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Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

The latest 13F from Citadel Advisors LLC covers Q2 2026 (filed Sep 1, 2026): 6,351 long positions worth $174.1B. The top 10 holdings make up 15.7% of the portfolio, and the largest is iShares Core S&P 500 ETF at 7.6%. Livermore has 26 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
1676
Est. +$7.32B
Added
2449
Est. +$63.2B
Reduced
2175
Est. −$52.1B
Sold out
1331
Est. −$7.22B

Top 5 holdings

Share of this quarter's portfolio value

  1. iShares Core S&P 500 ETF464287200
    7.6%$13.2B
  2. AMZNAmazon Com Inc
    1.5%$2.59BHistory
  3. NVDANVIDIA Corp
    1.4%$2.36BHistory
  4. AAPLApple Inc.
    1.2%$2.11BHistory
  5. MSFTMicrosoft Corp
    0.8%$1.41BHistory

Share of portfolio

Top 5 holdings and the other 6,346 positions, by share of portfolio value

  1. iShares Core S&P 500 ETF7.6%
  2. AMZN1.5%
  3. NVDA1.4%
  4. AAPL1.2%
  5. MSFT0.8%
  6. Other 6,346 positions87.5%

Biggest buys

New and added positions, by estimated amount bought

  1. iShares Core S&P 500 ETF464287200
    +$10.2BAdded
  2. SPCXSpace Exploration Technologies Corp
    +$876.5MNewHistory
  3. LLYEli Lilly & Co
    +$844.1MAddedHistory
  4. ABBVAbbVie Inc.
    +$674.3MAddedHistory
  5. AMZNAmazon Com Inc
    +$662.5MAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. iShares Core S&P 500 ETF464287200
    +5.72 pp1.9% → 7.6%
  2. SPCXSpace Exploration Technologies Corp
    +0.50 pp0.0% → 0.5%History
  3. LLYEli Lilly & Co
    +0.49 pp0.2% → 0.7%History
  4. AMDAdvanced Micro Devices Inc
    +0.44 pp0.1% → 0.5%History
  5. KLACKLA Corp
    +0.40 pp<0.1% → 0.4%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. MUMicron Technology Inc
    −$4.61BReducedHistory
  2. TSMTaiwan Semiconductor Manufacturing Co Ltd
    −$1.68BReducedHistory
  3. DIASPDR Dow Jones Industrial Average ETF Trust
    −$1.61BReducedHistory
  4. NVDANVIDIA Corp
    −$1.37BReducedHistory
  5. SNDKSandisk Corp
    −$1.23BReducedHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. DIASPDR Dow Jones Industrial Average ETF Trust
    −1.02 pp1.1% → 0.1%History
  2. NVDANVIDIA Corp
    −0.95 pp2.3% → 1.4%History
  3. TSMTaiwan Semiconductor Manufacturing Co Ltd
    −0.82 pp1.0% → 0.1%History
  4. MUMicron Technology Inc
    −0.70 pp1.1% → 0.4%History
  5. Western Digital Corp958102AT2
    −0.49 pp0.5% → 0.0%

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$174.1B
+$33.0B (+23.4%) vs. prior quarter
Positions
6,351
+345 vs. prior quarter
Top 10 concentration
15.7%
Top 10 as share of value
Turnover
37.6%
Q2 2026, one quarter
Average holding period
14.4 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $174.1B (Q2 2026)

Q1 2021: $95.1BQ2 2021: $96.5BQ3 2021: $90.3BQ4 2021: $93.2BQ1 2022: $86.9BQ2 2022: $73.5BQ3 2022: $80.3BQ4 2022: $86.5BQ1 2023: $91.5BQ2 2023: $89.7BQ3 2023: $92.5BQ4 2023: $99.3BQ1 2024: $103.8BQ2 2024: $101.6BQ3 2024: $95.8BQ4 2024: $108.2BQ1 2025: $102.2BQ2 2025: $115.3BQ3 2025: $124.8BQ4 2025: $147.0BQ1 2026: $141.1BQ2 2026: $174.1B
Q1 2021Q2 2026
13F filings of Citadel Advisors LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Sep 1, 2026Amended6,351$174.1BiShares Core S&P 500 ETFAMZNNVDAvs. Q1 2026SEC
Q1 2026May 15, 20266,006$141.1BNVDAiShares Core S&P 500 ETFAMZNvs. Q4 2025SEC
Q4 2025Feb 17, 20265,870$147.0BNVDAAMZNDIAvs. Q3 2025SEC
Q3 2025Nov 14, 20255,878$124.8BMSFTNVDAMETAvs. Q2 2025SEC
Q2 2025Aug 14, 20255,750$115.3BNVDAHESAMZNvs. Q1 2025SEC
Q1 2025May 15, 20255,860$102.2BSCHWHESInvesco QQQ Trust Series Ivs. Q4 2024SEC
Q4 2024Feb 14, 20255,904$108.2BHESSPYBAvs. Q3 2024SEC
Q3 2024Nov 14, 20245,708$95.8BSPYHESNVDAvs. Q2 2024SEC
Q2 2024Aug 14, 20245,817$101.6BSPYInvesco QQQ Trust Series IAMZNvs. Q1 2024SEC
Q1 2024May 15, 20246,043$103.8BSPYPXDHESvs. Q4 2023SEC
Q4 2023Feb 14, 20245,819$99.3BSPYNVDAMSFTvs. Q3 2023SEC
Q3 2023Nov 14, 20235,815$92.5BMSFTATVIBSXvs. Q2 2023SEC
Q2 2023Aug 14, 20235,734$89.7BMSFTInvesco QQQ Trust Series ITMUSvs. Q1 2023SEC
Q1 2023May 15, 20235,856$91.5BMETANVDABSXvs. Q4 2022SEC
Q4 2022Feb 14, 20236,010$86.5BMETATSLAAAPLvs. Q3 2022SEC
Q3 2022Nov 14, 20225,800$80.3BAMZNTSLAAAPLvs. Q2 2022SEC
Q2 2022Aug 15, 20225,934$73.5BMETAHUMAMZNvs. Q1 2022SEC
Q1 2022May 16, 20226,259$86.9BSPYPlug Power IncTvs. Q4 2021SEC
Q4 2021Feb 14, 20226,375$93.2BTAMZNMETAvs. Q3 2021SEC
Q3 2021Mar 11, 2022Amended6,320$90.3BTSLATBABAvs. Q2 2021SECSEC
Q2 2021Aug 16, 20216,345$96.5BMETATAMZNvs. Q1 2021SEC
Q1 2021May 21, 2021Amended6,213$95.1BMETAAMZNSea Ltd–SECSEC

13D and 13G filings

Companies where Citadel Advisors LLC reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

20 companies, largest stake first.

Companies where Citadel Advisors LLC owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
BCTXBriaCell Therapeutics Corp.13G9.99%717.2K sharesNewJan 23, 20261 filingJan 23, 2026SEC
DUKRDUKE Robotics Corp.13G9.99%353.4K sharesNewMay 26, 20261 filingMay 26, 2026SEC
FLYYSpirit Aviation Holdings, Inc.13G9.90%1.62M sharesNewMay 6, 20251 filingMay 6, 2025SEC
XCHXCHG Ltd13G9.70%272.7M sharesNewAug 14, 20261 filingAug 14, 2026SEC
ASSTStrive, Inc.13G8.10%1.27M sharesNewAug 25, 20251 filingAug 25, 2025SEC
DYNCDynamix Corp13G7.90%1.31M sharesNewApr 14, 20261 filingApr 14, 2026SEC
ASSTStrive, Inc.13G/A7.60%5.58M shares+2.40 ppfrom 5.20%Nov 14, 20254 filingsAug 14, 2026SEC
LXEOLexeo Therapeutics, Inc.13G/A7.40%5.50M shares−2.20 ppfrom 9.60%Nov 17, 20234 filingsFeb 17, 2026SEC
NICMNicola Mining Inc.13G7.20%17.3M sharesNewApr 21, 20261 filingApr 21, 2026SEC
SRFMSurf Air Mobility Inc.13G7.10%6.91M sharesNewApr 28, 20261 filingApr 28, 2026SEC
HMHHMH Holding Inc13G6.30%665.9K sharesNewApr 9, 20261 filingApr 9, 2026SEC
NANano Labs Ltd13G/A6.20%1.36M shares−3.30 ppfrom 9.50%Jul 7, 20252 filingsNov 14, 2025SEC
GMRSGMR Solutions Inc.13G5.90%3.20M sharesNewMay 29, 20261 filingMay 29, 2026SEC
GLNDGreenland Energy Co13G/A5.80%2.71M shares−3.50 ppfrom 9.30%May 6, 20262 filingsAug 14, 2026SEC
LWAYLifeway Foods, Inc.13G5.80%884.8K sharesNewMay 27, 20261 filingMay 27, 2026SEC
AARDAardvark Therapeutics, Inc.13G5.60%1.19M sharesNewFeb 24, 20251 filingFeb 24, 2025SEC
VFFVillage Farms International, Inc.13G5.50%6.69M sharesNewAug 14, 20261 filingAug 14, 2026SEC
BRUNBoost Run Inc.13G5.50%1.74M sharesNewMay 21, 20261 filingMay 21, 2026SEC
IMSRTerrestrial Energy Inc.13G5.40%1.23M sharesNewSep 30, 20251 filingSep 30, 2025SEC
CWHCamping World Holdings, Inc.13G5.20%3.33M sharesNewMay 1, 20261 filingMay 1, 2026SEC

Latest filings

886 filings on file made by Citadel Advisors LLC or listing it as a reporting person; the latest 20 are shown.

Schedule 13D and 13G filings by Citadel Advisors LLC
CompanyFiled (ET)FilerFormStakeChangeEvent dateFiling
RHRHAug 14, 20264:15 PM ETCitadel Securities GP LLCand 6 others13G/A3.60%673.3K shares−1.40 ppfrom 5.00%Below 5%Jun 30, 2026SEC
MEDMedifast IncAug 14, 20264:15 PM ETCitadel Securities GP LLCand 6 others13G/A2.60%289.8K shares−3.90 ppfrom 6.50%Below 5%Jun 30, 2026SEC
HIVEHIVE Digital Technologies Ltd.Aug 14, 20264:14 PM ETCitadel Securities GP LLCand 6 others13G/A4.20%11.3M shares−1.00 ppfrom 5.20%Below 5%Jun 30, 2026SEC
DOMOHuckleberry.ai, Inc.Aug 14, 20264:14 PM ETCitadel Securities GP LLCand 6 others13G5.70%2.38M sharesNewJun 30, 2026SEC
VENUVenu Holding CorpAug 14, 20264:13 PM ETCitadel Advisors LLCand 6 others13G/A3.80%2.37M shares−2.60 ppfrom 6.40%Below 5%Jun 30, 2026SEC
SPRBSpruce Biosciences, Inc.Aug 14, 20264:12 PM ETCitadel Advisors LLCand 6 others13G/A1.90%51.9K shares−3.20 ppfrom 5.10%Below 5%Jun 30, 2026SEC
MNTSMomentus Inc.Aug 14, 20264:12 PM ETCitadel Advisors LLCand 6 others13G/A1.60%309.9K shares−8.39 ppfrom 9.99%Below 5%Jun 30, 2026SEC
XCHXCHG LtdAug 14, 20264:11 PM ETCitadel Advisors LLCand 6 others13G9.70%272.7M sharesNewJun 30, 2026SEC
VFFVillage Farms International, Inc.Aug 14, 20264:11 PM ETCitadel Advisors LLCand 6 others13G5.50%6.69M sharesNewJun 30, 2026SEC
SPAISafe Pro Group Inc.Aug 14, 20264:10 PM ETCitadel Advisors LLCand 6 others13G/A3.60%768.9K shares−1.90 ppfrom 5.50%Below 5%Jun 30, 2026SEC
PLRXPliant Therapeutics, Inc.Aug 14, 20264:05 PM ETCitadel Advisors LLCand 6 others13G/A3.50%2.14M shares−1.50 ppfrom 5.00%Below 5%Jun 30, 2026SEC
GLNDGreenland Energy CoAug 14, 20264:05 PM ETCitadel Advisors LLCand 6 others13G/A5.80%2.71M shares−3.50 ppfrom 9.30%Jun 30, 2026SEC
ASSTStrive, Inc.Aug 14, 20264:04 PM ETCitadel Advisors LLCand 6 others13G/A7.60%5.58M shares+2.40 ppfrom 5.20%Jun 30, 2026SEC
FGNXFG Nexus Inc.Aug 14, 20264:04 PM ETCitadel Advisors LLCand 6 others13G/A4.20%241.0K shares−2.40 ppfrom 6.60%Below 5%Jun 30, 2026SEC
DPRODraganfly Inc.Aug 14, 20264:03 PM ETCitadel Advisors LLCand 6 others13G/A1.00%359.1K shares−4.30 ppfrom 5.30%Below 5%Jun 30, 2026SEC
DGXXDigi Power X Inc.Aug 14, 20264:03 PM ETCitadel Advisors LLCand 6 others13G/A2.30%2.11M shares−2.60 ppfrom 4.90%Below 5%Jun 30, 2026SEC
CRBPCorbus Pharmaceuticals Holdings, Inc.Aug 14, 20264:02 PM ETCitadel Advisors LLCand 6 others13G/A1.10%206.4K shares−4.20 ppfrom 5.30%Below 5%Jun 30, 2026SEC
BOLDBoundless Bio, Inc.Aug 14, 20264:01 PM ETCitadel Advisors LLCand 6 others13G/A0.60%145.1K shares−5.80 ppfrom 6.40%Below 5%Jun 30, 2026SEC
CORZCore Scientific, Inc.Aug 5, 20264:40 PM ETCitadel Securities GP LLCand 6 others13G6.50%20.9M shares+2.40 ppfrom 4.10%Jul 29, 2026SEC
FCELFuelcell Energy IncAug 4, 20265:11 PM ETCitadel Securities GP LLCand 6 others13G3.80%3.02M sharesNewBelow 5%Jul 28, 2026SEC