DIKER MANAGEMENT LLC — 13F Holdings & Portfolio
CIK 1276525 · latest 13F-HR filed 2026-05-15
DIKER MANAGEMENT LLC manages $112.1M in 13F-reported U.S. long-equity assets across 42 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are STE (50.80%), LITE (6.27%), COHR (4.25%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 10 new positions, exited 9, added to 9, and trimmed 20.
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.
$112.1M
Long-equity book
42
Distinct positions
2026-03-31
Filed 2026-05-15
+10 / −9 / ↑9 / ↓20
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- SEMTECH CORP$929.7K +126.2%
- NEBIUS GROUP N.V.$802.0K +24.0%
- BIOVENTUS INC$500.0K +268.8%
- CELESTICA INC$479.8K +27.1%
- SHOPIFY INC$339.2K +10.5%
Top Trims
- STERIS PLC-$8.3M -12.7%
- COHERENT CORP-$2.6M -35.5%
- APPLE INC-$2.1M -38.7%
- GENERAL MTRS CO-$858.3K -56.1%
- MICROSOFT CORP-$834.0K -40.8%
New Positions
- AMKOR TECHNOLOGY INC$2.7M
- ULTRA CLEAN HLDGS INC$1.7M
- ICHOR HOLDINGS$1.4M
- AMPHENOL CORP$1.3M
- AST SPACEMOBILE INC$497.2K
Exited Positions
- KLAVIYO INC$2.6M
- MONGODB INC$2.1M
- COMPASS INC$1.6M
- SOFI TECHNOLOGIES INC$1.3M
- RUBRIK INC.$764.8K
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 | STERIS PLC | STE | G8473T100 | $57.0M | 50.80% | 257,593 | SH |
| 2 | LUMENTUM HLDGS INC | LITE | 55024U109 | $7.0M | 6.27% | 10,000 | SH |
| 3 | COHERENT CORP | COHR | 19247G107 | $4.8M | 4.25% | 20,000 | SH |
| 4 | NEBIUS GROUP N.V. | NBIS | N97284108 | $4.2M | 3.70% | 40,000 | SH |
| 5 | ADVANCED MICRO DEVICES INC | AMD | 007903107 | $4.1M | 3.63% | 20,000 | SH |
| 6 | SHOPIFY INC | SHOP | 82509L107 | $3.6M | 3.17% | 30,000 | SH |
| 7 | APPLE INC | AAPL | 037833100 | $3.3M | 2.96% | 13,097 | SH |
| 8 | AMKOR TECHNOLOGY INC | AMKR | 031652100 | $2.7M | 2.41% | 60,000 | SH |
| 9 | CELESTICA INC | CLS | 15101Q207 | $2.3M | 2.01% | 8,000 | SH |
| 10 | SHARKNINJA INC | SN | G8068L108 | $2.1M | 1.89% | 20,000 | SH |
| 11 | ULTRA CLEAN HLDGS INC | UCTT | 90385V107 | $1.7M | 1.50% | 27,000 | SH |
| 12 | SEMTECH CORP | SMTC | 816850101 | $1.7M | 1.49% | 21,675 | SH |
| 13 | JFROG LTD | FROG | M6191J100 | $1.4M | 1.26% | 30,000 | SH |
| 14 | ICHOR HOLDINGS | ICHR | G4740B105 | $1.4M | 1.25% | 30,000 | SH |
| 15 | IREN LIMITED | IREN | Q4982L109 | $1.4M | 1.22% | 40,000 | SH |
| 16 | AMPHENOL CORP | APH | 032095101 | $1.3M | 1.13% | 10,000 | SH |
| 17 | MICROSOFT CORP | MSFT | 594918104 | $1.2M | 1.08% | 3,263 | SH |
| 18 | TOLL BROTHERS INC | TOL | 889478103 | $873.4K | 0.78% | 6,400 | SH |
| 19 | ANIKA THERAPEUTICS INC | ANIK | 035255108 | $778.1K | 0.69% | 53,662 | SH |
| 20 | COREWEAVE INC | CRWV | 21873S108 | $774.7K | 0.69% | 10,000 | SH |
| 21 | BIOVENTUS INC | BVS | 09075A108 | $686.0K | 0.61% | 75,136 | SH |
| 22 | GENERAL MTRS CO | GM | 37045V100 | $670.5K | 0.60% | 9,000 | SH |
| 23 | LANTHEUS HLDGS INC | LNTH | 516544103 | $623.6K | 0.56% | 8,222 | SH |
| 24 | THREDUP INC | TDUP | 88556E102 | $526.6K | 0.47% | 160,555 | SH |
| 25 | SERVICENOW INC | NOW | 81762P102 | $522.8K | 0.47% | 5,000 | SH |
| 26 | AST SPACEMOBILE INC | ASTS | 00217D100 | $497.2K | 0.44% | 6,000 | SH |
| 27 | ARTIVION INC | AORT | 228903100 | $494.4K | 0.44% | 13,500 | SH |
| 28 | SPDR GOLD TR | GLD | 78463V107 | $489.2K | 0.44% | 1,137 | SH |
| 29 | CHEVRON CORPORATION | CVX | 166764100 | $450.2K | 0.40% | 2,176 | SH |
| 30 | ROCKET LAB CORP | RKLB | 773121108 | $449.5K | 0.40% | 7,000 | SH |
| 31 | SERVICETITAN INC | TTAN | 81764X103 | $444.2K | 0.40% | 7,000 | SH |
| 32 | 3M CO | MMM | 88579Y101 | $427.1K | 0.38% | 2,941 | SH |
| 33 | EVERPURE INC | P | 74624M102 | $413.3K | 0.37% | 7,000 | SH |
| 34 | PULSE BIOSCIENCES INC | PLSE | 74587B101 | $410.2K | 0.37% | 19,000 | SH |
| 35 | D R HORTON INC | DHI | 23331A109 | $342.8K | 0.31% | 2,498 | SH |
| 36 | AMERICAN EAGLE OUTFITTERS IN | AEO | 02553E106 | $334.5K | 0.30% | 20,027 | SH |
| 37 | JOHNSON & JOHNSON | JNJ | 478160104 | $282.6K | 0.25% | 1,156 | SH |
| 38 | ARS PHARMACEUTICALS INC | SPRY | 82835W108 | $269.1K | 0.24% | 33,508 | SH |
| 39 | BIRKENSTOCK HOLDING PLC | BIRK | M2029K104 | $240.1K | 0.21% | 6,700 | SH |
| 40 | VANDA PHARMACEUTICALS INC | VNDA | 921659108 | $151.2K | 0.13% | 21,880 | SH |
| 41 | LEXICON PHARMACEUTICALS INC | LXRX | 528872302 | $31.2K | 0.03% | 20,000 | SH |
| 42 | JASPER THERAPEUTICS INC | JSPR | 471871202 | $30.7K | 0.03% | 35,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $112.1M | 42 | 0001172661-26-002181 |
| 2025-12-31 | 2026-02-17 | $129.3M | 41 | 0001172661-26-000836 |
| 2025-09-30 | 2025-11-14 | $123.8M | 38 | 0001172661-25-004809 |