TAN DEREK (SR VP Chief Accounting Officer) exercised options at WASTE CONNECTIONS, INC.

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

M · 4 exercises

TAN DEREK

Filed: 2/18/2026ACC: 0002053089-26-000001

InsiderTAN DEREKCIK 2053089

→

IssuerWASTE CONNECTIONS, INC.CIK 1318220

Officer· SR VP Chief Accounting Officer

Since Mar 2026

+3.36K

Net shares

Net buyer

$82.5K

Total sold

Open market trades

0B · 0S

Total transactions

5.79K acquired · 2.43K disposed

Non-Derivative Transactions8

Common Shares

Direct

M · Option Exercise

+232.00

Price / share

—

Trade value

—

% of position

19.9%

2/14/2026

1.17K→1.40K

Common Shares

Direct

F · Tax Withholding

−69.00

Price / share

$160.26

Trade value

$11.06K

% of position

4.9%

2/14/2026

1.40K→1.33K

Common Shares

Direct

M · Option Exercise

+276.00

Price / share

—

Trade value

—

% of position

20.7%

2/16/2026

1.33K→1.61K

Common Shares

Direct

F · Tax Withholding

−82.00

Price / share

$160.26

Trade value

$13.14K

% of position

5.1%

2/16/2026

1.61K→1.52K

Common Shares

Direct

M · Option Exercise

+1.14K

Price / share

—

Trade value

—

% of position

74.8%

2/17/2026

1.52K→2.67K

Common Shares

Direct

F · Tax Withholding

−294.00

Price / share

$161.38

Trade value

$47.44K

% of position

11.0%

2/17/2026

2.67K→2.37K

Common Shares

Direct

M · Option Exercise

+273.00

Price / share

—

Trade value

—

% of position

11.5%

2/17/2026

2.37K→2.64K

Common Shares

Direct

F · Tax Withholding

−67.00

Price / share

$161.38

Trade value

$10.81K

% of position

2.5%

2/17/2026

2.64K→2.58K

Total

Net shares

+1.41K

Net value

-$82.46K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Shares Direct	2/14/2026	M · Option Exercise	+232.00	—	—	19.9%	1.17K	1.40K
Common Shares Direct	2/14/2026	F · Tax Withholding	−69.00	$160.26	$11.06K	4.9%	1.40K	1.33K
Common Shares Direct	2/16/2026	M · Option Exercise	+276.00	—	—	20.7%	1.33K	1.61K
Common Shares Direct	2/16/2026	F · Tax Withholding	−82.00	$160.26	$13.14K	5.1%	1.61K	1.52K
Common Shares Direct	2/17/2026	M · Option Exercise	+1.14K	—	—	74.8%	1.52K	2.67K
Common Shares Direct	2/17/2026	F · Tax Withholding	−294.00	$161.38	$47.44K	11.0%	2.67K	2.37K
Common Shares Direct	2/17/2026	M · Option Exercise	+273.00	—	—	11.5%	2.37K	2.64K
Common Shares Direct	2/17/2026	F · Tax Withholding	−67.00	$161.38	$10.81K	2.5%	2.64K	2.58K
Total			+1.41K		-$82.46K

Derivative Transactions6

Restricted Share Units

Direct

A · Award

Converts to

Common Shares

1.94K shares

+1.94K

Strike price

0.00

Held after

1.94K

Exercisable

—

2/13/2026

Restricted Share Units

Direct

A · Award

Converts to

Common Shares

1.94K shares

+1.94K

Strike price

0.00

Held after

1.94K

Exercisable

—

2/13/2026

Restricted Shae Units

Direct

M · Option Exercise

Converts to

Common Shares

232.00 shares

−232.00

Strike price

0.00

Held after

694.00

Exercisable

—

2/14/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Common Shares

276.00 shares

−276.00

Strike price

0.00

Held after

276.00

Exercisable

—

2/16/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Common Shares

273.00 shares

−273.00

Strike price

0.00

Held after

0.00

Exercisable

—

2/17/2026

Restricted Share Units

Direct

M · Option Exercise

Converts to

Common Shares

1.14K shares

−1.14K

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 Shares1.94K shares	2/13/2026	A · Award	+1.94K	—	1.94K
Restricted Share Units Direct	Common Shares1.94K shares	2/13/2026	A · Award	+1.94K	—	1.94K
Restricted Shae Units Direct	Common Shares232.00 shares	2/14/2026	M · Option Exercise	−232.00	—	694.00
Restricted Share Units Direct	Common Shares276.00 shares	2/16/2026	M · Option Exercise	−276.00	—	276.00
Restricted Share Units Direct	Common Shares273.00 shares	2/17/2026	M · Option Exercise	−273.00	—	0.00
Restricted Share Units Direct	Common Shares1.14K shares	2/17/2026	M · Option Exercise	−1.14K	—	0.00