12th Street Asset Management Company, LLC — 13F Holdings & Portfolio
CIK 1633703 · latest 13F-HR filed 2026-05-12
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$611.4M
Long-equity book
32
Distinct positions
2026-03-31
Filed 2026-05-12
+2 / −2 / ↑9 / ↓14
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- KNIGHT SWIFT TRANSN HLDGS INC$18.6M +192.7%
- CLEAN HARBORS INC$9.4M +19.1%
- RUSH ENTERPISES INC$7.0M +118.8%
- KIRBY CORP$5.8M +17.8%
- STONEX GROUP INC COM$3.3M +27.6%
Top Trims
- CIENA CORP-$17.4M -41.3%
- SOMNIGROUP INTERNATIONAL INC C-$7.7M -20.3%
- CRH PLC ORD-$5.6M -13.8%
- I3 VERTICALS INC COM CL A-$3.3M -22.0%
- HEALTHEQUITY INC-$2.7M -11.5%
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | CLEAN HARBORS INC | CLH | 184496107 | $58.7M | 9.60% | 204,716 | SH |
| 2 | LKQ CORP | LKQ | 501889208 | $40.7M | 6.65% | 1,384,808 | SH |
| 3 | KIRBY CORP | KEX | 497266106 | $38.7M | 6.33% | 291,138 | SH |
| 4 | SPDR SER TR SPDR BLOOMBERG | BIL | 78468R663 | $37.6M | 6.14% | 409,762 | SH |
| 5 | CRH PLC ORD | CRH | G25508105 | $35.0M | 5.72% | 332,550 | SH |
| 6 | PINNACLE FINL PARTNERS INC COM | PNFP | 72348N109 | $34.7M | 5.67% | 402,273 | SH |
| 7 | SOMNIGROUP INTERNATIONAL INC C | SGI | 88023U101 | $30.2M | 4.94% | 408,561 | SH |
| 8 | KNIGHT SWIFT TRANSN HLDGS INC | KNX | 499049104 | $28.2M | 4.61% | 489,388 | SH |
| 9 | AUTOZONE INC | AZO | 053332102 | $28.0M | 4.59% | 8,301 | SH |
| 10 | BRUNSWICK CORP | BC | 117043109 | $25.6M | 4.19% | 351,872 | SH |
| 11 | CIENA CORP | CIEN | 171779309 | $24.6M | 4.03% | 63,487 | SH |
| 12 | DYCOM INDS INC | DY | 267475101 | $23.2M | 3.80% | 68,478 | SH |
| 13 | HEALTHEQUITY INC | HQY | 42226A107 | $21.0M | 3.44% | 251,361 | SH |
| 14 | RB GLOBAL INC COM NPV | RBA | 74935Q107 | $20.3M | 3.33% | 212,254 | SH |
| 15 | FIRST HORIZON NATL CORP | FHN | 320517105 | $15.9M | 2.60% | 698,869 | SH |
| 16 | STONEX GROUP INC COM | SNEX | 861896108 | $15.1M | 2.47% | 187,045 | SH |
| 17 | MASCO CORP | MAS | 574599106 | $13.6M | 2.22% | 224,965 | SH |
| 18 | GENERAC HLDGS INC | GNRC | 368736104 | $13.1M | 2.14% | 66,910 | SH |
| 19 | RUSH ENTERPISES INC | RUSHA | 781846209 | $12.9M | 2.11% | 195,326 | SH |
| 20 | FB FINL CORP | FBK | 30257X104 | $12.8M | 2.10% | 247,040 | SH |
| 21 | DELL TECHNOLOGIES INC | DELL | 24703L202 | $12.3M | 2.02% | 75,110 | SH |
| 22 | I3 VERTICALS INC COM CL A | IIIV | 46571Y107 | $11.7M | 1.91% | 522,821 | SH |
| 23 | PROGRESSIVE CORP OHIO | PGR | 743315103 | $10.0M | 1.64% | 50,627 | SH |
| 24 | DIAMONDBACK ENERGY INC | FANG | 25278X109 | $9.8M | 1.60% | 49,307 | SH |
| 25 | GRANITE CONSTR INC | GVA | 387328107 | $7.5M | 1.22% | 62,392 | SH |
| 26 | HARROW INC COM | HROW | 415858109 | $5.9M | 0.97% | 168,731 | SH |
| 27 | ACUSHNET HOLDINGS CORP | GOLF | 005098108 | $5.8M | 0.95% | 62,146 | SH |
| 28 | CONSTRUCTION PARTNERS INC COM | ROAD | 21044C107 | $5.7M | 0.94% | 51,564 | SH |
| 29 | EAGLE MATERIALS INC | EXP | 26969P108 | $5.1M | 0.84% | 27,102 | SH |
| 30 | AMERICAN HOMES 4 RENT | AMH | 02665T306 | $3.9M | 0.63% | 138,630 | SH |
| 31 | LOUISIANA PAC CORP | LPX | 546347105 | $3.1M | 0.51% | 42,853 | SH |
| 32 | ISHARES TR RUSSELL 3000 | IWV | 464287689 | $641.3K | 0.10% | 1,730 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-12 | $611.4M | 32 | 0001633703-26-000007 |
| 2025-12-31 | 2026-02-09 | $606.8M | 32 | 0001633703-26-000003 |
| 2025-09-30 | 2025-11-06 | $591.2M | 30 | 0001633703-25-000013 |