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

Waste Connections, Inc.

WCN · NYSE · CIK 0001318220 · Industrials · Waste Management

INSIDER SIGNAL

46.0 / 100

1 buyers · 1 purchase transaction lines · $7.6M gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeStrong
RoleModerate
RecencyLow
ConvictionLow
Score anatomy

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

Cluster+7.0 / 35
Purchase size+21.0 / 25
Role+13.0 / 20
Recency+0.7 / 10
Conviction+4.3 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Role scores low · most senior buyer: President & CEO (CEO, chair and 10% owners score lowest)
  • ⚠ Purchase activity is becoming less recent
  • ⚠ Buying conviction is reduced by concurrent selling

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
NIELSEN III ROBERTSR VP Operations
▼▼▼▼▼
Shea Patrick JamesExec VP, General Counsel & Sec
▼○○
CRAFT JASONExecutive Vice President & COO
▼○
MITTELSTAEDT RONALD JPresident & CEO
●
HANSEN ERICSenior Vice President and CIO
▼
LITTLE JAMESExecutive VP Engineering
▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 6 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: MITTELSTAEDT RONALD J · $7.6M
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-12–2026-05-12

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

SIGNAL HISTORY

46.0 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 46.1
  2. 46.1
  3. 46.1
  4. 46.1
  5. 46.0

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

Recent Form 4 activity

1Purchases
16Sales
181Other Form 4 lines
58SEC filings · 365 days
BUYING1 qualifying P line(s) · 180 days
SELLING13 sale line(s) · context only
OTHER6 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
-4.1%
3M
-10.7%
6M
-5.4%
12M
-12.0%

Volatility & liquidity

Volatility
20.7%
Beta
—
Avg daily value
USD 193.7M

Valuation

Market cap
—
P/E
—

Fundamentals

Profit margin
11.4%
ROE
13.1%
Industry
Waste Management

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (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
3,922,424
Previous report
3,421,015
Avg daily volume
1,492,060
Days to cover
2.6

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
2026-05-12MITTELSTAEDT RONALD JPurchase (P)Common Shares50,000USD 152.24USD 7,612,000SEC filing ↗
2022-12-02Cloninger Robert MichaelPurchase (P)Common Shares3USD 142.95USD 365SEC filing ↗
2022-12-01HARLAN MICHAEL WPurchase (P)Common Shares11USD 143.60USD 1,522SEC filing ↗
2022-09-02HARLAN MICHAEL WPurchase (P)Common Shares10USD 140.55USD 1,370SEC filing ↗
2022-09-02Cloninger Robert MichaelPurchase (P)Common Shares2USD 140.50USD 327SEC filing ↗
2022-06-02Cloninger Robert MichaelPurchase (P)Common Shares3USD 127.42USD 327SEC filing ↗
2022-06-01HARLAN MICHAEL WPurchase (P)Common Shares11USD 127.63USD 1,368SEC filing ↗
2022-03-17Cloninger Robert MichaelPurchase (P)Common Shares5USD 135.94USD 654SEC filing ↗
2022-03-16HARLAN MICHAEL WPurchase (P)Common Shares10USD 135.47USD 1,367SEC filing ↗
2022-03-09RAZZOUK WILLIAM JPurchase (P)Common Shares84USD 131.25USD 11,000SEC filing ↗
2021-11-23HARLAN MICHAEL WPurchase (P)Common Shares10USD 137.22USD 1,364SEC filing ↗
2021-09-01HARLAN MICHAEL WPurchase (P)Common Shares9USD 129.86USD 1,214SEC filing ↗
2021-05-26HARLAN MICHAEL WPurchase (P)Common Shares10USD 120.49USD 1,213SEC filing ↗
2021-03-17HARLAN MICHAEL WPurchase (P)Common Shares12USD 102.25USD 1,211SEC filing ↗
2020-11-25HARLAN MICHAEL WPurchase (P)Common Shares12USD 103.57USD 1,209SEC filing ↗

Form 4 evidence

198 transaction lines in the latest 365-day window; 1,224 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-19NIELSEN III ROBERTSale (S)Common Shares700USD 170.00USD 119,000SEC filing ↗
2026-08-18RIVARD PHILIPSale (S)Common Shares2,500USD 166.57USD 416,425SEC filing ↗
2026-08-13Netherton SusanSale (S)Common Shares1,750USD 166.00USD 290,500SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-19NIELSEN III ROBERTSale (S)Common Shares700USD 170.00USD 119,000SEC filing ↗
2026-08-18RIVARD PHILIPSale (S)Common Shares2,500USD 166.57USD 416,425SEC filing ↗
2026-08-13Netherton SusanSale (S)Common Shares1,750USD 166.00USD 290,500SEC filing ↗
2026-07-29NIELSEN III ROBERTSale (S)Common Shares300USD 173.10USD 51,930SEC filing ↗
2026-07-28Cloninger Robert MichaelSale (S)Common Shares2,811USD 171.03USD 480,760SEC filing ↗
2026-06-30PIO DOMENICJ (J)Common Shares95USD 158.36USD 15,044SEC filing ↗
2026-06-30CRAFT JASONJ (J)Common Shares54USD 158.36USD 8,551SEC filing ↗
2026-06-30Black Matthew StephenJ (J)Common Shares16USD 158.36USD 2,534SEC filing ↗
2026-06-30BRADLEY AARONJ (J)Common Shares42USD 158.36USD 6,651SEC filing ↗
2026-06-09Shea Patrick JamesGift (G)Common Shares100USD 0.00USD 0SEC filing ↗
2026-06-08Shea Patrick JamesGift (G)Common Shares15USD 0.00USD 0SEC filing ↗
2026-06-05Shea Patrick JamesSale (S)Common Shares7,500USD 156.26USD 1,171,950SEC filing ↗
2026-06-05CRAFT JASONSale (S)Common Shares1,500USD 156.59USD 234,885SEC filing ↗
2026-05-14NIELSEN III ROBERTSale (S)Common Shares500USD 155.56USD 77,780SEC filing ↗
2026-05-13NIELSEN III ROBERTSale (S)Common Shares290USD 151.00USD 43,790SEC filing ↗
2026-05-12NIELSEN III ROBERTSale (S)Common Shares337USD 153.00USD 51,561SEC filing ↗
2026-05-12MITTELSTAEDT RONALD JPurchase (P)Common Shares50,000USD 152.24USD 7,612,000SEC filing ↗
2026-04-30HANSEN ERICSale (S)Common Shares6,000USD 164.82USD 988,920SEC filing ↗
2026-04-27LITTLE JAMESSale (S)Common Shares2,605USD 163.98USD 427,168SEC filing ↗
2026-04-01FLORNESS DANIEL LOption exercise / conversion (M)Common Shares332USD 0.00USD 0SEC filing ↗
2026-04-01FLORNESS DANIEL LTax withholding (F)Common Shares178USD 162.98USD 29,010SEC filing ↗
2026-03-04TAN DEREKSale (S)Common Shares1,173USD 171.03USD 200,618SEC filing ↗
2026-02-18Whitney Mary AnneOption exercise / conversion (M)Common Shares1,436USD 0.00USD 0SEC filing ↗
2026-02-18Whitney Mary AnneTax withholding (F)Common Shares566USD 162.76USD 92,122SEC filing ↗
2026-02-18Shea Patrick JamesOption exercise / conversion (M)Common Shares1,255USD 0.00USD 0SEC filing ↗
2026-02-18Shea Patrick JamesTax withholding (F)Common Shares494USD 162.76USD 80,403SEC filing ↗
2026-02-18RIVARD PHILIPOption exercise / conversion (M)Common Shares640USD 0.00USD 0SEC filing ↗
2026-02-18RIVARD PHILIPTax withholding (F)Common Shares252USD 162.76USD 41,016SEC filing ↗
2026-02-18Netherton SusanOption exercise / conversion (M)Common Shares635USD 0.00USD 0SEC filing ↗
2026-02-18Netherton SusanTax withholding (F)Common Shares250USD 162.76USD 40,690SEC 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 · —
TickerWCN
CIK0001318220
SectorIndustrials
IndustryWaste Management Yahoo Finance
SEC SIC4953 Refuse Systems
ExchangeNYSE

Data coverage

Local Form 4 history1,224 transaction lines from 2020-02-11 to 2026-08-19
19 P purchase lines · 90 S sale lines · 1,115 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.