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Livermore
Livermore
ZHEN

HBK Investments L P

SEC CIK
0001011443
Latest filing
Sep 16, 2026

The latest 13F from HBK Investments L P covers Q2 2026 (filed Sep 16, 2026): 197 long positions worth $8.60B. The top 10 holdings make up 63.0% of the portfolio, and the largest is QXO Insulation, LLC (BLD) at 10.8%. Livermore has 66 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
69
Est. +$3.67B
Added
16
Est. +$842.3M
Reduced
26
Est. −$236.9M
Sold out
93
Est. −$3.68B

Top 5 holdings

Share of this quarter's portfolio value

  1. BLDQXO Insulation, LLC
    10.8%$930.6MHistory
  2. EAElectronic Arts Inc.
    7.6%$654.1MHistory
  3. PENPenumbra Inc
    6.7%$580.5MHistory
  4. NSCNorfolk Southern Corp
    6.4%$550.5MHistory
  5. KVUEKenvue Inc.
    6.2%$535.1MHistory

Share of portfolio

Top 5 holdings and the other 192 positions, by share of portfolio value

  1. BLD10.8%
  2. EA7.6%
  3. PEN6.7%
  4. NSC6.4%
  5. KVUE6.2%
  6. Other 192 positions62.2%

Biggest buys

New and added positions, by estimated amount bought

  1. BLDQXO Insulation, LLC
    +$930.6MNewHistory
  2. TECHBIO-TECHNE Corp
    +$482.2MNewHistory
  3. NUVLNuvalent, Inc.
    +$430.2MNewHistory
  4. APGEApogee Therapeutics, Inc.
    +$378.3MNewHistory
  5. GameStop Corp.36467WAG4
    +$257.8MNew

Largest weight increases

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

  1. BLDQXO Insulation, LLC
    +10.82 pp0.0% → 10.8%History
  2. TECHBIO-TECHNE Corp
    +5.61 pp0.0% → 5.6%History
  3. NUVLNuvalent, Inc.
    +5.00 pp0.0% → 5.0%History
  4. APGEApogee Therapeutics, Inc.
    +4.40 pp0.0% → 4.4%History
  5. GameStop Corp.36467WAG4
    +3.00 pp0.0% → 3.0%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. HOLXHologic Inc
    −$740.8MSold outHistory
  2. MASIMasimo Corp
    −$458.2MSold outHistory
  3. CTRACoterra Energy Inc.
    −$371.4MSold outHistory
  4. ALSumisho Air Lease Corp
    −$358.9MSold outHistory
  5. CWANClearwater Analytics Holdings, Inc.
    −$328.1MSold outHistory

Largest weight decreases

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

  1. HOLXHologic Inc
    −9.33 pp9.3% → 0.0%History
  2. MASIMasimo Corp
    −5.77 pp5.8% → 0.0%History
  3. CTRACoterra Energy Inc.
    −4.68 pp4.7% → 0.0%History
  4. ALSumisho Air Lease Corp
    −4.52 pp4.5% → 0.0%History
  5. CWANClearwater Analytics Holdings, Inc.
    −4.13 pp4.1% → 0.0%History

Metrics

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

Portfolio value
$8.60B
+$658.8M (+8.3%) vs. prior quarter
Positions
197
−24 vs. prior quarter
Top 10 concentration
63.0%
Top 10 as share of value
Turnover
47.4%
Q2 2026, one quarter
Average holding period
2.6 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 $10.4B (Q2 2021)

Q1 2021: $8.48BQ2 2021: $10.4BQ3 2021: $6.85BQ4 2021: $4.66BQ1 2022: $5.21BQ2 2022: $3.75BQ3 2022: $3.71BQ4 2022: $2.26BQ1 2023: $2.76BQ2 2023: $3.15BQ3 2023: $4.51BQ4 2023: $4.19BQ1 2024: $3.99BQ2 2024: $4.17BQ3 2024: $5.44BQ4 2024: $5.27BQ1 2025: $5.73BQ2 2025: $5.63BQ3 2025: $6.79BQ4 2025: $9.24BQ1 2026: $7.94BQ2 2026: $8.60B
Q1 2021Q2 2026
13F filings of HBK Investments L P by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Sep 16, 2026Amended197$8.60BBLDEAPENvs. Q1 2026SEC
Q1 2026May 15, 2026221$7.94BHOLXEAPENvs. Q4 2025SEC
Q4 2025Feb 17, 2026164$9.24BCyberark Software LtdEXASHOLXvs. Q3 2025SEC
Q3 2025Sep 16, 2026Amended153$6.79BCyberark Software LtdVRNAGTLSvs. Q2 2025SECSEC
Q2 2025Aug 14, 2026Amended127$5.63BHESKBPMCvs. Q1 2025SECSEC
Q1 2025May 15, 2026Amended109$5.73BHESKITCIvs. Q4 2024SECSEC
Q4 2024Feb 17, 2026Amended115$5.27BHESKSMARvs. Q3 2024SECSEC
Q3 2024Aug 14, 2026Amended102$5.44BHESMROKvs. Q2 2024SECSECSEC
Q2 2024Aug 13, 2025Amended96$4.17BHESWRKEDRvs. Q1 2024SECSEC
Q1 2024May 15, 2026Amended86$3.99BPXDHESWRKvs. Q4 2023SECSECSEC
Q4 2023Feb 17, 2026Amended78$4.19BHESPXDSPLKvs. Q3 2023SECSECSECSECSEC
Q3 2023Nov 14, 2025Amended104$4.51BATVIHZNPNATIvs. Q2 2023SECSECSECSEC
Q2 2023Aug 13, 2025Amended169$3.15BHZNPNATIUNVRvs. Q1 2023SECSECSEC
Q1 2023May 15, 2024Amended136$2.76BHZNPAQUAYamana Gold Incvs. Q4 2022SECSEC
Q4 2022Feb 14, 2024Amended14$2.26BHZNPSTORCOUPvs. Q3 2022SECSEC
Q3 2022May 15, 2024Amended241$3.71BBHVNZENAVLRvs. Q2 2022SECSECSECSECSEC
Q2 2022May 15, 2024Amended338$3.75BSailpoint Technologies Holdings, Inc.CCMPACCvs. Q1 2022SECSECSECSEC
Q1 2022May 15, 2024Amended499$5.21BCERNPLANMIMEvs. Q4 2021SECSECSECSEC
Q4 2021May 15, 2024Amended520$4.66BCONEAthene Holding Ltd.TSLAvs. Q3 2021SECSECSEC
Q3 2021May 15, 2024Amended359$6.85BINFONUANKSUvs. Q2 2021SECSECSECSEC
Q2 2021May 15, 2024Amended409$10.4BALXNINFOMXIMvs. Q1 2021SECSECSECSECSECSEC
Q1 2021May 15, 2024Amended436$8.48BALXNVarian Med Sys IncWORK–SECSECSEC

13D and 13G filings

Companies where HBK Investments L P reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

HBK Investments L P does not currently report owning 5% or more of any company.

Latest filings

6 filings on file made by HBK Investments L P or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by HBK Investments L P
CompanyFiled (ET)FormStakeChangeEvent dateFiling
BLDQXO Insulation, LLCAug 14, 20262:00 PM ET13G0.00%0 sharesNewBelow 5%Jun 30, 2026SEC
Abcam plcDec 8, 202313D/AOld format–––SEC
Abcam plcNov 20, 202313D/AOld format–––SEC
Abcam plcNov 20, 202313D/AOld format–––SEC
Abcam plcOct 16, 202313DOld format–New–SEC
ACRACRES Commercial Realty Corp.Feb 11, 202113G/AOld format–––SEC