Ken Griffin Annexon, Inc. Transaction History

Citadel Advisors LLC

$618 Billion
Q3 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Annexon, Inc. stock. As of the latest transaction made, Citadel Advisors LLC holds 61,200 shares of ANNX stock, worth $175,032. This represents 0.0% of its overall portfolio holdings.

Number of Shares

61,200

Previous 13,267 361.29%

Holding current value

$175,032

Previous $31,000 487.1%

% of portfolio

0.0%

Previous 0.0%

20 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$2.05 - $3.37 $316,177 - $519,765	154,233 Added 1162.53%	167,500 $499,000
Q2 2025 Aug 14, 2025	BUY	$1.38 - $2.73 $1,120 - $2,216	812 Added 6.52%	13,267 $31,000
Q1 2025 May 15, 2025	SELL	$1.93 - $5.5 $24,400 - $69,536	-12,643 Reduced 50.37%	12,455 $24,000
Q4 2024 Feb 14, 2025	BUY	$4.44 - $7.63 $86,402 - $148,479	19,460 Added 345.16%	25,098 $128,000
Q3 2024 Nov 14, 2024	BUY	$4.49 - $7.2 $25,314 - $40,593	5,638 New	5,638 $33,000

Q1 2024 May 15, 2024	SELL	$4.03 - $7.81 $3.22 Million - $6.24 Million	-799,012 Reduced 75.54%	258,675 $1.85 Million
Q4 2023 Feb 14, 2024	BUY	$1.63 - $4.63 $607,541 - $1.73 Million	372,725 Added 54.42%	1,057,687 $4.8 Million
Q3 2023 Nov 14, 2023	SELL	$2.13 - $3.84 $101,554 - $183,083	-47,678 Reduced 6.51%	684,962 $1.62 Million
Q2 2023 Aug 14, 2023	SELL	$2.1 - $6.37 $3.53 Million - $10.7 Million	-1,680,477 Reduced 69.64%	732,640 $2.58 Million
Q1 2023 May 15, 2023	BUY	$3.74 - $7.46 $2.04 Million - $4.08 Million	546,334 Added 29.27%	2,413,117 $9.29 Million
Q4 2022 Feb 14, 2023	BUY	$4.56 - $6.61 $2.1 Million - $3.05 Million	460,678 Added 32.76%	1,866,783 $9.65 Million
Q3 2022 Nov 14, 2022	SELL	$3.75 - $6.63 $290,842 - $514,209	-77,558 Reduced 5.23%	1,406,105 $8.69 Million
Q2 2022 Aug 15, 2022	SELL	$2.11 - $4.06 $542,917 - $1.04 Million	-257,307 Reduced 14.78%	1,483,663 $5.59 Million
Q1 2022 May 16, 2022	BUY	$2.73 - $11.94 $718,940 - $3.14 Million	263,348 Added 17.82%	1,740,970 $4.75 Million
Q4 2021 Feb 14, 2022	SELL	$11.49 - $22.0 $4.42 Million - $8.47 Million	-385,001 Reduced 20.67%	1,477,622 $17 Million
Q3 2021 Nov 15, 2021	SELL	$16.35 - $23.4 $2.17 Million - $3.11 Million	-132,780 Reduced 6.65%	1,862,623 $34.7 Million
Q2 2021 Aug 16, 2021	SELL	$17.81 - $27.48 $1.75 Million - $2.69 Million	-98,022 Reduced 4.68%	1,995,403 $44.9 Million
Q1 2021 May 17, 2021	SELL	$22.0 - $35.01 $939,180 - $1.49 Million	-42,690 Reduced 2.0%	2,093,425 $58.3 Million
Q4 2020 Feb 16, 2021	BUY	$20.81 - $30.55 $744,893 - $1.09 Million	35,795 Added 1.7%	2,136,115 $53.5 Million
Q3 2020 Nov 16, 2020	BUY	$17.5 - $30.23 $36.8 Million - $63.5 Million	2,100,320 New	2,100,320 $63.5 Million

Others Institutions Holding ANNX

# of Institutions

152

Shares Held

101M

Call Options Held

88.6K

Put Options Held

32.5K

View Full List

About Annexon, Inc.

Ticker ANNX
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 47,617,700
Market Cap $136M
Description
Annexon, Inc., a clinical-stage biopharmaceutical company, discovers and develops therapeutics for autoimmune, neurodegenerative, and ophthalmic disorders. The company's C1q is an initiating molecule of the classical complement pathway that targets distinct disease processes, such as antibody-mediated autoimmune disease and complement-mediated n...

More about ANNX

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