William Blair Investment Management
TECH icon

William Blair Investment Management’s Bio-Techne TECH Stock Holding History

William Blair Investment Management’s Portfolio TECH Stock Details TECH Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$287K Sell
4,060
-2,458,427
-100% -$133M ﹤0.01% 392
2026
Q1 		$129M Buy
2,462,487
+64,222
+3% +$3.85M 0.43% 64
2025
Q4 		$141M Buy
2,398,265
+688,603
+40% +$41.8M 0.39% 66
2025
Q3 		$95.1M Buy
1,709,662
+737,577
+76% +$39.5M 0.25% 107
2025
Q2 		$50M Sell
972,085
-18,014
-2% -$905K 0.13% 137
2025
Q1 		$58M Sell
990,099
-84,784
-8% -$5.75M 0.16% 135
2024
Q4 		$77.4M Sell
1,074,883
-35,352
-3% -$2.6M 0.19% 124
2024
Q3 		$88.7M Sell
1,110,235
-22,759
-2% -$1.71M 0.22% 116
2024
Q2 		$81.2M Sell
1,132,994
-1,039,231
-48% -$76.5M 0.21% 114
2024
Q1 		$153M Sell
2,172,225
-62,773
-3% -$4.49M 0.4% 80
2023
Q4 		$172M Sell
2,234,998
-79,271
-3% -$5.22M 0.5% 63
2023
Q3 		$158M Sell
2,314,269
-189
-0% -$14.9K 0.52% 62
2023
Q2 		$189M Buy
+2,314,458
New +$186M 0.61% 49
2022
Q2 		– Sell
-1,903,976
Closed -$206M – 445
2022
Q1 		$206M Sell
1,903,976
-430,140
-18% -$44.4M 0.62% 50
2021
Q4 		$302M Sell
2,334,116
-281,260
-11% -$34.5M 0.82% 27
2021
Q3 		$317M Sell
2,615,376
-108,540
-4% -$13.2M 0.89% 25
2021
Q2 		$307M Sell
2,723,916
-581,832
-18% -$61.2M 0.96% 26
2021
Q1 		$316M Buy
3,305,748
+382,580
+13% +$34.9M 1.02% 18
2020
Q4 		$232M Buy
+2,923,168
New +$212M 0.77% 36

Other funds holding TECH

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

William Blair Investment Management's TECH Position: Q2 2026 in Review

William Blair Investment Management reduced its Bio-Techne (TECH) stake by 100% in Q2 2026, selling an estimated $133M and leaving 4,060 shares worth $287K. The position accounts for ﹤0.01% of the portfolio, ranked #392.

William Blair Investment Management first reported a position in TECH in Q4 2020 and has held it in 19 quarters since. The position peaked at $317M in Q3 2021. 595 funds tracked by Wall St. Rank hold TECH as of Q2 2026.

  • William Blair Investment Management held 4,060 shares of Bio-Techne worth $287K as of Q2 2026.
  • William Blair Investment Management sold 2,458,427 Bio-Techne shares in Q2 2026, an estimated $133M.
  • Bio-Techne made up ﹤0.01% of William Blair Investment Management's portfolio in Q2 2026, its #392 holding.
  • William Blair Investment Management first reported a position in Bio-Techne in Q4 2020 and has held it in 19 quarters since.
  • William Blair Investment Management's Bio-Techne position peaked at $317M in Q3 2021.
  • 595 funds tracked by Wall St. Rank held Bio-Techne as of Q2 2026.

Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.