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Super Investors Great Diamond Partners, LLC
GD

Great Diamond Partners, LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$596M
Positions
238
Quarter ended
September 30, 2026
Filed
October 13, 2026

Reported portfolio value by quarter (28 quarters reported)

$596M $194M
Q4 19 Q2 21 Q4 22 Q2 24 Q4 25 Q3 26

$263M in Q4 2019 → $596M now. Hover for any quarter.

Holdings

As reported for the quarter ended September 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
VI Vanguard Index Fds 5.5% Added 0.2% 88,142 $33M
IT Ishares Tr 5.2% Trimmed 0.8% 71,655 $30.9M
IT Ishares Tr 4.7% Added 0.9% 286,681 $27.8M
VI Vanguard Index Fds 2.4% Trimmed 0.7% 61,301 $14.2M
Microsoft Corp 2.3% Trimmed 1.2% 27,270 $14M
AC American Centy ETF Tr 2.1% Added 1.3% 135,236 $12.7M
SE Simplify Exchange Traded Fun 2.1% Added 8.6% 655,437 $12.4M
DE Dimensional ETF Trust 1.9% Added 2.6% 279,518 $11.6M
Procter & Gamble Co 1.9% Trimmed 0.4% 78,536 $11.4M
IT Ishares Tr 1.7% Added 30% 420,932 $10.2M
BE Blackrock ETF Trust 1.6% Added 15% 139,885 $9.69M
IE Invesco Exchange Traded Fd T 1.6% Added 47% 46,010 $9.57M
Apple Inc 1.6% Added 0.6% 27,826 $9.27M
PE Pimco ETF Tr 1.5% Added 7.9% 347,235 $8.82M
VI Vanguard Index Fds 1.5% Trimmed 1.1% 96,896 $8.73M
IT Ishares Tr 1.4% Added 4.5% 77,613 $8.27M
Nvidia Corporation 1.3% Trimmed 1.8% 35,027 $8M
IT Ishares Tr 1.3% Added 45% 341,592 $7.75M
IL Idexx Labs Inc 1.3% Added 0.8% 14,421 $7.53M
IT Ishares Tr 1.2% Added 6.6% 64,576 $7.33M
IT Ishares Tr 1.2% Added 5.8% 98,254 $7.07M
Broadcom Inc 1.1% Trimmed 0.2% 18,899 $6.64M
IT Ishares Tr 1.0% Added 53% 247,275 $6.17M
Alphabet Inc 1.0% Trimmed 2.2% 17,822 $6.13M
Kla Corp 1.0% Added 2.2% 30,573 $5.96M
HE Harbor ETF Trust 1.0% Trimmed 43% 163,064 $5.75M
Alphabet Inc 0.9% Added 0.5% 15,800 $5.38M
Exxonmobil Holdings Corp 0.9% New 32,068 $5.22M
Williams Sonoma Inc 0.9% Added 1.2% 22,817 $5.2M
TS Taiwan Semiconductor Manufac 0.8% Added 3.4% 10,622 $4.85M
Welltower Inc 0.8% Trimmed 0.2% 19,867 $4.57M
WM Waste Mgmt Inc Del 0.7% Added 1.3% 21,748 $4.43M
Cardinal Health Inc 0.7% Added 0.9% 19,762 $4.4M
Amgen Inc 0.7% Trimmed 0.0% 10,334 $4.36M
EL Eli Lilly & Co 0.7% Trimmed 0.9% 3,719 $4.3M
BO Bank Of Ny Mellon Corp 0.7% Added 0.8% 29,260 $4.23M
Amazon Com Inc 0.7% Added 0.2% 16,351 $4.07M
Corning Inc 0.7% Trimmed 12% 25,633 $3.94M
Parker-hannifin Corp 0.7% Added 1.4% 4,123 $3.94M
Jpmorgan Chase & Co 0.6% Trimmed 0.3% 11,565 $3.83M
Valero Energy Corp 0.6% Trimmed 1.1% 9,637 $3.74M
Caterpillar Inc 0.6% Added 3.8% 4,464 $3.62M
SS SPDR Series Trust 0.6% Added 5.1% 158,805 $3.59M
IT Ishares Tr 0.6% Added 4.1% 38,068 $3.46M
SS SPDR Series Trust 0.6% Added 5.9% 141,693 $3.44M
IT Ishares Tr 0.6% Added 5.6% 67,434 $3.4M
IT Ishares Tr 0.5% New 76,558 $3.24M
Garmin Ltd 0.5% Trimmed 0.3% 11,274 $3.23M
Unum Group 0.5% Added 0.4% 36,700 $3.22M
Anglogold Ashanti PLC 0.5% Trimmed 12% 33,763 $3.17M
SS SPDR Series Trust 0.5% Added 2.6% 19,820 $3.13M
GX Global X Fds 0.5% Added 3.1% 47,809 $3.12M
FT First Tr Exchange Traded Fd 0.5% Trimmed 1.0% 27,579 $3.11M
FT First Tr Exchange-traded Fd 0.5% New 18,619 $3.05M
AD Automatic Data Processing In 0.5% Trimmed 0.7% 11,803 $3.05M
Blackrock Inc 0.5% Trimmed 1.8% 2,819 $2.98M
GX Global X Fds 0.5% Added 2.7% 109,592 $2.97M
ES ETF Ser Solutions 0.5% Added 3.5% 19,573 $2.97M
VE Vaneck ETF Trust 0.5% Trimmed 4.8% 4,814 $2.93M
SS SPDR Series Trust 0.5% Added 3.8% 13,926 $2.83M

Showing top 60 of 238 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q3 2026

quarter ended September 30, 2026 · filed October 13, 2026

Company Action Shares changed Value of change % of portfolio
Exxonmobil Holdings Corp New +32,068 +$5.22M 0.9%
HE Harbor ETF Trust Trimmed −121,572 −$4.29M 1.0%
Tapestry Inc Exited −23,282 −$3.41M —
IT Ishares Tr New +76,558 +$3.24M 0.5%
FT First Tr Exchange Traded Fd Exited −23,338 −$3.11M —
FT First Tr Exchange-traded Fd New +18,619 +$3.05M 0.5%
IE Invesco Exchange Traded Fd T Added +14,665 +$3.05M 1.6%
CH C H Robinson Worldwide In Exited −15,752 −$2.97M —
IE Invesco Exch Traded Fd Tr Ii Exited −49,705 −$2.94M —
IT Ishares Tr Exited −11,975 −$2.9M —

Showing the 10 largest of 250 changes.

Q2 2026

quarter ended June 30, 2026 · filed July 17, 2026

Company Action Shares changed Value of change % of portfolio
Kla Corp Added +26,911 +$8.12M 1.6%
VI Vanguard Index Fds Added +81,605 +$7.03M 1.5%
Exxon Mobil Corp Exited −31,426 −$5.33M —
IT Ishares Tr Added +168,700 +$3.91M 0.9%
IT Ishares Tr Added +153,607 +$3.72M 1.3%
FT First Tr Exchange Traded Fd New +23,338 +$3.11M 0.5%
SS SPDR Series Trust New +19,315 +$3.06M 0.5%
IT Ishares Tr Trimmed −125,617 −$3.04M 0.2%
GX Global X Fds New +46,389 +$3.04M 0.5%
SS SPDR Series Trust Exited −14,817 −$2.69M —

Showing the 10 largest of 237 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 12, 2026

Company Action Shares changed Value of change % of portfolio
SS State Str SPDR S&P 500 ETF T Trimmed −19,945 −$13M 0.4%
DE Dimensional ETF Trust New +267,142 +$10.4M 2.0%
HE Harbor ETF Trust New +282,220 +$8.75M 1.7%
BE Blackrock ETF Trust New +120,858 +$7.03M 1.4%
VI Vanguard Index Fds Trimmed −13,968 −$6.1M 1.4%
FT First Tr Exchng Traded Fd Vi Exited −105,319 −$5.96M —
SS SPDR Series Trust New +144,142 +$3.36M 0.6%
Eaton Corp PLC Trimmed −9,025 −$3.23M 0.2%
Las Vegas Sands Corp New +53,572 +$2.89M 0.6%
IE Invesco Exch Traded Fd Tr Ii Exited −133,297 −$2.8M —

Showing the 10 largest of 245 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 06, 2026

Company Action Shares changed Value of change % of portfolio
IT Ishares Tr Trimmed −105,512 −$9.44M 5.0%
AC American Centy ETF Tr New +116,438 +$8.97M 1.7%
BM Barrick Mng Corp New +54,953 +$2.39M 0.5%
VI Vanguard Index Fds Added +3,785 +$2.37M 0.7%
AT&T Inc Trimmed −81,761 −$2.03M 0.1%
Anglogold Ashanti PLC Added +21,745 +$1.85M 0.7%
T-mobile Us Inc Trimmed −8,271 −$1.68M 0.1%
Newmont Corp New +13,334 +$1.33M 0.3%
AF Ameriprise Finl Inc Trimmed −2,709 −$1.33M 0.4%
IT Ishares Tr Added +48,997 +$1.25M 0.9%

Showing the 10 largest of 228 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 20, 2025

Company Action Shares changed Value of change % of portfolio
IT Ishares Tr Added +110,605 +$9.66M 6.7%
FT First Tr Exchange Trad Fd Vi Exited −317,076 −$7.82M —
PE Pimco ETF Tr New +243,290 +$6.53M 1.3%
GX Global X Fds New +41,813 +$2.54M 0.5%
Tapestry Inc New +21,153 +$2.39M 0.5%
Nextera Energy Inc New +31,348 +$2.37M 0.5%
GX Global X Fds Exited −33,056 −$2.07M —
AG Apollo Global Mgmt Inc Exited −12,188 −$1.73M —
IT Ishares Tr Trimmed −14,664 −$1.62M 1.4%
VI Vanguard Index Fds Trimmed −2,557 −$1.23M 2.9%

Showing the 10 largest of 221 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 13, 2025

Company Action Shares changed Value of change % of portfolio
PA Procter And Gamble Co Added +67,259 +$10.7M 2.7%
SE Simplify Exchange Traded Fun New +420,667 +$8.68M 1.8%
IT Ishares Tr Exited −81,669 −$8.08M —
Microsoft Corp Added +6,364 +$3.17M 3.2%
AT&T Inc Added +95,096 +$2.75M 0.6%
Hubbell Inc Exited −7,632 −$2.53M —
IT Ishares Tr Exited −79,474 −$2.44M —
Exxon Mobil Corp Added +22,148 +$2.39M 0.7%
GX Global X Fds New +39,323 +$2.37M 0.5%
BN Bank New York Mellon Corp New +24,903 +$2.27M 0.5%

Showing the 10 largest of 234 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 13, 2025

Company Action Shares changed Value of change % of portfolio
FT First Tr Exchange Trad Fd Vi New +312,816 +$7.98M 2.2%
I Ishares Inc Trimmed −132,202 −$7.13M 0.1%
FT First Tr Exchng Traded Fd Vi Exited −144,172 −$6.71M —
SS SPDR S&P 500 ETF Tr Added +6,926 +$3.87M 3.3%
T-mobile Us Inc New +7,476 +$1.99M 0.5%
SS SPDR Ser Tr New +36,940 +$1.96M 0.5%
IT Ishares Tr Exited −17,022 −$1.76M —
NA Novo-nordisk A S Trimmed −24,739 −$1.72M 0.1%
Welltower Inc Added +10,894 +$1.67M 0.6%
MI Mondelez Intl Inc Exited −24,869 −$1.49M —

Showing the 10 largest of 191 changes.

Q4 2024

quarter ended December 31, 2024 · filed January 23, 2025

Company Action Shares changed Value of change % of portfolio
IT Ishares Tr New +141,783 +$3.41M 0.9%
IT Ishares Tr Exited −133,300 −$3.36M —
Blackrock Inc New +2,975 +$3.05M 0.8%
Blackrock Inc Exited −3,065 −$2.91M —
IT Ishares Tr Exited −28,029 −$2.62M —
IT Ishares Tr New +48,378 +$2.49M 0.6%
SS SPDR S&P 500 ETF Tr Added +3,100 +$1.82M 2.2%
Netapp Inc Trimmed −12,013 −$1.39M 0.1%
SS Schwab Strategic Tr Exited −12,847 −$1.09M —
Kla Corp Trimmed −1,713 −$1.08M 0.7%

Showing the 10 largest of 196 changes.

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