Bio-Techne Corporation (TECH) has 20 known insider and institutional holders on record. The largest holder is Kummeth Charles R. with 59,095 shares. Other notable holders include Kelderman Kim and Furlow Brenda S..
Over the last 12 months, insiders have made 30 transactions in TECH stock — 9 buys (valued at $1.61M) and 1 sells (valued at $116.79K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
TECH Insider Ownership
Top Holder
Kummeth Charles R.
59,095 shares
Buys (12 mo)
9
$1.61M value
Sells (12 mo)
1
$116.79K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Kummeth Charles R. |
Chief Executive Officer |
59,095 |
2023-08-17 |
|
| 2 |
Kelderman Kim |
Chief Executive Officer |
48,665 |
2025-11-05 |
|
| 3 |
Furlow Brenda S. |
SVP - General Counsel |
26,892 |
2022-12-09 |
|
| 4 |
Hippel James |
CFO |
8,021 |
2025-08-19 |
|
| 5 |
Geist William |
President, Protein Sciences |
5,246 |
2025-08-19 |
|
| 6 |
Wiens Harold J |
Director |
4,843 |
2020-06-02 |
|
| 7 |
Mcmanus Matthew |
President - Diag & Spatial Bio |
4,620 |
2026-02-03 |
|
| 8 |
Steer Randolph C |
Director |
3,937 |
2023-10-30 |
|
| 9 |
Seth Alpna |
Director |
3,777 |
2025-11-03 |
|
| 10 |
Keegan Joseph D |
Director |
3,777 |
2025-11-03 |
|
| 11 |
Higgins John L |
Director |
3,777 |
2025-11-03 |
|
| 12 |
Vessey Rupert |
Director |
3,777 |
2025-11-03 |
|
| 13 |
Bushman Julie L |
Director |
3,777 |
2025-11-03 |
|
| 14 |
Baumgartner Robert V |
Director |
3,777 |
2025-11-03 |
|
| 15 |
Klimovsky Judith V. |
Director |
3,777 |
2025-11-03 |
|
| 16 |
Nusse Roeland |
Director |
3,511 |
2024-10-28 |
|
| 17 |
Dinarello Charles A |
Director |
3,125 |
2017-10-30 |
|
| 18 |
Klimovsky Judith V |
Director |
2,142 |
2024-10-28 |
|
| 19 |
Gavin Robert M. |
Sen. VP Protein Platforms |
1,949 |
2017-10-30 |
|
| 20 |
Gould Kevin S |
SVP Clinical Controls |
1,949 |
2017-10-30 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-02 |
Crouse Steven C. |
President - Diag & Spatial Bi |
RSU Award |
735 |
- |
- |
| 2026-03-01 |
Crouse Steven C. |
President - Diag & Spatial Bi |
Unknown |
19,151 |
$53.60 |
$1.03M |
| 2026-02-17 |
Herr Amy E. |
Director |
Informative Sell |
1,976 |
$59.11 |
$116.79K |
| 2026-02-03 |
Herr Amy E. |
Director |
Option Exercise (Sell) |
38 |
- |
- |
| 2026-02-01 |
Mcmanus Matthew |
President - Diag & Spatial Bio |
Option Exercise (Sell) |
4,621 |
- |
- |
| 2025-11-03 |
Geist William |
President, Protein Sciences |
Option Exercise (Sell) |
9,911 |
- |
- |
| 2025-11-03 |
Kelderman Kim |
Chief Executive Officer |
Tax Withholding of RSU |
2,303 |
$62.57 |
$144.1K |
| 2025-11-03 |
Hippel James |
CFO |
Option Exercise (Sell) |
13,159 |
- |
- |
| 2025-10-30 |
Herr Amy E. |
Director |
RSU Award |
1,640 |
- |
- |
| 2025-10-30 |
Klimovsky Judith V. |
Director |
RSU Award |
3,777 |
$60.96 |
$230.25K |
| 2025-10-30 |
Seth Alpna |
Director |
RSU Award |
3,777 |
$60.96 |
$230.25K |
| 2025-10-30 |
Vessey Rupert |
Director |
RSU Award |
3,777 |
$60.96 |
$230.25K |
| 2025-10-30 |
Bushman Julie L |
Director |
RSU Award |
3,777 |
$60.96 |
$230.25K |
| 2025-10-30 |
Keegan Joseph D |
Director |
RSU Award |
3,777 |
$60.96 |
$230.25K |
| 2025-10-30 |
Baumgartner Robert V |
Director |
RSU Award |
3,777 |
$60.96 |
$230.25K |
| 2025-10-30 |
Higgins John L |
Director |
RSU Award |
3,777 |
$60.96 |
$230.25K |
| 2025-08-25 |
Nusse Roeland |
Director |
Option Exercise (Sell) |
17,040 |
$21.84 |
$372.15K |
| 2025-08-25 |
Baumgartner Robert V |
Director |
Option Exercise (Sell) |
17,040 |
$21.84 |
$372.15K |
| 2025-08-15 |
Herr Amy E. |
Director |
Option Exercise (Sell) |
119 |
- |
- |
| 2025-08-15 |
Bohnen Shane |
SVP - General Counsel |
Option Exercise (Sell) |
50 |
- |
- |
| 2025-08-15 |
Mcmanus Matthew |
President - Diag & Spatial Bio |
Tax Withholding of RSU |
880 |
$53.60 |
$47.17K |
| 2025-08-15 |
Geist William |
President, Protein Sciences |
Option Exercise (Sell) |
2,623 |
- |
- |
| 2025-08-15 |
Kelderman Kim |
Chief Executive Officer |
Option Exercise (Sell) |
8,543 |
- |
- |
| 2025-08-15 |
Hippel James |
CFO |
Option Exercise (Sell) |
4,010 |
- |
- |
| 2025-08-07 |
Higgins John L |
Director |
Option Exercise (Sell) |
5,040 |
$21.84 |
$110.07K |
