William Blair Investment Management, LLC Pure Storage, Inc. Transaction History

William Blair Investment Management, LLC

$35.8 Billion
Q3 2025

A detailed history of William Blair Investment Management, LLC transactions in Pure Storage, Inc. stock. As of the latest transaction made, William Blair Investment Management, LLC holds 4,666,892 shares of PSTG stock, worth $395 Million. This represents 1.09% of its overall portfolio holdings.

Number of Shares

4,666,892

Previous 4,926,836 5.28%

Holding current value

$395 Million

Previous $284 Million 37.87%

% of portfolio

1.09%

Previous 0.82%

31 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	SELL	$54.47 - $88.29 $14.2 Million - $23 Million	-259,944 Reduced 5.28%	4,666,892 $391 Million
Q2 2025 Jul 29, 2025	BUY	$37.18 - $57.58 $97.1 Million - $150 Million	2,612,300 Added 112.86%	4,926,836 $284 Million
Q1 2025 May 09, 2025	SELL	$44.27 - $72.37 $9.33 Million - $15.2 Million	-210,672 Reduced 8.34%	2,314,536 $102 Million
Q4 2024 Feb 10, 2025	BUY	$48.19 - $66.6 $115 Million - $159 Million	2,386,864 Added 1725.31%	2,525,208 $155 Million
Q3 2024 Nov 08, 2024	SELL	$45.73 - $67.71 $14.5 Million - $21.5 Million	-317,318 Reduced 69.64%	138,344 $6.95 Million

Q2 2024 Aug 08, 2024	SELL	$49.46 - $68.35 $9.93 Million - $13.7 Million	-200,839 Reduced 30.59%	455,662 $29.3 Million
Q1 2024 May 08, 2024	SELL	$34.82 - $57.16 $128,799 - $211,434	-3,699 Reduced 0.56%	656,501 $34.1 Million
Q4 2023 Feb 09, 2024	SELL	$31.81 - $37.93 $871,594 - $1.04 Million	-27,400 Reduced 3.98%	660,200 $23.5 Million
Q3 2023 Nov 09, 2023	BUY	$33.49 - $40.17 $2.37 Million - $2.84 Million	70,620 Added 11.45%	687,600 $24.5 Million
Q2 2023 Aug 10, 2023	SELL	$22.22 - $37.74 $67 Million - $114 Million	-3,017,110 Reduced 83.02%	616,980 $22.7 Million
Q1 2023 May 12, 2023	SELL	$23.09 - $31.96 $25.2 Million - $34.9 Million	-1,092,640 Reduced 23.12%	3,634,090 $92.7 Million
Q4 2022 Feb 09, 2023	SELL	$26.28 - $31.56 $9.16 Million - $11 Million	-348,704 Reduced 6.87%	4,726,730 $126 Million
Q3 2022 Nov 09, 2022	SELL	$24.76 - $31.34 $47.9 Million - $60.6 Million	-1,933,543 Reduced 27.59%	5,075,434 $139 Million
Q2 2022 Aug 10, 2022	SELL	$22.33 - $35.25 $19 Million - $29.9 Million	-848,655 Reduced 10.8%	7,008,977 $180 Million
Q1 2022 May 11, 2022	SELL	$24.56 - $36.0 $168 Million - $246 Million	-6,829,587 Reduced 46.5%	7,857,632 $277 Million
Q4 2021 Feb 14, 2022	SELL	$24.87 - $34.16 $19.2 Million - $26.4 Million	-771,563 Reduced 4.99%	14,687,219 $478 Million
Q3 2021 Nov 10, 2021	SELL	$17.93 - $27.11 $4.45 Million - $6.72 Million	-248,011 Reduced 1.58%	15,458,782 $389 Million
Q2 2021 Aug 12, 2021	BUY	$17.03 - $22.1 $4.18 Million - $5.42 Million	245,386 Added 1.59%	15,706,793 $307 Million
Q1 2021 May 13, 2021	SELL	$19.37 - $28.9 $4.8 Million - $7.16 Million	-247,708 Reduced 1.58%	15,461,407 $333 Million
Q4 2020 Feb 09, 2021	SELL	$15.55 - $24.2 $6.59 Million - $10.3 Million	-423,947 Reduced 2.63%	15,709,115 $355 Million
Q3 2020 Nov 06, 2020	SELL	$14.4 - $18.16 $1.31 Million - $1.65 Million	-90,901 Reduced 0.56%	16,133,062 $248 Million
Q2 2020 Aug 12, 2020	BUY	$10.62 - $17.61 $481,001 - $797,592	45,292 Added 0.28%	16,223,963 $281 Million
Q1 2020 May 08, 2020	BUY	$8.76 - $19.74 $5.56 Million - $12.5 Million	634,991 Added 4.09%	16,178,671 $199 Million
Q4 2019 Feb 12, 2020	BUY	$15.55 - $20.48 $41.2 Million - $54.2 Million	2,648,556 Added 20.54%	15,543,680 $266 Million
Q3 2019 Nov 12, 2019	BUY	$13.01 - $18.17 $5.94 Million - $8.3 Million	456,953 Added 3.67%	12,895,124 $218 Million
Q2 2019 Aug 09, 2019	SELL	$15.27 - $23.38 $3.25 Million - $4.97 Million	-212,714 Reduced 1.68%	12,438,171 $190 Million
Q1 2019 May 10, 2019	BUY	$15.43 - $21.79 $42.6 Million - $60.2 Million	2,761,026 Added 27.92%	12,650,885 $276 Million
Q4 2018 Feb 13, 2019	SELL	$14.8 - $25.86 $18.6 Million - $32.6 Million	-1,259,661 Reduced 11.3%	9,889,859 $159 Million
Q3 2018 Nov 13, 2018	BUY	$21.66 - $28.66 $69.5 Million - $92 Million	3,209,534 Added 40.42%	11,149,520 $289 Million
Q2 2018 Aug 14, 2018	BUY	$18.35 - $25.39 $25.2 Million - $34.9 Million	1,375,379 Added 20.95%	7,939,986 $190 Million
Q1 2018 May 14, 2018	BUY	$16.16 - $22.39 $106 Million - $147 Million	6,564,607 New	6,564,607 $131 Million

Others Institutions Holding PSTG

# of Institutions

874

Shares Held

224M

Call Options Held

3.75M

Put Options Held

3.05M

View Full List

About Pure Storage, Inc.

Ticker PSTG
Exchange NYSE
Sector Technology
Industry Computer Hardware
Shares Outstandng 298,918,016
Market Cap $25.3B
Description
Pure Storage, Inc. provides data storage technologies, products, and services in the United States and internationally. The company's Purity software is shared across its products and provides enterprise-class data services, such as data reduction, data protection, and encryption, as well as storage protocols, including block, file, and object. ...

More about PSTG

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William Blair Investment Management, LLC Pure Storage, Inc. Transaction History