William Blair & Company’s Boeing BA Stock Holding History

William Blair & Company’s Portfolio BA Stock Details BA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$184M	Buy	922,102 +243,515	+36%	+$55.5M	0.53%	44
2025 Q4	$147M	Buy	678,587 +13,581	+2%	+$2.79M	0.4%	57
2025 Q3	$144M	Buy	665,006 +6,951	+1%	+$1.57M	0.38%	66
2025 Q2	$138M	Buy	658,055 +180,247	+38%	+$34M	0.38%	67
2025 Q1	$81.5M	Buy	477,808 +101,171	+27%	+$17.5M	0.25%	92
2024 Q4	$66.7M	Buy	376,637 +226,135	+150%	+$35.5M	0.19%	110
2024 Q3	$22.9M	Buy	150,502 +159	+0.1%	+$27.3K	0.07%	213
2024 Q2	$27.4M	Sell	150,343 -21,365	-12%	-$3.81M	0.08%	174
2024 Q1	$33.1M	Sell	171,708 -35,099	-17%	-$7.21M	0.1%	153
2023 Q4	$53.9M	Sell	206,807 -73,716	-26%	-$15.8M	0.18%	116
2023 Q3	$53.8M	Buy	280,523 +7,711	+3%	+$1.69M	0.21%	111
2023 Q2	$57.6M	Buy	272,812 +2,852	+1%	+$592K	0.21%	108
2023 Q1	$57.3M	Buy	269,960 +16,379	+6%	+$3.4M	0.23%	100
2022 Q4	$48.3M	Buy	253,581 +7,045	+3%	+$1.15M	0.21%	109
2022 Q3	$29.9M	Buy	246,536 +32,899	+15%	+$5.05M	0.14%	147
2022 Q2	$29.2M	Sell	213,637 -27,994	-12%	-$4.13M	0.13%	153
2022 Q1	$46.3M	Sell	241,631 -10,743	-4%	-$2.16M	0.16%	138
2021 Q4	$50.8M	Sell	252,374 -16,095	-6%	-$3.4M	0.16%	133
2021 Q3	$59M	Sell	268,469 -4,255	-2%	-$949K	0.2%	115
2021 Q2	$65.3M	Buy	272,724 +6,616	+2%	+$1.6M	0.23%	103
2021 Q1	$67.8M	Buy	266,108 +18,514	+7%	+$4.12M	0.26%	94
2020 Q4	$53M	Buy	247,594 +35,705	+17%	+$6.86M	0.19%	117
2020 Q3	$35M	Buy	211,889 +99,621	+89%	+$17M	0.15%	141
2020 Q2	$20.6M	Sell	112,268 -26,711	-19%	-$4.11M	0.1%	175
2020 Q1	$20.7M	Sell	138,979 -118,640	-46%	-$32.5M	0.13%	151
2019 Q4	$83.9M	Buy	257,619 +4,796	+2%	+$1.7M	0.43%	57
2019 Q3	$96.2M	Sell	252,823 -29,459	-10%	-$10.5M	0.55%	42
2019 Q2	$103M	Buy	282,282 +5,748	+2%	+$2.1M	0.59%	38
2019 Q1	$105M	Buy	276,534 +73,499	+36%	+$28.3M	0.64%	35
2018 Q4	$65.5M	Buy	203,035 +33,323	+20%	+$11.5M	0.48%	53
2018 Q3	$63.1M	Buy	169,712 +13,273	+8%	+$4.66M	0.39%	65
2018 Q2	$52.5M	Buy	156,439 +187	+0.1%	+$64.3K	0.36%	71
2018 Q1	$51.2M	Sell	156,252 -5,544	-3%	-$1.87M	0.36%	70
2017 Q4	$47.7M	Buy	161,796 +3,559	+2%	+$963K	0.32%	80
2017 Q3	$40.2M	Buy	158,237 +614	+0.4%	+$143K	0.3%	86
2017 Q2	$31.2M	Buy	157,623 +6,141	+4%	+$1.14M	0.23%	108
2017 Q1	$27M	Buy	151,482 +6,704	+5%	+$1.14M	0.22%	120
2016 Q4	$22.5M	Sell	144,778 -4,009	-3%	-$585K	0.2%	126
2016 Q3	$19.6M	Sell	148,787 -2,876	-2%	-$379K	0.17%	150
2016 Q2	$19.7M	Sell	151,663 -6,439	-4%	-$839K	0.18%	140
2016 Q1	$20.1M	Buy	158,102 +5,205	+3%	+$646K	0.19%	136
2015 Q4	$22.1M	Buy	152,897 +18,349	+14%	+$2.64M	0.21%	125
2015 Q3	$17.6M	Buy	134,548 +4,623	+4%	+$641K	0.15%	163
2015 Q2	$18M	Sell	129,925 -1,445	-1%	-$211K	0.03%	689
2015 Q1	$19.7M	Sell	131,370 -600	-0.5%	-$87.4K	0.03%	604
2014 Q4	$17.2M	Sell	131,970 -11,558	-8%	-$1.47M	0.03%	647
2014 Q3	$18.3M	Sell	143,528 -434,803	-75%	-$54.8M	0.03%	607
2014 Q2	$73.6M	Sell	578,331 -12,222	-2%	-$1.6M	0.12%	239
2014 Q1	$74.1M	Sell	590,553 -215,611	-27%	-$28.1M	0.12%	238
2013 Q4	$110M	Buy	806,164 +447,909	+125%	+$58.2M	0.18%	162
2013 Q3	$42.1M	Buy	358,255 +131,889	+58%	+$14.2M	0.07%	365
2013 Q2	$23.2M	Buy	+226,366	New	+$21.5M	0.05%	455

Other funds holding BA

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Newport Trust Company Washington, District of Columbia $40.7B AUM 24.62% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Loomis, Sayles & Company Boston, Massachusetts $74.3B AUM 24.01% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

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

William Blair & Company increased its Boeing (BA) stake by 36% in Q1 2026, buying an estimated $55.5M and bringing the position to 922,102 shares worth $184M. The position accounts for 0.53% of the portfolio, ranked #44.

William Blair & Company first reported a position in BA in Q2 2013 and has held it in 52 quarters since. 2,510 funds tracked by Wall St. Rank hold BA as of Q1 2026.

William Blair & Company held 922,102 shares of Boeing worth $184M as of Q1 2026.
William Blair & Company bought 243,515 Boeing shares in Q1 2026, an estimated $55.5M.
Boeing made up 0.53% of William Blair & Company's portfolio in Q1 2026, its #44 holding.
William Blair & Company first reported a position in Boeing in Q2 2013 and has held it in 52 quarters since.
2,510 funds tracked by Wall St. Rank held Boeing as of Q1 2026.

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