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Boston Common Asset Management 13F Portfolio

Portfolio Manager
Boston Common Asset Management, LLC
Performance
+15.04% (2026 Q2)
AUM (13F)
$1.69B
# of Holdings
186
Performance Rank
Allocation (Top 20)
46.92%
Latest filing
Q2 2026

Boston Common Asset Management, LLC Holdings Map

Top 50 Boston Common Asset Management, LLC Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
TSM
Taiwan Semiconductor Manufacturing Co., Ltd.
7.51%265.3K$126.7M
-7.78%(-22.39K)
2025-Q2: 452.3K shares2025-Q3: 407.1K shares2025-Q4: 542.1K shares2026-Q1: 287.6K shares2026-Q2: 265.3K shares
$139.49(+206.02%)
2026-06-30
NVDA
NVIDIA Corp.
4.33%364.8K$73.0M
-9.17%(-36.85K)
2025-Q2: 402.2K shares2025-Q3: 418.1K shares2025-Q4: 390.1K shares2026-Q1: 401.7K shares2026-Q2: 364.8K shares
$92.27(+145.01%)
2026-06-30
AAPL
Apple Inc.
3.86%225.0K$65.1M
-6.05%(-14.50K)
2025-Q2: 248.5K shares2025-Q3: 262.3K shares2025-Q4: 245.8K shares2026-Q1: 239.5K shares2026-Q2: 225.0K shares
$102.49(+197.97%)
2026-06-30
MSFT
Microsoft Corp.
3.49%157.8K$58.9M
+9.94%(+14.27K)
2025-Q2: 151.5K shares2025-Q3: 148.1K shares2025-Q4: 145.2K shares2026-Q1: 143.6K shares2026-Q2: 157.8K shares
$198.84(+144.45%)
2026-06-30
GOOGL
Alphabet Inc.
3.02%142.5K$50.9M
+1.23%(+1.73K)
2025-Q2: 193.4K shares2025-Q3: 203.2K shares2025-Q4: 175.7K shares2026-Q1: 140.8K shares2026-Q2: 142.5K shares
$165.70(+108.04%)
2026-06-30
AVGO
Broadcom Inc
2.53%113.1K$42.7M
-8.47%(-10.47K)
2025-Q2: 148.5K shares2025-Q3: 131.3K shares2025-Q4: 114.0K shares2026-Q1: 123.5K shares2026-Q2: 113.1K shares
$97.75(+302.82%)
2026-06-30
GOOG
Alphabet Inc.
2.31%110.1K$38.9M
-14.16%(-18.17K)
2025-Q2: 157.5K shares2025-Q3: 154.8K shares2025-Q4: 120.4K shares2026-Q1: 128.3K shares2026-Q2: 110.1K shares
$63.00(+443.85%)
2026-06-30
AMAT
Applied Materials Inc.
2.11%49.2K$35.6M
+6.13%(+2.84K)
2025-Q2: 2.4K shares2025-Q3: 2.4K shares2025-Q4: 33.2K shares2026-Q1: 46.4K shares2026-Q2: 49.2K shares
$259.50(+104.94%)
2026-06-30
MS
Morgan Stanley
1.96%158.0K$33.0M
-1.19%(-1.91K)
2025-Q2: 226.0K shares2025-Q3: 227.0K shares2025-Q4: 212.6K shares2026-Q1: 159.9K shares2026-Q2: 158.0K shares
$86.35(+153.99%)
2026-06-30
V
Visa Inc
1.81%88.8K$30.5M
-6.79%(-6.47K)
2025-Q2: 93.7K shares2025-Q3: 97.3K shares2025-Q4: 93.6K shares2026-Q1: 95.3K shares2026-Q2: 88.8K shares
$154.82(+133.78%)
2026-06-30

About Boston Common Asset Management, LLCโ€™s portfolio

Boston Common Asset Management, LLC reports $1.69B in US-listed equity holdings across 186 positions in its most recent 13F filing. Its largest disclosed positions are TSM (7.5%), NVDA (4.3%) and AAPL (3.9%). The top 20 holdings account for 46.92% of reported assets. Its disclosed equity book has returned +68.83% on a three-year cumulative basis. Figures reflect the Q2 2026 filing.

Portfolio concentration

Portfolio concentration
TSM โ€” 10.6% ($126.68M)NVDA โ€” 6.1% ($73.00M)AAPL โ€” 5.4% ($65.11M)MSFT โ€” 4.9% ($58.88M)GOOGL โ€” 4.2% ($50.92M)AVGO โ€” 3.6% ($42.71M)GOOG โ€” 3.2% ($38.91M)AMAT โ€” 3.0% ($35.57M)MS โ€” 2.8% ($33.04M)V โ€” 2.5% ($30.47M)Other โ€” 53.7% ($643.17M)
46%in top 10
  • TSM10.6%
  • NVDA6.1%
  • AAPL5.4%
  • MSFT4.9%
  • GOOGL4.2%
  • AVGO3.6%
  • GOOG3.2%
  • AMAT3.0%
  • MS2.8%
  • V2.5%
  • Other53.7%

Portfolio changes

What the fund actually did

Every reported change this quarter, grouped by direction. The signal is in the rotation, not any single trade.

Added to
16
MUMicron Technology Inc.+25.0%
MSFTMicrosoft Corp.+9.9%
SCHWThe Charles Schwab Corporation+61.8%
EBAYeBay Inc.+24.5%
+12 more
Trimmed
34
TSMTaiwan Semiconductor Manufacturing Co., Ltd.-7.8%
VRTVertiv Holdings Co-25.9%
NVDANVIDIA Corp.-9.2%
GOOGAlphabet Inc.-14.2%
+30 more

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Source filings

Holdings on this page are parsed from Boston Common Asset Management, LLCโ€™s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1409427). View Boston Common Asset Management, LLCโ€™s 13F filings on SEC

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