Ken Griffin Options Holdings

Citadel Advisors LLC

  • $509 Billion
  • Q1 2025

Options Holdings Table

Stock Option Type Value Options Held Last Trade Trade History
MESA
Mesa Air Group Inc

Industrials
PUT
$6,000
8.5K
Q1 2025
New holding
MSB
Mesabi Trust

Basic Materials
CALL
$62,000
2.3K
Q1 2025
Added 10100.0%
MSB
Mesabi Trust

Basic Materials
PUT
$277,000
10.2K
Q1 2025
Added 10100.0%
Mesoblast LTD
CALL
$0
151K
Q1 2025
Reduced 29.1%
Mesoblast LTD
PUT
$0
82.7K
Q1 2025
Reduced 29.1%
MTA
Metalla Royalty & Streaming Ltd.

Basic Materials
CALL
$27,000
9.5K
Q1 2025
Added 20.51%
MTA
Metalla Royalty & Streaming Ltd.

Basic Materials
PUT
$67,000
23.5K
Q1 2025
Added 20.51%
TMST
Timken Steel Corp

Basic Materials
CALL
$184,000
8.6K
Q1 2025
Added 766.67%
TMST
Timken Steel Corp

Basic Materials
PUT
$55,000
2.6K
Q1 2025
Added 766.67%
MEOH
Methanex Corp

Basic Materials
CALL
$515,000
14.7K
Q1 2025
Added 26.07%
MEI
Methode Electronics Inc

Technology
CALL
$451,000
70.8K
Q1 2025
Added 111.22%
MEI
Methode Electronics Inc

Technology
PUT
$132,000
20.7K
Q1 2025
Added 111.22%
MCBS
Metro City Bankshares, Inc.

Financial Services
CALL
$13,000
500
Q1 2025
Reduced 70.97%
MCBS
Metro City Bankshares, Inc.

Financial Services
PUT
$24,000
900
Q1 2025
Reduced 70.97%
MCB
Metropolitan Bank Holding Corp.

Financial Services
CALL
$240,000
4.3K
Q1 2025
Reduced 50.0%
MCB
Metropolitan Bank Holding Corp.

Financial Services
PUT
$442,000
7.9K
Q1 2025
Reduced 50.0%
MTD
Mettler Toledo International Inc

Healthcare
PUT
$3.42 Million
2.9K
Q1 2025
Added 3.57%
MFA
Mfa Financial, Inc.

Real Estate
CALL
$699,000
68.2K
Q1 2025
Reduced 77.35%
MFA
Mfa Financial, Inc.

Real Estate
PUT
$481,000
46.9K
Q1 2025
Reduced 77.35%
MTG
Mgic Investment Corp

Financial Services
CALL
$252,000
10.2K
Q1 2025
Reduced 21.23%
MTG
Mgic Investment Corp

Financial Services
PUT
$413,000
16.7K
Q1 2025
Reduced 21.23%
MGPI
Mgp Ingredients Inc

Consumer Defensive
CALL
$2.58 Million
87.9K
Q1 2025
Added 241.97%
MGPI
Mgp Ingredients Inc

Consumer Defensive
PUT
$1.94 Million
66K
Q1 2025
Added 241.97%
Microbot Med Inc
CALL
$0
47.3K
Q1 2025
New holding
Microbot Med Inc
PUT
$0
6.6K
Q1 2025
New holding
Microcloud Hologram Inc
CALL
$0
11.6K
Q1 2025
New holding
Microcloud Hologram Inc
PUT
$0
31.9K
Q1 2025
New holding
MVST
Microvast Holdings, Inc.

Industrials
CALL
$781,000
668K
Q1 2025
Added 15.56%
MVST
Microvast Holdings, Inc.

Industrials
PUT
$569,000
486K
Q1 2025
Added 15.56%
MVIS
Microvision, Inc.

Technology
CALL
$406,000
388K
Q1 2025
Added 353.88%
MVIS
Microvision, Inc.

Technology
PUT
$344,000
328K
Q1 2025
Added 353.88%
MAA
Mid America Apartment Communities Inc.

Real Estate
CALL
$10.7 Million
63.8K
Q1 2025
Added 2.39%
MAA
Mid America Apartment Communities Inc.

Real Estate
PUT
$5.03 Million
30K
Q1 2025
Added 2.39%
AINV
Apollo Investment Corp

Financial Services
CALL
$716,000
64.4K
Q1 2025
Added 54.17%
AINV
Apollo Investment Corp

Financial Services
PUT
$82,000
7.4K
Q1 2025
Added 54.17%
MIDD
Middleby Corp

Industrials
CALL
$17.4 Million
115K
Q1 2025
Reduced 5.34%
MIDD
Middleby Corp

Industrials
PUT
$10.8 Million
70.9K
Q1 2025
Reduced 5.34%
MSEX
Middlesex Water CO

Utilities
CALL
$749,000
11.7K
Q1 2025
Added 30.0%
MSEX
Middlesex Water CO

Utilities
PUT
$83,000
1.3K
Q1 2025
Added 30.0%
MSBI
Midland States Bancorp, Inc.

Financial Services
CALL
$27,000
1.6K
Q1 2025
Added 65.0%
MSBI
Midland States Bancorp, Inc.

Financial Services
PUT
$56,000
3.3K
Q1 2025
Added 65.0%
MIST
Milestone Pharmaceuticals Inc.

Healthcare
CALL
$6,000
8.2K
Q1 2025
Added 75.23%
MIST
Milestone Pharmaceuticals Inc.

Healthcare
PUT
$30,000
38.2K
Q1 2025
Added 75.23%
MLSS
Milestone Scientific Inc.

Healthcare
CALL
$12,000
13.3K
Q1 2025
New holding
MLSS
Milestone Scientific Inc.

Healthcare
PUT
$0
500
Q1 2025
New holding
MLKN
Millerknoll, Inc.

Consumer Cyclical
CALL
$1.58 Million
82.8K
Q1 2025
Added 57.59%
MLKN
Millerknoll, Inc.

Consumer Cyclical
PUT
$974,000
50.9K
Q1 2025
Added 57.59%
TIGO
Millicom International Cellular Sa

Communication Services
CALL
$93,000
3.1K
Q1 2025
Added 189.66%
TIGO
Millicom International Cellular Sa

Communication Services
PUT
$254,000
8.4K
Q1 2025
Added 189.66%
Ken Griffin

Ken Griffin

Ken Griffin is the founder and CEO of Citadel Advisors, a successful investment firm that uses technology and data-driven approaches to investing. Griffin is known for his expertise in quantitative investing and his innovative approach to investing. He has generated strong returns for his clients over the long term.
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Summary

  • Portfolio
  • No. of Stocks 17,161
  • Current Value $509 Billion
  • Prior Value $559 Billion
  • Filing
  • Period Q1 2025
  • Filing Date May 15, 2025
  • Form Type 13F-HR
  • Activity in Q1 2025
  • New Purchases 1,248 stocks
  • Additional Purchases 2,438 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 2,161 stocks
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