William Blair Investment Management, LLC Selective Insurance Group Inc Transaction History

William Blair Investment Management, LLC

$34.7 Billion
Q2 2025

A detailed history of William Blair Investment Management, LLC transactions in Selective Insurance Group Inc stock. As of the latest transaction made, William Blair Investment Management, LLC holds 418,673 shares of SIGI stock, worth $34.4 Million. This represents 0.1% of its overall portfolio holdings.

Number of Shares

418,673

Previous 291,661 43.55%

Holding current value

$34.4 Million

Previous $26.7 Million 35.88%

% of portfolio

0.1%

Previous 0.08%

19 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Jul 29, 2025	BUY	$82.37 - $92.83 $10.5 Million - $11.8 Million	127,012 Added 43.55%	418,673 $36.3 Million
Q1 2025 May 09, 2025	BUY	$78.49 - $95.48 $22.9 Million - $27.8 Million	291,661 New	291,661 $26.7 Million
Q3 2021 Nov 10, 2021	SELL	$75.53 - $85.18 $1.46 Million - $1.64 Million	-19,278 Closed	0 $0
Q2 2021 Aug 12, 2021	SELL	$73.33 - $81.15 $10.9 Million - $12 Million	-148,025 Reduced 88.48%	19,278 $1.56 Million
Q1 2021 May 13, 2021	SELL	$63.6 - $77.36 $6.23 Million - $7.58 Million	-97,947 Reduced 36.93%	167,303 $12.1 Million
Q4 2020 Feb 09, 2021	SELL	$50.92 - $68.51 $266,057 - $357,964	-5,225 Reduced 1.93%	265,250 $17.8 Million
Q3 2020 Nov 06, 2020	BUY	$48.64 - $60.91 $1.11 Million - $1.39 Million	22,758 Added 9.19%	270,475 $13.9 Million
Q2 2020 Aug 12, 2020	SELL	$42.9 - $57.96 $24,839 - $33,558	-579 Reduced 0.23%	247,717 $13.1 Million
Q1 2020 May 08, 2020	BUY	$41.31 - $69.98 $1.99 Million - $3.37 Million	48,177 Added 24.07%	248,296 $12.3 Million
Q4 2019 Feb 12, 2020	SELL	$64.57 - $76.75 $5.22 Million - $6.21 Million	-80,854 Reduced 28.78%	200,119 $13 Million
Q3 2019 Nov 12, 2019	SELL	$74.39 - $80.59 $1.34 Million - $1.46 Million	-18,072 Reduced 6.04%	280,973 $21.1 Million
Q2 2019 Aug 09, 2019	SELL	$63.75 - $77.99 $3.03 Million - $3.7 Million	-47,469 Reduced 13.7%	299,045 $22.4 Million
Q1 2019 May 10, 2019	SELL	$59.16 - $66.99 $908,106 - $1.03 Million	-15,350 Reduced 4.24%	346,514 $21.9 Million
Q4 2018 Feb 13, 2019	SELL	$56.5 - $66.62 $6.23 Million - $7.34 Million	-110,194 Reduced 23.34%	361,864 $22.1 Million
Q3 2018 Nov 13, 2018	SELL	$55.85 - $65.6 $1.88 Million - $2.21 Million	-33,652 Reduced 6.65%	472,058 $30 Million
Q2 2018 Aug 14, 2018	SELL	$54.9 - $61.45 $3.74 Million - $4.18 Million	-68,061 Reduced 11.86%	505,710 $27.8 Million
Q1 2018 May 14, 2018	SELL	$56.05 - $61.7 $1.04 Million - $1.15 Million	-18,628 Reduced 3.14%	573,771 $34.8 Million
Q4 2017 Feb 14, 2018	BUY	$54.0 - $61.7 $152,010 - $173,685	2,815 Added 0.48%	592,399 $34.8 Million
Q3 2017 Nov 13, 2017	BUY	$46.7 - $53.85 $27.5 Million - $31.7 Million	589,584	589,584 $31.7 Million

Others Institutions Holding SIGI

# of Institutions

379

Shares Held

50.2M

Call Options Held

9.9K

Put Options Held

View Full List

About SELECTIVE INSURANCE GROUP INC

Ticker SIGI
Exchange NASDAQ
Sector Financial Services
Industry Insurance—Property & Casualty
Shares Outstandng 60,329,600
Market Cap $4.96B
Description
Selective Insurance Group, Inc., together with its subsidiaries, provides insurance products and services in the United States. It operates through four segments: Standard Commercial Lines, Standard Personal Lines, E&S Lines, and Investments. The company offers property insurance products, which covers the financial consequences of accidenta...

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William Blair Investment Management, LLC Selective Insurance Group Inc Transaction History