How many shares of ARGX does SEI INVESTMENTS CO own?

As of 2026-Q2, SEI INVESTMENTS CO holds 255,073 shares of ARGX (ARGENX SE).

What is SEI INVESTMENTS CO's ARGX position worth?

As of 2026-Q2, SEI INVESTMENTS CO's ARGX position is worth $236.7M.

In 2026-Q2, SEI INVESTMENTS CO decreased their ARGX position (-11.1% change in shares).

Based on available 13F filings, SEI INVESTMENTS CO first reported a position in ARGX in 2019-Q1. They have held the position across 30 quarters.

Position history for SEI INVESTMENTS CO's holdings in ARGENX SE

Current Value

$236.7M

Current Shares

255,073

Total Value Change

+$235M

Total Shares Change

+242,231

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	255,073	-11.1%	$236.7M	0.2%	$927.77	0
2026-Q1	Decreased	286,966	-13.2%	$209.6M	0.2%	$730.25	0
2025-Q4	Increased	330,506	+5.8%	$277.9M	0.3%	$840.95	39
2025-Q3	Decreased	312,268	-1.3%	$230.3M	0.2%	$737.56	0
2025-Q2	Decreased	316,399	-12.3%	$174.4M	0.2%	$551.22	0
2025-Q1	Decreased	361,000	-1.5%	$213.7M	0.3%	$591.87	0
2024-Q4	Decreased	366,620	-3.7%	$225.5M	0.3%	$615.00	0
2024-Q3	Decreased	380,695	-0.2%	$206.4M	0.3%	$542.08	0
2024-Q2	Increased	381,544	+15.3%	$164.1M	0.2%	$430.04	42
2024-Q1	Decreased	331,067	-0.3%	$130.3M	0.2%	$393.72	0
2023-Q4	Increased	332,017	+16.0%	$126.3M	0.2%	$380.43	42
2023-Q3	Increased	286,310	+10.1%	$140.8M	0.3%	$491.63	40
2023-Q2	Decreased	260,158	-2.5%	$101.4M	0.2%	$389.73	0
2023-Q1	Increased	266,874	+55.7%	$99.4M	0.2%	$372.58	51
2022-Q4	Decreased	171,385	-4.5%	$64.9M	0.1%	$378.83	0
2022-Q3	Increased	179,483	+1.9%	$63.4M	0.1%	$353.05	36
2022-Q2	Decreased	176,153	-9.7%	$66.8M	0.1%	$378.88	0
2022-Q1	Increased	195,131	+8.6%	$61.6M	0.1%	$315.31	38
2021-Q4	Increased	179,720	+19.8%	$62.9M	0.1%	$350.19	42
2021-Q3	Increased	150,001	+5.6%	$45.3M	0.1%	$302.00	31
2021-Q2	Increased	142,037	+11.3%	$42.8M	0.1%	$301.07	32
2021-Q1	Increased	127,569	+50.3%	$35.1M	0.1%	$275.39	40
2020-Q4	Increased	84,860	+58.1%	$25M	0.1%	$294.09	41
2020-Q3	Increased	53,684	+31.1%	$14.1M	0.0%	$262.52	36
2020-Q2	Increased	40,940	+11.3%	$9.2M	0.0%	$225.23	31
2020-Q1	Increased	36,801	+42.0%	$4.8M	0.0%	$131.73	36
2019-Q4	Decreased	25,919	-3.9%	$4.2M	0.0%	$160.52	0
2019-Q3	Increased	26,966	+14.0%	$3.1M	0.0%	$113.96	30
2019-Q2	Increased	23,663	+84.3%	$3.4M	0.0%	$141.58	41
2019-Q1	New	12,842	-	$1.6M	0.0%	$124.84	35

Other major holders of ARGX: FMR LLC