.6%
12M
—

Volatility & liquidity

Volatility
42.2%
Beta
0.33
Avg daily value
USD 7.5M

Valuation

Market cap
USD 635.4M
P/E
—

Fundamentals

Profit margin
-11.5%
ROE
-21.5%
Industry
Medical Instruments & Supplies

Market data

Price data up to: 2026-10-03 · Price source: OpenBB/yfinance · From SEC filings: Profit margin, ROE · Fiscal year ended: 2026-05-31 · From Yahoo Finance: Market cap · Status: PASS

Short interest

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

Shares short
1,294,595
Previous report
1,343,344
Avg daily volume
581,401
Days to cover
2.2

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
2025-10-21Weiss Lawrence TPurchase (P)Common Stock10,000USD 11.81USD 118,100SEC filing ↗
2025-10-13Trowbridge Stephen APurchase (P)Common Stock890USD 11.16USD 9,932SEC filing ↗
2025-10-09Clemmer James CPurchase (P)Common Stock10,000USD 11.15USD 111,500SEC filing ↗
2024-10-10Nighan Warren JRPurchase (P)Common Stock100USD 6.08USD 608SEC filing ↗
2024-10-08Trowbridge Stephen APurchase (P)Common Stock1,700USD 5.86USD 9,962SEC filing ↗
2024-10-07Nighan Warren JRPurchase (P)Common Stock768USD 6.09USD 4,677SEC filing ↗
2024-10-07Clemmer James CPurchase (P)Common Stock20,000USD 6.03USD 120,600SEC filing ↗
2024-04-08Clemmer James CPurchase (P)Common Stock10,000USD 6.70USD 67,000SEC filing ↗
2022-10-12Trowbridge Stephen APurchase (P)Common Stock1,083USD 13.82USD 14,967SEC filing ↗
2022-10-10Clemmer James CPurchase (P)Common Stock10,000USD 15.00USD 150,000SEC filing ↗
2022-01-12Trowbridge Stephen APurchase (P)Common Stock1,000USD 22.64USD 22,640SEC filing ↗
2022-01-11Clemmer James CPurchase (P)Common Stock10,000USD 22.84USD 228,400SEC filing ↗
2020-08-11Trowbridge Stephen APurchase (P)Common Stock1,013USD 9.38USD 9,502SEC filing ↗
2020-07-31Clemmer James CPurchase (P)Common Stock40,000USD 8.26USD 330,400SEC filing ↗

Form 4 evidence

42 transaction lines in the latest 365-day window; 327 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-30Nighan Warren JRSale (S)Common Stock23,370USD 14.72USD 344,006SEC filing ↗
2026-07-22Trowbridge Stephen AOption exercise / conversion (M)Common Stock16,296USD 0.00USD 0SEC filing ↗
2026-07-22Trowbridge Stephen ATax withholding (F)Common Stock8,319USD 13.82USD 114,969SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-30Nighan Warren JRSale (S)Common Stock23,370USD 14.72USD 344,006SEC filing ↗
2026-07-22Trowbridge Stephen AOption exercise / conversion (M)Common Stock16,296USD 0.00USD 0SEC filing ↗
2026-07-22Trowbridge Stephen ATax withholding (F)Common Stock8,319USD 13.82USD 114,969SEC filing ↗
2026-07-22Piccinini LauraOption exercise / conversion (M)Common Stock8,047USD 0.00USD 0SEC filing ↗
2026-07-22Piccinini LauraTax withholding (F)Common Stock4,506USD 13.82USD 62,273SEC filing ↗
2026-07-22Nighan Warren JROption exercise / conversion (M)Common Stock5,694USD 0.00USD 0SEC filing ↗
2026-07-22Nighan Warren JRTax withholding (F)Common Stock1,671USD 13.82USD 23,093SEC filing ↗
2026-07-22Clemmer James COption exercise / conversion (M)Common Stock52,358USD 0.00USD 0SEC filing ↗
2026-07-22Clemmer James CTax withholding (F)Common Stock26,728USD 13.82USD 369,381SEC filing ↗
2026-07-22Campbell Chad ThomasOption exercise / conversion (M)Common Stock6,466USD 0.00USD 0SEC filing ↗
2026-07-22Campbell Chad ThomasTax withholding (F)Common Stock2,330USD 13.82USD 32,201SEC filing ↗
2026-07-20Trowbridge Stephen ATax withholding (F)Common Stock717USD 13.71USD 9,830SEC filing ↗
2026-07-20Piccinini LauraTax withholding (F)Common Stock616USD 13.71USD 8,445SEC filing ↗
2026-07-20Nighan Warren JRTax withholding (F)Common Stock251USD 13.71USD 3,441SEC filing ↗
2026-07-20Clemmer James CTax withholding (F)Common Stock4,223USD 13.71USD 57,897SEC filing ↗
2026-07-20Campbell Chad ThomasTax withholding (F)Common Stock359USD 13.71USD 4,922SEC filing ↗
2026-07-19Clemmer James CTax withholding (F)Common Stock12,251USD 13.51USD 165,511SEC filing ↗
2026-07-17Trowbridge Stephen ATax withholding (F)Common Stock3,510USD 13.51USD 47,420SEC filing ↗
2026-07-17Piccinini LauraTax withholding (F)Common Stock3,074USD 13.51USD 41,530SEC filing ↗
2026-07-17Nighan Warren JRTax withholding (F)Common Stock1,373USD 13.51USD 18,549SEC filing ↗
2026-07-17Clemmer James CTax withholding (F)Common Stock10,649USD 13.51USD 143,868SEC filing ↗
2026-07-17Campbell Chad ThomasTax withholding (F)Common Stock1,112USD 13.51USD 15,023SEC filing ↗
2026-07-16Weiss Lawrence TTax withholding (F)Common Stock2,267USD 14.14USD 32,055SEC filing ↗
2026-07-16Trowbridge Stephen ATax withholding (F)Common Stock7,840USD 14.14USD 110,858SEC filing ↗
2026-07-16Piccinini LauraTax withholding (F)Common Stock4,538USD 14.14USD 64,167SEC filing ↗
2026-07-16Nighan Warren JRTax withholding (F)Common Stock2,153USD 14.14USD 30,443SEC filing ↗
2026-07-16Clemmer James CTax withholding (F)Common Stock18,588USD 14.14USD 262,834SEC filing ↗
2026-07-16Campbell Chad ThomasTax withholding (F)Common Stock2,367USD 14.14USD 33,469SEC filing ↗
2026-07-15Weiss Lawrence TAward / grant (A)Common Stock21,288USD 0.00USD 0SEC filing ↗
2026-07-15Trowbridge Stephen AAward / grant (A)Common Stock53,257USD 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 · —
TickerANGO
CIK0001275187
SectorHealthcare
IndustryMedical Instruments & Supplies Yahoo Finance
SEC SIC3841 Surgical & Medical Instruments & Apparatus
ExchangeNasdaq

Data coverage

Local Form 4 history327 transaction lines from 2020-01-17 to 2026-07-30
14 P purchase lines · 12 S sale lines · 301 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.