Great Diamond Partners, LLC — 13F Holdings & Portfolio
CIK 1801112 · latest 13F-HR filed 2026-07-17
Great Diamond Partners, LLC manages $581.8M in 13F-reported U.S. long-equity assets across 238 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are VTI (5.60%), IWV (5.29%), IEFA (4.72%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 24 new positions, exited 14, added to 127, and trimmed 46.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
SUITE 300
PORTLAND, ME 04101
$581.8M
Long-equity book
238
Distinct positions
2026-06-30
Filed 2026-07-17
+24 / −14 / ↑127 / ↓46
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- VANGUARD INDEX FDS$4.9M +17.7%
- KLA CORP$4.6M +103.3%
- ISHARES TR$4.1M +15.2%
- ISHARES TR$3.9M +250.7%
- ISHARES TR$3.7M +90.2%
Top Trims
- ISHARES TR-$3.0M -71.0%
- LAS VEGAS SANDS CORP-$2.0M -68.0%
- ISHARES TR-$1.5M -26.8%
- AT&T INC-$1.1M -78.6%
- FIRST TR EXCHANGE TRADED FD-$1.0M -24.1%
New Positions
- FIRST TR EXCHANGE TRADED FD$3.1M
- SPDR SERIES TRUST$3.1M
- GLOBAL X FDS$3.0M
- VALERO ENERGY CORP$2.5M
- NOKIA CORP$1.4M
Exited Positions
- EXXON MOBIL CORP$5.3M
- SPDR SERIES TRUST$2.7M
- SPDR SERIES TRUST$2.6M
- GLOBAL X FDS$2.6M
- HONEYWELL INTL INC$1.0M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | VANGUARD INDEX FDS | VTI | 922908769 | $32.6M | 5.60% | 87,989 | SH |
| 2 | ISHARES TR | IWV | 464287689 | $30.8M | 5.29% | 72,221 | SH |
| 3 | ISHARES TR | IEFA | 46432F842 | $27.4M | 4.72% | 284,116 | SH |
| 4 | VANGUARD INDEX FDS | VXF | 922908652 | $15.2M | 2.61% | 61,720 | SH |
| 5 | AMERICAN CENTY ETF TR | AVEM | 025072604 | $12.9M | 2.21% | 133,492 | SH |
| 6 | SIMPLIFY EXCHANGE TRADED FUN | AGGH | 82889N723 | $12.2M | 2.09% | 603,638 | SH |
| 7 | PROCTER & GAMBLE CO | PG | 742718109 | $11.6M | 1.99% | 78,819 | SH |
| 8 | DIMENSIONAL ETF TRUST | DFAI | 25434V203 | $11.2M | 1.93% | 272,400 | SH |
| 9 | MICROSOFT CORP | MSFT | 594918104 | $10.3M | 1.77% | 27,596 | SH |
| 10 | KLA CORP | KLAC | 482480100 | $9.0M | 1.55% | 29,927 | SH |
| 11 | PIMCO ETF TR | PYLD | 72201R585 | $8.5M | 1.47% | 321,748 | SH |
| 12 | VANGUARD INDEX FDS | VUG | 922908736 | $8.4M | 1.45% | 97,960 | SH |
| 13 | HARBOR ETF TRUST | HGER | 41151J505 | $8.4M | 1.44% | 284,636 | SH |
| 14 | BLACKROCK ETF TRUST | DYNF | 09290C103 | $8.3M | 1.42% | 121,880 | SH |
| 15 | ISHARES TR | AGZ | 464288166 | $8.1M | 1.40% | 74,286 | SH |
| 16 | APPLE INC | AAPL | 037833100 | $8.0M | 1.38% | 27,652 | SH |
| 17 | ISHARES TR | IBDS | 46435UAA9 | $7.8M | 1.35% | 323,681 | SH |
| 18 | IDEXX LABS INC | IDXX | 45168D104 | $7.5M | 1.29% | 14,310 | SH |
| 19 | CORNING INC | GLW | 219350105 | $7.4M | 1.27% | 29,004 | SH |
| 20 | ISHARES TR | IJH | 464287507 | $7.2M | 1.23% | 92,895 | SH |
| 21 | BROADCOM INC | AVGO | 11135F101 | $7.2M | 1.23% | 18,945 | SH |
| 22 | NVIDIA CORPORATION | NVDA | 67066G104 | $7.1M | 1.23% | 35,665 | SH |
| 23 | ISHARES TR | IEI | 464288661 | $7.1M | 1.22% | 60,578 | SH |
| 24 | INVESCO EXCHANGE TRADED FD T | RSP | 46137V357 | $6.7M | 1.15% | 31,345 | SH |
| 25 | ALPHABET INC | GOOGL | 02079K305 | $6.5M | 1.12% | 18,219 | SH |
| 26 | ALPHABET INC | GOOG | 02079K107 | $5.6M | 0.96% | 15,725 | SH |
| 27 | ISHARES TR | IBDU | 46436E205 | $5.5M | 0.94% | 235,576 | SH |
| 28 | WILLIAMS SONOMA INC | WSM | 969904101 | $5.3M | 0.90% | 22,550 | SH |
| 29 | TAIWAN SEMICONDUCTOR MANUFAC | TSM | 874039100 | $4.9M | 0.84% | 10,273 | SH |
| 30 | WASTE MGMT INC DEL | WM | 94106L109 | $4.8M | 0.82% | 21,460 | SH |
| 31 | CARDINAL HEALTH INC | CAH | 14149Y108 | $4.7M | 0.80% | 19,577 | SH |
| 32 | CATERPILLAR INC | CAT | 149123101 | $4.6M | 0.79% | 4,300 | SH |
| 33 | WELLTOWER INC | WELL | 95040Q104 | $4.5M | 0.78% | 19,910 | SH |
| 34 | ELI LILLY & CO | LLY | 532457108 | $4.5M | 0.77% | 3,752 | SH |
| 35 | BANK OF NY MELLON CORP | BK | 064058100 | $4.2M | 0.72% | 29,033 | SH |
| 36 | ISHARES TR | IBDT | 46435U515 | $4.1M | 0.70% | 161,987 | SH |
| 37 | PARKER-HANNIFIN CORP | PH | 701094104 | $4.0M | 0.68% | 4,066 | SH |
| 38 | AMAZON COM INC | AMZN | 023135106 | $3.9M | 0.67% | 16,315 | SH |
| 39 | JPMORGAN CHASE & CO | JPM | 46625H100 | $3.8M | 0.65% | 11,594 | SH |
| 40 | AMGEN INC | AMGN | 031162100 | $3.7M | 0.64% | 10,339 | SH |
| 41 | SPDR SERIES TRUST | SPHY | 78468R606 | $3.5M | 0.61% | 151,055 | SH |
| 42 | ISHARES TR | EMB | 464288281 | $3.5M | 0.61% | 36,556 | SH |
| 43 | TAPESTRY INC | TPR | 876030107 | $3.4M | 0.59% | 23,282 | SH |
| 44 | ISHARES TR | IGIB | 464288638 | $3.4M | 0.58% | 63,843 | SH |
| 45 | SPDR SERIES TRUST | SJNK | 78468R408 | $3.3M | 0.58% | 133,807 | SH |
| 46 | VANECK ETF TRUST | SMH | 92189F676 | $3.3M | 0.57% | 5,055 | SH |
| 47 | UNUM GROUP | UNM | 91529Y106 | $3.3M | 0.56% | 36,539 | SH |
| 48 | GLOBAL X FDS | DTCR | 37954Y236 | $3.2M | 0.56% | 106,710 | SH |
| 49 | CUMMINS INC | CMI | 231021106 | $3.2M | 0.55% | 4,523 | SH |
| 50 | FIRST TR EXCHANGE TRADED FD | TDIV | 33738R118 | $3.2M | 0.55% | 27,848 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-07-17 | $581.8M | 238 | 0001172661-26-002658 |
| 2026-03-31 | 2026-05-12 | $519.5M | 228 | 0001172661-26-001739 |
| 2025-12-31 | 2026-02-06 | $519.7M | 227 | 0001172661-26-000514 |
| 2025-09-30 | 2025-10-20 | $515.6M | 225 | 0001172661-25-004336 |