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Driehaus Capital Management’s Astronics ATRO Stock Holding History

Driehaus Capital Management’s Portfolio ATRO Stock Details ATRO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$21M Sell
257,865
-133,900
-34% -$9.14M 0.12% 227
2026
Q1 		$21.8M Sell
391,765
-408,033
-51% -$24.6M 0.16% 190
2025
Q4 		$36.2M Buy
799,798
+486,832
+156% +$20.4M 0.25% 133
2025
Q3 		$11.9M Buy
+312,966
New +$9.52M 0.09% 263
2015
Q4 		– Sell
-63,789
Closed -$1.41M – 545
2015
Q3 		$1.41M Sell
63,789
-11,799
-16% -$367K 0.05% 312
2015
Q2 		$2.94M Sell
75,588
-8,468
-10% -$334K 0.1% 268
2015
Q1 		$3.39M Buy
+84,056
New +$2.86M 0.12% 215
2014
Q3 		– Sell
-65,194
Closed -$1.68M – 533
2014
Q2 		$1.68M Sell
65,194
-216,842
-77% -$5.63M 0.05% 376
2014
Q1 		$8.17M Buy
282,036
+169,609
+151% +$4.77M 0.26% 98
2013
Q4 		$2.62M Sell
112,427
-62,755
-36% -$1.38M 0.09% 261
2013
Q3 		$3.18M Buy
+175,182
New +$2.82M 0.12% 220

Other funds holding ATRO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
PP
Pertento Partners London, United Kingdom $1.86B AUM 53.86% 1-Year Est. Return
NCGI
Next Century Growth Investors Plymouth, Minnesota $1.89B AUM 151.53% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Driehaus Capital Management's ATRO Position: Q2 2026 in Review

Driehaus Capital Management reduced its Astronics (ATRO) stake by 34% in Q2 2026, selling an estimated $9.14M and leaving 257,865 shares worth $21M. The position accounts for 0.12% of the portfolio, ranked #227.

Driehaus Capital Management first reported a position in ATRO in Q3 2013 and has held it in 11 quarters since. The position peaked at $36.2M in Q4 2025. 310 funds tracked by Wall St. Rank hold ATRO as of Q2 2026.

  • Driehaus Capital Management held 257,865 shares of Astronics worth $21M as of Q2 2026.
  • Driehaus Capital Management sold 133,900 Astronics shares in Q2 2026, an estimated $9.14M.
  • Astronics made up 0.12% of Driehaus Capital Management's portfolio in Q2 2026, its #227 holding.
  • Driehaus Capital Management first reported a position in Astronics in Q3 2013 and has held it in 11 quarters since.
  • Driehaus Capital Management's Astronics position peaked at $36.2M in Q4 2025.
  • 310 funds tracked by Wall St. Rank held Astronics as of Q2 2026.

Based on Driehaus Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.