Boston Common Asset Management, LLC — 13F Holdings & Portfolio
CIK 1409427 · latest 13F-HR filed 2026-05-07
Boston Common Asset Management, LLC manages $1.66B in 13F-reported U.S. long-equity assets across 195 reported positions as of its 2025-12-31 13F-HR filing. Its largest disclosed positions are TSM (6.08%), NVDA (4.61%), MSFT (4.23%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 17 new positions, exited 8, added to 90, and trimmed 52.
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.
$1.66B
Long-equity book
195
Distinct positions
2025-12-31
Filed 2026-05-07
+17 / −8 / ↑90 / ↓52
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- Microsoft Corp.$17.1M +32.1%
- Intuit Inc$14.6M +2615.4%
- CRH Plc$9.0M +50.1%
- HDFC Bank Ltd.$8.0M +48.1%
- Apple Inc.$7.4M +12.2%
Top Trims
- Applied Materials Inc.-$10.9M -68.5%
- Spotify Technology S.A.-$6.9M -27.0%
- HA Sustainable Infrastructure Capital Inc-$5.4M -46.0%
- Vertiv Holdings Co-$4.5M -18.0%
- Quest Diagnostics Incorporated-$4.3M -24.2%
New Positions
- Topbuild Corporation$9.3M
- Weyerhaeuser Company$4.7M
- Ashtead Group PLC$3.6M
- Novo Nordisk A/S$3.2M
- Truist Financial Corp.$3.1M
Exited Positions
- eBay Inc.$7.5M
- ASML Holding N.V.$4.4M
- Linde PLC$3.5M
- Banco Bilbao Vizcaya Argentaria SA$3.4M
- Kingspan Group PLC$3.1M
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 | Taiwan Semiconductor Manufacturing Co., Ltd. | TSM | 874039100 | $100.9M | 6.08% | 331,889 | SH |
| 2 | NVIDIA Corp. | NVDA | 67066G104 | $76.5M | 4.61% | 410,082 | SH |
| 3 | Microsoft Corp. | MSFT | 594918104 | $70.2M | 4.23% | 145,215 | SH |
| 4 | Apple Inc. | AAPL | 037833100 | $68.2M | 4.11% | 250,954 | SH |
| 5 | Alphabet Inc. | GOOGL | 02079K305 | $46.5M | 2.80% | 148,638 | SH |
| 6 | Alphabet Inc. | GOOG | 02079K107 | $42.5M | 2.56% | 135,526 | SH |
| 7 | Broadcom Inc | AVGO | 11135F101 | $42.2M | 2.54% | 121,944 | SH |
| 8 | Visa Inc | V | 92826C839 | $34.5M | 2.08% | 98,501 | SH |
| 9 | Netflix, Inc. | NFLX | 64110L106 | $32.5M | 1.96% | 346,562 | SH |
| 10 | Morgan Stanley | MS | 617446448 | $31.0M | 1.87% | 174,599 | SH |
| 11 | Eli Lilly & Co. | LLY | 532457108 | $29.3M | 1.76% | 27,228 | SH |
| 12 | CRH Plc | CRH | G25508105 | $26.9M | 1.62% | 215,533 | SH |
| 13 | HDFC Bank Ltd. | HDB | 40415F101 | $24.5M | 1.48% | 670,680 | SH |
| 14 | Merck & Co., Inc | MRK | 58933Y105 | $21.4M | 1.29% | 203,207 | SH |
| 15 | Vertiv Holdings Co | VRT | 92537N108 | $20.5M | 1.24% | 126,536 | SH |
| 16 | NuShares ETF Trust | NUSC | 67092P607 | $19.9M | 1.20% | 444,826 | SH |
| 17 | Salesforce Inc. | CRM | 79466L302 | $19.6M | 1.18% | 74,082 | SH |
| 18 | Spotify Technology S.A. | SPOT | L8681T102 | $18.6M | 1.12% | 32,080 | SH |
| 19 | Hubbell Incorporated | HUBB | 443510607 | $18.5M | 1.11% | 41,611 | SH |
| 20 | Colgate-Palmolive Co. | CL | 194162103 | $18.5M | 1.11% | 233,650 | SH |
| 21 | Xylem, Inc. | XYL | 98419M100 | $18.5M | 1.11% | 135,520 | SH |
| 22 | The TJX Companies Inc. | TJX | 872540109 | $18.0M | 1.09% | 117,372 | SH |
| 23 | Roche Holding AG | RHHBY | 771195104 | $17.6M | 1.06% | 339,393 | SH |
| 24 | T-Mobile US Inc | TMUS | 872590104 | $16.8M | 1.01% | 82,658 | SH |
| 25 | Danaher Corporation | DHR | 235851102 | $16.6M | 1.00% | 72,302 | SH |
| 26 | Wabtec Corp | WAB | 929740108 | $16.1M | 0.97% | 75,533 | SH |
| 27 | Chubb Ltd. | CB | H1467J104 | $16.0M | 0.96% | 51,300 | SH |
| 28 | American Water Works Company, Inc. | AWK | 030420103 | $16.0M | 0.96% | 122,475 | SH |
| 29 | Novartis AG | NVS | 66987V109 | $15.6M | 0.94% | 113,266 | SH |
| 30 | CBRE Group Inc. | CBRE | 12504L109 | $15.3M | 0.92% | 95,417 | SH |
| 31 | Booking Holdings Inc | BKNG | 09857L108 | $15.2M | 0.92% | 2,844 | SH |
| 32 | Intuit Inc | INTU | 461202103 | $15.1M | 0.91% | 22,829 | SH |
| 33 | Trip.com Group Ltd. | TCOM | 89677Q107 | $14.3M | 0.86% | 199,303 | SH |
| 34 | Ecolab Inc. | ECL | 278865100 | $14.0M | 0.85% | 53,427 | SH |
| 35 | Bank of America Corp. | BAC | 060505104 | $13.8M | 0.83% | 251,391 | SH |
| 36 | Quest Diagnostics Incorporated | DGX | 74834L100 | $13.4M | 0.81% | 77,289 | SH |
| 37 | Edwards Lifesciences Corporation | EW | 28176E108 | $12.7M | 0.77% | 149,553 | SH |
| 38 | Analog Devices Inc. | ADI | 032654105 | $12.1M | 0.73% | 44,687 | SH |
| 39 | Verizon Communications Inc. | VZ | 92343V104 | $12.1M | 0.73% | 296,381 | SH |
| 40 | The Bank of New York Mellon Corp. | BK | 064058100 | $11.9M | 0.72% | 102,693 | SH |
| 41 | Costco Wholesale Corporation | COST | 22160K105 | $11.4M | 0.69% | 13,255 | SH |
| 42 | Cummins Inc. | CMI | 231021106 | $11.2M | 0.68% | 21,991 | SH |
| 43 | Waste Management, Inc. | WM | 94106L109 | $11.2M | 0.67% | 50,852 | SH |
| 44 | Unilever PLC | UL | 904767803 | $11.2M | 0.67% | 170,673 | SH |
| 45 | CME Group Inc. | CME | 12572Q105 | $11.1M | 0.67% | 40,787 | SH |
| 46 | SAP SE | SAP | 803054204 | $11.0M | 0.66% | 45,081 | SH |
| 47 | Amgen Inc. | AMGN | 031162100 | $10.8M | 0.65% | 33,098 | SH |
| 48 | Ralph Lauren Corp. | RL | 751212101 | $10.8M | 0.65% | 30,571 | SH |
| 49 | Emerson Electric Co. | EMR | 291011104 | $10.6M | 0.64% | 79,625 | SH |
| 50 | Gilead Sciences Inc. | GILD | 375558103 | $10.4M | 0.62% | 84,481 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-07 | $1.55B | 186 | 0001409427-26-000004 |
| 2025-12-31 | 2026-05-07 | $1.66B | 195 | 0001409427-26-000006 |