Boston Common Asset Management, LLC

CIK 0001409427 · BOSTON, MA · Quarter end: 2026-06-30 · Filed on: 2026-07-21 · Open the SEC source

Boston Common Asset Management, LLC reported 186 positions worth $1.69B as of June 30, 2026 (13F filed July 21, 2026). Largest holding: TSM (7.5%).

Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$1.69B
2026 Q2
Positions
186
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
32.9%
Est. Net Flow (Q)
2026 Q2
10 / 186 positions shown
#SymbolCompanyTypeValue% Port.Shares1YYTD
1TSMTaiwan Semiconductor Manufacturing Co., Ltd.SH$126.7M7.51%265,251
2NVDANVIDIA Corp.SH$73.0M4.33%364,844
3AAPLApple Inc.SH$65.1M3.86%225,013
4MSFTMicrosoft Corp.SH$58.9M3.49%157,839
5GOOGLAlphabet Inc.SH$50.9M3.02%142,499
6AVGOBroadcom IncSH$42.7M2.53%113,075
7GOOGAlphabet Inc.SH$38.9M2.31%110,135
8AMATApplied Materials Inc.SH$35.6M2.11%49,204
9MSMorgan StanleySH$33.0M1.96%158,039
10VVisa IncSH$30.5M1.81%88,822

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Read the 2026-Q2 quarterly report · 13F Filing Calendar

Frequently Asked Questions

What stocks does Boston Common Asset Management, LLC hold as of Q2 2026?

Boston Common Asset Management, LLC reported 186 positions worth $1.69B in its Q2 2026 13F filing. Largest positions: TSM (7.5%), NVDA (4.3%), AAPL (3.9%), MSFT (3.5%) and GOOGL (3.0%).

What did Boston Common Asset Management, LLC buy in Q2 2026?

No previous quarter is available yet; the comparison appears with the next filing.

What did Boston Common Asset Management, LLC sell in Q2 2026?

No previous quarter is available yet.

13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.