Citadel Advisors LLC

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

573

Stocks Covered

314

Latest Filing

Mar 6, 2026

Filings

BOLT

Bolt Biotherapeutics, Inc.

SC 13G/A · Feb 14, 2024

6.2%

6 shares

SPRB

Spruce Biosciences, Inc.

SC 13G/A · Feb 14, 2024

0.2%

6 shares

IKNA

Ikena Oncology, Inc.

SC 13G/A · Feb 14, 2024

0.3%

6 shares

VERA

Vera Therapeutics, Inc.

SC 13G/A · Feb 14, 2024

0.0%

6 shares

MLTX

MoonLake Immunotherapeutics

SC 13G/A · Feb 14, 2024

3.3%

6 shares

ANTX

AN2 Therapeutics, Inc.

SC 13G/A · Feb 14, 2024

5.2%

6 shares

VTYX

Ventyx Biosciences, Inc.

SC 13G/A · Feb 14, 2024

5.9%

6 shares

VIGL

Vigil Neuroscience, Inc.

SC 13G/A · Feb 14, 2024

6.0%

6 shares

ZNTL

Zentalis Pharmaceuticals, Inc.

SC 13G/A · Feb 14, 2024

5.1%

6 shares

KRRO

Korro Bio, Inc.

SC 13G/A · Feb 14, 2024

6.6%

6 shares

IMRX

Immuneering Corp

SC 13G/A · Feb 14, 2024

7.0%

6 shares

LXEO

Lexeo Therapeutics, Inc.

SC 13G/A · Feb 14, 2024

7.8%

6 shares

DYN

Dyne Therapeutics, Inc.

SC 13G/A · Feb 14, 2024

5.0%

6 shares

PEGR

Project Energy Reimagined Acquisition Corp.

SC 13G/A · Feb 14, 2024

1.0%

6 shares

AURA

Aura Biosciences, Inc.

SC 13G/A · Feb 14, 2024

7.2%

6 shares

VYNE

VYNE Therapeutics Inc.

SC 13G/A · Feb 14, 2024

8.5%

6 shares

NSTB

Northern Star Investment Corp. II

SC 13G/A · Feb 14, 2024

0.0%

6 shares

APPN

Appian Corporation

SC 13G/A · Feb 14, 2024

2.9%

6 shares

ACRV

Acrivon Therapeutics, Inc.

SC 13G/A · Feb 14, 2024

7.4%

6 shares

HEAR

Turtle Beach Corp

SC 13G/A · Feb 14, 2024

0.3%

6 shares

TRML

Tourmaline Bio, Inc.

SC 13G/A · Feb 14, 2024

0.0%

6 shares

KVSA

KHOSLA VENTURES ACQUISITION CO.

SC 13G/A · Feb 14, 2024

0.0%

0 shares

FRBN

Forbion European Acquisition Corp.

SC 13G/A · Feb 14, 2024

0.0%

0 shares

ACRO

ACROPOLIS INFRASTRUCTURE ACQUISITION CORP.

SC 13G/A · Feb 14, 2024

0.0%

0 shares

APGB

APOLLO STRATEGIC GROWTH CAPITAL II

SC 13G/A · Feb 14, 2024

0.0%

0 shares

DBTX

DECIBEL THERAPEUTICS, INC.

SC 13G/A · Feb 14, 2024

0.0%

0 shares

ARTE

ARTEMIS STRATEGIC INVESTMENT CORP.

SC 13G/A · Feb 14, 2024

0.0%

0 shares

NTST

NETSTREIT Corp.

SC 13G · Jan 22, 2024

5.0%

6 shares

CMPS

COMPASS Pathways plc

SC 13G · Jan 2, 2024

4.9%

6 shares

ALUR

Allurion Technologies, Inc.

SC 13G · Dec 26, 2023

5.1%

6 shares

BLNK

Blink Charging Co.

SC 13G · Dec 15, 2023

0.4%

6 shares

HEAR

Turtle Beach Corporation

SC 13G · Nov 20, 2023

3.5%

6 shares

ZNTL

Zentalis Pharmaceuticals, Inc.

SC 13G · Nov 17, 2023

5.1%

6 shares

LXEO

Lexeo Therapeutics, Inc.

SC 13G · Nov 17, 2023

8.3%

6 shares

APPN

Appian Corporation

SC 13G · Nov 17, 2023

3.8%

6 shares

VYNE

VYNE Therapeutics Inc.

SC 13G · Nov 13, 2023

8.5%

6 shares

KRRO

Korro Bio, Inc.

SC 13G · Nov 13, 2023

6.8%

6 shares

HARP

Harpoon Therapeutics, Inc.

SC 13G · Nov 6, 2023

6.0%

6 shares

GRPN

Groupon, Inc.

SC 13G · Oct 26, 2023

2.9%

6 shares

VNTR

Venator Materials PLC

SC 13D · Oct 24, 2023

25.3%

8 shares

VTGN

Vistagen Therapeutics, Inc.

SC 13G · Oct 16, 2023

5.6%

6 shares

ALLK

Allakos Inc.

SC 13G · Oct 13, 2023

4.9%

6 shares

BROS

Dutch Bros Inc.

SC 13G · Oct 2, 2023

5.0%

6 shares

ACRS

Aclaris Therapeutics, Inc.

SC 13G · Sep 5, 2023

4.7%

6 shares

ARHS

Arhaus, Inc.

SC 13G · Aug 31, 2023

4.6%

6 shares

BNTC

Benitec Biopharma Inc.

SC 13G · Aug 21, 2023

6.9%

6 shares

EXFY

Expensify, Inc.

SC 13G · Aug 11, 2023

3.9%

6 shares

LGST

Semper Paratus Acquisition Corporation

SC 13G · Jul 27, 2023

5.9%

6 shares

JANX

Janux Therapeutics, Inc.

SC 13G · Jul 10, 2023

4.9%

6 shares

NKTR

Nektar Therapeutics

SC 13G · Jul 3, 2023

4.0%

6 shares