Lansing Management LP

Fundamental concentrated ★Highest signal CIK 1691908
League rank
#477
in Fundamental concentrated · #1624 overall
Long book
$150.6M
Q1 2026
Positions
14
Top-10 weight
90%
concentration
Last quarter
+14.9%
SPY +14.8%
Turnover
20%
of book per quarter

Strategy in plain words

auto-generated from filings

Lansing Management LP is a concentrated fundamental stock-picker, running a $150.6M US long book across 14 positions.

The portfolio is extremely concentrated — the top 10 positions are almost the whole book. Turnover is modest: positions are typically held for years. Current anchor positions: INTERACTIVE BROKERS GRO-CL A, API GROUP CORP, HEICO CORP-CLASS A, TRANSUNION, FERRARI NV.

Over the last 9 quarters its long book ran on average 1.6pp per quarter behind the S&P 500, beating the index in 4 of 9 quarters. We rate its filings highest-signal: new buys here are worth attention.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q1 2024
-4.4%
Q2 2024
+10.0%
Q3 2024
-2.1%
Q4 2024
+1.3%
Q1 2025
+17.9%
Q2 2025
+0.9%
Q3 2025
-4.2%
Q4 2025
-8.3%
Q1 2026
+14.9%

Sector allocation

Services media
52%
Industrials
23%
Financials
13%
Utilities
9%
Real estate
3%

Long book by quarter

$102.9M
Q1 2024
$101.0M
Q2 2024
$139.7M
Q3 2024
$113.5M
Q4 2024
$119.1M
Q1 2025
$145.9M
Q2 2025
$137.8M
Q3 2025
$150.5M
Q4 2025
$150.6M
Q1 2026

What does Lansing Management own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
IBKR INTERACTIVE BROKERS GRO-CL AFinancials290.2K$19.5M12.9%-3.1%
APG API GROUP CORPServices media429.9K$17.4M11.6%-21.5%
HEI/A HEICO CORP-CLASS AIndustrials80.0K$16.9M11.2%-1.0%
TRU TRANSUNIONServices media208.0K$14.4M9.6%-5.5%
RACE FERRARI NVIndustrials41.9K$14.2M9.4%-5.1%
SUNB SUNBELT RENTALS HOLDINGS INCServices media195.7K$12.7M8.5%New
MCO MOODY'S CORPServices media27.7K$12.1M8.0%+2.6%
HLT HILTON WORLDWIDE HOLDINGS INServices media39.1K$11.9M7.9%+23.4%
BGSI THE BOYD GROUP INCServices media79.5K$10.1M6.7%-1.6%
CLH CLEAN HARBORS INCUtilities23.5K$6.7M4.5%+118.5%
WCN WASTE CONNECTIONS INCUtilities40.2K$6.5M4.3%+165.5%
COMP COMPASS INC - CLASS AReal estate693.6K$5.1M3.4%+36.8%
JBHT HUNT (JB) TRANSPRT SVCS INCIndustrials7.2K$1.5M1.0%New
ODFL OLD DOMINION FREIGHT LINEIndustrials7.8K$1.5M1.0%-29.9%

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRMay 15, 202614$150.6M canonicalSEC ↗
Q4 202513F-HRFeb 17, 202613$150.5M canonicalSEC ↗
Q3 202513F-HRNov 14, 20259$137.8M canonicalSEC ↗
Q2 202513F-HRAug 14, 20258$145.9M canonicalSEC ↗
Q1 202513F-HRMay 15, 20258$119.1M canonicalSEC ↗
Q4 202413F-HRFeb 14, 20257$113.5M canonicalSEC ↗
Q3 202413F-HRNov 14, 20247$139.7M canonicalSEC ↗
Q2 202413F-HRAug 14, 20245$101.0M canonicalSEC ↗
Q1 202413F-HRMay 15, 20246$102.9M canonicalSEC ↗