Corundum Group, Inc.

13F filer · CIK 0001486083

Reported Aug 7, 2026

Net buyer this quarter

13F portfolio value$337MU.S. long equity reported on 13F

Positions817 new · 4 closed

Net flow last quarter+$1.03MBuys minus sells

Top 10 positions weight23.6%Concentration

Holdings

13F · last 4 quarters free

Scroll for earlier quarters

Company	Value	% of portfolio	% of company	POSITION CHANGE qoq %	First reported
Q2 2026Reported Aug 7, 202681 positions
MMM3m Co	$16.1M	4.77%	0.02%	+0.2%	Q2 2013
IWSImageware Systems Inc	$10.2M	3.02%	Not reported	-10.2%	Q2 2016
LMTLockheed Martin Corp	$9.7M	2.88%	0.01%	Not reported	Q2 2023
SPYSPDR S&P 500 ETF Trust	$9.36M	2.78%	Not reported	+1.2%	Q4 2014
SUSASouthern USA Resources Inc.	$7.4M	2.19%	Not reported	-4.4%	Q4 2021
LINLinde PLC	$7.22M	2.14%	0.00%	-12.3%	Q4 2025
AAPLApple Inc.	$7.08M	2.10%	0.00%	+4.0%	Q2 2014
MSFTMicrosoft Corp	$4.67M	1.38%	0.00%	+0.4%	Q2 2013
INTCIntel Corp	$4.17M	1.24%	0.00%	+0.3%	Q3 2017
CATCaterpillar Inc	$3.55M	1.05%	0.00%	-0.7%	Q4 2018
NVDANvidia Corp	$3.5M	1.04%	0.00%	+3.0%	Q2 2021
GOOGLAlphabet Inc.	$3.49M	1.03%	0.00%	+1.0%	Q4 2018
GLDSPDR Gold Trust	$3.46M	1.03%	0.00%	+0.1%	Q3 2016
GOOGAlphabet Inc.	$3.36M	1.00%	Not reported	+6.0%	Q4 2017
JPMJPMorgan Chase & Co	$3.22M	0.95%	0.00%	+0.9%	Q3 2017
XOMExxonMobil Holdings Corp	$2.57M	0.76%	0.00%	+1.2%	Q2 2013
AVGOBroadcom Inc.	$2.56M	0.76%	0.00%	-0.5%	Q3 2022
CSCOCisco Systems, Inc.	$2.38M	0.71%	0.00%	+0.2%	Q1 2018
FTGCSynergetics, Inc.	$2.28M	0.68%	Not reported	+1.2%	Q3 2021
AMZNAmazon Com Inc	$2.05M	0.61%	0.00%	+1.8%	Q1 2018
VVisa Inc.	$2.04M	0.61%	0.00%	+0.8%	Q1 2018
LLYELI LILLY & Co	$2.02M	0.60%	0.00%	+0.6%	Q4 2018
ABBVAbbVie Inc.	$2.01M	0.60%	0.00%	-0.7%	Q2 2020
JNJJohnson & Johnson	$1.97M	0.58%	0.00%	-0.3%	Q4 2013
GSGoldman Sachs Group Inc	$1.92M	0.57%	0.00%	+0.5%	Q4 2019
USBUS Bancorp \de\	$1.69M	0.50%	0.00%	+0.7%	Q4 2018
ECLEcolab Inc.	$1.57M	0.47%	0.00%	-0.2%	Q4 2018
BMYBristol Myers Squibb Co	$1.49M	0.44%	0.00%	+0.3%	Q3 2017
HDHome Depot, Inc.	$1.45M	0.43%	0.00%	+1.2%	Q4 2018
BACBank of America Corp	$1.42M	0.42%	0.00%	+1.1%	Q1 2019
COSTCostco Wholesale Corp	$1.41M	0.42%	0.00%	+1.9%	Q4 2021
MRKMerck & Co., Inc.	$1.38M	0.41%	0.00%	+2.0%	Q4 2018
DUKDuke Energy CORP	$1.34M	0.40%	0.00%	-1.4%	Q4 2024
WMWaste Management Inc	$1.34M	0.40%	0.00%	+1.1%	Q4 2018
WMTWalmart Inc.	$1.34M	0.40%	0.00%	+2.4%	Q4 2018
AMGNAmgen Inc	$1.33M	0.40%	0.00%	+1.1%	Q4 2018
BRK.BBerkshire Hathaway Inc	$1.3M	0.38%	Not reported	+1.5%	Q1 2018
MAMastercard Inc	$1.29M	0.38%	0.00%	+1.1%	Q4 2019
ORCLOracle Corp	$1.22M	0.36%	0.00%	+2.2%	Q4 2018
MUMicron Technology Inc	$1.2M	0.36%	0.00%	-1.0%	Q2 2023
KOCoca Cola Co	$1.01M	0.30%	0.00%	+3.7%	Q1 2016
BABoeing Co	$998K	0.30%	0.00%	Not reported	Q4 2020
METAMeta Platforms, Inc.	$983K	0.29%	Not reported	Not reported	Q1 2019
ADPAutomatic Data Processing Inc	$974K	0.29%	0.00%	+1.3%	Q4 2018
CVXChevron Corp	$974K	0.29%	0.00%	+3.5%	Q3 2017
MCDMcdonalds Corp	$921K	0.27%	0.00%	+2.2%	Q4 2015
ABTAbbott Laboratories	$889K	0.26%	0.00%	-1.2%	Q1 2016
PGPROCTER & GAMBLE Co	$873K	0.26%	0.00%	+3.2%	Q2 2013
FDXFedex Corp	$871K	0.26%	0.00%	+3.5%	Q3 2017
MDTMedtronic plc	$837K	0.25%	0.00%	+3.7%	Q4 2018

Q1 2026Reported Apr 20, 202676 positions
MMM3m Co	$14.4M	4.81%	0.02%	+1.2%	Q2 2013
LMTLockheed Martin Corp	$11.5M	3.85%	0.01%	-26.1%	Q2 2023
IWSImageware Systems Inc	$10M	3.35%	Not reported	+1.4%	Q2 2016
SPYSPDR S&P 500 ETF Trust	$8.06M	2.69%	Not reported	+0.9%	Q4 2014
LINLinde PLC	$7.86M	2.63%	0.00%	-33.1%	Q4 2025
SUSASouthern USA Resources Inc.	$6.62M	2.21%	Not reported	-1.8%	Q4 2021
AAPLApple Inc.	$5.97M	1.99%	0.00%	+0.2%	Q2 2014
MSFTMicrosoft Corp	$4.61M	1.54%	0.00%	-18.3%	Q2 2013
GLDSPDR Gold Trust	$4.04M	1.35%	0.00%	+8.1%	Q3 2016
XOMExxonMobil Holdings Corp	$3.16M	1.05%	0.00%	+4.8%	Q2 2013
NVDANvidia Corp	$2.96M	0.99%	0.00%	+2.9%	Q2 2021
JPMJPMorgan Chase & Co	$2.87M	0.96%	0.00%	+0.8%	Q3 2017
GOOGLAlphabet Inc.	$2.78M	0.93%	0.00%	-8.3%	Q4 2018
GOOGAlphabet Inc.	$2.57M	0.86%	Not reported	+2.6%	Q4 2017
FTGCSynergetics, Inc.	$2.39M	0.80%	Not reported	+18.1%	Q3 2021
CATCaterpillar Inc	$2.38M	0.80%	0.00%	+5.7%	Q4 2018
AVGOBroadcom Inc.	$2.11M	0.71%	0.00%	+5.1%	Q3 2022
JNJJohnson & Johnson	$1.9M	0.64%	0.00%	+6.0%	Q4 2013
VVisa Inc.	$1.79M	0.60%	0.00%	+33.7%	Q1 2018
AMZNAmazon Com Inc	$1.76M	0.59%	0.00%	-6.9%	Q1 2018
ABBVAbbVie Inc.	$1.75M	0.59%	0.00%	-3.1%	Q2 2020
GSGoldman Sachs Group Inc	$1.6M	0.53%	0.00%	+10.5%	Q4 2019
CSCOCisco Systems, Inc.	$1.57M	0.52%	0.00%	+9.7%	Q1 2018
BMYBristol Myers Squibb Co	$1.56M	0.52%	0.00%	+8.9%	Q3 2017
LLYELI LILLY & Co	$1.54M	0.51%	0.00%	+10.5%	Q4 2018
ECLEcolab Inc.	$1.5M	0.50%	0.00%	+11.2%	Q4 2018
COSTCostco Wholesale Corp	$1.47M	0.49%	0.00%	-7.3%	Q4 2021
USBUS Bancorp \de\	$1.45M	0.48%	0.00%	+9.8%	Q4 2018
WMTWalmart Inc.	$1.44M	0.48%	0.00%	+9.5%	Q4 2018
DUKDuke Energy CORP	$1.41M	0.47%	0.00%	+172.9%	Q4 2024
WMWaste Management Inc	$1.37M	0.46%	0.00%	+11.3%	Q4 2018
HDHome Depot, Inc.	$1.33M	0.45%	0.00%	+13.6%	Q4 2018
INTCIntel Corp	$1.31M	0.44%	0.00%	+9.9%	Q3 2017
AMGNAmgen Inc	$1.28M	0.43%	0.00%	+10.9%	Q4 2018
MRKMerck & Co., Inc.	$1.26M	0.42%	0.00%	+9.9%	Q4 2018
MAMastercard Inc	$1.24M	0.41%	0.00%	+51.2%	Q4 2019
BRK.BBerkshire Hathaway Inc	$1.22M	0.41%	Not reported	+1.5%	Q1 2018
BACBank of America Corp	$1.2M	0.40%	0.00%	+15.3%	Q1 2019
ORCLOracle Corp	$1.19M	0.40%	0.00%	+19.4%	Q4 2018
CVXChevron Corp	$1.17M	0.39%	0.00%	+20.4%	Q3 2017
MCDMcdonalds Corp	$1.04M	0.35%	0.00%	-15.6%	Q4 2015
ABTAbbott Laboratories	$1.02M	0.34%	0.00%	+3.2%	Q1 2016
FDXFedex Corp	$957K	0.32%	0.00%	+24.4%	Q3 2017
PFEPfizer Inc	$921K	0.31%	0.00%	+1.1%	Q3 2015
KOCoca Cola Co	$915K	0.31%	0.00%	+13.7%	Q1 2016
MDTMedtronic plc	$894K	0.30%	0.00%	+26.2%	Q4 2018
ADPAutomatic Data Processing Inc	$872K	0.29%	0.00%	+56.7%	Q4 2018
VZVerizon Communications Inc	$844K	0.28%	0.00%	Not reported	Q4 2018
HONHoneywell International Inc	$842K	0.28%	0.00%	+6.4%	Q4 2018
PGPROCTER & GAMBLE Co	$833K	0.28%	0.00%	+33.9%	Q2 2013

Q4 2025Reported Jan 12, 202684 positions
MMM3m Co	$15.7M	5.26%	0.02%	+0.2%	Q2 2013
LMTLockheed Martin Corp	$12.5M	4.18%	0.01%	Not reported	Q2 2023
LINLinde PLC	$10.1M	3.39%	0.01%	New	Q4 2025
IWSImageware Systems Inc	$9.58M	3.21%	Not reported	+30.3%	Q2 2016
SPYSPDR S&P 500 ETF Trust	$8.37M	2.81%	Not reported	+3.0%	Q4 2014
MSFTMicrosoft Corp	$7.38M	2.48%	0.00%	+2.2%	Q2 2013
SUSASouthern USA Resources Inc.	$7.12M	2.39%	Not reported	-18.9%	Q4 2021
AAPLApple Inc.	$6.38M	2.14%	0.00%	+0.1%	Q2 2014
GLDSPDR Gold Trust	$3.44M	1.16%	0.00%	-5.1%	Q3 2016
GOOGLAlphabet Inc.	$3.3M	1.11%	0.00%	-4.3%	Q4 2018
JPMJPMorgan Chase & Co	$3.12M	1.05%	0.00%	-1.5%	Q3 2017
NVDANvidia Corp	$3.07M	1.03%	0.00%	+0.5%	Q2 2021
GOOGAlphabet Inc.	$2.74M	0.92%	Not reported	-0.6%	Q4 2017
AVGOBroadcom Inc.	$2.25M	0.75%	0.00%	+15.4%	Q3 2022
XOMExxonMobil Holdings Corp	$2.14M	0.72%	0.00%	+5.2%	Q2 2013
AMZNAmazon Com Inc	$2.1M	0.70%	0.00%	+1.3%	Q1 2018
ABBVAbbVie Inc.	$1.9M	0.64%	0.00%	+10.8%	Q2 2020
CATCaterpillar Inc	$1.82M	0.61%	0.00%	-4.1%	Q4 2018
FTGCSynergetics, Inc.	$1.64M	0.55%	Not reported	-4.3%	Q3 2021
LLYELI LILLY & Co	$1.62M	0.55%	0.00%	-6.3%	Q4 2018
VVisa Inc.	$1.55M	0.52%	0.00%	-16.8%	Q1 2018
JNJJohnson & Johnson	$1.52M	0.51%	0.00%	-0.4%	Q4 2013
GSGoldman Sachs Group Inc	$1.5M	0.50%	0.00%	-6.2%	Q4 2019
CSCOCisco Systems, Inc.	$1.42M	0.48%	0.00%	-6.1%	Q1 2018
COSTCostco Wholesale Corp	$1.38M	0.46%	0.00%	+18.7%	Q4 2021
USBUS Bancorp \de\	$1.35M	0.45%	0.00%	-7.5%	Q4 2018
ECLEcolab Inc.	$1.33M	0.45%	0.00%	-0.4%	Q4 2018
ORCLOracle Corp	$1.33M	0.44%	0.00%	-18.3%	Q4 2018
BMYBristol Myers Squibb Co	$1.27M	0.43%	0.00%	-7.1%	Q3 2017
BRK.BBerkshire Hathaway Inc	$1.26M	0.42%	Not reported	-3.6%	Q1 2018
HDHome Depot, Inc.	$1.23M	0.41%	0.00%	-7.9%	Q4 2018
MCDMcdonalds Corp	$1.21M	0.41%	0.00%	+9.3%	Q4 2015
ABTAbbott Laboratories	$1.21M	0.40%	0.00%	+10.3%	Q1 2016
BACBank of America Corp	$1.18M	0.39%	0.00%	-11.8%	Q1 2019
WMTWalmart Inc.	$1.18M	0.39%	0.00%	+2.7%	Q4 2018
WMWaste Management Inc	$1.17M	0.39%	0.00%	-6.8%	Q4 2018
AMGNAmgen Inc	$1.07M	0.36%	0.00%	-7.0%	Q4 2018
MRKMerck & Co., Inc.	$1.01M	0.34%	0.00%	-1.9%	Q4 2018
INTCIntel Corp	$999K	0.34%	0.00%	+0.4%	Q3 2017
MAMastercard Inc	$936K	0.31%	0.00%	-30.0%	Q4 2019
PFEPfizer Inc	$808K	0.27%	0.00%	-0.9%	Q3 2015
MDTMedtronic plc	$785K	0.26%	0.00%	-3.0%	Q4 2018
KOCoca Cola Co	$740K	0.25%	0.00%	+3.5%	Q1 2016
CVXChevron Corp	$718K	0.24%	0.00%	+2.7%	Q3 2017
DISWalt Disney Co	$707K	0.24%	0.00%	-0.5%	Q1 2018
ADPAutomatic Data Processing Inc	$704K	0.24%	0.00%	-18.4%	Q4 2018
HONHoneywell International Inc	$682K	0.23%	0.00%	+17.8%	Q4 2018
SOLVSolventum Corp	$652K	0.22%	0.00%	Not reported	Q2 2024
FDXFedex Corp	$624K	0.21%	0.00%	+4.5%	Q3 2017
PGPROCTER & GAMBLE Co	$617K	0.21%	0.00%	-26.1%	Q2 2013

Q3 2025Reported Oct 24, 202576 positions
MMM3m Co	$15.2M	6.24%	0.02%	-0.3%	Q2 2013
SUSASouthern USA Resources Inc.	$8.54M	3.51%	Not reported	-1.8%	Q4 2021
SPYSPDR S&P 500 ETF Trust	$7.94M	3.26%	Not reported	-5.9%	Q4 2014
MSFTMicrosoft Corp	$7.73M	3.18%	0.00%	-1.2%	Q2 2013
IWSImageware Systems Inc	$7.28M	2.99%	Not reported	+4.2%	Q2 2016
AAPLApple Inc.	$5.97M	2.45%	0.00%	-2.0%	Q2 2014
GLDSPDR Gold Trust	$3.26M	1.34%	0.00%	-0.6%	Q3 2016
JPMJPMorgan Chase & Co	$3.1M	1.27%	0.00%	-2.2%	Q3 2017
NVDANvidia Corp	$3.06M	1.26%	0.00%	-4.7%	Q2 2021
GOOGLAlphabet Inc.	$2.68M	1.10%	0.00%	+0.8%	Q4 2018
ORCLOracle Corp	$2.34M	0.96%	0.00%	-1.3%	Q4 2018
GOOGAlphabet Inc.	$2.14M	0.88%	Not reported	-2.0%	Q4 2017
AMZNAmazon Com Inc	$1.97M	0.81%	0.00%	-0.4%	Q1 2018
FTGCSynergetics, Inc.	$1.91M	0.78%	Not reported	+1.2%	Q3 2021
XOMExxonMobil Holdings Corp	$1.9M	0.78%	0.00%	-1.6%	Q2 2013
AVGOBroadcom Inc.	$1.86M	0.76%	0.00%	0.0%	Q3 2022
VVisa Inc.	$1.81M	0.74%	0.00%	-1.7%	Q1 2018
ABBVAbbVie Inc.	$1.74M	0.71%	0.00%	-0.3%	Q2 2020
CATCaterpillar Inc	$1.58M	0.65%	0.00%	-1.0%	Q4 2018
HDHome Depot, Inc.	$1.57M	0.64%	0.00%	+1.6%	Q4 2018
GSGoldman Sachs Group Inc	$1.45M	0.60%	0.00%	-3.0%	Q4 2019
ECLEcolab Inc.	$1.4M	0.57%	0.00%	-0.5%	Q4 2018
JNJJohnson & Johnson	$1.37M	0.56%	0.00%	-0.9%	Q4 2013
CSCOCisco Systems, Inc.	$1.34M	0.55%	0.00%	-0.1%	Q1 2018
MAMastercard Inc	$1.33M	0.55%	0.00%	-2.5%	Q4 2019
USBUS Bancorp \de\	$1.32M	0.54%	0.00%	-2.5%	Q4 2018
BRK.BBerkshire Hathaway Inc	$1.31M	0.54%	Not reported	+0.2%	Q1 2018
WMWaste Management Inc	$1.27M	0.52%	0.00%	-0.3%	Q4 2018
BACBank of America Corp	$1.25M	0.51%	0.00%	-2.4%	Q1 2019
COSTCostco Wholesale Corp	$1.24M	0.51%	0.00%	-1.9%	Q4 2021
LLYELI LILLY & Co	$1.23M	0.51%	0.00%	-1.0%	Q4 2018
DUKDuke Energy CORP	$1.19M	0.49%	0.00%	-0.3%	Q4 2024
ABTAbbott Laboratories	$1.17M	0.48%	0.00%	-0.3%	Q1 2016
BMYBristol Myers Squibb Co	$1.15M	0.47%	0.00%	-0.1%	Q3 2017
MCDMcdonalds Corp	$1.1M	0.45%	0.00%	+3.2%	Q4 2015
WMTWalmart Inc.	$1.06M	0.44%	0.00%	-0.8%	Q4 2018
AMGNAmgen Inc	$995K	0.41%	0.00%	+0.2%	Q4 2018
ADPAutomatic Data Processing Inc	$984K	0.40%	0.00%	+0.2%	Q4 2018
INTCIntel Corp	$905K	0.37%	0.00%	-2.2%	Q3 2017
PGPROCTER & GAMBLE Co	$896K	0.37%	0.00%	+1.8%	Q2 2013
PFEPfizer Inc	$834K	0.34%	0.00%	+1.7%	Q3 2015
MRKMerck & Co., Inc.	$818K	0.34%	0.00%	+1.3%	Q4 2018
MDTMedtronic plc	$803K	0.33%	0.00%	+0.8%	Q4 2018
DISWalt Disney Co	$715K	0.29%	0.00%	-10.0%	Q1 2018
CVXChevron Corp	$713K	0.29%	0.00%	+0.8%	Q3 2017
VZVerizon Communications Inc	$693K	0.28%	0.00%	Not reported	Q4 2018
KOCoca Cola Co	$678K	0.28%	0.00%	+1.6%	Q1 2016
HONHoneywell International Inc	$625K	0.26%	0.00%	+2.1%	Q4 2018
TGTTarget Corp	$606K	0.25%	0.00%	+1.4%	Q4 2017
SOLVSolventum Corp	$601K	0.25%	0.00%	-30.1%	Q2 2024

Premium opens every quarter this fund has filed