Sei Investments CO Argenx Se Transaction History

Sei Investments CO

$89.6 Billion
Q3 2025

A detailed history of Sei Investments CO transactions in Argenx Se stock. As of the latest transaction made, Sei Investments CO holds 312,268 shares of ARGX stock, worth $284 Million. This represents 0.26% of its overall portfolio holdings.

Number of Shares

312,268

Previous 316,399 1.31%

Holding current value

$284 Million

Previous $174 Million 32.06%

% of portfolio

0.26%

Previous 0.21%

30 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 13, 2025	SELL	$538.64 - $768.0 $2.23 Million - $3.17 Million	-4,131 Reduced 1.31%	312,268 $230 Million
Q2 2025 Aug 14, 2025	SELL	$532.27 - $656.65 $23.7 Million - $29.3 Million	-44,601 Reduced 12.35%	316,399 $174 Million
Q1 2025 May 14, 2025	SELL	$571.0 - $671.75 $3.85 Million - $4.53 Million	-6,751 Reduced 1.84%	361,000 $214 Million
Q1 2025 May 13, 2025	BUY	$571.0 - $671.75 $645,801 - $759,749	1,131 Added 0.31%	367,751 $218 Million
Q4 2024 Feb 11, 2025	SELL	$520.52 - $638.33 $7.33 Million - $8.98 Million	-14,075 Reduced 3.7%	366,620 $225 Million

Q3 2024 Nov 12, 2024	SELL	$434.22 - $551.9 $368,652 - $468,563	-849 Reduced 0.22%	380,695 $206 Million
Q2 2024 Aug 13, 2024	BUY	$356.01 - $451.55 $18 Million - $22.8 Million	50,477 Added 15.25%	381,544 $164 Million
Q1 2024 May 07, 2024	SELL	$356.95 - $413.29 $339,102 - $392,625	-950 Reduced 0.29%	331,067 $130 Million
Q4 2023 Feb 14, 2024	BUY	$338.91 - $506.01 $15.5 Million - $23.1 Million	45,707 Added 15.96%	332,017 $126 Million
Q3 2023 Nov 14, 2023	BUY	$369.35 - $548.43 $9.66 Million - $14.3 Million	26,152 Added 10.05%	286,310 $141 Million
Q2 2023 Aug 11, 2023	SELL	$360.14 - $422.58 $2.42 Million - $2.84 Million	-6,716 Reduced 2.52%	260,158 $101 Million
Q1 2023 May 12, 2023	BUY	$334.23 - $403.65 $31.9 Million - $38.5 Million	95,489 Added 55.72%	266,874 $99.4 Million
Q4 2022 Feb 10, 2023	SELL	$342.17 - $402.31 $2.77 Million - $3.26 Million	-8,098 Reduced 4.51%	171,385 $64.9 Million
Q3 2022 Nov 14, 2022	BUY	$343.2 - $395.75 $1.14 Million - $1.32 Million	3,330 Added 1.89%	179,483 $63.4 Million
Q2 2022 Aug 15, 2022	SELL	$269.58 - $378.88 $5.12 Million - $7.19 Million	-18,978 Reduced 9.73%	176,153 $66.8 Million
Q1 2022 May 13, 2022	BUY	$254.45 - $351.06 $3.92 Million - $5.41 Million	15,411 Added 8.58%	195,131 $61.6 Million
Q4 2021 Feb 14, 2022	BUY	$272.01 - $353.03 $8.08 Million - $10.5 Million	29,719 Added 19.81%	179,720 $62.9 Million
Q3 2021 Nov 12, 2021	BUY	$295.0 - $350.58 $2.35 Million - $2.79 Million	7,964 Added 5.61%	150,001 $45.3 Million
Q2 2021 Aug 06, 2021	BUY	$257.11 - $319.92 $3.72 Million - $4.63 Million	14,468 Added 11.34%	142,037 $42.8 Million
Q1 2021 May 12, 2021	BUY	$268.3 - $380.31 $11.5 Million - $16.2 Million	42,709 Added 50.33%	127,569 $35.1 Million
Q4 2020 Feb 08, 2021	BUY	$248.13 - $308.36 $7.74 Million - $9.61 Million	31,176 Added 58.07%	84,860 $25 Million
Q3 2020 Dec 04, 2020	SELL	$215.51 - $272.51 $862 - $1,090	-4 Reduced 0.01%	53,684 $14.1 Million
Q3 2020 Nov 06, 2020	BUY	$215.51 - $272.51 $2.75 Million - $3.47 Million	12,748 Added 31.14%	53,688 $14.1 Million
Q2 2020 Aug 17, 2020	BUY	$127.44 - $232.72 $1.91 Million - $3.5 Million	15,021 Added 57.95%	40,940 $9.22 Million
Q2 2020 Aug 11, 2020	SELL	$127.44 - $232.72 $1.39 Million - $2.53 Million	-10,882 Reduced 29.57%	25,919 $4.16 Million
Q1 2020 May 14, 2020	BUY	$108.83 - $165.23 $1.18 Million - $1.8 Million	10,882 Added 41.98%	36,801 $4.85 Million
Q4 2019 Feb 06, 2020	SELL	$106.59 - $164.21 $111,599 - $171,927	-1,047 Reduced 3.88%	25,919 $4.16 Million
Q3 2019 Nov 12, 2019	BUY	$113.31 - $150.51 $374,262 - $497,134	3,303 Added 13.96%	26,966 $3.07 Million
Q2 2019 Aug 14, 2019	BUY	$115.0 - $141.58 $1.24 Million - $1.53 Million	10,821 Added 84.26%	23,663 $3.35 Million
Q1 2019 May 15, 2019	BUY	$98.85 - $134.59 $1.27 Million - $1.73 Million	12,842 New	12,842 $1.6 Million

Others Institutions Holding ARGX

# of Institutions

528

Shares Held

26M

Call Options Held

589K

Put Options Held

320K

View Full List

About ARGENX SE

Ticker ARGX
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 55,323,800
Market Cap $50.2B
Description
argenx SE, a biotechnology company, focuses on developing various therapies for the treatment of autoimmune diseases in the United States, the Netherlands, Belgium, Japan, Switzerland, Germany and France. Its lead product candidate is efgartigimod for the treatment of patients with myasthenia gravis, immune thrombocytopenia, pemphigus vulgaris, ...

More about ARGX

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Sei Investments CO Argenx Se Transaction History