Bio-Techne Corporation
US ˙ NasdaqGS ˙ US09073M1045

SecurityTECH / Bio-Techne Corporation
InstitutionOsterweis Capital Management Inc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Osterweis Capital Management Inc closes position in TECH / Bio-Techne Corporation

On November 14, 2025 - Osterweis Capital Management Inc filed a 13F-HR form disclosing ownership of 0 shares of Bio-Techne Corporation (US:TECH) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 149,591 shares of Bio-Techne Corporation. The current value of the position is $0 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.

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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)
2025-11-14 2025-09-30 13F BIO-TECHNE COM 09073M104 0 -100.00 0
2025-08-14 2025-06-30 13F BIO-TECHNE COM 09073M104 149,591 -117,100 -43.91 7,696 -50.78 0.2817
2025-06-05 2025-03-31 13F/A-1 BIO-TECHNE COM 09073M104 266,691 20,960 8.53 15,636 -11.66 0.7718
2025-05-14 2025-03-31 13F BIO-TECHNE COM 09073M104 266,691 20,960 156,361 0.6182
2025-06-05 2024-12-31 13F/A-1 BIO-TECHNE COM 09073M104 245,731 76,288 45.02 17,700 30.69 0.8236
2025-02-13 2024-12-31 13F BIO-TECHNE COM 09073M104 245,731 76,288 18 0.8236
2024-11-14 2024-09-30 13F BIO-TECHNE COM 09073M104 169,443 -3,070 -1.78 13,544 9.57 0.6861
2024-08-14 2024-06-30 13F BIO-TECHNE COM 09073M104 172,513 50,185 41.02 12,361 43.55 0.6387
2024-05-15 2024-03-31 13F BIO-TECHNE COM 09073M104 122,328 122,328 8,611 0.5057
2021-08-16 2021-06-30 13F BIO-TECHNE COM 09073M104 0 -25,670 -100.00 0 -100.00
2021-05-14 2021-03-31 13F BIO-TECHNE COM 09073M104 25,670 -4,780 -15.70 9,804 1.40 0.5343
2021-02-12 2020-12-31 13F BIO-TECHNE COM 09073M104 30,450 7,020 29.96 9,669 66.59 0.5767
2020-11-13 2020-09-30 13F BIO-TECHNE COM 09073M104 23,430 2,260 10.68 5,804 3.83 0.3917
2020-08-14 2020-06-30 13F BIO-TECHNE COM 09073M104 21,170 -100 -0.47 5,590 38.61 0.4052
2020-05-15 2020-03-31 13F BIO-TECHNE COM 09073M104 21,270 -7,660 -26.48 4,033 -36.49 0.3275
2020-02-14 2019-12-31 13F BIO TECHNE COM 09073M104 28,930 28,930 6,350 0.4391
2019-11-14 2019-09-30 13F BIO TECHNE COM 09073M104 0 -15,110 -100.00 0 -100.00
2019-08-14 2019-06-30 13F BIO TECHNE COM 09073M104 15,110 -29,825 -66.37 3,150 -64.69 0.2225
2019-05-15 2019-03-31 13F BIO TECHNE COM 09073M104 44,935 7,545 20.18 8,922 64.89 0.5582
2019-02-13 2018-12-31 13F BIO TECHNE COM 09073M104 37,390 -1,165 -3.02 5,411 -31.24 0.4163
2018-11-13 2018-09-30 13F BIO TECHNE COM 09073M104 38,555 8,340 27.60 7,869 76.04 0.5025
2018-08-13 2018-06-30 13F BIO TECHNE COM 09073M104 30,215 -21,000 -41.00 4,470 -42.22 0.2892
2018-05-14 2018-03-31 13F BIO TECHNE COM 09073M104 51,215 8,345 19.47 7,736 39.29 0.5503
2018-02-14 2017-12-31 13F BIO TECHNE COM 09073M104 42,870 9,050 26.76 5,554 35.86 0.3942
2017-11-13 2017-09-30 13F BIO TECHNE COM 09073M104 33,820 9,045 36.51 4,088 40.43 0.3066
2017-08-15 2017-06-30 13F BIO TECHNE COM 09073M104 24,775 24,775 2,911 0.2216
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.