MITTELSTAEDT RONALD J (Chief Executive Officer) exercised options at WASTE CONNECTIONS, INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 6 exercises

MITTELSTAEDT RONALD J

Filed: 2/18/2026ACC: 0001064299-26-000001

InsiderMITTELSTAEDT RONALD JCIK 1064299

→

IssuerWASTE CONNECTIONS, INC.CIK 1318220

DirectorOfficer· Chief Executive Officer

Since Aug 2018

+29.86K

Net shares

Net buyer

$1.27M

Total sold

Open market trades

0B · 0S

Total transactions

60.16K acquired · 30.30K disposed

Non-Derivative Transactions12

Common Shares

Direct

M · Option Exercise

+3.50K

Price / share

—

Trade value

—

% of position

1.5%

2/14/2026

235.96K→239.46K

Common Shares

Direct

F · Tax Withholding

−854.00

Price / share

$160.26

Trade value

$136.86K

% of position

0.4%

2/14/2026

239.46K→238.61K

Common Shares

Direct

M · Option Exercise

+3.11K

Price / share

—

Trade value

—

% of position

1.3%

2/16/2026

238.61K→241.72K

Common Shares

Direct

F · Tax Withholding

−815.00

Price / share

$160.26

Trade value

$130.61K

% of position

0.3%

2/16/2026

241.72K→240.91K

Common Shares

Direct

M · Option Exercise

+2.56K

Price / share

—

Trade value

—

% of position

1.1%

2/17/2026

240.91K→243.47K

Common Shares

Direct

F · Tax Withholding

−1.01K

Price / share

$161.28

Trade value

$162.57K

% of position

0.4%

2/17/2026

243.47K→242.46K

Common Shares

Direct

M · Option Exercise

+10.83K

Price / share

—

Trade value

—

% of position

4.5%

2/17/2026

242.46K→253.29K

Common Shares

Direct

F · Tax Withholding

−4.26K

Price / share

$161.28

Trade value

$687.70K

% of position

1.7%

2/17/2026

253.29K→249.03K

Common Shares

Direct

M · Option Exercise

+1.94K

Price / share

—

Trade value

—

% of position

0.8%

2/17/2026

249.03K→250.97K

Common Shares

Direct

F · Tax Withholding

−764.00

Price / share

$161.28

Trade value

$123.22K

% of position

0.3%

2/17/2026

250.97K→250.21K

Common Shares

Direct

M · Option Exercise

+459.00

Price / share

—

Trade value

—

% of position

0.2%

2/17/2026

250.21K→250.67K

Common Shares

Direct

F · Tax Withholding

−181.00

Price / share

$161.28

Trade value

$29.19K

% of position

0.1%

2/17/2026

250.67K→250.49K

Total

Net shares

+14.53K

Net value

-$1.27M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Shares Direct	2/14/2026	M · Option Exercise	+3.50K	—	—	1.5%	235.96K	239.46K
Common Shares Direct	2/14/2026	F · Tax Withholding	−854.00	$160.26	$136.86K	0.4%	239.46K	238.61K
Common Shares Direct	2/16/2026	M · Option Exercise	+3.11K	—	—	1.3%	238.61K	241.72K
Common Shares Direct	2/16/2026	F · Tax Withholding	−815.00	$160.26	$130.61K	0.3%	241.72K	240.91K
Common Shares Direct	2/17/2026	M · Option Exercise	+2.56K	—	—	1.1%	240.91K	243.47K
Common Shares Direct	2/17/2026	F · Tax Withholding	−1.01K	$161.28	$162.57K	0.4%	243.47K	242.46K
Common Shares Direct	2/17/2026	M · Option Exercise	+10.83K	—	—	4.5%	242.46K	253.29K
Common Shares Direct	2/17/2026	F · Tax Withholding	−4.26K	$161.28	$687.70K	1.7%	253.29K	249.03K
Common Shares Direct	2/17/2026	M · Option Exercise	+1.94K	—	—	0.8%	249.03K	250.97K
Common Shares Direct	2/17/2026	F · Tax Withholding	−764.00	$161.28	$123.22K	0.3%	250.97K	250.21K
Common Shares Direct	2/17/2026	M · Option Exercise	+459.00	—	—	0.2%	250.21K	250.67K
Common Shares Direct	2/17/2026	F · Tax Withholding	−181.00	$161.28	$29.19K	0.1%	250.67K	250.49K
Total			+14.53K		-$1.27M

Derivative Transactions8

Restricted Share Units

Direct

A · Award

Converts to

Common Shares

18.88K shares

+18.88K

Strike price

0.00

Held after

18.88K

Exercisable

—

2/13/2026

Restricted Share Units

Direct

A · Award

Converts to

Common Shares

18.88K shares

+18.88K

Strike price

0.00

Held after

18.88K

Exercisable

—

2/13/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Common Shares

3.50K shares

−3.50K

Strike price

0.00

Held after

10.52K

Exercisable

—

2/14/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Common Shares

3.11K shares

−3.11K

Strike price

0.00

Held after

6.22K

Exercisable

—

2/16/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Common Shares

459.00 shares

−459.00

Strike price

0.00

Held after

459.00

Exercisable

—

2/17/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Common Shares

2.56K shares

−2.56K

Strike price

0.00

Held after

0.00

Exercisable

—

2/17/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Common Shares

1.94K shares

−1.94K

Strike price

0.00

Held after

1.94K

Exercisable

—

2/17/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Common Shares

10.83K shares

−10.83K

Strike price

0.00

Held after

0.00

Exercisable

—

2/17/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Share Units Direct	Common Shares18.88K shares	2/13/2026	A · Award	+18.88K	—	18.88K
Restricted Share Units Direct	Common Shares18.88K shares	2/13/2026	A · Award	+18.88K	—	18.88K
Restricted Share Units Direct	Common Shares3.50K shares	2/14/2026	M · Option Exercise	−3.50K	—	10.52K
Restricted Share Units Direct	Common Shares3.11K shares	2/16/2026	M · Option Exercise	−3.11K	—	6.22K
Restricted Share Units Direct	Common Shares459.00 shares	2/17/2026	M · Option Exercise	−459.00	—	459.00
Restricted Share Units Direct	Common Shares2.56K shares	2/17/2026	M · Option Exercise	−2.56K	—	0.00
Restricted Share Units Direct	Common Shares1.94K shares	2/17/2026	M · Option Exercise	−1.94K	—	1.94K
Restricted Share Units Direct	Common Shares10.83K shares	2/17/2026	M · Option Exercise	−10.83K	—	0.00