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

CASELLA WASTE SYSTEMS INC

CWST · Nasdaq · CIK 0000911177 · Industrials · Waste Management

INSIDER SIGNAL

No active buy signal

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

20 Form 4 transaction lines observed in the same window
9 sales · 11 option, withholding, award, gift or other lines

Last qualifying purchaseNo qualifying purchase is present in the local Form 4 history.

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
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
BURKE MICHAEL KDirector
▼○▼▼
CASELLA DOUGLAS RVICE CHAIRMAN, BD OF DIRECTORS
○▼▼
Green Emily NagleDirector
○○
Sova GaryDirector
○
Kirk Rose M.Director
○
HULLIGAN WILLIAM PDirector
○
● 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.—

Recent Form 4 activity

0Purchases
28Sales
27Other Form 4 lines
33SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING9 sale line(s) · context only
OTHER11 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
5,063,987
Previous report
5,071,072
Avg daily volume
584,777
Days to cover
8.7

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

No qualifying code P equity purchase is present in the local Form 4 history.

Form 4 evidence

55 transaction lines in the latest 365-day window; 477 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-03BURKE MICHAEL KSale (S)Class A Common Stock1,100USD 95.26USD 104,786SEC filing ↗
2026-08-26BURKE MICHAEL KSale (S)Class A Common Stock1,100USD 92.99USD 102,289SEC filing ↗
2026-08-14CASELLA DOUGLAS RSale (S)Class A Common Stock1,343USD 91.12USD 122,374SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-03BURKE MICHAEL KSale (S)Class A Common Stock1,100USD 95.26USD 104,786SEC filing ↗
2026-08-26BURKE MICHAEL KSale (S)Class A Common Stock1,100USD 92.99USD 102,289SEC filing ↗
2026-08-14CASELLA DOUGLAS RSale (S)Class A Common Stock1,343USD 91.12USD 122,374SEC filing ↗
2026-08-13CASELLA DOUGLAS RSale (S)Class A Common Stock15,157USD 91.05USD 1,380,017SEC filing ↗
2026-06-08Green Emily NagleGift (G)Class A Common Stock600USD 0.00USD 0SEC filing ↗
2026-06-04Sova GaryAward / grant (A)Class A Common Stock1,793USD 83.65USD 149,984SEC filing ↗
2026-06-04Kirk Rose M.Award / grant (A)Class A Common Stock1,793USD 83.65USD 149,984SEC filing ↗
2026-06-04HULLIGAN WILLIAM PAward / grant (A)Class A Common Stock1,793USD 83.65USD 149,984SEC filing ↗
2026-06-04Green Emily NagleAward / grant (A)Class A Common Stock1,793USD 83.65USD 149,984SEC filing ↗
2026-06-04DOODY JOSEPHAward / grant (A)Class A Common Stock1,793USD 83.65USD 149,984SEC filing ↗
2026-06-04CASELLA DOUGLAS RAward / grant (A)Class A Common Stock1,793USD 83.65USD 149,984SEC filing ↗
2026-06-04Battles Michael LouisAward / grant (A)Class A Common Stock1,793USD 83.65USD 149,984SEC filing ↗
2026-06-04BURKE MICHAEL KAward / grant (A)Class A Common Stock1,793USD 83.65USD 149,984SEC filing ↗
2026-06-01CASELLA JOHN WGift (G)Class B Common Stock67,000USD 0.00USD 0SEC filing ↗
2026-05-26BURKE MICHAEL KSale (S)Class A Common Stock2,305USD 87.56USD 201,826SEC filing ↗
2026-05-19Coletta EdmondSale (S)Class A Common Stock12,500USD 89.56USD 1,119,523SEC filing ↗
2026-03-18CASELLA DOUGLAS RGift (G)Class B Common Stock40,000USD 0.00USD 0SEC filing ↗
2026-03-17CASELLA DOUGLAS RGift (G)Class B Common Stock33,000USD 0.00USD 0SEC filing ↗
2026-03-16Rains Christopher AlanAward / grant (A)Class A Common Stock989USD 0.00USD 0SEC filing ↗
2026-03-16Steves SeanSale (S)Class A Common Stock197USD 87.80USD 17,297SEC filing ↗
2026-03-16Sayward Shelley E.Sale (S)Class A Common Stock362USD 87.73USD 31,758SEC filing ↗
2026-03-16Helgeson Bradford JohnSale (S)Class A Common Stock405USD 87.73USD 35,531SEC filing ↗
2026-03-16Drohan KevinSale (S)Class A Common Stock85USD 87.73USD 7,457SEC filing ↗
2026-03-16Coletta EdmondSale (S)Class A Common Stock988USD 87.81USD 86,756SEC filing ↗
2026-03-16CASELLA JOHN WSale (S)Class A Common Stock1,744USD 87.77USD 153,071SEC filing ↗
2026-03-12Steves SeanSale (S)Class A Common Stock97USD 89.71USD 8,702SEC filing ↗
2026-03-12Sayward Shelley E.Sale (S)Class A Common Stock129USD 89.71USD 11,573SEC filing ↗
2026-03-12Sayward Shelley E.Award / grant (A)Class A Common Stock1,654USD 0.00USD 0SEC filing ↗
2026-03-12Helgeson Bradford JohnAward / grant (A)Class A Common Stock2,756USD 0.00USD 0SEC filing ↗
2026-03-12Drohan KevinSale (S)Class A Common Stock55USD 89.52USD 4,924SEC 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 · —
TickerCWST
CIK0000911177
SectorIndustrials
IndustryWaste Management Yahoo Finance
SEC SIC4953 Refuse Systems
ExchangeNasdaq

Data coverage

Local Form 4 history477 transaction lines from 2020-02-25 to 2026-09-03
0 P purchase lines · 302 S sale lines · 175 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.