EMERALD ADVISERS, LLC — 13F Holdings & Portfolio
CIK 1015083 · latest 13F-HR filed 2026-05-04
EMERALD ADVISERS, LLC manages $3.16B in 13F-reported U.S. long-equity assets across 248 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are MOD (2.59%), GH (2.46%), BE (2.32%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 19 new positions, exited 17, added to 73, and trimmed 115.
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.
$3.16B
Long-equity book
248
Distinct positions
2026-03-31
Filed 2026-05-04
+19 / −17 / ↑73 / ↓115
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- MODINE MANUFACTURING CO$29.9M +57.4%
- BLOOM ENERGY CO$24.8M +51.1%
- ARGAN INC$21.2M +68.9%
- IPG PHOTONICS CORP$20.3M +139.2%
- ASTRONICS CORP$16.8M +127.6%
Top Trims
- LUMENTUM HOLDINGS INC-$52.4M -96.1%
- WAVE LIFE SCIENCES LTD-$32.6M -78.1%
- CREDO TECHNOLOGY GROUP HOLDINGS-$24.6M -34.4%
- ACADIA PHARMACEUTICALS INC-$21.0M -97.1%
- AEROVIRONMENT INC-$18.2M -35.7%
New Positions
- PLEXUS CORP$33.7M
- PIPER SANDLER CO$27.6M
- COHU INC$23.9M
- PALVELLA THERAPEUTICS INC$20.1M
- BOBS DISCOUNT FURNITURE$15.8M
Exited Positions
- VITAL FARMS INC$37.1M
- PIPER SANDLER CO$28.0M
- MERIT MED SYS INC$20.0M
- HIMS & HERS HEALTH INC$8.7M
- ULTRAGENYX PHARMACEUTICAL INC$4.9M
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 | MODINE MANUFACTURING CO | MOD | 607828100 | $81.9M | 2.59% | 378,118 | SH |
| 2 | GUARDANT HEALTH INC | GH | 40131M109 | $77.8M | 2.46% | 841,917 | SH |
| 3 | BLOOM ENERGY CO | BE | 093712107 | $73.4M | 2.32% | 541,787 | SH |
| 4 | TTM TECHNOLOGIES INC | TTMI | 87305R109 | $73.1M | 2.31% | 750,417 | SH |
| 5 | COGENT BIOSCIENCES INC | COGT | 19240Q201 | $61.1M | 1.93% | 1,588,132 | SH |
| 6 | KRATOS DEFENSE AND SECURITY | KTOS | 50077B207 | $58.9M | 1.87% | 835,929 | SH |
| 7 | VSE CORPORATION | VSEC | 918284100 | $58.0M | 1.84% | 314,789 | SH |
| 8 | FABRINET | FN | G3323L100 | $56.1M | 1.77% | 107,493 | SH |
| 9 | ARGAN INC | AGX | 04010E109 | $51.9M | 1.64% | 95,272 | SH |
| 10 | AAR CORPORATION | AIR | 000361105 | $48.8M | 1.54% | 445,693 | SH |
| 11 | CREDO TECHNOLOGY GROUP HOLDINGS | CRDO | G25457105 | $46.8M | 1.48% | 498,574 | SH |
| 12 | TRAVERE THERAPEUTICS INC | TVTX | 89422G107 | $46.3M | 1.46% | 1,557,196 | SH |
| 13 | ESCO TECHNOLOGIES INC | ESE | 296315104 | $45.8M | 1.45% | 162,653 | SH |
| 14 | MERCURY SYSTEMS INC | MRCY | 589378108 | $43.4M | 1.37% | 595,314 | SH |
| 15 | LIVANOVA PLC | LIVN | G5509L101 | $42.6M | 1.35% | 670,207 | SH |
| 16 | NLIGHT INC | LASR | 65487K100 | $42.6M | 1.35% | 746,674 | SH |
| 17 | RAMBUS INC | RMBS | 750917106 | $42.4M | 1.34% | 493,236 | SH |
| 18 | AXOS FINANCIAL INC | AX | 05465C100 | $42.2M | 1.34% | 496,232 | SH |
| 19 | NATIONAL VISION HOLDINGS | EYE | 63845R107 | $38.9M | 1.23% | 1,502,644 | SH |
| 20 | BRIDGEBIO PHARMA INC | BBIO | 10806X102 | $38.3M | 1.21% | 515,361 | SH |
| 21 | KULICKE AND SOFFA INDUSTRIES | KLIC | 501242101 | $37.4M | 1.18% | 568,996 | SH |
| 22 | APPLIED OPTOELECTRONICS INC | AAOI | 03823U102 | $36.7M | 1.16% | 433,882 | SH |
| 23 | MIRUM PHARMACEUTICALS INC | MIRM | 604749101 | $36.7M | 1.16% | 397,263 | SH |
| 24 | PALOMAR HOLDINGS INC | PLMR | 69753M105 | $35.7M | 1.13% | 298,359 | SH |
| 25 | SEMTECH CORP | SMTC | 816850101 | $35.1M | 1.11% | 457,018 | SH |
| 26 | IPG PHOTONICS CORP | IPGP | 44980X109 | $34.9M | 1.11% | 304,916 | SH |
| 27 | RUSH STREET INTERACTIVE INC | RSI | 782011100 | $34.2M | 1.08% | 1,573,500 | SH |
| 28 | TRANSMEDICS GROUP INC | TMDX | 89377M109 | $34.1M | 1.08% | 342,791 | SH |
| 29 | PLEXUS CORP | PLXS | 729132100 | $33.7M | 1.07% | 166,532 | SH |
| 30 | SOLARIS ENERGY INFRASTRUCTURE INC | SEI | 83418M103 | $33.6M | 1.06% | 594,687 | SH |
| 31 | AEROVIRONMENT INC | AVAV | 008073108 | $32.9M | 1.04% | 179,874 | SH |
| 32 | STERLING INFRASTRUCTURE INC | STRL | 859241101 | $32.5M | 1.03% | 79,836 | SH |
| 33 | IMAX CORP | IMAX | 45245E109 | $32.3M | 1.02% | 849,148 | SH |
| 34 | OLLIE'S BARGAIN OUTLET HOLDINGS | OLLI | 681116109 | $31.9M | 1.01% | 347,125 | SH |
| 35 | INTERDIGITAL INC PA COM | IDCC | 45867G101 | $31.4M | 0.99% | 104,065 | SH |
| 36 | MOELIS & CO | MC | 60786M105 | $31.2M | 0.99% | 548,077 | SH |
| 37 | CECO ENVIRONMENTAL CORP | CECO | 125141101 | $31.2M | 0.99% | 523,017 | SH |
| 38 | SPYRE THERAPEUTICS | SYRE | 00773J202 | $30.9M | 0.98% | 613,365 | SH |
| 39 | BOOT BARN HOLDINGS INC | BOOT | 099406100 | $30.5M | 0.97% | 208,425 | SH |
| 40 | UMB FINANCIAL CORP | UMBF | 902788108 | $30.2M | 0.95% | 267,438 | SH |
| 41 | ASTRONICS CORP | ATRO | 046433108 | $30.0M | 0.95% | 449,126 | SH |
| 42 | SPX TECHNOLOGIES INC | SPXC | 78473E103 | $29.4M | 0.93% | 147,250 | SH |
| 43 | ARLO TECHNOLOGIES | ARLO | 04206A101 | $28.7M | 0.91% | 2,018,929 | SH |
| 44 | NEKTAR THERAPEUTICS | NKTR | 640268306 | $28.4M | 0.90% | 394,604 | SH |
| 45 | FRESHPET INC | FRPT | 358039105 | $28.3M | 0.90% | 480,703 | SH |
| 46 | PDF SOLUTIONS INC | PDFS | 693282105 | $28.2M | 0.89% | 860,819 | SH |
| 47 | PIPER SANDLER CO | PIPR | 724078209 | $27.6M | 0.87% | 360,578 | SH |
| 48 | SKYWARD SPECIALTY INSURANCE | SKWD | 830940102 | $27.4M | 0.87% | 627,908 | SH |
| 49 | ALLEGIANT TRAVEL CO | ALGT | 01748X102 | $27.4M | 0.87% | 338,033 | SH |
| 50 | THE BANCORP INC | TBBK | 05969A105 | $26.4M | 0.84% | 491,340 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-04 | $3.16B | 248 | 0001104659-26-054901 |
| 2025-12-31 | 2026-02-09 | $3.25B | 246 | 0001104659-26-011928 |