$743 Million is the total value of Portolan Capital Management's 125 reported holdings in Q4 2016. The portfolio turnover from Q3 2016 to Q4 2016 was 64.2% .
| Value | Shares | ↓ Weighting | ||||||
|---|---|---|---|---|---|---|---|---|
| CWST | Sell | CASELLA WASTE SYSTEMS, INC. | $37,391,000 | -3.7% | 3,012,984 | -20.1% | 5.03% | -5.6% |
| STMP | Buy | STAMPS.COM, INC. | $28,598,000 | +30.8% | 249,436 | +7.8% | 3.85% | +28.3% |
| CALD | Buy | CALLIDUS SOFTWARE, INC. | $22,766,000 | +29.4% | 1,355,137 | +41.4% | 3.06% | +27.0% |
| GOOG | Sell | ALPHABET, INC. | $19,130,000 | -6.0% | 24,786 | -5.3% | 2.58% | -7.7% |
| NXTM | Buy | NXSTAGE MEDICAL, INC. | $15,104,000 | +13.6% | 576,263 | +8.3% | 2.03% | +11.5% |
| BIO | Sell | BIO-RAD LABORATORIES, INC. | $14,402,000 | -18.2% | 79,009 | -26.5% | 1.94% | -19.8% |
| WOOF | Buy | VCA, INC. | $13,110,000 | +37.8% | 190,971 | +40.5% | 1.76% | +35.1% |
| GSM | Buy | FERROGLOBE, PLC | $12,963,000 | +80.9% | 1,196,926 | +50.9% | 1.74% | +77.5% |
| SKX | Buy | SKECHERS USA, INC. | $12,879,000 | +295.4% | 523,967 | +268.4% | 1.73% | +287.9% |
| GT | Buy | THE GOODYEAR TIRE & RUBBER CO. | $12,394,000 | +11.5% | 401,496 | +16.6% | 1.67% | +9.4% |
| CRCM | Buy | CARE.COM, INC. | $12,212,000 | +5.9% | 1,424,957 | +23.1% | 1.64% | +3.9% |
| EEFT | Sell | EURONET WORLDWIDE, INC. | $11,961,000 | -40.2% | 165,144 | -32.4% | 1.61% | -41.3% |
| HDP | Buy | HORTONWORKS, INC. | $11,871,000 | +100.4% | 1,428,555 | +101.3% | 1.60% | +96.6% |
| UIS | New | UNISYS CORPORATION | $11,753,000 | – | 786,137 | +100.0% | 1.58% | – |
| UTHR | Buy | UNITED THERAPEUTICS CORPORATION | $11,606,000 | +112.4% | 80,916 | +74.8% | 1.56% | +108.4% |
| MTDR | New | MATADOR RESOURCES COMPANY | $11,085,000 | – | 430,303 | +100.0% | 1.49% | – |
| GPORQ | Buy | GULFPORT ENERGY CORPORATION | $10,137,000 | +109.9% | 468,458 | +174.1% | 1.36% | +105.9% |
| GDDY | Sell | GODADDY, INC. | $9,921,000 | -23.7% | 283,857 | -24.6% | 1.34% | -25.2% |
| RESI | Buy | ALTISOURCE RESIDENTIAL CORPORATION | $9,203,000 | +43.9% | 833,584 | +42.1% | 1.24% | +41.1% |
| BOX | Buy | BOX, INC. | $9,076,000 | +72.7% | 654,809 | +96.4% | 1.22% | +69.5% |
| FRGI | Sell | FIESTA RESTAURANT GROUP, INC. | $8,922,000 | +7.2% | 298,883 | -13.8% | 1.20% | +5.1% |
| SLM | Sell | SLM CORPORATION | $8,838,000 | -27.8% | 801,990 | -51.1% | 1.19% | -29.2% |
| VG | Sell | VONAGE HOLDINGS CORP. | $8,373,000 | -66.1% | 1,222,382 | -67.3% | 1.13% | -66.8% |
| SQ | Buy | SQUARE, INC. | $8,197,000 | +163.7% | 601,417 | +125.6% | 1.10% | +158.5% |
| CF | Sell | CF INDUSTRIES HOLDINGS, INC. | $8,137,000 | +18.4% | 258,473 | -8.4% | 1.10% | +16.2% |
| RNG | Sell | RINGCENTRAL, INC. | $8,075,000 | -70.9% | 391,995 | -66.6% | 1.09% | -71.5% |
| PYPL | New | PAYPAL HOLDINGS, INC. | $7,712,000 | – | 195,378 | +100.0% | 1.04% | – |
| JCOM | Sell | J2 GLOBAL, INC. | $7,641,000 | -34.8% | 93,414 | -46.9% | 1.03% | -36.0% |
| INST | Buy | INSTRUCTURE, INC. | $7,493,000 | +160.4% | 383,269 | +238.0% | 1.01% | +155.4% |
| NOMD | Sell | NOMAD FOODS LTD. | $7,422,000 | -37.7% | 775,505 | -23.1% | 1.00% | -38.9% |
| ADBE | Buy | ADOBE SYSTEMS, INC. | $7,352,000 | +195.1% | 71,410 | +211.1% | 0.99% | +189.5% |
| EWBC | New | EAST WEST BANCORP, INC. | $7,213,000 | – | 141,904 | +100.0% | 0.97% | – |
| CARB | Buy | CARBONITE, INC. | $7,170,000 | +111.7% | 437,197 | +98.2% | 0.96% | +107.5% |
| PBF | New | PBF ENERGY, INC. | $6,999,000 | – | 251,040 | +100.0% | 0.94% | – |
| WIX | Buy | WIX .COM LTD. | $6,910,000 | +8.6% | 155,097 | +5.9% | 0.93% | +6.5% |
| CFG | New | CITIZENS FINANCIAL GROUP, INC. | $6,860,000 | – | 192,532 | +100.0% | 0.92% | – |
| AXAS | Sell | ABRAXAS PETROLEUM CORPORATION | $6,866,000 | -34.7% | 2,671,435 | -57.1% | 0.92% | -36.0% |
| REN | Sell | RESOLUTE ENERGY CORPORATION | $6,764,000 | -15.1% | 164,206 | -46.3% | 0.91% | -16.7% |
| ETFC | New | E TRADE FINANCIAL CORPORATION | $6,694,000 | – | 193,177 | +100.0% | 0.90% | – |
| SYRG | New | SYNERGY RESOURCES CORPORATION | $6,530,000 | – | 732,880 | +100.0% | 0.88% | – |
| WTFC | New | WINTRUST FINANCIAL CORPORATION | $6,418,000 | – | 88,432 | +100.0% | 0.86% | – |
| DXLG | Sell | DESTINATION XL GROUP, INC. | $6,374,000 | -1.8% | 1,499,653 | -0.0% | 0.86% | -3.7% |
| SIVB | New | SVB FINANCIAL GROUP | $6,337,000 | – | 36,916 | +100.0% | 0.85% | – |
| EGHT | Sell | 8X8, INC. | $6,331,000 | -44.7% | 442,753 | -40.3% | 0.85% | -45.8% |
| CSU | Sell | CAPITAL SENIOR LIVING CORPORATION | $6,145,000 | -21.1% | 382,860 | -17.4% | 0.83% | -22.6% |
| XOXO | Sell | XO GROUP, INC. | $6,135,000 | -21.3% | 315,432 | -21.8% | 0.83% | -22.8% |
| KS | New | KAPSTONE PAPER AND PACKAGING CORPORATION | $6,055,000 | – | 274,619 | +100.0% | 0.82% | – |
| FB | Sell | FACEBOOK, INC. | $6,001,000 | -19.6% | 52,156 | -10.4% | 0.81% | -21.2% |
| ATRC | Buy | ATRICURE, INC. | $5,824,000 | +47.6% | 297,592 | +19.3% | 0.78% | +44.6% |
| ABMD | Buy | ABIOMED, INC. | $5,798,000 | +46.0% | 51,456 | +66.6% | 0.78% | +43.3% |
| ASC | Buy | ARDMORE SHIPPING CORPORATION | $5,782,000 | +215.3% | 781,326 | +199.9% | 0.78% | +208.7% |
| TROX | New | TRONOX LIMITED | $5,592,000 | – | 542,388 | +100.0% | 0.75% | – |
| TCF | New | TCF FINANCIAL CORPORATION | $5,481,000 | – | 279,784 | +100.0% | 0.74% | – |
| URI | New | UNITED RENTALS, INC. | $5,444,000 | – | 51,563 | +100.0% | 0.73% | – |
| MTCH | Sell | MATCH GROUP, INC. | $5,440,000 | -32.2% | 318,152 | -29.5% | 0.73% | -33.6% |
| FIVN | Sell | FIVE9 INC. CMN | $5,339,000 | -14.1% | 376,260 | -5.1% | 0.72% | -15.7% |
| UBS | New | UBS GROUP AG | $5,272,000 | – | 336,415 | +100.0% | 0.71% | – |
| HUBS | Buy | HUBSPOT, INC. | $5,274,000 | +42.0% | 112,204 | +74.1% | 0.71% | +39.2% |
| EBIX | Buy | EBIX, INC. | $5,172,000 | +25.5% | 90,662 | +25.1% | 0.70% | +23.0% |
| CTB | New | COOPER TIRE & RUBBER COMPANY | $5,045,000 | – | 129,853 | +100.0% | 0.68% | – |
| IPHI | Sell | INPHI CORPORATION | $5,014,000 | -12.6% | 112,370 | -14.8% | 0.68% | -14.3% |
| OCLR | Buy | OCLARO, INC. | $5,008,000 | +181.2% | 559,513 | +168.5% | 0.67% | +176.2% |
| VOYA | New | VOYA FINANCIAL, INC. | $5,002,000 | – | 127,535 | +100.0% | 0.67% | – |
| ABTL | Sell | AUTOBYTEL, INC. | $4,922,000 | -24.5% | 365,961 | -0.0% | 0.66% | -25.8% |
| CFMS | Sell | CONFORMIS, INC. | $4,919,000 | -40.5% | 607,283 | -27.2% | 0.66% | -41.7% |
| FITB | New | FIFTH THIRD BANCORP | $4,909,000 | – | 182,003 | +100.0% | 0.66% | – |
| STNG | Buy | SCORPIO TANKERS, INC. | $4,806,000 | +171.1% | 1,060,895 | +177.1% | 0.65% | +166.3% |
| ELLI | New | ELLIE MAE, INC. | $4,648,000 | – | 55,550 | +100.0% | 0.63% | – |
| NUAN | New | NUANCE COMMUNICATIONS, INC. | $4,603,000 | – | 308,951 | +100.0% | 0.62% | – |
| CNX | New | CONSOL ENERGY, INC. | $4,532,000 | – | 248,600 | +100.0% | 0.61% | – |
| QLYS | Buy | QUALYS, INC. | $4,521,000 | +201.0% | 142,839 | +263.2% | 0.61% | +195.6% |
| GSTCQ | New | GASTAR EXPLORATION, INC. | $4,400,000 | – | 2,838,716 | +100.0% | 0.59% | – |
| TAST | Sell | CARROLS RESTAURANT GROUP, INC. | $4,343,000 | +8.2% | 284,787 | -6.3% | 0.58% | +6.2% |
| CVLG | New | COVENANT TRANSPORTATION GROUP, INC. | $4,307,000 | – | 222,699 | +100.0% | 0.58% | – |
| ZEN | Buy | ZENDESK, INC. | $4,191,000 | -9.6% | 197,706 | +30.9% | 0.56% | -11.3% |
| PEIX | New | PACIFIC ETHANOL, INC. | $4,030,000 | – | 424,196 | +100.0% | 0.54% | – |
| ARCC | New | ARES CAPITAL CORPORATION | $3,946,000 | – | 239,276 | +100.0% | 0.53% | – |
| PACW | New | PACWEST BANCORP | $3,910,000 | – | 71,824 | +100.0% | 0.53% | – |
| FN | New | FABRINET | $3,692,000 | – | 91,613 | +100.0% | 0.50% | – |
| VRTU | Sell | VIRTUSA CORPORATION | $3,665,000 | -53.3% | 145,905 | -54.1% | 0.49% | -54.3% |
| DB | New | DEUTSCHE BANK AG | $3,456,000 | – | 190,944 | +100.0% | 0.46% | – |
| ALRM | New | ALARM.COM HOLDINGS, INC. | $3,428,000 | – | 123,171 | +100.0% | 0.46% | – |
| IPI | New | INTREPID POTASH, INC. | $3,356,000 | – | 1,613,596 | +100.0% | 0.45% | – |
| QADA | Sell | QAD, INC. | $3,353,000 | +35.3% | 110,286 | -0.4% | 0.45% | +32.6% |
| ANIK | Buy | ANIKA THERAPEUTICS, INC. | $3,324,000 | +6.4% | 67,892 | +4.0% | 0.45% | +4.4% |
| W | Sell | WAYFAIR, INC. | $3,274,000 | -13.0% | 93,415 | -2.3% | 0.44% | -14.5% |
| LITE | Buy | LUMENTUM HOLDINGS, INC. | $3,253,000 | +57.1% | 84,163 | +69.7% | 0.44% | +54.2% |
| OEC | Sell | ORION ENGINEERED CARBONS S.A. | $3,181,000 | -43.5% | 168,778 | -43.8% | 0.43% | -44.6% |
| PINC | Sell | PREMIER, INC. | $3,175,000 | -80.5% | 104,565 | -79.2% | 0.43% | -80.8% |
| KRA | New | KRATON CORPORATION | $3,070,000 | – | 107,807 | +100.0% | 0.41% | – |
| FLML | Sell | FLAMEL TECHNOLOGIES | $2,902,000 | -68.3% | 279,351 | -62.1% | 0.39% | -68.8% |
| EA | Sell | ELECTRONIC ARTS | $2,845,000 | -76.1% | 36,120 | -74.1% | 0.38% | -76.6% |
| TBBK | New | THE BANCORP, INC. | $2,694,000 | – | 342,752 | +100.0% | 0.36% | – |
| SBNY | New | SIGNATURE BANK | $2,639,000 | – | 17,567 | +100.0% | 0.36% | – |
| FVE | Sell | FIVE STAR QUALITY CARE, INC. | $2,627,000 | -10.1% | 972,857 | -36.4% | 0.35% | -11.7% |
| MERC | New | MERCER INTERNATIONAL, INC. | $2,605,000 | – | 244,612 | +100.0% | 0.35% | – |
| UA | New | UNDER ARMOUR, INC. | $2,606,000 | – | 103,534 | +100.0% | 0.35% | – |
| LONEQ | New | LONESTAR RESOURCES US, INC. | $2,557,000 | – | 299,390 | +100.0% | 0.34% | – |
| ASPS | New | ALTISOURCE PORTFOLIO SOLUTIONS S.A. | $2,501,000 | – | 94,070 | +100.0% | 0.34% | – |
| BKD | Sell | BROOKDALE SENIOR LIVING, INC. | $2,489,000 | -53.5% | 200,442 | -34.6% | 0.34% | -54.4% |
| LOCO | Buy | EL POLLO LOCO HOLDINGS, INC. | $2,394,000 | +41.5% | 194,660 | +44.9% | 0.32% | +38.8% |
| MTSI | New | MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC. | $2,375,000 | – | 51,313 | +100.0% | 0.32% | – |
| RPD | New | RAPID7, INC. | $2,175,000 | – | 178,684 | +100.0% | 0.29% | – |
| DS | New | DRIVE SHACK, INC. | $2,055,000 | – | 546,659 | +100.0% | 0.28% | – |
| BV | Buy | BAZAARVOICE, INC. | $2,030,000 | -10.3% | 418,614 | +9.3% | 0.27% | -12.2% |
| DMRC | New | DIGIMARC CORPORATION | $1,947,000 | – | 64,898 | +100.0% | 0.26% | – |
| CAI | Sell | CAI INTERNATIONAL, INC. | $1,926,000 | -14.4% | 222,164 | -18.3% | 0.26% | -16.2% |
| DTEA | Buy | DAVIDSTEA, INC. | $1,910,000 | -23.6% | 278,828 | +37.5% | 0.26% | -25.1% |
| CFCOU | Sell | CF CORPORATIONother | $1,654,000 | -44.2% | 158,008 | -45.6% | 0.22% | -45.2% |
| AAOI | Sell | APPLIED OPTOELECTRONICS, INC. | $1,514,000 | -45.8% | 64,594 | -48.6% | 0.20% | -46.7% |
| BCOV | Sell | BRIGHTCOVE, INC. | $1,259,000 | -83.5% | 156,423 | -73.3% | 0.17% | -83.8% |
| MCRB | Sell | SERES THERAPEUTICS, INC. | $1,099,000 | -68.8% | 111,054 | -61.3% | 0.15% | -69.4% |
| INAP | New | INTERNAP CORPORATION | $1,072,000 | – | 696,093 | +100.0% | 0.14% | – |
| IMPV | Sell | IMPERVA, INC. | $1,048,000 | -57.3% | 27,292 | -40.2% | 0.14% | -58.2% |
| BSFT | Sell | BROADSOFT, INC. | $1,049,000 | -58.3% | 25,424 | -53.0% | 0.14% | -59.2% |
| OVAS | Sell | OVASCIENCE, INC. | $1,017,000 | -83.5% | 664,757 | -23.0% | 0.14% | -83.8% |
| PMTS | Sell | CPI CARD GROUP, INC. | $911,000 | -73.0% | 219,421 | -60.7% | 0.12% | -73.4% |
| AGO | Sell | ASSURED GUARANTY LTD. | $916,000 | -53.8% | 24,243 | -66.1% | 0.12% | -54.8% |
| JAKK | New | JAKKS PACIFIC, INC. | $789,000 | – | 153,270 | +100.0% | 0.11% | – |
| MIME | Sell | MIMECAST LTD. | $638,000 | -92.9% | 35,635 | -92.5% | 0.09% | -93.1% |
| LOCK | Sell | LIFELOCK, INC. | $579,000 | -88.1% | 24,209 | -91.6% | 0.08% | -88.3% |
| FLWS | Sell | 1-800-FLOWERS.COM, INC. | $346,000 | -87.5% | 32,356 | -89.3% | 0.05% | -87.7% |
| GRPN | Sell | GROUPON, INC. | $142,000 | -98.4% | 42,813 | -97.6% | 0.02% | -98.5% |
| NNA | Sell | NAVIOS MARITIME ACQUISITION CORPORATION | $101,000 | -90.6% | 59,492 | -92.6% | 0.01% | -90.5% |
| LIOX | Sell | LIONBRIDGE TECHNOLOGIES, INC. | $93,000 | -94.3% | 15,985 | -95.1% | 0.01% | -94.2% |
| SUPN | Exit | SUPERNUS PHARMACEUTICALS, INC. | $0 | – | -18,990 | -100.0% | -0.06% | – |
| CRY | Exit | CRYOLIFE, INC. | $0 | – | -68,459 | -100.0% | -0.16% | – |
| BCOR | Exit | BLUCORA, INC. | $0 | – | -129,089 | -100.0% | -0.20% | – |
| SAVE | Exit | SPIRIT AIRLINES, INC. | $0 | – | -41,573 | -100.0% | -0.24% | – |
| MGA | Exit | MAGNA INTERNATIONAL, INC. | $0 | – | -42,999 | -100.0% | -0.25% | – |
| CHUBA | Exit | COMMERCEHUB, INC. | $0 | – | -117,663 | -100.0% | -0.26% | – |
| KONAQ | Exit | KONA GRILL, INC. | $0 | – | -149,921 | -100.0% | -0.26% | – |
| DESTQ | Exit | DESTINATION MATERNITY CORPORATION | $0 | – | -325,623 | -100.0% | -0.32% | – |
| AAN | Exit | AARON RENTS, INC. | $0 | – | -94,585 | -100.0% | -0.33% | – |
| WLTW | Exit | WILLIS TOWERS WATSON PLC | $0 | – | -18,091 | -100.0% | -0.33% | – |
| VSAT | Exit | VIASAT, INC. | $0 | – | -33,187 | -100.0% | -0.34% | – |
| MACK | Exit | MERRIMACK PHARMACEUTICALS, INC. | $0 | – | -412,189 | -100.0% | -0.36% | – |
| EXAS | Exit | EXACT SCIENCES CORPORATION | $0 | – | -141,730 | -100.0% | -0.36% | – |
| SFS | Exit | SMART & FINAL STORES, INC. | $0 | – | -207,656 | -100.0% | -0.36% | – |
| AAP | Exit | ADVANCE AUTO PARTS, INC. | $0 | – | -18,221 | -100.0% | -0.37% | – |
| EXPE | Exit | EXPEDIA, INC. | $0 | – | -36,373 | -100.0% | -0.58% | – |
| SAAS | Exit | INCONTACT, INC. | $0 | – | -336,308 | -100.0% | -0.64% | – |
| CEMP | Exit | CEMPRA, INC. | $0 | – | -226,893 | -100.0% | -0.75% | – |
| RH | Exit | RESTORATION HARDWARE HLDGS, INC. | $0 | – | -163,505 | -100.0% | -0.78% | – |
| MYGN | Exit | MYRIAD GENETICS, INC. | $0 | – | -277,294 | -100.0% | -0.78% | – |
| NWSA | Exit | NEWS CORPORATION | $0 | – | -416,005 | -100.0% | -0.80% | – |
| NTRA | Exit | NATERA, INC. | $0 | – | -549,570 | -100.0% | -0.84% | – |
| SHOR | Exit | SHORETEL, INC. | $0 | – | -829,967 | -100.0% | -0.91% | – |
| STE | Exit | STERIS PLC | $0 | – | -105,338 | -100.0% | -1.06% | – |
| SFM | Exit | SPROUTS FMRS MKT, INC. | $0 | – | -373,331 | -100.0% | -1.06% | – |
| WNS | Exit | WNS (HOLDINGS) LIMITED | $0 | – | -261,714 | -100.0% | -1.08% | – |
| XTLY | Exit | XACTLY CORPORATION | $0 | – | -606,956 | -100.0% | -1.23% | – |
Original filings
The following EDGAR filing(s) were analyzed to create this report:
- View 13F-HR filed 2017-02-14
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.