Holdings Channel
Size ($ in 1000's)
At 12/31/2023: $1,143,733
At 09/30/2023: $1,070,049

Portolan Capital Management LLC holdings changes, total fund size, and other information presented on HoldingsChannel.com was derived from Portolan Capital Management LLC 13F filings. Link to 13F filings: SEC filings

Portolan Capital Management LLC Top Holdings
As of  12/31/2023, below is a summary of the Portolan Capital Management LLC top holdings by largest position size, as per the latest 13f filing made by Portolan Capital Management LLC. In the Portolan Capital Management LLC-top-holdings-table below, each of the top holdings by name is presented in the first column, followed by the amount of shares held by Portolan Capital Management LLC in that top holding, then the share count change between reporting periods, and finally the Portolan Capital Management LLC top holding position size for that row.

   EntityAmountChange
 09/30/2023 to 12/31/2023
Position Size
($ in 1000's)
SUPER MICRO COMPUTER INC. 242,864 -51,214 $69,037
     SMCI242,864-51,214$69,037
E.L.F. BEAUTY INC. 330,026 +12,519 $47,636
     ELF330,026+12,519$47,636
CELESTICA INC. 1,234,024 -176,352 $36,132
     CLS1,234,024-176,352$36,132
MODINE MANUFACTURING COMPANY 597,757 +85,051 $35,686
     MOD597,757+85,051$35,686
QUANTERIX CORPORATION 1,297,090 -378,748 $35,462
     QTRX1,297,090-378,748$35,462
APPLIED OPTOELECTRONICS INC. 1,539,083 +491,484 $29,735
     AAOI1,539,083+491,484$29,735
LANTHEUS HOLDINGS INC. 427,244 -47,415 $26,489
     LNTH427,244-47,415$26,489
HONEST COMPANY INC. 7,556,985 +461,681 $24,938
     HNST7,556,985+461,681$24,938
AGNICO EAGLE MINES LIMITED 435,276 +435,276 $23,875
     AEM435,276+435,276$23,875
TECNOGLASS INC. 481,863 -130,176 $22,026
     TGLS481,863-130,176$22,026
UNITED THERAPEUTICS CORPORATION 91,808 +10,760 $20,188
     UTHR91,808+10,760$20,188
INDIE SEMICONDUCTOR INC. 2,468,896 +1,676,859 $20,023
     INDI2,468,896+1,676,859$20,023
WALKME LTD. 1,863,049 +861,569 $19,879
     WKME1,863,049+861,569$19,879
BIO RAD LABORATORIES INC. 57,274 +14,788 $18,493
     BIO57,274+14,788$18,493
COUCHBASE INC. 803,364 -284,877 $18,092
     BASE803,364-284,877$18,092
SHIFT4 PAYMENTS INC. 215,727 +115,980 $16,037
     FOUR215,727+115,980$16,037
CASTLE BIOSCIENCES INC. 728,653 +475,625 $15,724
     CSTL728,653+475,625$15,724
ACM RESEARCH INC. 799,504 +799,504 $15,622
     ACMR799,504+799,504$15,622
KRATOS DEFENSE & SECURITY SOLUTIONS INC. 736,017 +197,733 $14,934
     KTOS736,017+197,733$14,934
GENIUS SPORTS LTD. 2,383,604 -728,574 $14,731
     GENI2,383,604-728,574$14,731
APPLIED DIGITAL CORPORATION 2,124,236 +1,100,007 $14,317
     APLD2,124,236+1,100,007$14,317
SUNOPTA INC. 2,603,254 +280,934 $14,240
     STKL2,603,254+280,934$14,240
META PLATFORMS INC. 39,019 -17,954 $13,811
     META39,019-17,954$13,811
MAXCYTE INC. 2,757,249 +613,583 $12,959
     MXCT2,757,249+613,583$12,959
BEL FUSE INC. 190,512 -188,666 $12,720
     BELFB190,512-188,666$12,720
HUDSON TECHNOLOGIES INC. 927,375 -106,590 $12,510
     HDSN927,375-106,590$12,510
VERTIV HOLDINGS LLC 251,081 -895 $12,059
     VRT251,081-895$12,059
WARBY PARKER INC. 848,266 +545,578 $11,961
     WRBY848,266+545,578$11,961
BAIDU INC. 100,001 +23,022 $11,909
     BIDU100,001+23,022$11,909
TAKE TWO INTERACTIVE SOFTWARE INC. 73,972 +28,149 $11,906
     TTWO73,972+28,149$11,906
PDD HOLDINGS INC. 80,844 +80,844 $11,828
     PDD80,844+80,844$11,828
ZETA GLOBAL HOLDINGS CORP. 1,321,337 +354,320 $11,654
     ZETA1,321,337+354,320$11,654
SMART GLOBAL HOLDINGS INC. 608,408 +8,322 $11,517
     SGH608,408+8,322$11,517
SWEETGREEN INC. 983,253 +638,620 $11,111
     SG983,253+638,620$11,111
BILL HOLDINGS INC. 126,148 +126,148 $10,292
     BILL126,148+126,148$10,292
FASTLY INC. 575,889 +575,889 $10,251
     FSLY575,889+575,889$10,251
SIMILARWEB LTD. 1,912,272 -636,360 $10,192
     SMWB1,912,272-636,360$10,192
CROCS INC. 107,503 -108,957 $10,042
     CROX107,503-108,957$10,042
DIGITALOCEAN HOLDINGS INC. 273,426 +273,426 $10,032
     DOCN273,426+273,426$10,032
PORCH GROUP INC. 3,200,183 +3,200,183 $9,857
     PRCH3,200,183+3,200,183$9,857
PAYONEER GLOBAL INC. 1,877,113 -2,034,419 $9,780
     PAYO1,877,113-2,034,419$9,780
ASURE SOFTWARE INC. 1,026,815 +1,026,815 $9,775
     ASUR1,026,815+1,026,815$9,775
FLEX LTD. 310,464 -55,080 $9,457
     FLEX310,464-55,080$9,457
AMPHASTAR PHARMACEUTICALS INC. 148,416 +15,566 $9,180
     AMPH148,416+15,566$9,180
BIOLIFE SOLUTIONS INC. 521,906 +521,906 $8,481
     BLFS521,906+521,906$8,481
HIMS & HERS HEALTH INC. 932,652 +782,652 $8,301
     HIMS932,652+782,652$8,301
RH 28,150 +22,402 $8,205
     RH28,150+22,402$8,205
QUINSTREET INC. 622,551 +340,380 $7,981
     QNST622,551+340,380$7,981
NERDY INC. 2,251,402 +78,152 $7,722
     NRDY2,251,402+78,152$7,722
COMPASS INC.      $7,686
     CL A2,044,130+2,044,130$7,686

See Full List: All Stocks Held By Portolan Capital Management LLC
— Including:
     • Biggest new positions
     • Biggest exits
     • Biggest increased positions
     • Biggest decreased positions

See Details: Top 10 Stocks Held By Portolan Capital Management LLC

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