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Q2 2026 13F · SEC CIK 1633703

12th Street Asset Management Company, LLC

Asset managerFiled 2026-08-13 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value
$701.8M
Reported positions
32
Top holdings a year, 3 yrs
+12.2%
Assets under management
$621.6M

12th Street Asset Management Company, LLC is an asset manager that reported 32 positions worth $701.8M in its Q2 2026 13F, filed 2026-08-13. Its largest holdings were SPDR Brcy1-3 Ser (BIL, 7.3%), Clean Harbors Inc (CLH, 7.1%), Pinnacle Finl Partners Inc Com (PNFP, 6.2%). A portfolio copying its top holdings returned 12.2% a year over the last 3 years, against 20.4% for the S&P 500.

12th Street Asset Management Company, LLC holdings all 32 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

12th Street Asset Management Company, LLC 13F holdings
Stock% of 13F valueShare changeReported value
BILSPDR Brcy1-3 Ser7.3%+37.3%$51.5M
CLHClean Harbors Inc7.1%-18.7%$49.8M
PNFPPinnacle Finl Partners Inc Com6.2%+7.1%$43.4M
KNXKnight-Swift Transn Hldgs in6.1%+12.1%$42.7M
KEXKirby Corp5.7%+0.5%$39.8M
CRHCrh PLC5.1%+1.0%$35.9M
TPXSomnigroup International Inc4.6%+1.1%$32.4M
HQYHealthequity Inc4.4%+37.4%$31.2M
BCBrunswick Corp4.4%+4.1%$30.9M
DELLDell Technologies Inc4.3%-6.0%$30.5M
DYDycom Industries Inc4.0%-19.5%$27.9M
RBARb Global Inc3.7%+4.7%$25.9M
POOLPool Corp3.5%—$24.6M
CIENCiena Corp3.3%-26.3%$22.9M
AZOAutozone Inc3.0%-20.7%$21.0M
SSNCSs&c Tech Hldgs3.0%—$20.8M
GNRCGenerac Hldgs Inc2.8%+2.0%$20.0M
LKQLkq Corp2.7%-47.5%$19.1M
MASMasco Corp.2.3%-10.1%$16.4M
SNEXStonex Group Inc.2.0%-35.5%$14.3M
MRTNMarten Trans Ltd1.9%—$13.2M
GVAGranite Construction Inc Com1.7%+23.5%$12.2M
PGRProgressive Corp.1.6%+1.0%$11.2M
RUSHARush Enterprises Class A (RUSH1.5%-26.1%$10.5M
FBKFb Finl Corp1.4%-30.2%$9.5M
FANGDiamondback Energy Inc1.2%+0.8%$8.7M
SITESiteone Landscape Supply Inc1.2%—$8.6M
ROADConstruction Partners Inc0.9%+7.4%$6.6M
EXPEagle Materials Inc0.9%-0.0%$6.1M
LPXLouisiana-Pacific Corporation0.8%+60.0%$5.4M
IIIVI3 Verticals Inc0.7%-57.2%$4.8M
HROWHarrow Inc Com0.6%-45.8%$3.9M

What 12th Street Asset Management Company, LLC bought and sold in Q2 2026, against Q1 2026.

New positions

Added to

Reduced

Sold out

Share counts compared with the Q1 2026 13F; a split also changes share counts.

How the holdings did against the S&P 500.

1 year
+25.3% /yr
S&P 500 +20.1%
3 years
+12.2% /yr
S&P 500 +20.4%
5 years
+9.2% /yr
S&P 500 +11.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value and rebuilt each quarter on the day the filing became public. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter13F valuePositions
Q2 2026$701.8M32
Q1 2026$611.4M32
Q4 2025$606.8M32
Q3 2025$591.2M30
Q2 2025$581.7M30
Q1 2025$586.8M29
Q4 2024$606.6M31
Q3 2024$593.0M30
Q2 2024$548.0M30
Q1 2024$576.5M29
Q4 2023$531.6M32
Q3 2023$487.7M33

Questions about 12th Street Asset Management Company, LLC's portfolio

What stocks does 12th Street Asset Management Company, LLC own?

12th Street Asset Management Company, LLC's latest 13F, for Q2 2026 and filed Aug 13, 2026, lists 32 positions worth $701.8M. The largest are SPDR Brcy1-3 Ser (BIL) at 7.3%, Clean Harbors Inc (CLH) at 7.1%, Pinnacle Finl Partners Inc Com (PNFP) at 6.2%, Knight-Swift Transn Hldgs in (KNX) at 6.1% and Kirby Corp (KEX) at 5.7%.

What did 12th Street Asset Management Company, LLC buy last quarter?

In Q2 2026, 12th Street Asset Management Company, LLC added a new position in Pool Corp (POOL), a new position in Ss&c Tech Hldgs (SSNC), a new position in Marten Trans Ltd (MRTN), a new position in Siteone Landscape Supply Inc (SITE), Louisiana-Pacific Corporation (LPX) (+60.0% shares), Healthequity Inc (HQY) (+37.4% shares) and SPDR Brcy1-3 Ser (BIL) (+37.3% shares), compared with its Q1 2026 filing.

What did 12th Street Asset Management Company, LLC sell last quarter?

In Q2 2026, 12th Street Asset Management Company, LLC sold all of First Horizon Corporation (FHN), sold all of Acushnet Holdings Co (GOLF), sold all of American Homes 4 Rent (AMH), sold all of Ishares Russell 3000 Index (IWV), I3 Verticals Inc (IIIV) (-57.2% shares), Lkq Corp (LKQ) (-47.5% shares) and Harrow Inc Com (HROW) (-45.8% shares), compared with its Q1 2026 filing.

How has 12th Street Asset Management Company, LLC's portfolio performed?

A portfolio copying 12th Street Asset Management Company, LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +12.2% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +25.3% against +20.1%. Over 5 years: +9.2% a year against +11.6%.

When is 12th Street Asset Management Company, LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. 12th Street Asset Management Company, LLC's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.

How much money does 12th Street Asset Management Company, LLC manage?

12th Street Asset Management Company, LLC reported $621.6M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $701.8M.