William Blair Investment Management, LLC Exact Sciences Corp Transaction History

William Blair Investment Management, LLC

$35.8 Billion
Q3 2025

A detailed history of William Blair Investment Management, LLC transactions in Exact Sciences Corp stock. As of the latest transaction made, William Blair Investment Management, LLC holds 2,555,051 shares of EXAS stock, worth $171 Million. This represents 0.39% of its overall portfolio holdings.

Number of Shares

2,555,051

Previous 2,020,170 26.48%

Holding current value

$171 Million

Previous $107 Million 30.21%

% of portfolio

0.39%

Previous 0.31%

21 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	BUY	$40.91 - $56.0 $21.9 Million - $30 Million	534,881 Added 26.48%	2,555,051 $140 Million
Q2 2025 Jul 29, 2025	SELL	$40.31 - $58.08 $9.23 Million - $13.3 Million	-228,868 Reduced 10.18%	2,020,170 $107 Million
Q1 2025 May 09, 2025	SELL	$43.04 - $58.51 $51.5 Million - $69.9 Million	-1,195,473 Reduced 34.71%	2,249,038 $97.4 Million
Q4 2024 Feb 10, 2025	SELL	$49.33 - $71.97 $41.5 Million - $60.5 Million	-840,442 Reduced 19.61%	3,444,511 $194 Million
Q3 2024 Nov 08, 2024	BUY	$42.43 - $70.83 $17.2 Million - $28.7 Million	405,758 Added 10.46%	4,284,953 $292 Million

Q2 2024 Aug 08, 2024	BUY	$41.33 - $74.26 $160 Million - $288 Million	3,879,195 New	3,879,195 $164 Million
Q3 2021 Nov 10, 2021	SELL	$90.24 - $124.05 $16.3 Million - $22.4 Million	-180,333 Closed	0 $0
Q2 2021 Aug 12, 2021	BUY	$93.66 - $139.27 $2.71 Million - $4.03 Million	28,923 Added 19.1%	180,333 $22.4 Million
Q1 2021 May 13, 2021	SELL	$116.57 - $155.01 $537,271 - $714,441	-4,609 Reduced 2.95%	151,410 $20 Million
Q4 2020 Feb 09, 2021	SELL	$99.61 - $142.12 $202 Million - $289 Million	-2,030,978 Reduced 92.87%	156,019 $20.7 Million
Q3 2020 Nov 06, 2020	BUY	$72.92 - $102.01 $29.7 Million - $41.6 Million	407,772 Added 22.92%	2,186,997 $223 Million
Q2 2020 Aug 12, 2020	BUY	$55.75 - $92.75 $99.2 Million - $165 Million	1,779,225 New	1,779,225 $155 Million
Q3 2019 Nov 12, 2019	SELL	$90.37 - $122.49 $89 Million - $121 Million	-984,426 Closed	0 $0
Q2 2019 Aug 09, 2019	SELL	$89.51 - $118.04 $38.8 Million - $51.2 Million	-433,441 Reduced 30.57%	984,426 $116 Million
Q1 2019 May 10, 2019	SELL	$61.98 - $96.5 $40.4 Million - $63 Million	-652,565 Reduced 31.52%	1,417,867 $123 Million
Q4 2018 Feb 13, 2019	SELL	$56.04 - $82.66 $14.8 Million - $21.8 Million	-263,613 Reduced 11.29%	2,070,432 $131 Million
Q3 2018 Nov 13, 2018	BUY	$48.29 - $80.6 $25.1 Million - $42 Million	520,579 Added 28.71%	2,334,045 $184 Million
Q2 2018 Aug 14, 2018	SELL	$37.84 - $69.96 $6.21 Million - $11.5 Million	-164,153 Reduced 8.3%	1,813,466 $108 Million
Q1 2018 May 14, 2018	BUY	$39.82 - $57.53 $15.8 Million - $22.8 Million	396,146 Added 25.05%	1,977,619 $79.8 Million
Q4 2017 Feb 14, 2018	SELL	$46.49 - $60.51 $45.8 Million - $59.6 Million	-984,534 Reduced 38.37%	1,581,473 $83.1 Million
Q3 2017 Nov 13, 2017	BUY	$37.05 - $47.12 $95.1 Million - $121 Million	2,566,007	2,566,007 $121 Million

Others Institutions Holding EXAS

# of Institutions

670

Shares Held

164M

Call Options Held

2.2M

Put Options Held

1.69M

View Full List

About EXACT SCIENCES CORP

Ticker EXAS
Exchange NASDAQ
Sector Healthcare
Industry Diagnostics & Research
Shares Outstandng 176,960,000
Market Cap $11.9B
Description
Exact Sciences Corporation provides cancer screening and diagnostic test products in the United States and internationally. The company offers Cologuard, a non-invasive stool-based DNA screening test to detect DNA and hemoglobin biomarkers associated with colorectal cancer and pre-cancer. It also provides Oncotype DX, a gene expression tests for...

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William Blair Investment Management, LLC Exact Sciences Corp Transaction History