William Blair & Company’s Microsoft MSFT Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2017 Q3	–	Sell	-2,700	Closed	-$186K	–	1454
2017 Q2	$186K	Buy	2,700 +300	+13%	+$20.6K	﹤0.01%	1358
2017 Q1	$158K	Sell	2,400 -300	-11%	-$19.2K	﹤0.01%	1254
2016 Q4	$167K	Buy	+2,700	New	+$162K	﹤0.01%	1179
2015 Q2	–	Sell	-5,000	Closed	-$203K	–	2222
2015 Q1	$203K	Sell	5,000 -12,000	-71%	-$522K	﹤0.01%	2015
2014 Q4	$790K	Buy	+17,000	New	+$798K	﹤0.01%	1567
2014 Q3	–	Sell	-170	Closed	-$205K	–	2145
2014 Q2	$205K	Buy	+170	New	+$6.88K	﹤0.01%	1943

Other funds holding MSFT

BlackRock New York $5.72T AUM 30.48% 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

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

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

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

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

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

William Blair & Company reduced its Microsoft (MSFT) stake by 2.1% in Q1 2026, selling an estimated $32M and leaving 3,498,110 shares worth $1.29B. The position accounts for 3.71% of the portfolio, ranked #2.

William Blair & Company first reported a position in MSFT in Q2 2013 and has held it in 52 quarters since. The position peaked at $1.87B in Q3 2025. 6,184 funds tracked by Wall St. Rank hold MSFT as of Q1 2026.

William Blair & Company held 3,498,110 shares of Microsoft worth $1.29B as of Q1 2026.
William Blair & Company sold 76,458 Microsoft shares in Q1 2026, an estimated $32M.
Microsoft made up 3.71% of William Blair & Company's portfolio in Q1 2026, its #2 holding.
William Blair & Company first reported a position in Microsoft in Q2 2013 and has held it in 52 quarters since.
William Blair & Company's Microsoft position peaked at $1.87B in Q3 2025.
6,184 funds tracked by Wall St. Rank held Microsoft as of Q1 2026.

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