Portolan Capital Management
Latest statistics and disclosures from Portolan Capital Management's latest quarterly 13F-HR filing:
- Top 5 stock holdings are LNTH, SLM, KTOS, GENI, MOD, and represent 19.24% of Portolan Capital Management's stock portfolio.
- Added to shares of these 10 stocks: TREE (+$22M), FOUR (+$22M), LQDT (+$19M), SLM (+$18M), EBAY (+$16M), DBRG (+$13M), MOD (+$13M), OPRA (+$13M), BIDU (+$12M), GENI (+$12M).
- Started 21 new stock positions in PACK, GEHC, TMDX, DOMO, EVER, FIVN, LQDT, BIDU, RMNI, CELH. OPRT, GPOR, GEN, REAX, TREE, MYGN, GDOT, CDNA, UPWK, PRTC, GES.
- Reduced shares in these 10 stocks: SNAP (-$25M), TLN (-$22M), SMTC (-$21M), CLS (-$18M), CORZ (-$14M), RDDT (-$13M), AAOI (-$12M), RELY (-$12M), GNRC (-$11M), DELL (-$10M).
- Sold out of its positions in ALTG, AMBC, AMPH, APLD, AAOI, CDMO, BLDP, BILL, BLFS, CACI.
- Portolan Capital Management was a net buyer of stock by $11M.
- Portolan Capital Management has $1.3B in assets under management (AUM), dropping by -11.50%.
- Central Index Key (CIK): 0001350290
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Portfolio Holdings for Portolan Capital Management
Portolan Capital Management holds 109 positions in its portfolio as reported in the March 2025 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price | |
|---|---|---|---|---|---|---|
| Lantheus Holdings Inc Common Stock Usd 0.01 (LNTH) | 6.4 | $85M | +6% | 867k | 97.60 |
|
| SLM Corporation (SLM) | 3.4 | $44M | +67% | 1.5M | 29.37 |
|
| Kratos Defense &sec Solutio Com New (KTOS) | 3.3 | $43M | +8% | 1.5M | 29.69 |
|
| Genius Sports Shares Cl A (GENI) | 3.3 | $43M | +39% | 4.3M | 10.01 |
|
| Modine Manufacturing (MOD) | 2.9 | $38M | +50% | 494k | 76.75 |
|
| Shift4 Pmts Cl A (FOUR) | 2.5 | $33M | +188% | 407k | 81.71 |
|
| eBay (EBAY) | 2.4 | $32M | +99% | 475k | 67.73 |
|
| Gates Indl Corp Ord Shs (GTES) | 2.4 | $32M | +54% | 1.7M | 18.41 |
|
| Celestica (CLS) | 2.4 | $31M | -37% | 393k | 78.81 |
|
| Honest (HNST) | 2.0 | $26M | +2% | 5.5M | 4.70 |
|
| Castle Biosciences (CSTL) | 1.9 | $25M | +62% | 1.3M | 20.02 |
|
| Elf Beauty (ELF) | 1.9 | $25M | +71% | 395k | 62.79 |
|
| Opera Sponsored Ads (OPRA) | 1.9 | $24M | +104% | 1.5M | 15.94 |
|
| Porch Group (PRCH) | 1.8 | $24M | +43% | 3.3M | 7.29 |
|
| RadNet (RDNT) | 1.8 | $24M | +12% | 478k | 49.72 |
|
| Tree (TREE) | 1.7 | $22M | NEW | 439k | 50.27 |
|
| TTM Technologies (TTMI) | 1.6 | $21M | -21% | 1.0M | 20.51 |
|
| Crocs (CROX) | 1.6 | $21M | +138% | 194k | 106.20 |
|
| Digitalbridge Group Cl A New (DBRG) | 1.5 | $20M | +186% | 2.3M | 8.82 |
|
| Myt Netherlands Parent B V Ads (LUXE) | 1.5 | $20M | +38% | 2.6M | 7.56 |
|
| Vishay Precision (VPG) | 1.5 | $20M | +66% | 821k | 24.09 |
|
| I3 Verticals Com Cl A (IIIV) | 1.5 | $20M | +16% | 789k | 24.67 |
|
| Liquidity Services (LQDT) | 1.5 | $19M | NEW | 626k | 31.01 |
|
| Quanterix Ord (QTRX) | 1.5 | $19M | +14% | 3.0M | 6.51 |
|
| Cellebrite Di Ordinary Shares (CLBT) | 1.5 | $19M | +8% | 989k | 19.43 |
|
| Kemper Corp Del (KMPR) | 1.5 | $19M | +24% | 287k | 66.85 |
|
| Kura Sushi Usa Cl A Com (KRUS) | 1.5 | $19M | 373k | 51.20 |
|
|
| Tapestry (TPR) | 1.3 | $17M | +24% | 247k | 70.41 |
|
| Payoneer Global (PAYO) | 1.2 | $16M | +3% | 2.2M | 7.31 |
|
| Draftkings Com Cl A (DKNG) | 1.2 | $16M | +53% | 492k | 33.21 |
|
| Albertsons Cos Common Stock (ACI) | 1.2 | $16M | +44% | 710k | 21.99 |
|
| Super Micro Computer Com New (SMCI) | 1.1 | $15M | +363% | 434k | 34.24 |
|
| Virtu Finl Cl A (VIRT) | 1.1 | $15M | -26% | 389k | 38.12 |
|
| United Therapeutics Corporation (UTHR) | 1.1 | $14M | +216% | 45k | 308.27 |
|
| QuinStreet (QNST) | 1.1 | $14M | -15% | 778k | 17.84 |
|
| Bel Fuse CL B (BELFB) | 1.0 | $14M | -11% | 184k | 74.86 |
|
| Baidu Spon Adr Rep A (BIDU) | 0.9 | $12M | NEW | 135k | 92.03 |
|
| Dycom Industries (DY) | 0.9 | $12M | +248% | 81k | 152.34 |
|
| Potbelly (PBPB) | 0.9 | $12M | +29% | 1.3M | 9.51 |
|
| Mamamancini's Holdings (MAMA) | 0.9 | $12M | +122% | 1.8M | 6.51 |
|
| Skechers U S A Cl A (SKX) | 0.9 | $11M | 200k | 56.78 |
|
|
| Sweetgreen Com Cl A (SG) | 0.8 | $11M | +43% | 440k | 25.02 |
|
| Royalty Pharma Shs Class A (RPRX) | 0.8 | $11M | +2% | 352k | 31.13 |
|
| Enova Intl (ENVA) | 0.8 | $11M | -45% | 113k | 96.56 |
|
| Weave Communications (WEAV) | 0.8 | $11M | +119% | 952k | 11.09 |
|
| Zeta Global Holdings Corp Cl A (ZETA) | 0.8 | $10M | +11% | 742k | 13.56 |
|
| Northern Oil And Gas Inc Mn (NOG) | 0.8 | $10M | +68% | 332k | 30.23 |
|
| Sportradar Group Class A Ord Shs (SRAD) | 0.7 | $9.5M | -38% | 438k | 21.62 |
|
| Flex Ord (FLEX) | 0.7 | $9.3M | -35% | 281k | 33.08 |
|
| Sunopta (STKL) | 0.7 | $9.2M | +13% | 1.9M | 4.86 |
|
| Powell Industries (POWL) | 0.7 | $9.1M | +322% | 53k | 170.33 |
|
| Take-Two Interactive Software (TTWO) | 0.7 | $8.9M | 43k | 207.25 |
|
|
| Lucky Strike Entertainment C Cl A Com (LUCK) | 0.7 | $8.6M | -38% | 880k | 9.76 |
|
| Guess? (GES) | 0.7 | $8.6M | NEW | 776k | 11.07 |
|
| Talen Energy Corp (TLN) | 0.6 | $8.5M | -72% | 43k | 199.67 |
|
| Upwork (UPWK) | 0.6 | $8.4M | NEW | 645k | 13.05 |
|
| Power Solutions Intl Com New (PSIX) | 0.6 | $7.5M | -13% | 296k | 25.28 |
|
| Gulfport Energy Corp Common Shares (GPOR) | 0.6 | $7.5M | NEW | 41k | 184.14 |
|
| Caredx (CDNA) | 0.6 | $7.3M | NEW | 412k | 17.75 |
|
| Meta Platforms Cl A (META) | 0.5 | $7.2M | -15% | 12k | 576.36 |
|
| Ermenegildo Zegna N V Ord Shs (ZGN) | 0.5 | $7.1M | +135% | 957k | 7.40 |
|
| MarineMax (HZO) | 0.5 | $6.9M | +51% | 322k | 21.50 |
|
| NetGear (NTGR) | 0.5 | $6.9M | +47% | 283k | 24.46 |
|
| Lindblad Expeditions Hldgs I (LIND) | 0.5 | $6.4M | +26% | 689k | 9.27 |
|
| Marex Group Ord (MRX) | 0.5 | $6.2M | -22% | 174k | 35.32 |
|
| Health Catalyst (HCAT) | 0.5 | $6.0M | +75% | 1.3M | 4.53 |
|
| Custom Truck One Source Com Cl A (CTOS) | 0.4 | $5.9M | -3% | 1.4M | 4.22 |
|
| Brightview Holdings (BV) | 0.4 | $5.4M | +28% | 421k | 12.84 |
|
| Green Dot Corp Cl A (GDOT) | 0.4 | $5.4M | NEW | 636k | 8.44 |
|
| Bio Rad Labs Cl A (BIO) | 0.4 | $5.3M | -28% | 22k | 243.56 |
|
| Tecnoglass Ord Shs (TGLS) | 0.4 | $5.2M | -35% | 73k | 71.55 |
|
| Celsius Hldgs Com New (CELH) | 0.4 | $5.1M | NEW | 143k | 35.62 |
|
| Candel Therapeutics (CADL) | 0.4 | $5.0M | +16% | 881k | 5.65 |
|
| Nortonlifelock (GEN) | 0.4 | $5.0M | NEW | 187k | 26.54 |
|
| Warby Parker Cl A Com (WRBY) | 0.4 | $4.9M | -39% | 268k | 18.23 |
|
| Myriad Genetics (MYGN) | 0.4 | $4.9M | NEW | 550k | 8.87 |
|
| Encore Capital (ECPG) | 0.4 | $4.8M | -34% | 141k | 34.28 |
|
| Kosmos Energy (KOS) | 0.3 | $4.6M | +24% | 2.0M | 2.28 |
|
| Domo Com Cl B (DOMO) | 0.3 | $4.5M | NEW | 584k | 7.76 |
|
| Oportun Finl Corp (OPRT) | 0.3 | $4.5M | NEW | 818k | 5.49 |
|
| Rimini Str Inc Del (RMNI) | 0.3 | $4.3M | NEW | 1.2M | 3.48 |
|
| Turning Pt Brands (TPB) | 0.3 | $4.2M | +10% | 71k | 59.44 |
|
| The Real Brokerage Com New (REAX) | 0.3 | $4.2M | NEW | 1.0M | 4.06 |
|
| Establishment Labs Holdings Ord (ESTA) | 0.3 | $4.1M | -48% | 101k | 40.80 |
|
| Ge Healthcare Technologies I Common Stock (GEHC) | 0.3 | $3.8M | NEW | 47k | 80.71 |
|
| Five9 (FIVN) | 0.3 | $3.8M | NEW | 138k | 27.15 |
|
| Viking Therapeutics (VKTX) | 0.3 | $3.4M | +8% | 139k | 24.15 |
|
| Identiv Com New (INVE) | 0.3 | $3.3M | 1.0M | 3.19 |
|
|
| Transmedics Group (TMDX) | 0.2 | $3.2M | NEW | 48k | 67.28 |
|
| Ranpak Holdings Corp Com Cl A (PACK) | 0.2 | $3.1M | NEW | 574k | 5.42 |
|
| Similarweb SHS (SMWB) | 0.2 | $3.1M | +30% | 370k | 8.27 |
|
| Natera (NTRA) | 0.2 | $2.9M | -46% | 21k | 141.41 |
|
| Remitly Global (RELY) | 0.2 | $2.6M | -81% | 127k | 20.80 |
|
| Everquote Com Cl A (EVER) | 0.2 | $2.6M | NEW | 101k | 26.19 |
|
| Forrester Research (FORR) | 0.2 | $2.6M | +11% | 280k | 9.24 |
|
| Semtech Corporation (SMTC) | 0.2 | $2.4M | -89% | 69k | 34.40 |
|
| Microsoft Corporation (MSFT) | 0.2 | $2.2M | -15% | 5.8k | 375.39 |
|
| Genes (GCO) | 0.1 | $1.9M | -80% | 89k | 21.23 |
|
| Bluelinx Hldgs Com New (BXC) | 0.1 | $1.8M | -30% | 24k | 74.98 |
|
| Casella Waste Sys Cl A (CWST) | 0.1 | $1.7M | 15k | 111.51 |
|
|
| Oracle Corporation (ORCL) | 0.1 | $1.4M | -87% | 9.8k | 139.81 |
|
| Alphabet Cap Stk Cl C (GOOG) | 0.1 | $995k | +25% | 6.4k | 156.23 |
|
| Orthopediatrics Corp. (KIDS) | 0.1 | $851k | -83% | 35k | 24.63 |
|
| Skyline Corporation (SKY) | 0.1 | $850k | 9.0k | 94.76 |
|
|
| Vertiv Holdings Com Cl A (VRT) | 0.0 | $595k | -89% | 8.2k | 72.20 |
|
| Primoris Services (PRIM) | 0.0 | $588k | -90% | 10k | 57.41 |
|
| Reddit Cl A (RDDT) | 0.0 | $512k | -96% | 4.9k | 104.90 |
|
| Sportsmans Whse Hldgs (SPWH) | 0.0 | $236k | -89% | 237k | 0.99 |
|
| Puretech Health Ads (PRTC) | 0.0 | $235k | NEW | 12k | 19.78 |
|
Past Filings by Portolan Capital Management
SEC 13F filings are viewable for Portolan Capital Management going back to 2010
- Portolan Capital Management 2025 Q1 filed May 15, 2025
- Portolan Capital Management 2024 Q4 filed Feb. 13, 2025
- Portolan Capital Management 2024 Q3 filed Nov. 14, 2024
- Portolan Capital Management 2024 Q2 filed Aug. 14, 2024
- Portolan Capital Management 2024 Q1 filed May 15, 2024
- Portolan Capital Management 2023 Q4 filed Feb. 14, 2024
- Portolan Capital Management 2023 Q3 filed Nov. 14, 2023
- Portolan Capital Management 2023 Q2 filed Aug. 14, 2023
- Portolan Capital Management 2023 Q1 filed May 15, 2023
- Portolan Capital Management 2022 Q4 filed Feb. 13, 2023
- Portolan Capital Management 2022 Q3 filed Nov. 14, 2022
- Portolan Capital Management 2022 Q2 filed Aug. 15, 2022
- Portolan Capital Management 2022 Q1 filed May 16, 2022
- Portolan Capital Management 2021 Q4 filed Feb. 14, 2022
- Portolan Capital Management 2021 Q3 filed Nov. 15, 2021
- Portolan Capital Management 2021 Q2 filed Aug. 16, 2021