Bio-Techne Corporation
US ˙ NasdaqGS ˙ US09073M1045

SecurityTECH / Bio-Techne Corporation
InstitutionRhumbline Advisers
Latest Disclosed Ownership290,889 shares
Latest Disclosed Value $ 15,201,800
Rhumbline Advisers reports 3.49% increase in ownership of TECH / Bio-Techne Corporation

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 290,889 shares of Bio-Techne Corporation (US:TECH) valued at $15,201,859 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 281,080 shares of Bio-Techne Corporation. This represents a change in shares of 3.49% during the quarter. The current value of the position is $14,791,706 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F BIO-TECHNE CORP COM COM 09073M104 290,889 9,809 3.49 15,202 -8.04 0.0130
2026-02-13 2025-12-31 13F BIO-TECHNE CORP COM COM 09073M104 281,080 -20,087 -6.67 16,530 -1.33 0.0134
2025-11-06 2025-09-30 13F BIO-TECHNE CORP COM COM 09073M104 301,167 6,546 2.22 16,754 10.52 0.0135
2025-08-12 2025-06-30 13F BIO-TECHNE CORP COM COM 09073M104 294,621 -5,853 -1.95 15,158 -13.95 0.0130
2025-05-29 2025-03-31 13F/A-1 BIO-TECHNE CORP COM COM 09073M104 300,474 39,345 15.07 17,617 -6.34 0.0165
2025-04-08 2025-03-31 13F BIO-TECHNE CORP COM COM 09073M104 300,474 39,345 17,617 0.0165
2025-05-29 2024-12-31 13F/A-1 BIO-TECHNE CORP COM COM 09073M104 261,129 -646 -0.25 18,809 -10.10 0.0168
2025-01-30 2024-12-31 13F BIO-TECHNE CORP COM COM 09073M104 261,129 -646 18,809 0.0168
2024-11-12 2024-09-30 13F BIO-TECHNE CORP COM COM 09073M104 261,775 -10,347 -3.80 20,924 7.31 0.0189
2024-08-01 2024-06-30 13F BIO-TECHNE CORP COM COM 09073M104 272,122 -26,997 -9.03 19,497 -7.40 0.0183
2024-05-09 2024-03-31 13F BIO-TECHNE CORP COM COM 09073M104 299,119 1,384 0.46 21,055 -8.35 0.0202
2024-02-08 2023-12-31 13F BIO-TECHNE CORP COM COM 09073M104 297,735 -445 -0.15 22,973 13.18 0.0241
2023-11-09 2023-09-30 13F BIO-TECHNE CORP COM COM 09073M104 298,180 -49,257 -14.18 20,297 -28.43 0.0236
2023-08-08 2023-06-30 13F BIO-TECHNE CORP COM COM 09073M104 347,437 3,543 1.03 28,361 113,344.00 0.0318
2023-05-11 2023-03-31 13F BIO-TECHNE CORP COM COM 09073M104 343,894 23,480 7.33 26 -99.91 0.0315
2023-02-14 2022-12-31 13F BIO-TECHNE CORP COM COM 09073M104 320,414 242,398 310.70 26,556 19.85 0.0357
2022-11-10 2022-09-30 13F BIO-TECHNE CORP COM COM 09073M104 78,016 2,232 2.95 22,157 -15.66 0.0330
2022-08-11 2022-06-30 13F BIO-TECHNE CORP COM COM 09073M104 75,784 1,624 2.19 26,270 -18.20 0.0383
2022-05-12 2022-03-31 13F BIO-TECHNE CORP COM COM 09073M104 74,160 754 1.03 32,114 -15.44 0.0413
2022-02-10 2021-12-31 13F BIO-TECHNE CORP COM COM 09073M104 73,406 1,474 2.05 37,976 8.95 0.0465
2021-11-12 2021-09-30 13F BIO-TECHNE CORP COM COM 09073M104 71,932 -43,669 -37.78 34,856 -33.03 0.0472
2021-08-05 2021-06-30 13F BIO-TECHNE CORP COM COM 09073M104 115,601 -2,692 -2.28 52,051 15.21 0.0683
2021-05-06 2021-03-31 13F BIO-TECHNE CORP COM COM 09073M104 118,293 -2,522 -2.09 45,180 17.76 0.0614
2021-02-10 2020-12-31 13F BIO-TECHNE CORP COM COM 09073M104 120,815 -3,724 -2.99 38,365 24.35 0.0530
2020-11-12 2020-09-30 13F BIO-TECHNE CORP COM COM 09073M104 124,539 -11,435 -8.41 30,852 -14.08 0.0483
2020-08-13 2020-06-30 13F BIO-TECHNE CORP COM COM 09073M104 135,974 9,295 7.34 35,907 49.48 0.0600
2020-05-06 2020-03-31 13F BIO-TECHNE CORP COM COM 09073M104 126,679 6,073 5.04 24,021 -9.27 0.0503
2020-02-05 2019-12-31 13F BIO-TECHNE CORP COM COM 09073M104 120,606 -851 -0.70 26,474 11.40 0.0443
2019-10-23 2019-09-30 13F BIO-TECHNE CORP COM COM 09073M104 121,457 -2,319 -1.87 23,765 -7.91 0.0434
2019-08-14 2019-06-30 13F BIO-TECHNE CORP COM COM 09073M104 123,776 -1,142 -0.91 25,806 4.05 0.0484
2019-05-01 2019-03-31 13F BIO-TECHNE CORP COM COM 09073M104 124,918 -3,413 -2.66 24,802 33.55 0.0480
2019-01-31 2018-12-31 13F BIO-TECHNE CORP COM COM 09073M104 128,331 27,014 26.66 18,572 -10.19 0.0404
2018-11-07 2018-09-30 13F BIO-TECHNE CORP COM COM 09073M104 101,317 1,858 1.87 20,680 40.54 0.0399
2018-08-06 2018-06-30 13F BIO-TECHNE CORP COM COM 09073M104 99,459 -350 -0.35 14,715 -2.39 0.0297
2018-05-02 2018-03-31 13F BIO-TECHNE CORP COM COM 09073M104 99,809 10,719 12.03 15,075 30.61 0.0315
2018-02-09 2017-12-31 13F BIO-TECHNE CORP COM COM 09073M104 89,090 -1,527 -1.69 11,542 5.36 0.0234
2017-11-06 2017-09-30 13F BIO-TECHNE CORP COM COM 09073M104 90,617 -11,316 -11.10 10,955 -8.53 0.0238
2017-08-02 2017-06-30 13F BIO-TECHNE CORP COM COM 09073M104 101,933 -1,060 -1.03 11,977 14.40 0.0273
2017-05-02 2017-03-31 13F BIO-TECHNE CORP COM COM 09073M104 102,993 906 0.89 10,469 -0.28 0.0245
2017-01-27 2016-12-31 13F BIO-TECHNE CORP COM COM 09073M104 102,087 2,365 2.37 10,498 -3.86 0.0266
2016-11-08 2016-09-30 13F BIO-TECHNE CORP COM COM 09073M104 99,722 -1,364 -1.35 10,920 -4.20 0.0301
2016-08-11 2016-06-30 13F BIO-TECHNE CORP COM COM 09073M104 101,086 5,257 5.49 11,399 25.84 0.0338
2016-05-02 2016-03-31 13F BIO-TECHNE COM 09073M104 95,829 3,500 3.79 9,058 9.00 0.0281
2016-02-03 2015-12-31 13F BIO-TECHNE COM 09073M104 92,329 1,745 1.93 8,310 -0.78 0.0267
2015-11-04 2015-09-30 13F BIO-TECHNE COM 09073M104 90,584 -5,315 -5.54 8,375 -11.31 0.0285
2015-08-04 2015-06-30 13F BIO-TECHNE COM 09073M104 95,899 2,281 2.44 9,443 0.58 0.0301
2015-05-12 2015-03-31 13F BIO-TECHNE COM 09073M104 93,618 7,332 8.50 9,389 17.76 0.0271
2015-02-06 2014-12-31 13F BIO-TECHNE COM 09073M104 86,286 935 1.10 7,973 -0.15 0.0232
2014-11-12 2014-09-30 13F BIO-TECHNE COM 09073M104 85,351 -9,220 -9.75 7,985 -8.78 0.0240
2014-08-06 2014-06-30 13F TECHNE CORP USD.0 COM 878377100 94,571 -6,941 -6.84 8,754 1.02 0.0257
2014-05-06 2014-03-31 13F TECHNE CORP USD.0 COM 878377100 101,512 5,495 5.72 8,666 -4.66 0.0257
2014-02-03 2013-12-31 13F TECHNE CORP USD.0 COM 878377100 96,017 -5,388 -5.31 9,090 11.97 0.0268
2013-11-05 2013-09-30 13F TECHNE CORP USD.0 COM 878377100 101,405 -12,955 -11.33 8,118 2.76 0.0252
2013-08-07 2013-06-30 13F TECHNE CORP USD.0 COM 878377100 114,360 114,360 7,900 0.0254
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.