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Grizzlyrock Capital, LLC

13F filer · CIK 0002011732
Reported Aug 14, 2026
Net buyer this quarter
13F portfolio value$143MU.S. long equity reported on 13F
Positions204 new · 2 closed
Net flow last quarter+$1.88MBuys minus sells
Top 10 positions weight76.6%Concentration

Holdings

13F · last 4 quarters free
Scroll for earlier quarters
CompanyValue% of portfolio% of companyPOSITION CHANGE qoq %First reported
Q2 2026Reported Aug 14, 202620 positions
MGNIMagnite, Inc.$22.1M15.46%0.81%-6.0%Q4 2023
EEFTEuronet Worldwide, Inc.$15M10.47%0.54%+22.6%Q3 2025
AMNAmn Healthcare Services Inc$12.9M9.04%1.03%-44.9%Q4 2024
GSMFerroglobe PLC$11.3M7.93%1.91%-1.7%Q4 2023
REAXReal Brokerage Inc$8.84M6.18%2.31%+34.1%Q1 2026
DRVNDriven Brands Holdings Inc.$8.67M6.06%0.38%-46.9%Q4 2023
XPOFXponential Fitness, Inc.$8.11M5.67%Not reported+17.8%Q4 2025
GLASGlass House Brands Inc.$7.94M5.55%Not reportedNewQ2 2026
OLNOLIN Corp$7.83M5.48%0.35%-11.2%Q3 2025
AIOTPowerfleet, Inc.$6.87M4.81%1.34%+347.0%Q1 2026
AMTMAmentum Holdings, Inc.$6.58M4.60%0.13%+10.1%Q1 2025
RYZRyerson Holding Corp$6.1M4.27%0.48%-4.6%Q3 2025
COMPCompass, Inc.$5.21M3.65%0.06%NewQ2 2026
JBIJanus International Group, Inc.$4.59M3.21%0.61%+31.9%Q4 2025
ACVAACV Auctions Inc.$4.06M2.84%0.33%-22.8%Q4 2023
CELHCelsius Holdings, Inc.$2.78M1.95%0.04%NewQ2 2026
FRMIFermi Inc.$2.23M1.56%0.04%NewQ2 2026
GELGenesis Energy LP$702K0.49%0.06%-31.7%Q1 2025
EFXTEnerflex Ltd.$588K0.41%0.02%Not reportedQ3 2024
LFCRLifecore Biomedical, Inc. \de\$541K0.38%0.27%-87.6%Q2 2025
Q1 2026Reported May 15, 202618 positions
GSMFerroglobe PLC$15M11.84%1.94%-11.0%Q4 2023
DRVNDriven Brands Holdings Inc.$14.8M11.69%0.71%+124.9%Q4 2023
MGNIMagnite, Inc.$14.7M11.65%0.86%+116.6%Q4 2023
AMNAmn Healthcare Services Inc$13.3M10.53%1.88%+30.5%Q4 2024
OLNOLIN Corp$13.2M10.48%0.39%+164.9%Q3 2025
EEFTEuronet Worldwide, Inc.$11.1M8.77%0.42%+32.1%Q3 2025
REAXReal Brokerage Inc$9.06M7.17%1.72%NewQ1 2026
AMTMAmentum Holdings, Inc.$7.54M5.97%0.12%+1.4%Q1 2025
XPOFXponential Fitness, Inc.$5.99M4.74%Not reported+2.1%Q4 2025
RYZRyerson Holding Corp$5.84M4.63%0.51%-5.3%Q3 2025
JBIJanus International Group, Inc.$3.23M2.56%0.45%+124.9%Q4 2025
GLNGGolar LNG Ltd$3.14M2.48%0.06%+65.7%Q4 2025
ACVAACV Auctions Inc.$3.1M2.45%0.42%-12.9%Q4 2023
LFCRLifecore Biomedical, Inc. \de\$3.08M2.44%2.21%+11.3%Q2 2025
GELGenesis Energy LP$1.29M1.02%0.08%-88.5%Q1 2025
AIOTPowerfleet, Inc.$1.24M0.98%0.30%NewQ1 2026
EFXTEnerflex Ltd.$502K0.40%0.02%Not reportedQ3 2024
OECOrion S.A.$257K0.20%0.07%-78.2%Q4 2023
Q4 2025Reported Feb 17, 202622 positions
GSMFerroglobe PLC$18.9M14.16%2.18%-1.9%Q4 2023
GELGenesis Energy LP$9.83M7.36%0.71%Not reportedQ1 2025
EEFTEuronet Worldwide, Inc.$9.61M7.20%0.30%+528.4%Q3 2025
MGNIMagnite, Inc.$9.28M6.95%0.40%+46.3%Q4 2023
AMNAmn Healthcare Services Inc$8.76M6.55%1.45%+3.4%Q4 2024
AMTMAmentum Holdings, Inc.$8.27M6.19%0.12%+0.7%Q1 2025
DARDarling Ingredients Inc.$8.03M6.01%0.14%-15.4%Q1 2025
XPOFXponential Fitness, Inc.$8.02M6.00%Not reportedNewQ4 2025
DRVNDriven Brands Holdings Inc.$7.72M5.78%0.32%-14.8%Q4 2023
RYZRyerson Holding Corp$6.91M5.17%0.85%-6.3%Q3 2025
ACVAACV Auctions Inc.$6.73M5.04%0.48%+35.7%Q4 2023
LFCRLifecore Biomedical, Inc. \de\$6.08M4.55%1.98%+0.6%Q2 2025
ROGRogers Corp$6.02M4.51%0.37%Not reportedQ2 2025
MATWMatthews International Corp$4.52M3.38%0.56%+30.1%Q2 2025
PRGOPERRIGO Co plc$3.92M2.94%0.20%-6.6%Q4 2023
OLNOLIN Corp$3.5M2.62%0.15%-44.6%Q3 2025
TDWTidewater Inc$1.87M1.40%0.07%-71.7%Q4 2024
JBIJanus International Group, Inc.$1.82M1.36%0.20%NewQ4 2025
GLNGGolar LNG Ltd$1.3M0.97%0.03%NewQ4 2025
NXQuanex Building Products CORP$1.16M0.87%0.17%NewQ4 2025
OECOrion S.A.$957K0.72%0.32%-12.1%Q4 2023
MOHMolina Healthcare, Inc.$347K0.26%0.00%NewQ4 2025
Q3 2025Reported Nov 14, 202523 positions
GSMFerroglobe PLC$18.9M14.68%2.23%-8.5%Q4 2023
GELGenesis Energy LP$10.5M8.18%0.71%Not reportedQ1 2025
AMNAmn Healthcare Services Inc$10.4M8.08%1.40%+88.5%Q4 2024
DRVNDriven Brands Holdings Inc.$9.85M7.65%0.37%-9.8%Q4 2023
MGNIMagnite, Inc.$8.51M6.61%0.27%-59.9%Q4 2023
DARDarling Ingredients Inc.$8.14M6.32%0.17%+0.4%Q1 2025
OLNOLIN Corp$7.57M5.88%0.27%NewQ3 2025
TDWTidewater Inc$7M5.43%0.26%-2.2%Q4 2024
AMTMAmentum Holdings, Inc.$6.78M5.27%0.12%+11.7%Q1 2025
PRGOPERRIGO Co plc$6.72M5.22%0.22%Not reportedQ4 2023
RYZRyerson Holding Corp$6.7M5.20%0.91%NewQ3 2025
ACVAACV Auctions Inc.$6.13M4.76%0.36%Not reportedQ4 2023
LFCRLifecore Biomedical, Inc. \de\$5.44M4.22%1.97%+0.6%Q2 2025
ROGRogers Corp$5.29M4.11%0.37%+206.0%Q2 2025
MATWMatthews International Corp$3.23M2.51%0.43%+26.4%Q2 2025
GRFSGrifols SA$2.07M1.61%Not reported+25.3%Q2 2025
EEFTEuronet Worldwide, Inc.$1.76M1.37%0.05%NewQ3 2025
OECOrion S.A.$1.56M1.21%0.37%Not reportedQ4 2023
XPERXperi Inc.$1.03M0.80%0.34%-82.9%Q1 2024
IASIntegral Ad Science Holding Corp.$623K0.48%0.04%-88.3%Q2 2025
EFXTEnerflex Ltd.$259K0.20%0.02%Not reportedQ3 2024
OPALOPAL Fuels Inc.$179K0.14%0.32%-90.4%Q4 2023
HOSHornbeck Offshore Services Inc$65.6K0.05%0.03%-96.9%Q2 2025
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