HERR AMY E.

Filed: 8/19/2026ACC: 0000914190-26-000131

InsiderHERR AMY E.CIK 2055523

→

IssuerBIO-TECHNE CORPCIK 842023

Director

Since Feb 2026

+1.38K

Net shares

Net buyer

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

1.38K acquired

Non-Derivative Transactions0

No non-derivative transactions reported

Derivative Transactions1

Restricted Stock Units

Indirect

A · Award

Converts to

Common Stock

1.38K shares

+1.38K

Strike price

Held after

1.38K

Exercisable

—

8/17/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Stock Units Indirect	Common Stock1.38K shares	8/17/2026	A · Award	+1.38K		—	1.38K

Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect

Shares owned576.00

Common Stock

Direct

Shares owned2.68K

Total

2.68K direct·576.00 indirect3.26K

Security Title	Shares Owned	Ownership Type
Common Stock	576.00	Indirect
Common Stock	2.68K	Direct
Total	3.26K	2.68K direct·576.00 indirect

Derivative Holdings (Post-Transaction)12

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

2.10K

Shares owned

2.10K

Exercise price

94.52

Expiration

—

Exercise window

—

Restricted Stock Units

Indirect

Underlying security

Common Stock

Underlying shares

621.00

Shares owned

621.00

Exercise price

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

—

Restricted Stock Units

Indirect

Underlying security

Common Stock

Underlying shares

77.00

Shares owned

77.00

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Indirect

Underlying security

Common Stock

Underlying shares

160.00

Shares owned

160.00

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)

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

2.73K

Shares owned

2.73K

Exercise price

53.60

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

—

Stock Option (Right to Buy)

Direct

Underlying security

Common Stock

Underlying shares

3.78K

Shares owned

3.78K

Exercise price

60.96

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

—

Total

Underlying

21.33K

Owned

21.33K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Stock Option (Right to Buy) Indirect	Common Stock	120.46	—	—	2.08K	2.08K
Stock Option (Right to Buy) Indirect	Common Stock	94.52	—	—	2.10K	2.10K
Restricted Stock Units Indirect	Common Stock		—	—	621.00	621.00
Stock Option (Right to Buy) Direct	Common Stock	72.05	—	—	2.42K	2.42K
Restricted Stock Units Indirect	Common Stock		—	—	77.00	77.00
Restricted Stock Units Indirect	Common Stock		—	—	160.00	160.00
Stock Option (Right to Buy) Indirect	Common Stock	72.05	—	—	344.00	344.00
Stock Option (Right to Buy) Indirect	Common Stock	84.61	—	—	1.08K	1.08K
Stock Option (Right to Buy) Indirect	Common Stock	53.60	—	—	2.73K	2.73K
Stock Option (Right to Buy) Indirect	Common Stock	74.91	—	—	1.47K	1.47K
Stock Option (Right to Buy) Direct	Common Stock	60.96	—	—	3.78K	3.78K
Stock Option (Right to Buy) Indirect	Common Stock	66.97	—	—	4.47K	4.47K
Total					21.33K	21.33K