Waste Connections (WCN) CEO adds 50,000 shares in open-market buy

Filing Impact

(Very High)

Filing Sentiment

(Very Positive)

Form Type

Rhea-AI Filing Summary

Waste Connections, Inc. President & CEO Ronald J. Mittelstaedt reported an open-market purchase of 50,000 Common Shares of the company. The shares were bought at an average price of $152.235 per share, and his direct holdings increased to 301,017 Common Shares following this transaction.

Insights

Waste Connections' CEO made a sizable open-market share purchase.

Ronald J. Mittelstaedt, President & CEO of Waste Connections, Inc., executed an open-market purchase of 50,000 Common Shares at $152.235 per share. Form 4 data classify this as a direct ownership transaction, indicating he personally holds the shares.

After the purchase, his direct position rose to 301,017 Common Shares, as shown in the filing. The transactionSummary characterizes the activity as a net-buy of 50,000 shares with no related sales or derivative exercises reported in this filing, suggesting a straightforward increase in equity exposure.

Insider Trade Summary

Net Buyer: 50,000 shares ($7,611,750)

Net Buy 1 txn

Insider MITTELSTAEDT RONALD J

Role President & CEO

Bought 50,000 shs ($7.61M)

Type	Security	Shares	Price	Value
Purchase	Common Shares	50,000	$152.235	$7.61M

Holdings After Transaction: Common Shares — 301,017 shares (Direct, null)

Footnotes (1)

Key Figures

Shares purchased: 50,000 shares Purchase price: $152.235 per share Shares held after transaction: 301,017 shares +2 more

5 metrics

Shares purchased 50,000 shares Open-market purchase of Common Shares

Purchase price $152.235 per share Average price paid for Common Shares

Shares held after transaction 301,017 shares CEO direct holdings following purchase

Net buy shares 50,000 shares NetBuySellShares in transactionSummary

Buy transactions count 1 transaction BuyCount in transactionSummary

Key Terms

open-market purchase, Common Shares, Form 4, direct ownership

4 terms

open-market purchase financial

"transaction_action: "open-market purchase" for 50,000 Common Shares"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Shares financial

"security_title: "Common Shares" were acquired in the transaction"

Common shares are the basic units of ownership in a company that give holders a claim on profits and a right to vote on key matters, like electing the board. Think of them as membership cards in a club: they let you share in successes and losses, but in a bankruptcy or liquidation they are paid after creditors and preferred shareholders, so their value can swing more and matters for assessing risk and potential return.

Form 4 regulatory

"INSIDER FILING DATA (Form 4) for Waste Connections, Inc."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

direct ownership financial

"ownership_type: "direct" and direct_or_indirect: "D" in the filing"

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Form 4 Insider Transactions: What Each Field Means →

05/13/2026 - 10:03 AM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MITTELSTAEDT RONALD J

(Last)

(First)

(Middle)

3 WATERWAY SQUARE PLACE

SUITE 110

(Street)

THE WOODLANDS

TEXAS

77380

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Waste Connections, Inc. [ WCN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	President & CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/12/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Shares	05/12/2026		P		50,000	A	$152.235	301,017	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

Remarks:

	Ronald Mittelstaedt	05/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Waste Connections (WCN) report on this Form 4?

Waste Connections reported that President & CEO Ronald J. Mittelstaedt made an open-market purchase of 50,000 Common Shares. The transaction was classified as a direct ownership buy, increasing his personal share position in the company.

At what price did the Waste Connections CEO buy shares on this Form 4?

The President & CEO of Waste Connections bought 50,000 Common Shares at an average price of $152.235 per share. This price reflects the per-share consideration paid in the reported open-market purchase transaction on the Form 4.

How many Waste Connections shares does the CEO hold after this Form 4 trade?

Following the reported transaction, the CEO’s direct holdings total 301,017 Common Shares. This figure, disclosed in the Form 4, reflects his position immediately after purchasing 50,000 shares in the open market at $152.235 per share.

Was the Waste Connections Form 4 transaction a buy or a sell?

The Form 4 shows a buy transaction. It identifies a purchase code "P" and describes it as an open-market purchase, with 50,000 Common Shares acquired by President & CEO Ronald J. Mittelstaedt and no shares reported as sold in this filing.

Does the Waste Connections Form 4 include any derivative exercises or tax withholdings?

No derivative exercises or tax withholdings are listed in this Form 4. The transactionSummary reports one buy transaction for 50,000 shares, with exerciseCount, taxWithholdingCount, and derivativeTransactionCount all shown as zero in the filing data.