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Livermore
Livermore
ZHEN

Whitebox Advisors LLC

SEC CIK
0001257391
Latest filing
Aug 14, 2026

The latest 13F from Whitebox Advisors LLC covers Q2 2026 (filed Aug 14, 2026): 643 long positions worth $6.19B. The top 10 holdings make up 35.5% of the portfolio, and the largest is EchoStar CORP at 5.2%. Livermore has 37 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
176
Est. +$1.92B
Added
22
Est. +$182.3M
Reduced
31
Est. −$255.3M
Sold out
83
Est. −$1.89B

Top 5 holdings

Share of this quarter's portfolio value

  1. EchoStar CORP278768AB2
    5.2%$319.1M
  2. Sphere Entertainment Co.55826TAB8
    4.8%$299.4M
  3. Snowflake Inc.833445AD1
    4.1%$256.9M
  4. Alibaba Group Hldg Ltd01609WBG6
    3.7%$226.9M
  5. Super Micro Computer, Inc.86800UAF1
    3.4%$213.2M

Biggest buys

New and added positions, by estimated amount bought

  1. Super Micro Computer, Inc.86800UAF1
    +$213.2MNew
  2. GameStop Corp.36467WAE9
    +$198.0MNew
  3. GameStop Corp.36467WAG4
    +$176.3MNew
  4. Cloudflare, Inc.18915MAF4
    +$149.6MNew
  5. TECHBIO-TECHNE Corp
    +$148.4MNewHistory

Largest weight increases

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

  1. Super Micro Computer, Inc.86800UAF1
    +3.44 pp0.0% → 3.4%
  2. GameStop Corp.36467WAE9
    +3.20 pp0.0% → 3.2%
  3. GameStop Corp.36467WAG4
    +2.85 pp0.0% → 2.8%
  4. Cloudflare, Inc.18915MAF4
    +2.42 pp0.0% → 2.4%
  5. TECHBIO-TECHNE Corp
    +2.40 pp0.0% → 2.4%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. Western Digital Corp958102AT2
    −$1.46BSold out
  2. GTLSChart Industries Inc
    −$137.7MReducedHistory
  3. TERNTerns Pharmaceuticals, Inc.
    −$52.7MSold outHistory
  4. MASIMasimo Corp
    −$48.0MSold outHistory
  5. LBRDKLiberty Broadband Corp
    −$42.3MReducedHistory

Largest weight decreases

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

  1. Western Digital Corp958102AT2
    −20.71 pp20.7% → 0.0%
  2. GTLSChart Industries Inc
    −1.88 pp2.2% → 0.3%History
  3. LBRDKLiberty Broadband Corp
    −0.94 pp1.1% → 0.1%History
  4. TERNTerns Pharmaceuticals, Inc.
    −0.75 pp0.7% → 0.0%History
  5. MASIMasimo Corp
    −0.68 pp0.7% → 0.0%History

Metrics

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

Portfolio value
$6.19B
−$871.2M (−12.3%) vs. prior quarter
Positions
643
+93 vs. prior quarter
Top 10 concentration
35.5%
Top 10 as share of value
Turnover
31.7%
Q2 2026, one quarter
Average holding period
4.0 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 $7.07B (Q1 2026)

Q1 2021: $2.71BQ2 2021: $4.19BQ3 2021: $4.20BQ4 2021: $4.29BQ1 2022: $4.18BQ2 2022: $3.01BQ3 2022: $3.60BQ4 2022: $2.68BQ1 2023: $2.08BQ2 2023: $2.07BQ3 2023: $2.03BQ4 2023: $2.25BQ1 2024: $2.63BQ2 2024: $2.48BQ3 2024: $2.31BQ4 2024: $2.72BQ1 2025: $3.04BQ2 2025: $3.67BQ3 2025: $5.38BQ4 2025: $6.00BQ1 2026: $7.07BQ2 2026: $6.19B
Q1 2021Q2 2026
13F filings of Whitebox Advisors LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 14, 2026643$6.19BEchoStar CORPSphere Entertainment Co.Snowflake Inc.vs. Q1 2026SEC
Q1 2026Aug 26, 2026Amended550$7.07BWestern Digital CorpLumentum Hldgs IncEchoStar CORPvs. Q4 2025SECSEC
Q4 2025Aug 26, 2026Amended466$6.00BWestern Digital CorpLumentum Hldgs IncAlibaba Group Hldg Ltdvs. Q3 2025SECSEC
Q3 2025Aug 26, 2026Amended392$5.38BWestern Digital CorpBloom Energy CorpBloom Energy Corpvs. Q2 2025SECSEC
Q2 2025Aug 26, 2026Amended355$3.67BWestern Digital CorpStrategy IncSuper Micro Computer, Inc.vs. Q1 2025SECSEC
Q1 2025Aug 26, 2026Amended288$3.04BSuper Micro Computer, Inc.Western Digital CorpBERYvs. Q4 2024SECSEC
Q4 2024Aug 26, 2026Amended253$2.72BMicroStrategy IncWestern Digital CorpINSMED Incvs. Q3 2024SECSEC
Q3 2024Aug 26, 2026Amended289$2.31BLBRDKINSMED IncMicroStrategy Incvs. Q2 2024SECSEC
Q2 2024Aug 26, 2026Amended318$2.48BRoyal Caribbean GroupLBRDKFreshpet, Inc.vs. Q1 2024SECSEC
Q1 2024Aug 26, 2026Amended311$2.63BMicroStrategy IncRoyal Caribbean GroupMicroStrategy Incvs. Q4 2023SECSEC
Q4 2023Aug 26, 2026Amended302$2.25BRoyal Caribbean GroupLBRDKAmerican Airls Group Incvs. Q3 2023SECSEC
Q3 2023Nov 14, 2023358$2.03BLBRDKRoyal Caribbean GroupTransocean Ltd.vs. Q2 2023SEC
Q2 2023Aug 26, 2026Amended416$2.07BAmerican Airls Group IncLBRDKZillow Group, Inc.vs. Q1 2023SECSEC
Q1 2023May 15, 2023541$2.08BAmerican Airls Group IncZillow Group, Inc.Copa Holdings SAvs. Q4 2022SEC
Q4 2022Aug 26, 2026Amended743$2.68BPalo Alto Networks IncPalo Alto Networks IncCopa Holdings SAvs. Q3 2022SECSEC
Q3 2022Aug 26, 2026Amended948$3.60BPalo Alto Networks IncSPYPalo Alto Networks Incvs. Q2 2022SECSEC
Q2 2022Aug 15, 2022898$3.01BPalo Alto Networks IncMongoDB, Inc.Palo Alto Networks Incvs. Q1 2022SEC
Q1 2022Aug 26, 2026Amended935$4.18BPalo Alto Networks IncMongoDB, Inc.Square Incvs. Q4 2021SECSEC
Q4 2021Aug 26, 2026Amended796$4.29BMongoDB, Inc.Square IncCree Incvs. Q3 2021SECSEC
Q3 2021Nov 15, 2021433$4.20BSquare IncRHAmerican Airls Group Incvs. Q2 2021SEC
Q2 2021Aug 16, 2021376$4.19BSquare IncSea LtdRHvs. Q1 2021SEC
Q1 2021May 14, 2021372$2.71BSquare IncAmerican Airls Group IncSea Ltd–SEC

13D and 13G filings

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

Current stakes of 5% or more

8 companies, largest stake first.

Companies where Whitebox Advisors LLC owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
HOSHornbeck Offshore Services, Inc.13G15.00%37.9M sharesNewSep 9, 20261 filingSep 9, 2026SEC
ELBMElectra Battery Materials Corp13G/A9.90%10.8M shares0.00 ppfrom 9.90%Feb 14, 202311 filingsAug 14, 2026SEC
MAXNQMaxeon Solar Technologies, Ltd.13G8.50%1.59M shares–Jul 12, 20242 filingsJun 26, 2026SEC
OPIOffice Properties Income Trust13G8.20%1.80M sharesNewJul 6, 20261 filingJul 6, 2026SEC
PONOPono Capital Four, Inc.13G5.70%700.0K sharesNewMar 23, 20261 filingMar 23, 2026SEC
CPPTLCopper Property CTL Pass Through Trust13G5.50%4.11M sharesNewJul 10, 20261 filingJul 10, 2026SEC
MERCMercer International Inc.13G5.40%3.59M sharesNewAug 14, 20261 filingAug 14, 2026SEC
MYXMaywood Acquisition Corp. 213G5.20%550.0K sharesNewApr 22, 20261 filingApr 22, 2026SEC

Latest filings

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

Schedule 13D and 13G filings by Whitebox Advisors LLC
CompanyFiled (ET)FormStakeChangeEvent dateFiling
HOSHornbeck Offshore Services, Inc.Sep 9, 20264:56 PM ET13G15.00%37.9M sharesNewSep 1, 2026SEC
ELBMElectra Battery Materials CorpAug 14, 20264:10 PM ET13G/A9.90%10.8M shares0.00 ppfrom 9.90%Jun 30, 2026SEC
UPWheels Up Experience Inc.Aug 14, 20264:10 PM ET13G/A2.80%1.02M shares–Below 5%Jun 30, 2026SEC
MERCMercer International Inc.Aug 14, 20264:10 PM ET13G5.40%3.59M sharesNewAug 7, 2026SEC
CPPTLCopper Property CTL Pass Through TrustJul 10, 20264:46 PM ET13G5.50%4.11M sharesNewApr 15, 2026SEC
OPIOffice Properties Income TrustJul 6, 20262:02 PM ET13G8.20%1.80M sharesNewJun 17, 2026SEC
MAXNQMaxeon Solar Technologies, Ltd.Jun 26, 20266:55 PM ET13G8.50%1.59M shares–Jun 15, 2026SEC
ELBMElectra Battery Materials CorpMay 15, 20264:26 PM ET13G/A9.90%10.5M shares0.00 ppfrom 9.90%Mar 31, 2026SEC
MYXMaywood Acquisition Corp. 2Apr 22, 20265:57 PM ET13G5.20%550.0K sharesNewApr 15, 2026SEC
PONOPono Capital Four, Inc.Mar 23, 20264:16 PM ET13G5.70%700.0K sharesNewMar 16, 2026SEC
UPWheels Up Experience Inc.Nov 14, 20254:49 PM ET13G/A3.90%28.4M shares–Below 5%Sep 30, 2025SEC
ELBMElectra Battery Materials CorpOct 24, 202510:36 AM ET13G9.90%9.27M shares0.00 ppfrom 9.90%Oct 22, 2025SEC
ELBMElectra Battery Materials CorpOct 24, 202510:35 AM ET13D/A9.90%9.27M shares0.00 ppfrom 9.90%Oct 22, 2025SEC
ELBMElectra Battery Materials CorpSep 18, 20254:13 PM ET13D/A9.90%1.94M shares0.00 ppfrom 9.90%Sep 17, 2025SEC
ELBMElectra Battery Materials CorpAug 25, 20257:30 AM ET13D/A9.90%1.94M shares0.00 ppfrom 9.90%Aug 21, 2025SEC
ELBMElectra Battery Materials CorpJul 24, 20258:50 PM ET13D9.90%1.94M shares0.00 ppfrom 9.90%Jul 21, 2025SEC
REEDReed's, Inc.Feb 14, 20254:48 PM ET13G/A0.80%257.7K shares–Below 5%Dec 31, 2024SEC
CHARCharlton Aria Acquisition CorpFeb 14, 20254:47 PM ET13G/A4.50%399.0K shares–Below 5%Dec 31, 2024SEC
ELBMElectra Battery Materials CorpFeb 14, 20254:47 PM ET13G/A9.90%1.58M shares–Dec 31, 2024SEC
VTNRVertex Energy Inc.Jan 22, 20256:06 PM ET13D/A0.00%0 shares–Below 5%Jan 21, 2025SEC