HERR AMY E. exercised options at BIO-TECHNE CORP

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

M · 1 exercise

HERR AMY E.

Filed: 8/19/2025ACC: 0001062993-25-014701

InsiderHERR AMY E.CIK 2055523

→

IssuerBIO-TECHNE CORPCIK 842023

Director

Since Feb 2026

+3.57K

Net shares

Net buyer

$5.4K

Total sold

Open market trades

0B · 0S

Total transactions

3.95K acquired · 380.00 disposed

Non-Derivative Transactions2

Common Stock

Indirect

M · Option Exercise

+279.00

Price / share

—

Trade value

—

% of position

14.1%

8/15/2025

1.98K→2.25K

Common Stock

Indirect

F · Tax Withholding

−101.00

Price / share

$53.60

Trade value

$5.41K

% of position

4.5%

8/15/2025

2.25K→2.15K

Total

Net shares

+178.00

Net value

-$5.41K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Indirect	8/15/2025	M · Option Exercise	+279.00	—	—	14.1%	1.98K	2.25K
Common Stock Indirect	8/15/2025	F · Tax Withholding	−101.00	$53.60	$5.41K	4.5%	2.25K	2.15K
Total			+178.00		-$5.41K

Derivative Transactions4

Restricted Stock Units

Indirect

M · Option Exercise

Converts to

Common Stock

119.00 shares

−119.00

Strike price

Held after

118.00

Exercisable

—

8/15/2025

Restricted Stock Units

Indirect

M · Option Exercise

Converts to

Common Stock

160.00 shares

−160.00

Strike price

Held after

320.00

Exercisable

—

8/15/2025

Restricted Stock Units

Indirect

A · Award

Converts to

Common Stock

932.00 shares

+932.00

Strike price

Held after

932.00

Exercisable

—

8/15/2025

Stock Option (Right to Buy)

Indirect

A · Award

Converts to

Common Stock

2.73K shares

+2.73K

Strike price

53.60

Held after

2.73K

Exercisable

—

8/15/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Stock Units Indirect	Common Stock119.00 shares	8/15/2025	M · Option Exercise	−119.00		—	118.00
Restricted Stock Units Indirect	Common Stock160.00 shares	8/15/2025	M · Option Exercise	−160.00		—	320.00
Restricted Stock Units Indirect	Common Stock932.00 shares	8/15/2025	A · Award	+932.00		—	932.00
Stock Option (Right to Buy) Indirect	Common Stock2.73K shares	8/15/2025	A · Award	+2.73K	53.60	—	2.73K

Non-Derivative Holdings (Post-Transaction)1

Common Stock

Direct

Shares owned1.04K

Total

1.04K direct1.04K

Security Title	Shares Owned	Ownership Type
Common Stock	1.04K	Direct
Total	1.04K	1.04K direct

Derivative Holdings (Post-Transaction)9

Stock Option (Right to Buy)

Indirect

Underlying security

Common Stock

Underlying shares

1.08K

Shares owned

1.08K

Exercise price

84.61

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Indirect

Underlying security

Common Stock

Underlying shares

2.08K

Shares owned

2.08K

Exercise price

120.46

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Indirect

Underlying security

Common Stock

Underlying shares

4.47K

Shares owned

4.47K

Exercise price

66.97

Expiration

—

Exercise window

—

Restricted Stock Units

Indirect

Underlying security

Common Stock

Underlying shares

115.00

Shares owned

115.00

Exercise price

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Indirect

Underlying security

Common Stock

Underlying shares

344.00

Shares owned

344.00

Exercise price

72.05

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

2.42K

Shares owned

2.42K

Exercise price

72.05

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Indirect

Underlying security

Common Stock

Underlying shares

2.10K

Shares owned

2.10K

Exercise price

94.52

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Indirect

Underlying security

Common Stock

Underlying shares

6.64K

Shares owned

6.64K

Exercise price

47.60

Expiration

—

Exercise window

—

Stock Option (Right to Buy)

Indirect

Underlying security

Common Stock

Underlying shares

1.47K

Shares owned

1.47K

Exercise price

74.91

Expiration

—

Exercise window

—

Total

Underlying

20.71K

Owned

20.71K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Stock Option (Right to Buy) Indirect	Common Stock	84.61	—	—	1.08K	1.08K
Stock Option (Right to Buy) Indirect	Common Stock	120.46	—	—	2.08K	2.08K
Stock Option (Right to Buy) Indirect	Common Stock	66.97	—	—	4.47K	4.47K
Restricted Stock Units Indirect	Common Stock		—	—	115.00	115.00
Stock Option (Right to Buy) Indirect	Common Stock	72.05	—	—	344.00	344.00
Stock Option (Right to Buy) Direct	Common Stock	72.05	—	—	2.42K	2.42K
Stock Option (Right to Buy) Indirect	Common Stock	94.52	—	—	2.10K	2.10K
Stock Option (Right to Buy) Indirect	Common Stock	47.60	—	—	6.64K	6.64K
Stock Option (Right to Buy) Indirect	Common Stock	74.91	—	—	1.47K	1.47K
Total					20.71K	20.71K