William Blair & Company
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William Blair & Company’s GATX Corp GATX Stock Holding History

William Blair & Company’s Portfolio GATX Stock Details GATX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-2,395
Closed -$409K – 2028
2026
Q1 		$409K Buy
2,395
+157
+7% +$28.2K ﹤0.01% 1218
2025
Q4 		$380K Buy
2,238
+196
+10% +$32.3K ﹤0.01% 1230
2025
Q3 		$357K Buy
2,042
+278
+16% +$45K ﹤0.01% 1243
2025
Q2 		$271K Buy
+1,764
New +$264K ﹤0.01% 1299

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

William Blair & Company sold out of GATX Corp (GATX) in Q2 2026, closing a stake of 2,395 shares — an estimated $409K sold.

William Blair & Company first reported a position in GATX in Q2 2025 and held it in 4 quarters. The position peaked at $409K in Q1 2026. 408 funds tracked by Wall St. Rank hold GATX as of Q2 2026.

  • William Blair & Company reported no remaining GATX Corp position as of Q2 2026 after selling out during the quarter.
  • William Blair & Company sold 2,395 GATX Corp shares in Q2 2026, an estimated $409K.
  • William Blair & Company first reported a position in GATX Corp in Q2 2025 and held it in 4 quarters.
  • William Blair & Company's GATX Corp position peaked at $409K in Q1 2026.
  • 408 funds tracked by Wall St. Rank held GATX Corp as of Q2 2026.

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