Holocene Advisors
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Holocene Advisors’s argenx ARGX Stock Holding History

Holocene Advisors’s Portfolio ARGX Stock Details ARGX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-6,866
Closed -$3.78M – 746
2025
Q2 		$3.78M Hold
6,866
– – 0.01% 456
2025
Q1 		$4.06M Sell
6,866
-3,704
-35% -$2.34M 0.01% 423
2024
Q4 		$6.5M Sell
10,570
-184,534
-95% -$108M 0.02% 347
2024
Q3 		$106M Sell
195,104
-230,510
-54% -$116M 0.43% 77
2024
Q2 		$183M Sell
425,614
-63,186
-13% -$24.2M 0.76% 33
2024
Q1 		$192M Sell
488,800
-39,898
-8% -$15.5M 0.71% 46
2023
Q4 		$201M Buy
528,698
+156,543
+42% +$72.9M 0.78% 31
2023
Q3 		$183M Buy
372,155
+13,899
+4% +$6.8M 0.8% 29
2023
Q2 		$140M Buy
358,256
+22,534
+7% +$8.86M 0.6% 50
2023
Q1 		$125M Sell
335,722
-174,870
-34% -$64.7M 0.61% 47
2022
Q4 		$193M Sell
510,592
-2,460
-0.5% -$920K 1.18% 11
2022
Q3 		$181M Sell
513,052
-9,769
-2% -$3.62M 1.16% 10
2022
Q2 		$198M Sell
522,821
-6,403
-1% -$2.06M 1.2% 6
2022
Q1 		$167M Buy
529,224
+338,995
+178% +$98.6M 0.87% 26
2021
Q4 		$66.6M Buy
+190,229
New +$57.9M 0.35% 99

Other funds holding ARGX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return

Holocene Advisors's ARGX Position: Q3 2025 in Review

Holocene Advisors sold out of argenx (ARGX) in Q3 2025, closing a stake of 6,866 shares — an estimated $3.78M sold.

Holocene Advisors first reported a position in ARGX in Q4 2021 and held it in 15 quarters. The position peaked at $201M in Q4 2023. 469 funds tracked by Wall St. Rank hold ARGX as of Q3 2025.

  • Holocene Advisors reported no remaining argenx position as of Q3 2025 after selling out during the quarter.
  • Holocene Advisors sold 6,866 argenx shares in Q3 2025, an estimated $3.78M.
  • Holocene Advisors first reported a position in argenx in Q4 2021 and held it in 15 quarters.
  • Holocene Advisors's argenx position peaked at $201M in Q4 2023.
  • 469 funds tracked by Wall St. Rank held argenx as of Q3 2025.

Based on Holocene Advisors's 13F filing for Q3 2025, filed 14 Nov 2025.