$499 Million is the total value of Portolan Capital Management's 106 reported holdings in Q4 2014. The portfolio turnover from Q3 2014 to Q4 2014 was 86.5% .
| Value | Shares | ↓ Weighting | ||||||
|---|---|---|---|---|---|---|---|---|
| GT | Buy | THE GOODYEAR TIRE & RUBBER CO. CMN | $15,737,000 | +71.0% | 550,820 | +35.2% | 3.15% | +50.8% |
| ODP | Buy | OFFICE DEPOT INC CMN | $15,355,000 | +113.6% | 1,790,642 | +28.0% | 3.08% | +88.4% |
| ANIK | Buy | ANIKA THERAPEUTICS INC CMN | $12,553,000 | +35.4% | 308,131 | +21.9% | 2.51% | +19.4% |
| OSTK | Buy | OVERSTOCK.COM INC DEL CMN | $11,831,000 | +164.8% | 487,488 | +84.0% | 2.37% | +133.5% |
| HHC | Buy | THE HOWARD HUGHES CORP CMN | $11,371,000 | +19.4% | 87,189 | +37.3% | 2.28% | +5.3% |
| RCII | Buy | RENT-A-CENTER INC CMN | $11,125,000 | +115.9% | 306,318 | +80.5% | 2.23% | +90.4% |
| ABMD | Sell | ABIOMED INC CMN | $10,790,000 | +6.2% | 283,507 | -30.7% | 2.16% | -6.4% |
| MERC | Buy | MERCER INTERNATIONAL INC CMN | $10,311,000 | +230.6% | 838,976 | +162.2% | 2.06% | +191.7% |
| SQNM | Buy | SEQUENOM INC CMN | $10,103,000 | +393.1% | 2,730,472 | +295.8% | 2.02% | +335.3% |
| CWST | Buy | CASELLA WASTE SYSTEMS INC CLASS A | $9,992,000 | +65.3% | 2,473,288 | +57.5% | 2.00% | +45.7% |
| NEWM | Buy | NEW MEDIA INVESTMENT GROUP INC*. CMN | $9,602,000 | +125.0% | 406,360 | +58.4% | 1.92% | +98.5% |
| RH | New | RESTORATION HARDWARE HLDGS INC CMN | $9,343,000 | – | 97,316 | +100.0% | 1.87% | – |
| SQI | Buy | SCIQUEST, INC. CMN | $8,991,000 | +81.3% | 622,205 | +88.7% | 1.80% | +59.8% |
| CALD | Sell | CALLIDUS SOFTWARE INC CMN | $8,430,000 | -22.5% | 516,231 | -43.0% | 1.69% | -31.7% |
| AXL | Buy | AMERICAN AXLE & MFG HOLDINGS INC | $8,199,000 | +85.0% | 362,934 | +37.3% | 1.64% | +63.1% |
| DECK | New | DECKERS OUTDOORS CORP CMN | $8,120,000 | – | 89,196 | +100.0% | 1.63% | – |
| SFLY | Buy | SHUTTERFLY, INC. CMN | $8,010,000 | +93.8% | 192,103 | +126.6% | 1.60% | +70.8% |
| LOCK | Buy | LIFELOCK, INC. CMN | $7,758,000 | +76.6% | 419,118 | +36.3% | 1.55% | +55.7% |
| EA | Sell | ELECTRONIC ARTS CMN | $7,712,000 | +5.0% | 164,037 | -20.5% | 1.54% | -7.4% |
| OSUR | New | ORASURE TECHNOLOGIES INC CMN | $7,616,000 | – | 751,081 | +100.0% | 1.53% | – |
| NUS | Buy | NU SKIN ENTERPRISES INC CMN CLASS A | $7,349,000 | +60.3% | 168,178 | +65.2% | 1.47% | +41.4% |
| NWSA | New | NEWS CORPORATION CMN SERIES CLASS A | $7,123,000 | – | 453,981 | +100.0% | 1.43% | – |
| MACK | Buy | MERRIMACK PHARMACEUTICALS INC CMN | $6,862,000 | +84.8% | 607,288 | +43.6% | 1.38% | +62.9% |
| TPH | New | TRI POINTE HOMES INC CMN | $6,801,000 | – | 445,984 | +100.0% | 1.36% | – |
| BBRG | Buy | BRAVO BRIO RESTAURANT GROUP IN CMN | $6,531,000 | +59.8% | 469,508 | +49.0% | 1.31% | +40.8% |
| AVGTF | Buy | AVG TECHNOLOGIES N.V. CMN | $6,277,000 | +183.5% | 317,993 | +138.1% | 1.26% | +149.9% |
| SREV | New | SERVICESOURCE INTRNTNL, LLC CMN | $6,233,000 | – | 1,331,791 | +100.0% | 1.25% | – |
| MWW | Buy | MONSTER WORLDWIDE INC. CMN | $6,237,000 | +149.9% | 1,349,972 | +197.4% | 1.25% | +120.3% |
| TAST | Buy | CARROLS RESTAURANT GROUP INC CMN | $5,924,000 | +34.4% | 776,371 | +25.2% | 1.19% | +18.6% |
| BKD | Sell | BROOKDALE SENIOR LIVING, INC. CMN | $5,855,000 | -15.7% | 159,680 | -26.0% | 1.17% | -25.7% |
| GRPN | New | GROUPON INC CMN CLASS A | $5,732,000 | – | 693,937 | +100.0% | 1.15% | – |
| HTZ | New | HERTZ GLOBAL HOLDINGS, INC. CMN | $5,723,000 | – | 229,483 | +100.0% | 1.15% | – |
| EGHT | New | 8X8 INC CMN | $5,652,000 | – | 617,057 | +100.0% | 1.13% | – |
| MODN | Sell | MODEL N, INC. CMN | $5,441,000 | +3.8% | 512,355 | -3.6% | 1.09% | -8.5% |
| SAAS | Buy | INCONTACT, INC. CMN | $5,193,000 | +33.8% | 590,801 | +32.3% | 1.04% | +17.9% |
| ACAT | New | ARCTIC CAT INC CMN | $5,065,000 | – | 142,662 | +100.0% | 1.02% | – |
| CTRN | New | CITI TRENDS, INC. CMN | $5,069,000 | – | 200,767 | +100.0% | 1.02% | – |
| LGF | Sell | LIONS GATE ENTERTAINMENT CORP CMN | $5,029,000 | -31.9% | 157,044 | -29.9% | 1.01% | -40.0% |
| CAR | New | AVIS BUDGET GROUP, INC. CMN | $5,021,000 | – | 75,698 | +100.0% | 1.01% | – |
| DWCH | Buy | DATAWATCH CORP CMN | $4,919,000 | +131.6% | 547,169 | +164.0% | 0.98% | +104.4% |
| AHC | Sell | A. H. BELO CORPORATION CMN SERIES A | $4,866,000 | -24.0% | 468,818 | -21.9% | 0.98% | -33.0% |
| BRDR | New | BORDERFREE, INC. CMN | $4,818,000 | – | 537,759 | +100.0% | 0.96% | – |
| ACAD | Buy | ACADIA PHARMACEUTICALS INC. CMN | $4,772,000 | +228.7% | 150,293 | +156.3% | 0.96% | +189.7% |
| LIOX | Buy | LIONBRIDGE TECHNOLOGIES INC CMN | $4,698,000 | +139.4% | 816,958 | +87.4% | 0.94% | +111.0% |
| DSW | Buy | DSW INC. CMN CLASS A | $4,630,000 | +209.3% | 124,126 | +149.7% | 0.93% | +172.6% |
| CSU | Buy | CAPITAL SENIOR LIVING CORP CMN | $4,531,000 | +33.5% | 181,898 | +13.8% | 0.91% | +17.8% |
| HMSY | Sell | HMSC HOLDINGS CORP. CMN | $4,500,000 | -22.7% | 212,864 | -31.1% | 0.90% | -31.9% |
| MTOR | New | MERITOR INC CMN | $4,411,000 | – | 291,145 | +100.0% | 0.88% | – |
| CRY | Buy | CRYOLIFE INC CMN | $4,279,000 | +147.6% | 377,629 | +115.7% | 0.86% | +118.6% |
| TNGO | New | TANGOE INC CMN | $4,181,000 | – | 320,895 | +100.0% | 0.84% | – |
| R | New | RYDER SYSTEM INC CMN | $4,063,000 | – | 43,760 | +100.0% | 0.81% | – |
| LL | New | LUMBER LIQUIDATORS HOLDINGS IN*C CMN | $4,037,000 | – | 60,879 | +100.0% | 0.81% | – |
| EEFT | Sell | EURONET WORLDWIDE INC CMN | $3,839,000 | -12.9% | 69,929 | -24.2% | 0.77% | -23.2% |
| JOBS | New | 51JOB, INC. ADR CMN | $3,819,000 | – | 106,517 | +100.0% | 0.76% | – |
| PIR | New | PIER 1 IMPORTS INC (DELAWARE) CMN | $3,805,000 | – | 247,088 | +100.0% | 0.76% | – |
| GCI | Sell | GANNETT CO.INC. CMN | $3,708,000 | -57.2% | 116,128 | -60.2% | 0.74% | -62.2% |
| AAN | New | AARON RENTS INC A CMN | $3,687,000 | – | 120,593 | +100.0% | 0.74% | – |
| COVS | Buy | COVISINT CORPORATION CMN | $3,595,000 | +234.4% | 1,356,535 | +423.7% | 0.72% | +195.1% |
| FRGI | Sell | FIESTA RESTAURANT GROUP, INC. CMN | $3,579,000 | -26.7% | 58,871 | -40.1% | 0.72% | -35.3% |
| VG | Sell | VONAGE HOLDINGS CORP. CMN | $3,384,000 | -40.6% | 888,220 | -48.9% | 0.68% | -47.6% |
| WGO | New | WINNEBAGO INDUSTRIES INC CMN | $3,276,000 | – | 150,531 | +100.0% | 0.66% | – |
| SFS | New | SMART & FINAL STORES, INC. CMN | $3,225,000 | – | 205,049 | +100.0% | 0.65% | – |
| SSYS | New | STRATASYS LTD CMN | $3,192,000 | – | 38,408 | +100.0% | 0.64% | – |
| FCAU | New | FIAT CHRYSLER AUTOMOBILES N V CMN | $3,160,000 | – | 272,926 | +100.0% | 0.63% | – |
| AON | New | AON PLC CMN | $3,024,000 | – | 31,887 | +100.0% | 0.61% | – |
| CCOI | Buy | COGENT COMMUNICATIONS HLDGS CMN | $2,954,000 | +8.2% | 83,481 | +2.7% | 0.59% | -4.5% |
| MU | New | MICRON TECHNOLOGY, INC. CMN | $2,938,000 | – | 83,912 | +100.0% | 0.59% | – |
| TEN | New | TENNECO INC CMN | $2,901,000 | – | 51,253 | +100.0% | 0.58% | – |
| KFX | Sell | KOFAX LIMITED CMN | $2,842,000 | -46.0% | 404,280 | -40.6% | 0.57% | -52.4% |
| SLH | New | SOLERA HOLDINGS INC CMN | $2,807,000 | – | 54,847 | +100.0% | 0.56% | – |
| TSO | Sell | TESORO CORPORATION CMN | $2,788,000 | -68.5% | 37,494 | -74.2% | 0.56% | -72.3% |
| STX | Sell | SEAGATE TECHNOLOGY PLC CMN | $2,733,000 | -41.8% | 41,104 | -49.9% | 0.55% | -48.7% |
| CAB | Sell | CABELA'S INCORPORATED CMN CLASS A | $2,702,000 | -14.1% | 51,253 | -4.1% | 0.54% | -24.3% |
| ZU | New | ZULILY INC. CMN CLASS A | $2,695,000 | – | 115,155 | +100.0% | 0.54% | – |
| IRGTQ | New | IGNITE RESTAURANT GROUP INC CMN | $2,688,000 | – | 341,530 | +100.0% | 0.54% | – |
| DXLG | Sell | DESTINATION XL GROUP, INC. CMN | $2,677,000 | -52.3% | 490,343 | -58.8% | 0.54% | -58.0% |
| MYGN | New | MYRIAD GENETICS INC CMN | $2,576,000 | – | 75,623 | +100.0% | 0.52% | – |
| XOXO | New | XO GROUP INC CMN | $2,456,000 | – | 134,877 | +100.0% | 0.49% | – |
| KMX | Sell | CARMAX, INC. CMN | $2,393,000 | -1.8% | 35,945 | -31.4% | 0.48% | -13.4% |
| DESTQ | New | DESTINATION MATERNITY CORPORAT*ION CMN | $2,322,000 | – | 145,569 | +100.0% | 0.46% | – |
| TRC | New | TEJON RANCH CO CMN | $2,284,000 | – | 77,535 | +100.0% | 0.46% | – |
| WEB | Sell | WEB.COM GROUP, INC CMN | $2,254,000 | -74.7% | 118,710 | -73.4% | 0.45% | -77.7% |
| W | New | WAYFAIR INC. CMN | $2,245,000 | – | 113,082 | +100.0% | 0.45% | – |
| 3106PS | New | DELPHI AUTOMOTIVE PLC CMN | $2,231,000 | – | 30,682 | +100.0% | 0.45% | – |
| TUESQ | Sell | TUESDAY MORNING CORP CMN | $2,229,000 | -3.9% | 102,741 | -14.1% | 0.45% | -15.4% |
| PRO | New | PROS HOLDINGS, INC. CMN | $2,150,000 | – | 78,240 | +100.0% | 0.43% | – |
| ASPS | Buy | ALTISOURCE PORTFOLIO SOL S.A. CMN | $2,129,000 | -4.9% | 62,994 | +183.6% | 0.43% | -16.3% |
| BECN | New | BEACON ROOFING SUPPLY, INC. CMN | $2,047,000 | – | 73,633 | +100.0% | 0.41% | – |
| UIS | Sell | UNISYS CORPORATION CMN | $2,009,000 | -68.8% | 68,162 | -75.2% | 0.40% | -72.5% |
| RESI | Sell | ALTISOURCE RESIDENTIAL CORPORA*TION CMN | $1,995,000 | -72.4% | 102,813 | -65.9% | 0.40% | -75.7% |
| TRCO | New | TRIBUNE MEDIA CO - A CMN CLASS A | $1,950,000 | – | 32,633 | +100.0% | 0.39% | – |
| GUID | Buy | GUIDANCE SOFTWARE INC. CMN | $1,779,000 | +233.1% | 245,383 | +209.2% | 0.36% | +194.2% |
| ULTA | Sell | ULTA SALON COSMETICS & FRAGRAN*CE INC. CMN | $1,567,000 | -76.6% | 12,256 | -78.3% | 0.31% | -79.3% |
| TMHC | New | TAYLOR MORRISON HOME CORP. CMN | $1,543,000 | – | 81,677 | +100.0% | 0.31% | – |
| WLK | New | WESTLAKE CHEMICAL CORPORATION CMN | $1,343,000 | – | 21,990 | +100.0% | 0.27% | – |
| MEOH | New | METHANEX CORPORATION CMN | $1,285,000 | – | 28,049 | +100.0% | 0.26% | – |
| FB | FACEBOOK, INC. CMN CLASS A | $1,220,000 | -1.3% | 15,636 | 0.0% | 0.24% | -13.2% | |
| STMP | Sell | STAMPS COM INC CMN | $1,213,000 | -51.3% | 25,274 | -67.8% | 0.24% | -57.1% |
| QLYS | Sell | QUALYS INC CMN | $1,139,000 | -71.9% | 30,176 | -80.2% | 0.23% | -75.2% |
| BRCM | Sell | BROADCOM CORP CL-A CMN CLASS A | $1,076,000 | -48.5% | 24,834 | -51.9% | 0.22% | -54.4% |
| SCVL | New | SHOE CARNIVAL INC CMN | $1,069,000 | – | 41,600 | +100.0% | 0.21% | – |
| FVE | New | FIVE STAR QUALITY CARE INC CMN | $787,000 | – | 189,654 | +100.0% | 0.16% | – |
| VRTU | Sell | VIRTUSA CORPORATION CMN | $606,000 | -73.1% | 14,543 | -77.1% | 0.12% | -76.4% |
| TTSH | New | TILE SHOP HLDGS INC CMN | $246,000 | – | 27,729 | +100.0% | 0.05% | – |
| SALM | Sell | SALEM COMMUNICATIONS CL-A CMN CLASS A | $166,000 | -95.5% | 21,260 | -95.6% | 0.03% | -96.0% |
| AXAS | New | ABRAXAS PETROLEUM CORPORATION CMN | $137,000 | – | 46,677 | +100.0% | 0.03% | – |
| RF | Exit | REGIONS FINANCIAL CORPORATION | $0 | – | -13,263 | -100.0% | -0.03% | – |
| QLTY | Exit | QUALITY DISTRIBUTION, INC. | $0 | – | -15,611 | -100.0% | -0.04% | – |
| AA | Exit | ALCOA, INC. | $0 | – | -15,570 | -100.0% | -0.06% | – |
| EQIX | Exit | EQUINIX, INC. | $0 | – | -1,334 | -100.0% | -0.06% | – |
| MED | Exit | MEDIFAST, INC. | $0 | – | -14,606 | -100.0% | -0.11% | – |
| RATE | Exit | BANKRATE, INC. | $0 | – | -58,361 | -100.0% | -0.15% | – |
| CLH | Exit | CLEAN HARBORS, INC. | $0 | – | -17,681 | -100.0% | -0.22% | – |
| CENT | Exit | CENTRAL GARDEN & PET CO. | $0 | – | -155,440 | -100.0% | -0.27% | – |
| S | Exit | SPRINT CORPORATION | $0 | – | -204,982 | -100.0% | -0.30% | – |
| CAI | Exit | CAI INTERNATIONAL, INC. | $0 | – | -67,496 | -100.0% | -0.30% | – |
| PFMT | Exit | PERFORMANT FINANCIAL CORPORATION | $0 | – | -166,088 | -100.0% | -0.30% | – |
| KOG | Exit | KODIAK OIL & GAS CORPORATION | $0 | – | -99,870 | -100.0% | -0.31% | – |
| STKL | Exit | SUNOPTA, INC. | $0 | – | -116,429 | -100.0% | -0.32% | – |
| TACT | Exit | TRANSACT TECHNOLOGIES, INC. | $0 | – | -216,233 | -100.0% | -0.33% | – |
| ECPG | Exit | ENCORE CAPITAL GROUP, INC. | $0 | – | -33,492 | -100.0% | -0.34% | – |
| DMD | Exit | DEMAND MEDIA, INC. | $0 | – | -176,947 | -100.0% | -0.36% | – |
| RALY | Exit | RALLY SOFTWARE DEVELOPMENT CORPORATION | $0 | – | -130,376 | -100.0% | -0.36% | – |
| SIGI | Exit | SELECTIVE INSURANCE GROUP, INC. | $0 | – | -82,361 | -100.0% | -0.41% | – |
| FLWS | Exit | 1-800-FLOWERS.COM | $0 | – | -257,926 | -100.0% | -0.42% | – |
| NAVI | Exit | NAVIENT CORPORATION | $0 | – | -111,606 | -100.0% | -0.45% | – |
| OXM | Exit | OXFORD INDUSTRIES, INC. | $0 | – | -35,468 | -100.0% | -0.49% | – |
| RDEN | Exit | ELIZABETH ARDEN, INC. | $0 | – | -140,555 | -100.0% | -0.53% | – |
| UBNT | Exit | UBIQUITI NETWORKS, INC. | $0 | – | -64,382 | -100.0% | -0.55% | – |
| UFS | Exit | DOMTAR CORPORATION | $0 | – | -68,869 | -100.0% | -0.55% | – |
| PQ | Exit | PETROQUEST ENERGY, INC. | $0 | – | -441,429 | -100.0% | -0.56% | – |
| CSTM | Exit | CONSTELLIUM HOLDINGS CO. | $0 | – | -101,125 | -100.0% | -0.56% | – |
| HRB | Exit | H & R BLOCK, INC. | $0 | – | -91,386 | -100.0% | -0.64% | – |
| CNSI | Exit | COMVERSE, INC. | $0 | – | -130,948 | -100.0% | -0.66% | – |
| MTDR | Exit | MATADOR RESOURCES CO. | $0 | – | -124,582 | -100.0% | -0.73% | – |
| NDLS | Exit | NOODLES AND CO. | $0 | – | -175,650 | -100.0% | -0.77% | – |
| CTXS | Exit | CITRIX SYSTEMS, INC. | $0 | – | -57,524 | -100.0% | -0.93% | – |
| THOR | Exit | THORATEC CORPORATION | $0 | – | -158,956 | -100.0% | -0.96% | – |
| INFA | Exit | INFORMATICA CORPORATON | $0 | – | -130,351 | -100.0% | -1.01% | – |
| CHD | Exit | CHURCH & DWIGHT CO., INC. | $0 | – | -64,842 | -100.0% | -1.03% | – |
| AAL | Exit | AMERICAN AIRLINES GROUP, INC. | $0 | – | -130,109 | -100.0% | -1.05% | – |
| TRN | Exit | TRINITY INDUSTRIES, INC. | $0 | – | -105,679 | -100.0% | -1.12% | – |
| AAOI | Exit | APPLIED OPTOELECTRONICS, INC. | $0 | – | -307,350 | -100.0% | -1.12% | – |
| ARII | Exit | AMERICAN RAILCAR INDUSTRIES, INC. | $0 | – | -69,121 | -100.0% | -1.16% | – |
| AGM | Exit | FEDERAL AGRICULTURAL MORTGAGE CORPORATION | $0 | – | -164,444 | -100.0% | -1.20% | – |
| SM | Exit | SM ENERGY COMPANY | $0 | – | -67,992 | -100.0% | -1.20% | – |
| BIO | Exit | BIO-RAD LABORATORIES, INC. | $0 | – | -51,339 | -100.0% | -1.32% | – |
| NOG | Exit | NORTHERN OIL AND GAS, INC. | $0 | – | -443,079 | -100.0% | -1.43% | – |
| WLL | Exit | WHITING PETROLEUM CORPORATION | $0 | – | -99,851 | -100.0% | -1.76% | – |
| MOVE | Exit | MOVE, INC. | $0 | – | -1,909,084 | -100.0% | -9.09% | – |
Original filings
The following EDGAR filing(s) were analyzed to create this report:
- View 13F-HR filed 2015-02-11
About Portolan Capital Management
Portolan Capital Management is a New York-based investment management firm that specializes in long/short equity strategies. The firm was founded in 2002 by George McCabe, who serves as the Chief Investment Officer. McCabe has over 30 years of experience in the investment industry, having previously worked at firms such as Goldman Sachs and J.P. Morgan.
Portolan's investment philosophy is based on fundamental research and a disciplined approach to risk management. The firm's investment team conducts extensive research on companies and industries to identify undervalued securities with strong growth potential. They also use a variety of quantitative tools to manage risk and optimize portfolio construction.
In addition to McCabe, Portolan's leadership team includes Chief Operating Officer Michael McCabe and Chief Financial Officer John McCabe. The firm has a team of experienced investment professionals who work together to manage the firm's portfolios.
Portolan's investment strategies have delivered strong performance over the years, with a focus on generating alpha through stock selection and risk management. The firm's long/short equity strategy has consistently outperformed its benchmark, with a track record of strong risk-adjusted returns.
Overall, Portolan Capital Management is a well-respected investment management firm with a strong track record of delivering value to its clients. With a focus on fundamental research and disciplined risk management, the firm is well-positioned to continue delivering strong performance in the years ahead.
It's important to note that this information is for educational purposes only and has not been fact-checked. As with any investment, it's important to do your own research and consult with a financial advisor before making any investment decisions.
Top long-term holdings
| Name | Quarters owned | Latest quarter owned | Max weighting |
|---|---|---|---|
| CASELLA WASTE SYSTEMS, INC. CLASS A | 42 | Q3 2023 | 5.3% |
| META PLATFORMS, INC. | 41 | Q3 2023 | 2.0% |
| ABIOMED INC CMN | 38 | Q3 2022 | 2.9% |
| ANIKA THERAPEUTICS INC CMN | 36 | Q2 2023 | 2.8% |
| BIO-RAD LABORATORIES, INC. | 34 | Q3 2023 | 3.5% |
| EURONET WORLDWIDE INC CMN | 32 | Q4 2022 | 3.9% |
| ALPHABET, INC. | 32 | Q3 2023 | 3.3% |
| SKECHERS USA, INC. | 31 | Q3 2023 | 2.9% |
| QUALYS INC CMN | 30 | Q4 2022 | 2.6% |
| ELECTRONIC ARTS, INC. | 29 | Q4 2022 | 2.2% |
View Portolan Capital Management's complete holdings history.
Latest significant ownerships (13-D/G)
| Filed | Shares | Percentage | |
|---|---|---|---|
| ALTA EQUIPMENT GROUP INC. | February 13, 2023 | 572,246 | 1.8% |
| Charah Solutions, Inc. | February 13, 2023 | 166,819 | 5.0% |
| FULL HOUSE RESORTS INC | February 13, 2023 | 407,452 | 1.2% |
| HARVARD BIOSCIENCE INC | February 13, 2023 | 1,054,300 | 2.5% |
| LANTRONIX INC | February 13, 2023 | 691,118 | 1.9% |
| RICHARDSON ELECTRONICS, LTD. | February 13, 2023 | 484,632 | 4.0% |
| Charah Solutions, Inc. | November 22, 2022 | 1,782,052 | 5.3% |
| APPLIED GENETIC TECHNOLOGIES CORP | February 15, 2022 | 2,218,188 | 5.2% |
| AEMETIS, INC | February 11, 2022 | 106,090 | 0.3% |
| BlueLinx Holdings Inc. | February 11, 2022 | 451,793 | 4.6% |
View Portolan Capital Management's complete significant-ownership history.
Latest filings
| Type | Filed |
|---|---|
| SC 13G | 2024-03-14 |
| 13F-HR | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G | 2023-12-18 |
| 13F-HR | 2023-11-14 |
View Portolan Capital Management's complete filings history.
All filings
- Holdings (13F-HR)
- Significant ownership (13-D/G)
- Insider transactions (4, 5, 6)
- Events (8-K)
- Shareholder votes (proxy)
View complete filings history.