William Blair Investment Management, LLC Trans Union Transaction History

William Blair Investment Management, LLC

$35.8 Billion
Q3 2025

A detailed history of William Blair Investment Management, LLC transactions in Trans Union stock. As of the latest transaction made, William Blair Investment Management, LLC holds 4,678,809 shares of TRU stock, worth $371 Million. This represents 1.1% of its overall portfolio holdings.

Number of Shares

4,678,809

Previous 4,739,103 1.27%

Holding current value

$371 Million

Previous $417 Million 6.01%

% of portfolio

1.1%

Previous 1.2%

20 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	SELL	$83.78 - $99.22 $5.05 Million - $5.98 Million	-60,294 Reduced 1.27%	4,678,809 $392 Million
Q2 2025 Jul 29, 2025	BUY	$69.26 - $91.89 $96.6 Million - $128 Million	1,394,813 Added 41.71%	4,739,103 $417 Million
Q1 2025 May 09, 2025	SELL	$80.45 - $100.25 $2.13 Million - $2.65 Million	-26,452 Reduced 0.78%	3,344,290 $278 Million
Q4 2024 Feb 10, 2025	BUY	$92.71 - $108.67 $73.2 Million - $85.8 Million	789,497 Added 30.59%	3,370,742 $313 Million
Q3 2024 Nov 08, 2024	BUY	$72.72 - $106.05 $160 Million - $233 Million	2,198,113 Added 573.72%	2,581,245 $270 Million

Q2 2024 Aug 08, 2024	BUY	$66.7 - $80.14 $25.6 Million - $30.7 Million	383,132 New	383,132 $28.4 Million
Q4 2020 Feb 09, 2021	SELL	$79.15 - $100.97 $156 Million - $200 Million	-1,975,946 Closed	0 $0
Q3 2020 Nov 06, 2020	SELL	$80.25 - $92.25 $2.59 Million - $2.98 Million	-32,259 Reduced 1.61%	1,975,946 $166 Million
Q2 2020 Aug 12, 2020	BUY	$59.05 - $93.21 $1.17 Million - $1.85 Million	19,894 Added 1.0%	2,008,205 $175 Million
Q1 2020 May 08, 2020	SELL	$54.98 - $100.35 $30.8 Million - $56.2 Million	-559,628 Reduced 21.96%	1,988,311 $132 Million
Q4 2019 Feb 12, 2020	SELL	$78.24 - $87.0 $42.3 Million - $47.1 Million	-540,939 Reduced 17.51%	2,547,939 $218 Million
Q3 2019 Nov 12, 2019	SELL	$73.5 - $84.91 $3.79 Million - $4.38 Million	-51,592 Reduced 1.64%	3,088,878 $251 Million
Q2 2019 Aug 09, 2019	SELL	$63.68 - $73.51 $1.74 Million - $2.01 Million	-27,336 Reduced 0.86%	3,140,470 $231 Million
Q1 2019 May 10, 2019	BUY	$54.15 - $66.85 $19.2 Million - $23.7 Million	355,272 Added 12.63%	3,167,806 $212 Million
Q4 2018 Feb 13, 2019	SELL	$52.61 - $75.03 $8.92 Million - $12.7 Million	-169,507 Reduced 5.68%	2,812,534 $160 Million
Q3 2018 Nov 13, 2018	SELL	$70.65 - $76.64 $11.8 Million - $12.8 Million	-166,446 Reduced 5.29%	2,982,041 $219 Million
Q2 2018 Aug 14, 2018	SELL	$55.65 - $72.88 $2.03 Million - $2.66 Million	-36,478 Reduced 1.15%	3,148,487 $226 Million
Q1 2018 May 14, 2018	BUY	$54.73 - $61.35 $40.5 Million - $45.4 Million	740,307 Added 30.28%	3,184,965 $181 Million
Q4 2017 Feb 14, 2018	BUY	$47.5 - $56.21 $5.09 Million - $6.02 Million	107,067 Added 4.58%	2,444,658 $134 Million
Q3 2017 Nov 13, 2017	BUY	$41.61 - $49.39 $97.3 Million - $115 Million	2,337,591	2,337,591 $110 Million

Others Institutions Holding TRU

# of Institutions

631

Shares Held

204M

Call Options Held

852K

Put Options Held

213K

View Full List

About TransUnion

Ticker TRU
Exchange NYSE
Sector Industrials
Industry Consulting Services
Shares Outstandng 192,700,000
Market Cap $15.3B
Description
TransUnion provides risk and information solutions. The company operates in three segments: U.S. Markets, International, and Consumer Interactive. The U.S. Markets segment provides consumer reports, actionable insights, and analytics to businesses. These businesses use its services to acquire new customers; assess consumer ability to pay for ser...

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William Blair Investment Management, LLC Trans Union Transaction History