William Blair & Company
CSX icon

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

William Blair & Company’s Portfolio CSX Stock Details CSX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$5.53M Sell
134,788
-4,435
-3% -$174K 0.02% 485
2025
Q4 		$5.05M Sell
139,223
-16,264
-10% -$582K 0.01% 513
2025
Q3 		$5.52M Sell
155,487
-6,790
-4% -$232K 0.01% 496
2025
Q2 		$5.3M Sell
162,277
-8,251
-5% -$248K 0.01% 476
2025
Q1 		$5.02M Buy
170,528
+8,919
+6% +$283K 0.02% 483
2024
Q4 		$5.22M Sell
161,609
-9,629
-6% -$330K 0.02% 488
2024
Q3 		$5.91M Buy
171,238
+1,497
+0.9% +$50.8K 0.02% 457
2024
Q2 		$5.68M Buy
169,741
+5,621
+3% +$191K 0.02% 453
2024
Q1 		$6.08M Buy
164,120
+17,109
+12% +$624K 0.02% 436
2023
Q4 		$5.1M Buy
147,011
+11,536
+9% +$367K 0.02% 461
2023
Q3 		$4.17M Buy
135,475
+10,130
+8% +$321K 0.02% 477
2023
Q2 		$4.27M Buy
125,345
+1,939
+2% +$61.3K 0.02% 482
2023
Q1 		$3.69M Sell
123,406
-1,224
-1% -$37.6K 0.01% 506
2022
Q4 		$3.86M Sell
124,630
-151
-0.1% -$4.54K 0.02% 481
2022
Q3 		$3.32M Sell
124,781
-5,293
-4% -$165K 0.02% 509
2022
Q2 		$3.78M Buy
130,074
+7,740
+6% +$252K 0.02% 487
2022
Q1 		$4.58M Buy
122,334
+13,829
+13% +$489K 0.02% 486
2021
Q4 		$4.08M Buy
108,505
+46,653
+75% +$1.65M 0.01% 526
2021
Q3 		$1.84M Buy
61,852
+1,081
+2% +$34.6K 0.01% 730
2021
Q2 		$1.95M Sell
60,771
-7,200
-11% -$237K 0.01% 712
2021
Q1 		$2.19M Sell
67,971
-13,920
-17% -$425K 0.01% 663
2020
Q4 		$2.48M Sell
81,891
-7,266
-8% -$209K 0.01% 593
2020
Q3 		$2.31M Buy
89,157
+6,507
+8% +$161K 0.01% 555
2020
Q2 		$1.92M Buy
82,650
+9,972
+14% +$221K 0.01% 565
2020
Q1 		$1.39M Sell
72,678
-15,024
-17% -$351K 0.01% 594
2019
Q4 		$2.12M Buy
87,702
+9,555
+12% +$226K 0.01% 590
2019
Q3 		$1.8M Sell
78,147
-2,178
-3% -$50.7K 0.01% 597
2019
Q2 		$2.07M Buy
80,325
+19,218
+31% +$495K 0.01% 566
2019
Q1 		$1.52M Buy
61,107
+10,695
+21% +$248K 0.01% 631
2018
Q4 		$1.04M Buy
50,412
+1,680
+3% +$38.6K 0.01% 679
2018
Q3 		$1.2M Buy
48,732
+6,273
+15% +$149K 0.01% 687
2018
Q2 		$903K Sell
42,459
-2,793
-6% -$57.5K 0.01% 766
2018
Q1 		$840K Sell
45,252
-6,000
-12% -$112K 0.01% 756
2017
Q4 		$940K Sell
51,252
-2,520
-5% -$44.6K 0.01% 760
2017
Q3 		$973K Sell
53,772
-228,924
-81% -$3.93M 0.01% 734
2017
Q2 		$5.14M Sell
282,696
-99,102
-26% -$1.7M 0.04% 336
2017
Q1 		$6.18M Buy
381,798
+352,437
+1,200% +$5.37M 0.05% 284
2016
Q4 		$352K Buy
29,361
+6,396
+28% +$71.7K ﹤0.01% 941
2016
Q3 		$233K Sell
22,965
-1,170
-5% -$11.1K ﹤0.01% 1108
2016
Q2 		$210K Sell
24,135
-43,782
-64% -$381K ﹤0.01% 1101
2016
Q1 		$583K Sell
67,917
-28,365
-29% -$230K 0.01% 750
2015
Q4 		$832K Sell
96,282
-4,356
-4% -$39.5K 0.01% 669
2015
Q3 		$902K Buy
100,638
+20,556
+26% +$202K 0.01% 785
2015
Q2 		$872K Sell
80,082
-4,782
-6% -$55.4K ﹤0.01% 1613
2015
Q1 		$937K Sell
84,864
-372,054
-81% -$4.28M ﹤0.01% 1566
2014
Q4 		$5.52M Buy
456,918
+353,817
+343% +$4.14M 0.01% 1029
2014
Q3 		$1.1M Sell
103,101
-717
-0.7% -$7.39K ﹤0.01% 1437
2014
Q2 		$1.06M Buy
103,818
+4,827
+5% +$47K ﹤0.01% 1436
2014
Q1 		$956K Buy
98,991
+1,050
+1% +$9.74K ﹤0.01% 1440
2013
Q4 		$939K Sell
97,941
-23,397
-19% -$210K ﹤0.01% 1405
2013
Q3 		$1.04M Sell
121,338
-7,377
-6% -$61.9K ﹤0.01% 1319
2013
Q2 		$994K Buy
+128,715
New +$1.06M ﹤0.01% 1280

Other funds holding CSX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

William Blair & Company's CSX Position: Q1 2026 in Review

William Blair & Company reduced its CSX Corp (CSX) stake by 3.2% in Q1 2026, selling an estimated $174K and leaving 134,788 shares worth $5.53M. The position accounts for 0.02% of the portfolio, ranked #485.

William Blair & Company first reported a position in CSX in Q2 2013 and has held it in 52 quarters since. The position peaked at $6.18M in Q1 2017. 1,863 funds tracked by Wall St. Rank hold CSX as of Q1 2026.

  • William Blair & Company held 134,788 shares of CSX Corp worth $5.53M as of Q1 2026.
  • William Blair & Company sold 4,435 CSX Corp shares in Q1 2026, an estimated $174K.
  • CSX Corp made up 0.02% of William Blair & Company's portfolio in Q1 2026, its #485 holding.
  • William Blair & Company first reported a position in CSX Corp in Q2 2013 and has held it in 52 quarters since.
  • William Blair & Company's CSX Corp position peaked at $6.18M in Q1 2017.
  • 1,863 funds tracked by Wall St. Rank held CSX Corp as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.