William Blair & Company’s Bank of Marin Bancorp BMRC Stock Holding History

William Blair & Company’s Portfolio BMRC Stock Details BMRC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$211K	Buy	+7,603	New	+$198K	﹤0.01%	1557
2026 Q1	–	Sell	-7,828	Closed	-$204K	–	1931
2025 Q4	$204K	Buy	+7,828	New	+$201K	﹤0.01%	1461
2025 Q1	–	Sell	-9,230	Closed	-$219K	–	1813
2024 Q4	$219K	Buy	+9,230	New	+$218K	﹤0.01%	1409
2024 Q1	–	Sell	-9,230	Closed	-$203K	–	1797
2023 Q4	$203K	Sell	9,230 -4,000	-30%	-$76.7K	﹤0.01%	1394
2023 Q3	$242K	Hold	13,230	–	–	﹤0.01%	1325
2023 Q2	$234K	Buy	13,230 +819	+7%	+$14.9K	﹤0.01%	1355
2023 Q1	$272K	Hold	12,411	–	–	﹤0.01%	1280
2022 Q4	$408K	Hold	12,411	–	–	﹤0.01%	1108
2022 Q3	$372K	Hold	12,411	–	–	﹤0.01%	1142
2022 Q2	$394K	Hold	12,411	–	–	﹤0.01%	1149
2022 Q1	$435K	Hold	12,411	–	–	﹤0.01%	1217
2021 Q4	$462K	Hold	12,411	–	–	﹤0.01%	1244
2021 Q3	$469K	Buy	12,411 +357	+3%	+$12.4K	﹤0.01%	1173
2021 Q2	$385K	Hold	12,054	–	–	﹤0.01%	1249
2021 Q1	$472K	Hold	12,054	–	–	﹤0.01%	1143
2020 Q4	$414K	Hold	12,054	–	–	﹤0.01%	1146
2020 Q3	$349K	Hold	12,054	–	–	﹤0.01%	1079
2020 Q2	$402K	Hold	12,054	–	–	﹤0.01%	1000
2020 Q1	$362K	Buy	12,054 +54	+0.5%	+$2.13K	﹤0.01%	963
2019 Q4	$541K	Hold	12,000	–	–	﹤0.01%	955
2019 Q3	$498K	Hold	12,000	–	–	﹤0.01%	944
2019 Q2	$492K	Hold	12,000	–	–	﹤0.01%	982
2019 Q1	$488K	Hold	12,000	–	–	﹤0.01%	977
2018 Q4	$495K	Hold	12,000	–	–	﹤0.01%	909
2018 Q3	$503K	Hold	12,000	–	–	﹤0.01%	956
2018 Q2	$485K	Hold	12,000	–	–	﹤0.01%	958
2018 Q1	$414K	Hold	12,000	–	–	﹤0.01%	979
2017 Q4	$408K	Hold	12,000	–	–	﹤0.01%	1029
2017 Q3	$411K	Hold	12,000	–	–	﹤0.01%	1001
2017 Q2	$369K	Hold	12,000	–	–	﹤0.01%	1093
2017 Q1	$411K	Hold	12,000	–	–	﹤0.01%	963
2016 Q4	$419K	Hold	12,000	–	–	﹤0.01%	890
2016 Q3	$298K	Hold	12,000	–	–	﹤0.01%	1012
2016 Q2	$290K	Hold	12,000	–	–	﹤0.01%	995
2016 Q1	$295K	Hold	12,000	–	–	﹤0.01%	940
2015 Q4	$320K	Sell	12,000 -9,896	-45%	-$263K	﹤0.01%	936
2015 Q3	$525K	Sell	21,896 -4,104	-16%	-$99.5K	﹤0.01%	959
2015 Q2	$661K	Hold	26,000	–	–	﹤0.01%	1686
2015 Q1	$661K	Hold	26,000	–	–	﹤0.01%	1659
2014 Q4	$683K	Hold	26,000	–	–	﹤0.01%	1605
2014 Q3	$596K	Hold	26,000	–	–	﹤0.01%	1639
2014 Q2	$592K	Buy	+26,000	New	+$579K	﹤0.01%	1613

Other funds holding BMRC

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

HAM

HoldCo Asset Management Fort Lauderdale, Florida $1.56B AUM 45.42% 1-Year Est. Return

Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $128B AUM 35.83% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

William Blair & Company's BMRC Position: Q2 2026 in Review

William Blair & Company opened a new position in Bank of Marin Bancorp (BMRC) in Q2 2026: 7,603 shares worth $211K. The stake represents ﹤0.01% of the portfolio and ranks #1557 among its holdings. This is a return to the name: William Blair & Company previously reported a position in BMRC as recently as Q4 2025.

William Blair & Company first reported a position in BMRC in Q2 2014 and has held it in 42 quarters since. The position peaked at $683K in Q4 2014. 143 funds tracked by Wall St. Rank hold BMRC as of Q2 2026.

William Blair & Company held 7,603 shares of Bank of Marin Bancorp worth $211K as of Q2 2026.
Bank of Marin Bancorp was a new William Blair & Company position in Q2 2026.
Bank of Marin Bancorp made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1557 holding.
William Blair & Company first reported a position in Bank of Marin Bancorp in Q2 2014 and has held it in 42 quarters since.
William Blair & Company's Bank of Marin Bancorp position peaked at $683K in Q4 2014.
143 funds tracked by Wall St. Rank held Bank of Marin Bancorp as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.