William Blair Investment Management
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William Blair Investment Management’s TransDigm Group TDG Stock Holding History

William Blair Investment Management’s Portfolio TDG Stock Details TDG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2018
Q4 		– Sell
-104,460
Closed -$38.9M – 433
2018
Q3 		$38.9M Sell
104,460
-2,947
-3% -$1.06M 0.13% 173
2018
Q2 		$37.1M Sell
107,407
-3,273
-3% -$1.08M 0.14% 170
2018
Q1 		$34M Sell
110,680
-14,775
-12% -$4.35M 0.13% 171
2017
Q4 		$34.5M Sell
125,455
-47,674
-28% -$13M 0.13% 175
2017
Q3 		$44.3M Sell
173,129
-61,505
-26% -$16.6M 0.16% 154
2017
Q2 		$63.1M Sell
234,634
-10,170
-4% -$2.58M 0.23% 122
2017
Q1 		$53.9M Sell
244,804
-846,941
-78% -$202M 0.2% 138
2016
Q4 		$272M Sell
1,091,745
-62,558
-5% -$16.4M 1.09% 17
2016
Q3 		$334M Buy
1,154,303
+3,895
+0.3% +$1.09M 1.26% 6
2016
Q2 		$303M Buy
1,150,408
+52,169
+5% +$12.7M 1.2% 10
2016
Q1 		$242M Buy
1,098,239
+73,282
+7% +$16M 0.96% 20
2015
Q4 		$234M Buy
1,024,957
+127,361
+14% +$28.7M 0.95% 27
2015
Q3 		$191M Buy
+897,596
New +$205M 0.39% 68

Other funds holding TDG

Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Tiger Global Management
Tiger Global Management New York $22.8B AUM 30.07% 1-Year Est. Return
BP
Berkshire Partners Boston, Massachusetts $5.53M AUM 55.51% 1-Year Est. Return
SP
Stockbridge Partners Boston, Massachusetts $4.14B AUM 16.9% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

William Blair Investment Management's TDG Position: Q4 2018 in Review

William Blair Investment Management sold out of TransDigm Group (TDG) in Q4 2018, closing a stake of 104,460 shares — an estimated $38.9M sold.

William Blair Investment Management first reported a position in TDG in Q3 2015 and held it in 13 quarters. The position peaked at $334M in Q3 2016. 487 funds tracked by Wall St. Rank hold TDG as of Q4 2018.

  • William Blair Investment Management reported no remaining TransDigm Group position as of Q4 2018 after selling out during the quarter.
  • William Blair Investment Management sold 104,460 TransDigm Group shares in Q4 2018, an estimated $38.9M.
  • William Blair Investment Management first reported a position in TransDigm Group in Q3 2015 and held it in 13 quarters.
  • William Blair Investment Management's TransDigm Group position peaked at $334M in Q3 2016.
  • 487 funds tracked by Wall St. Rank held TransDigm Group as of Q4 2018.

Based on William Blair Investment Management's 13F filing for Q4 2018, filed 13 Feb 2019.