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Livermore
Livermore
ZHEN

Lansing Management LP

SEC CIK
0001691908
Latest filing
Jul 31, 2026

The latest 13F from Lansing Management LP covers Q2 2026 (filed Jul 31, 2026): 13 long positions worth $165.2M. The top 10 holdings make up 88.6% of the portfolio, and the largest is Interactive Brokers Group, Inc. (IBKR) at 12.9%. Livermore has 23 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
0
Added
7
Est. +$7.25M
Reduced
6
Est. −$8.33M
Sold out
1
Est. −$1.53M

Top 5 holdings

Share of this quarter's portfolio value

  1. IBKRInteractive Brokers Group, Inc.
    12.9%$21.4MHistory
  2. HEI.AHeico Corp
    12.5%$20.7MHistory
  3. APGAPi Group Corp
    10.0%$16.6MHistory
  4. RACEFerrari N.V.
    9.1%$15.0MHistory
  5. SUNBSunbelt Rentals Holdings, Inc.
    8.9%$14.7MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. ODFLOld Dominion Freight Line, Inc.
    +$3.47MAddedHistory
  2. WCNWaste Connections, Inc.
    +$3.33MAddedHistory
  3. MCOMoodys Corp
    +$140.4KAddedHistory
  4. HLTHilton Worldwide Holdings Inc.
    +$115.7KAddedHistory
  5. HEI.AHeico Corp
    +$95.4KAddedHistory

Largest weight increases

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

  1. ODFLOld Dominion Freight Line, Inc.
    +2.11 pp1.0% → 3.1%History
  2. COMPCompass, Inc.
    +1.83 pp3.4% → 5.2%History
  3. WCNWaste Connections, Inc.
    +1.73 pp4.3% → 6.1%History
  4. HEI.AHeico Corp
    +1.33 pp11.2% → 12.5%History
  5. SUNBSunbelt Rentals Holdings, Inc.
    +0.44 pp8.5% → 8.9%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. IBKRInteractive Brokers Group, Inc.
    −$3.87MReducedHistory
  2. APGAPi Group Corp
    −$1.61MReducedHistory
  3. JBHTHunt J B Transport Services Inc
    −$1.53MSold outHistory
  4. TRUTransUnion
    −$1.40MReducedHistory
  5. RACEFerrari N.V.
    −$636.6KReducedHistory

Largest weight decreases

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

  1. BGSIBoyd Group Services Inc.
    −2.30 pp6.7% → 4.4%History
  2. APGAPi Group Corp
    −1.53 pp11.6% → 10.0%History
  3. TRUTransUnion
    −1.32 pp9.6% → 8.2%History
  4. JBHTHunt J B Transport Services Inc
    −1.01 pp1.0% → 0.0%History
  5. CLHClean Harbors Inc
    −0.60 pp4.5% → 3.9%History

Metrics

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

Portfolio value
$165.2M
+$14.6M (+9.7%) vs. prior quarter
Positions
13
−1 vs. prior quarter
Top 10 concentration
88.6%
Top 10 as share of value
Turnover
4.6%
Q2 2026, one quarter
Average holding period
9.3 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 $170.4M (Q3 2021)

Q1 2021: $142.6MQ2 2021: $164.9MQ3 2021: $170.4MQ4 2021: $165.8MQ1 2022: $137.3MQ2 2022: $97.8MQ3 2022: $80.5MQ4 2022: $86.0MQ1 2023: $94.9MQ2 2023: $99.9MQ3 2023: $87.5MQ4 2023: $93.5MQ1 2024: $102.9MQ2 2024: $101.0MQ3 2024: $139.7MQ4 2024: $113.5MQ1 2025: $119.1MQ2 2025: $145.9MQ3 2025: $137.8MQ4 2025: $150.5MQ1 2026: $150.6MQ2 2026: $165.2M
Q1 2021Q2 2026
13F filings of Lansing Management LP by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 31, 202613$165.2MIBKRHEI.AAPGvs. Q1 2026SEC
Q1 2026May 15, 202614$150.6MIBKRAPGHEI.Avs. Q4 2025SEC
Q4 2025Feb 17, 202613$150.5MAPGHEI.AIBKRvs. Q3 2025SEC
Q3 2025Nov 14, 20259$137.8MRACEIBKRHEI.Avs. Q2 2025SEC
Q2 2025Aug 14, 20258$145.9MRACEAPGIBKRvs. Q1 2025SEC
Q1 2025May 15, 20258$119.1MRACEHEI.AROPvs. Q4 2024SEC
Q4 2024Feb 14, 20257$113.5MRACEIBKRAPGvs. Q3 2024SEC
Q3 2024Nov 14, 20247$139.7MRACEIBKRROPvs. Q2 2024SEC
Q2 2024Aug 14, 20245$101.0MRACEROPAPGvs. Q1 2024SEC
Q1 2024May 15, 20246$102.9MRACEROPTRUvs. Q4 2023SEC
Q4 2023Feb 14, 20247$93.5MRACEROPTRUvs. Q3 2023SEC
Q3 2023Nov 14, 20236$87.5MRACEROPTRUvs. Q2 2023SEC
Q2 2023Aug 14, 20236$99.9MRACEROPTRUvs. Q1 2023SEC
Q1 2023May 15, 20237$94.9MRACEROPTRUvs. Q4 2022SEC
Q4 2022Feb 14, 20238$86.0MRACEROPTRUvs. Q3 2022SEC
Q3 2022Nov 14, 20228$80.5MRACEROPTRUvs. Q2 2022SEC
Q2 2022Aug 15, 20228$97.8MRACEROPTRUvs. Q1 2022SEC
Q1 2022May 16, 20228$137.3MRACETRUROPvs. Q4 2021SEC
Q4 2021Feb 15, 2022Amended8$165.8MCVNARACETRUvs. Q3 2021SEC
Q3 2021Nov 15, 20218$170.4MCVNARACETRUvs. Q2 2021SEC
Q2 2021Aug 16, 20217$164.9MCVNAXPOTRUvs. Q1 2021SEC
Q1 2021May 17, 20216$142.6MCVNARACEXPO–SEC