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Boston Common Asset Management, LLC

Boston Common Asset Management files Q2 2026 13F with 186 reported rows

July 21, 2026 filing Manager profile

Summary: Boston Common Asset Management, LLC filed a public Form 13F-HR for the quarter ended June 30, 2026. The SEC package identifies Boston Common Asset Management, LLC as the filing manager, marks the cover page as a 13F combination report, and lists 186 reported rows with a reported value-field total of 1,686,970,267.

Why it matters: The filing gives due-diligence readers a bounded public snapshot of Boston Common Asset Management's reported listed-security holdings, while the combination-report context and standard 13F limits mean it remains incomplete as a view of the adviser's full business, mandate mix, performance, ESG positioning, or investment outlook.

9AT filing context: Public SEC 13F context for period 2026-06-30 shows 186 information-table rows and a reported value-field total of 1,686,970,267; the cover page marks the filing as a 13F combination report and lists ABN AMRO INVESTMENT SOLUTIONS as an other manager reporting for this manager. Latest public Form ADV context maps Boston Common Asset Management, LLC to CIK 0001409427 / CRD 123558 / SEC file 801-61564 and reports $4,171,137,148 in regulatory AUM/profile scale.

Summary

Boston Common Asset Management, LLC filed a public Form 13F-HR for the quarter ended June 30, 2026. The SEC primary document identifies Boston Common Asset Management, LLC as the filing manager, lists Form 13F file number 028-12579, marks the filing as a 13F combination report, and lists ABN AMRO INVESTMENT SOLUTIONS as an other manager reporting for this manager.

The associated SEC information table lists 186 reported rows and a reported value-field total of 1,686,970,267. The largest parsed reported value-field entries are Taiwan Semiconductor Manufacturing Co., NVIDIA Corp., Apple Inc., Microsoft Corp., and Alphabet Inc. This draft treats those figures as SEC 13F reported fields only, not as AUM, performance, full portfolio exposure, ESG positioning, strategy exposure, or investment advice.

Why it matters

For due-diligence readers, a new 13F can provide a delayed public snapshot of listed long securities and certain reportable instruments. In Boston Common Asset Management’s case, the filing can help frame follow-up questions about reported issuer mix, changes from later filings, the combination-report context, and the limits of using public 13F data alongside adviser-profile context.

The signal is bounded. Form 13F does not show the adviser’s full business, private or non-reportable assets, cash, short positions, non-reportable instruments, performance, investor demand, ESG mandate implementation, or operating quality. The combination-report marker and ABN AMRO other-manager line also mean the reported value fields should be read in filing-package context only and should not be converted into total AUM or investment conclusions.

Source notes

9AT filing context

Public SEC 13F context for the quarter ended June 30, 2026 shows 186 information-table rows and a reported value-field total of 1,686,970,267. The SEC cover page marks the filing as a 13F combination report and lists ABN AMRO INVESTMENT SOLUTIONS as an other manager reporting for this manager. The parsed table’s largest reported value-field rows are Taiwan Semiconductor Manufacturing Co., NVIDIA Corp., Apple Inc., Microsoft Corp., and Alphabet Inc.

Latest public Form ADV context reviewed by 9AT maps Boston Common Asset Management, LLC to CIK 0001409427, CRD 123558, SEC file 801-61564, and $4,171,137,148 in reported regulatory AUM/profile scale. That adviser context is identity and scale background only; it does not validate the 13F holdings, imply investor demand, establish ESG positioning, or support any investment recommendation.

What to watch

Watch future 13F filings for amendments, changes in row count, changes in the largest reported entries, and quarter-to-quarter shifts from later Boston Common filings. Also watch public adviser filings and manager-authored sources for changes to the firm’s registration/profile context, mandate descriptions, or reporting interpretation.

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