Ronald J. Mittelstaedt

CIK: 0001064299

Transaction Breakdown

Open Market Buys (P)1 (2.8%)

High conviction signal

Open Market Sales (S)1 (2.8%)

Position reduction

Option Exercises (M)13 (36.1%)

Derivative conversions

Awards (A)6 (16.7%)

Compensation grants

Other (G, F, J, C, D, …)15 (41.7%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

WCN

Waste Connections, Inc.

DirectorOfficer

SKYW

SKYWEST INC

Director

Discretionary Trading P&L

Holdings

Transaction History (36 total)

WCN
Waste Connections, Inc.
May 12, 2026
Purchase(P)
Direct
50K shares at avg. $152.24$7.6M
SKYW
SKYWEST INC
May 5, 2026
Award(A)
Direct
1.2K shares-
WCN
Waste Connections, Inc.
Feb 18, 2026
Exercise(M)
Direct
878 shares-
WCN
Waste Connections, Inc.
Feb 18, 2026
Tax Payment(F)
Direct
346 shares at avg. $162.76$56K
WCN
Waste Connections, Inc.
Feb 17, 2026
Tax Payment(F)
Direct
1K shares at avg. $161.28$163K
WCN
Waste Connections, Inc.
Feb 17, 2026
Exercise(M)
Direct
10.8K shares-
WCN
Waste Connections, Inc.
Feb 17, 2026
Exercise(M)
Direct
2.6K shares-
WCN
Waste Connections, Inc.
Feb 17, 2026
Tax Payment(F)
Direct
181 shares at avg. $161.28$29K
WCN
Waste Connections, Inc.
Feb 17, 2026
Exercise(M)
Direct
459 shares-
WCN
Waste Connections, Inc.
Feb 17, 2026
Tax Payment(F)
Direct
764 shares at avg. $161.28$123K
WCN
Waste Connections, Inc.
Feb 17, 2026
Exercise(M)
Direct
1.9K shares-
WCN
Waste Connections, Inc.
Feb 17, 2026
Tax Payment(F)
Direct
4.3K shares at avg. $161.28$688K
WCN
Waste Connections, Inc.
Feb 16, 2026
Exercise(M)
Direct
3.1K shares-
WCN
Waste Connections, Inc.
Feb 16, 2026
Tax Payment(F)
Direct
815 shares at avg. $160.26$131K
WCN
Waste Connections, Inc.
Feb 14, 2026
Tax Payment(F)
Direct
854 shares at avg. $160.26$137K
WCN
Waste Connections, Inc.
Feb 14, 2026
Exercise(M)
Direct
3.5K shares-
WCN
Waste Connections, Inc.
Feb 13, 2026
Award(A)
Restricted Share Units
Direct
18.9K shares-
WCN
Waste Connections, Inc.
Feb 13, 2026
Award(A)
Restricted Share Units
Direct
18.9K shares-
SKYW
SKYWEST INC
Dec 29, 2025
Gift(G)
Direct
5.5K shares-
SKYW
SKYWEST INC
May 6, 2025
Award(A)
Direct
1.3K shares-
WCN
Waste Connections, Inc.
Feb 19, 2025
Exercise(M)
Direct
1.1K shares-
WCN
Waste Connections, Inc.
Feb 19, 2025
Tax Payment(F)
Direct
420 shares at avg. $187.82$79K
WCN
Waste Connections, Inc.
Feb 18, 2025
Exercise(M)
Direct
878 shares-
WCN
Waste Connections, Inc.
Feb 18, 2025
Tax Payment(F)
Direct
1.5K shares at avg. $187.65$288K
WCN
Waste Connections, Inc.
Feb 18, 2025
Exercise(M)
Direct
4K shares-

		Type	Shares	Price		Ownership
May 12, 2026	WCN Waste Connections, Inc.	Purchase(P)	50,000	$152.24	$7,611,750	Direct
May 5, 2026	SKYW SKYWEST INC	Award(A)	1,219	-	$0	Direct
Feb 18, 2026	WCN Waste Connections, Inc.	Exercise(M)	878	-	$0	Direct
Feb 18, 2026	WCN Waste Connections, Inc.	Tax Payment(F)	346	$162.76	$56,315	Direct
Feb 17, 2026	WCN Waste Connections, Inc.	Tax Payment(F)	1,008	$161.28	$162,570	Direct
Feb 17, 2026	WCN Waste Connections, Inc.	Exercise(M)	10,834	-	$0	Direct
Feb 17, 2026	WCN Waste Connections, Inc.	Exercise(M)	2,561	-	$0	Direct
Feb 17, 2026	WCN Waste Connections, Inc.	Tax Payment(F)	181	$161.28	$29,192	Direct
Feb 17, 2026	WCN Waste Connections, Inc.	Exercise(M)	459	-	$0	Direct
Feb 17, 2026	WCN Waste Connections, Inc.	Tax Payment(F)	764	$161.28	$123,218	Direct
Feb 17, 2026	WCN Waste Connections, Inc.	Exercise(M)	1,941	-	$0	Direct
Feb 17, 2026	WCN Waste Connections, Inc.	Tax Payment(F)	4,264	$161.28	$687,698	Direct
Feb 16, 2026	WCN Waste Connections, Inc.	Exercise(M)	3,112	-	$0	Direct
Feb 16, 2026	WCN Waste Connections, Inc.	Tax Payment(F)	815	$160.26	$130,612	Direct
Feb 14, 2026	WCN Waste Connections, Inc.	Tax Payment(F)	854	$160.26	$136,862	Direct
Feb 14, 2026	WCN Waste Connections, Inc.	Exercise(M)	3,505	-	$0	Direct
Feb 13, 2026	WCN Waste Connections, Inc.	Award(A) Restricted Share Units	18,875	-	-	Direct
Feb 13, 2026	WCN Waste Connections, Inc.	Award(A) Restricted Share Units	18,876	-	-	Direct
Dec 29, 2025	SKYW SKYWEST INC	Gift(G)	5,500	-	-	Direct
May 6, 2025	SKYW SKYWEST INC	Award(A)	1,255	-	-	Direct
Feb 19, 2025	WCN Waste Connections, Inc.	Exercise(M)	1,067	-	-	Direct
Feb 19, 2025	WCN Waste Connections, Inc.	Tax Payment(F)	420	$187.82	$78,884	Direct
Feb 18, 2025	WCN Waste Connections, Inc.	Exercise(M)	878	-	-	Direct
Feb 18, 2025	WCN Waste Connections, Inc.	Tax Payment(F)	1,535	$187.65	$288,043	Direct
Feb 18, 2025	WCN Waste Connections, Inc.	Exercise(M)	3,990	-	-	Direct

1-25 of 36 transactions

About MITTELSTAEDT RONALD J

MITTELSTAEDT RONALD J (SEC CIK 0001064299) files insider reports with the SEC as President & CEO of Waste Connections, Inc. (WCN) and Director of SKYWEST INC (SKYW).

Signal8 holds 10 ownership filings by MITTELSTAEDT RONALD J, all Form 4s, filed between Nov 8, 2024 and May 13, 2026. Those filings report 36 transactions, from Nov 6, 2024 to May 12, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on MITTELSTAEDT RONALD J's filings is in THE WOODLANDS, TX.

Recent filings by MITTELSTAEDT RONALD J

May 12, 2026: Open-market purchase of WCN shares (Form 4, code P).
May 5, 2026: Grant or award of SKYW shares (Form 4, code A).
Feb 18, 2026: Option exercise of WCN shares (Form 4, code M).
Feb 18, 2026: Tax withholding of WCN shares (Form 4, code F).
Feb 17, 2026: Tax withholding of WCN shares (Form 4, code F).

Other insiders filing for Waste Connections, Inc. (WCN)

Black Matthew Stephen, Sr VP Chief Tax Officer
LITTLE JAMES, Executive VP Engineering
TAN DEREK, SR VP Chief Accounting Officer
NIELSEN III ROBERT, SR VP Operations
RIVARD PHILIP, SR VP Business Development
Netherton Susan, SR VP People, Training & Dev

How to read Form 4 transaction codes