SEC ownership of BIO-TECHNE Corp

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 CIK-linked ownership evidence from parsed SEC filings. 2 signals
Latest 13D/G holder
VANGUARD CAPITAL MANAGEMENT LLC
Latest parsed ownership date
31 Mar 2026
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000842023
Issuer location
Minneapolis, MN

Ownership snapshot

Top shareholders of BIO-TECHNE Corp (13F + 13D/G + 3/4/5)

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.

Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G 13F 3/4/5 Lead comparable stake: 7.4% 13D/G row: VANGUARD CAPITAL MANAGEMENT LLC Showing 1-8 of 50 holder rows.

Quick read

VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.4%.

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.

Open SEC evidence Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership Top 5
VANGUARD CAPITAL MANAGEMENT LLC 7.4%
BlackRock, Inc. 7%
FMR LLC 5%
PRICE T ROWE ASSOCIATES INC /MD/ 2.2%
Roeland Nusse Power 0.03%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
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
13F
5.4%
$445,928,201
8,532,873 shares
31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
Company
13F
4.1%
$338,662,412
6,480,337 shares
31 Mar 2026
STATE STREET CORP
13F
Company
13F
3.7%
$306,682,375
5,868,396 shares
31 Mar 2026
How to read this table

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

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$2,355,384.

Buys
$0
Insiders: 0
Sells
$2,355,384
Insiders: 3
Net
-$2,355,384
Shares: -42,692
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 42,692
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

Insider holders from Forms 3/4/5

Showing 1-19 of 19 reporting-owner rows connected to BIO-TECHNE Corp. Open a relationship link for the CIK-to-CIK filing trail.

Rows
19
Largest Forms 3/4/5 holder
Charles R. Kummeth
Net 12M change
-$2,355,384
Latest report
02 Jun 2026
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

Recent insider transactions for BIO-TECHNE Corp

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
* marks a reported price that did not pass the local price check.
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