William Blair & Company
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William Blair & Company’s Teledyne Technologies TDY Stock Holding History

William Blair & Company’s Portfolio TDY Stock Details TDY Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$261K Buy
391
+47
+14% +$29.6K ﹤0.01% 1475
2026
Q1 		$208K Buy
+344
New +$215K ﹤0.01% 1469
2023
Q4 		– Sell
-6,277
Closed -$2.56M – 1849
2023
Q3 		$2.56M Sell
6,277
-2,371
-27% -$962K 0.01% 595
2023
Q2 		$3.56M Buy
8,648
+197
+2% +$81.2K 0.01% 515
2023
Q1 		$3.78M Buy
8,451
+6,776
+405% +$2.87M 0.02% 501
2022
Q4 		$670K Sell
1,675
-833
-33% -$324K ﹤0.01% 953
2022
Q3 		$846K Sell
2,508
-22
-0.9% -$8.4K ﹤0.01% 871
2022
Q2 		$949K Buy
2,530
+989
+64% +$412K ﹤0.01% 863
2022
Q1 		$728K Sell
1,541
-546
-26% -$235K ﹤0.01% 1030
2021
Q4 		$912K Buy
2,087
+113
+6% +$49.2K ﹤0.01% 998
2021
Q3 		$848K Sell
1,974
-192
-9% -$84.8K ﹤0.01% 984
2021
Q2 		$907K Buy
2,166
+127
+6% +$53.9K ﹤0.01% 949
2021
Q1 		$843K Sell
2,039
-796
-28% -$307K ﹤0.01% 954
2020
Q4 		$1.11M Buy
2,835
+324
+13% +$116K ﹤0.01% 816
2020
Q3 		$779K Buy
2,511
+16
+0.6% +$5.05K ﹤0.01% 835
2020
Q2 		$776K Sell
2,495
-840
-25% -$276K ﹤0.01% 801
2020
Q1 		$991K Buy
3,335
+386
+13% +$133K 0.01% 666
2019
Q4 		$1.02M Buy
2,949
+2,290
+347% +$770K 0.01% 773
2019
Q3 		$212K Buy
+659
New +$197K ﹤0.01% 1247
2018
Q4 		– Sell
-2,208
Closed -$545K – 1780
2018
Q3 		$545K Hold
2,208
– – ﹤0.01% 931
2018
Q2 		$440K Sell
2,208
-316
-13% -$62.4K ﹤0.01% 985
2018
Q1 		$472K Buy
2,524
+367
+17% +$69.3K ﹤0.01% 938
2017
Q4 		$391K Buy
+2,157
New +$379K ﹤0.01% 1046

Other funds holding TDY

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $139B AUM 29.06% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
Aristotle Capital Management
Aristotle Capital Management Los Angeles, California $47.7B AUM 13.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

William Blair & Company's TDY Position: Q2 2026 in Review

William Blair & Company increased its Teledyne Technologies (TDY) stake by 14% in Q2 2026, buying an estimated $29.6K and bringing the position to 391 shares worth $261K. The position accounts for ﹤0.01% of the portfolio, ranked #1475.

William Blair & Company first reported a position in TDY in Q4 2017 and has held it in 23 quarters since. The position peaked at $3.78M in Q1 2023. 888 funds tracked by Wall St. Rank hold TDY as of Q2 2026.

  • William Blair & Company held 391 shares of Teledyne Technologies worth $261K as of Q2 2026.
  • William Blair & Company bought 47 Teledyne Technologies shares in Q2 2026, an estimated $29.6K.
  • Teledyne Technologies made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1475 holding.
  • William Blair & Company first reported a position in Teledyne Technologies in Q4 2017 and has held it in 23 quarters since.
  • William Blair & Company's Teledyne Technologies position peaked at $3.78M in Q1 2023.
  • 888 funds tracked by Wall St. Rank held Teledyne Technologies as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.