Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000842023.
Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.4%
|
$604,103,180
11,559,571 shares
|
$0 | 31 Mar 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
7%
from 13D/G
|
$640,943,435
12,264,513 shares
|
— | 31 Mar 2026 |
| FMR LLC |
13D/G
13F
Company
|
5%
|
$433,946,643
7,859,928 shares
|
$0 | 31 Mar 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13D/G
13F
T. Rowe Price Associates, Inc. · Company
|
2.2%
|
$186,406,005
3,350,818 shares
|
-$305,816,579 | 30 Sep 2025 |
| Roeland Nusse Power |
3/4/5
Director
|
0.03%
|
$2,511,380
44,559 shares
|
-$960,388 | 25 Aug 2025 |
| MORGAN STANLEY |
13F
Company
|
5.4%
|
$445,928,201
8,532,873 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
4.1%
|
$338,662,412
6,480,337 shares
|
— | 31 Mar 2026 |
| STATE STREET CORP |
13F
Company
|
3.7%
|
$306,682,375
5,868,396 shares
|
— | 31 Mar 2026 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Net insider flow leans to selling over the last 12 months. Net value: -$2,355,384.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 6,636 | $0 | $320,386 | -$320,386 |
| 3-6 | 0 | 1,976 | $0 | $116,791 | -$116,791 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 34,080 | $0 | $1,918,206 | -$1,918,206 |
Reporting owners
Showing 1-19 of 19 reporting-owner rows connected to BIO-TECHNE Corp. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Charles R. Kummeth | Chief Executive Officer, Director | $103,771,891 | Mixed | 15 Aug 2023 | ||
| Kim Kelderman Power | Chief Executive Officer, Director | $17,652,357 | Mixed | 05 May 2026 | ||
| James Hippel Power | Cfo | $11,991,954 | Mixed | 05 May 2026 | ||
| William Geist Power | President, Protein Sciences | $5,095,584 | Mixed | 03 Nov 2025 | ||
| John L. Higgins | Director | $3,930,425 | Mixed | 30 Oct 2025 | ||
| Matthew McManus Power | President - Diag & Spatial Bio | $3,811,445 | Mixed | 01 Feb 2026 | ||
| Brenda S. Furlow | Svp General Counsel | $3,481,191 | Mixed | 07 Dec 2022 | ||
| Robert Baumgartner V | Director | $2,797,075 | -$957,818 | -26% | Mixed | 30 Oct 2025 |
| Roeland Nusse Power | Director | $2,511,380 | -$960,388 | -28% | Filing P/S | 25 Aug 2025 |
| Shane Bohnen Power | SVP - General Counsel | $2,275,847 | Mixed | 05 May 2026 | ||
| Randolph C. Steer | Director | $1,873,641 | Mixed | 26 Oct 2023 | ||
| Joseph D. Keegan | Director | $1,067,427 | Mixed | 30 Oct 2025 | ||
| Alpna Seth | Director | $1,067,427 | Mixed | 30 Oct 2025 | ||
| Rupert Vessey | Director | $821,320 | Mixed | 30 Oct 2025 | ||
| Julie L. Bushman | Director | $698,267 | Mixed | 30 Oct 2025 | ||
| Steven C. Crouse | President - Diag & Spatial Bi | $614,043 | Mixed | 02 Jun 2026 | ||
| Judith Klimovsky V | Director | $420,506 | Mixed | 30 Oct 2025 | ||
| Amy E. Herr | Director | $409,695 | -$437,178 | -52% | Mixed | 08 May 2026 |
| Norman David Eansor | President-Protein Sciences | $288,872 | Mixed | 12 Nov 2021 |
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Steven C. Crouse | TECH | Common Stock | Tax liability | -3.1% | -216 | 6,761 | 02 Jun 2026 | Direct | ||
| Steven C. Crouse | TECH | Common Stock | Options Exercise | 9.41% | 600 | 6,977 | 02 Jun 2026 | Direct | ||
| Steven C. Crouse | TECH | Restricted Stock Units | Options Exercise | -33.3% | -600 | 1,200 | 02 Jun 2026 | Direct | ||
| Amy E. Herr | TECH | Common Stock | Sale | -97.1% | $320,386 | $48.28 | -6,636 | 200 | 08 May 2026 | By significant other |
| Amy E. Herr | TECH | Common Stock | Options Exercise | 3318% | 6,636 | 6,836 | 08 May 2026 | By significant other | ||
| Amy E. Herr | TECH | Stock Option (Right to Buy) | Options Exercise | -100% | -6,636 | 0 | 08 May 2026 | By significant other | ||
| James Hippel Power | TECH | Common Stock | Tax liability | -27% | -56,955 | 153,670 | 05 May 2026 | Direct | ||
| James Hippel Power | TECH | Common Stock | Options Exercise | 41.7% | 62,000 | 210,625 | 05 May 2026 | Direct | ||
| James Hippel Power | TECH | Stock Options (Right to Buy) | Options Exercise | -50% | -62,000 | 62,068 | 05 May 2026 | Direct | ||
| Shane Bohnen Power | TECH | Common Stock | Tax liability | -49.3% | -7,055 | 7,249 | 05 May 2026 | Direct | ||
| Shane Bohnen Power | TECH | Common Stock | Options Exercise | 142.3% | 8,400 | 14,304 | 05 May 2026 | Direct | ||
| Shane Bohnen Power | TECH | Stock Option (Right to Buy) | Options Exercise | -94.9% | -8,400 | 448 | 05 May 2026 | Direct | ||
| Kim Kelderman Power | TECH | Common Stock | Tax liability | -26.7% | -23,951 | 65,799 | 05 May 2026 | Direct | ||
| Kim Kelderman Power | TECH | Common Stock | Options Exercise | 42.3% | 26,692 | 89,750 | 05 May 2026 | Direct | ||
| Kim Kelderman Power | TECH | Stock Option (Right to Buy) | Options Exercise | -43.3% | -26,692 | 35,000 | 05 May 2026 | Direct | ||
| Steven C. Crouse | TECH | Common Stock | Tax liability | -4.68% | -311 | 6,337 | 01 May 2026 | Direct | ||
| Steven C. Crouse | TECH | Common Stock | Options Exercise | 13.5% | 794 | 6,688 | 01 May 2026 | Direct | ||
| Steven C. Crouse | TECH | Restricted Stock Units | Options Exercise | -50% | -794 | 794 | 01 May 2026 | Direct | ||
| Kim Kelderman Power | TECH | Common Stock | Tax liability | -2.12% | -1,363 | 63,058 | 22 Apr 2026 | Direct | ||
| Kim Kelderman Power | TECH | Common Stock | Options Exercise | 21.4% | 11,344 | 64,421 | 22 Apr 2026 | Direct | ||
| Kim Kelderman Power | TECH | Stock Option (Right to Buy) | Options Exercise | -15.5% | -11,344 | 61,692 | 22 Apr 2026 | Direct | ||
| James Hippel Power | TECH | Common Stock | Tax liability | -27.4% | -56,097 | 148,625 | 22 Apr 2026 | Direct | ||
| James Hippel Power | TECH | Common Stock | Options Exercise | 43.4% | 62,000 | 204,722 | 22 Apr 2026 | Direct | ||
| James Hippel Power | TECH | Stock Options (Right to Buy) | Options Exercise | -33.3% | -62,000 | 124,068 | 22 Apr 2026 | Direct | ||
| Kim Kelderman Power | TECH | Common Stock | Tax liability | -37.7% | -32,088 | 53,077 | 14 Apr 2026 | Direct | ||
| Kim Kelderman Power | TECH | Common Stock | Options Exercise | 75% | 36,500 | 85,165 | 14 Apr 2026 | Direct | ||
| Kim Kelderman Power | TECH | Stock Option (Right to Buy) | Options Exercise | -33.3% | -36,500 | 73,036 | 14 Apr 2026 | Direct | ||
| Shane Bohnen | TECH | Common Stock | Tax liability | -11.1% | -740 | 5,904 | 03 Apr 2026 | Direct | ||
| Shane Bohnen | TECH | Common Stock | Options Exercise | 51.5% | 2,259 | 6,644 | 03 Apr 2026 | Direct | ||
| Shane Bohnen | TECH | Restricted Stock Units | Options Exercise | -100% | -2,259 | 0 | 03 Apr 2026 | Direct | ||
| Steven C. Crouse | TECH | Stock Option (right to buy) | Award | 1,911 | 1,911 | 02 Mar 2026 | Direct | |||
| Steven C. Crouse | TECH | Restricted Stock Units | Award | 735 | 735 | 02 Mar 2026 | Direct | |||
| Steven C. Crouse | TECH | Performance Restricted Stock Units | Award | 2,387 | 2,387 | 02 Mar 2026 | Direct | |||
| Amy E. Herr | TECH | Common Stock | Sale | -90.8% | $116,791 | $59.10 | -1,976 | 200 | 17 Feb 2026 | By significant other |
| Amy E. Herr | TECH | Common Stock | Tax liability | -0.73% | -16 | 2,176 | 03 Feb 2026 | By significant other | ||
| Amy E. Herr | TECH | Common Stock | Options Exercise | 1.76% | 38 | 2,192 | 03 Feb 2026 | By significant other | ||
| Amy E. Herr | TECH | Restricted Stock Units | Options Exercise | -33% | -38 | 77 | 03 Feb 2026 | By significant other | ||
| Matthew McManus Power | TECH | Common Stock | Tax liability | -17.8% | -1,665 | 7,691 | 01 Feb 2026 | Direct | ||
| Matthew McManus Power | TECH | Common Stock | Options Exercise | 97.6% | 4,621 | 9,356 | 01 Feb 2026 | Direct | ||
| Matthew McManus Power | TECH | Restricted Stock Units | Options Exercise | -50% | -4,621 | 4,620 | 01 Feb 2026 | Direct | ||
| William Geist Power | TECH | Common Stock | Tax liability | -18.1% | -4,520 | 20,503 | 03 Nov 2025 | Direct | ||
| William Geist Power | TECH | Common Stock | Options Exercise | 65.6% | 9,911 | 25,023 | 03 Nov 2025 | Direct | ||
| William Geist Power | TECH | Restricted Stock Units | Options Exercise | -100% | -9,911 | 0 | 03 Nov 2025 | Direct | ||
| Kim Kelderman Power | TECH | Common Stock | Tax liability | -4.52% | -2,303 | 48,665 | 03 Nov 2025 | Direct | ||
| James Hippel Power | TECH | Common Stock | Tax liability | -7.68% | -11,865 | 142,722 | 03 Nov 2025 | Direct | ||
| James Hippel Power | TECH | Common Stock | Options Exercise | 19% | 24,704 | 154,587 | 03 Nov 2025 | Direct | ||
| James Hippel Power | TECH | Restricted Stock Units | Options Exercise | -100% | -24,704 | 0 | 03 Nov 2025 | Direct | ||
| Amy E. Herr | TECH | Common Stock | Award | 157.7% | 1,640 | 2,680 | 30 Oct 2025 | Direct | ||
| Amy E. Herr | TECH | Stock Option (Right to Buy) | Award | 3,777 | 3,777 | 30 Oct 2025 | Direct | |||
| Judith Klimovsky V | TECH | Common Stock | Award | 76.6% | 1,640 | 3,782 | 30 Oct 2025 | Direct |