Bank of Marin Bancorp BMRC Institutional Ownership

NASDAQ BMRC

$27.72 +0.33 (+1.20%)

As of: Sep 10, 2026 · 3:59 PM EDT

Institutions by Trading Activity

143 Institutions

Increased 74 51.7%

Unchanged 35 24.5%

Reduced 34 23.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

69.00%

▲+2.64 pp QoQ

Shares Held by Institutions

11.01Mn

of 15.95Mn outstanding

▲+12.62% QoQ

Shares Outstanding

15.95Mn

4.95Mn held outside 13F filers

Institutional Investors

143

filed 13F for Jun 2026

▲+3 vs prior quarter

Net Shares Added (QoQ)

+1.23Mn

accumulated since last quarter

Value of Holdings

$305.20Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Bank of Marin Bancorp (NASDAQ:BMRC) appears in 143 institutional 13F filings for the quarter ending June 2026.

They owned 69.0% of outstanding stock in June 2026, up from 66.4% the prior quarter.
Their total shares held in BMRC increased 12.62% quarter over quarter, and separately, investors owning Bank of Marin Bancorp increased 22.22% from a year ago.
Of these 143 holders, 74 added to their stakes in Bank of Marin Bancorp, 34 trimmed positions, and 35 made no changes.
The aggregate institutional position in Bank of Marin Bancorp amounted to 11.01Mn shares as of June 2026, up by 1.23Mn shares quarter on quarter, and up 1.23Mn shares year over year.
BlackRock, Inc. leads ownership in BMRC with 1.6Mn shares as of June 30, 2026, equal to 10.03% of outstanding shares.
The biggest buyers of Bank of Marin Bancorp for the quarter ending June 2026 included ALGEBRIS (UK) LTD (217.72K), BlackRock, Inc. (198.45K), Sixth Street Partners Management Company, L.P. (137.43K), Qube Research & Technologies Ltd (105.24K), TWO SIGMA INVESTMENTS, LP (95.0K).
Top sellers of BMRC stock for the quarter ending June 2026 included UBS Group AG (176.06K), DIMENSIONAL FUND ADVISORS LP (122.63K), ACADIAN ASSET MANAGEMENT LLC (84.94K), Prudential Financial Inc (56.4K), RBF Capital, LLC (30.0K).
Per Business Quant, the top 10 investors in BMRC for the quarter ending June 2026 include BlackRock, Inc. (1.6Mn), DIMENSIONAL FUND ADVISORS LP (680.24K), VANGUARD CAPITAL MANAGEMENT LLC (657.94K), ALLIANCEBERNSTEIN L.P. (613.72K), HoldCo Asset Management, LP (504.41K), MANUFACTURERS LIFE INSURANCE COMPANY, THE (456.4K), Ameriprise Financial Inc (420.47K), GEODE CAPITAL MANAGEMENT, LLC (413.17K), TWO SIGMA INVESTMENTS, LP (361.58K), State Street Corp (344.31K).

Form 13F Holdings

143 Institutional Holders

Report period 30 Jun, 2026

Total shares held 11.01Mn

Of outstanding 69.00%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	1,600,224	10.03%	▲198,449	+14.16%	$44.33Mn
2	DIMENSIONAL FUND ADVISORS LP	0000354204	680,239	4.26%	▼122,626	-15.27%	$18.84Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	657,941	4.12%	▲15,269	+2.38%	$18.22Mn
4	ALLIANCEBERNSTEIN L.P.	0001109448	613,724	3.85%	▼9,322	-1.50%	$15.73Mn
5	HoldCo Asset Management, LP	0001724246	504,411	3.16%	0	0.00%	$13.97Mn
6	MANUFACTURERS LIFE INSURANCE COMPANY, THE	0000928047	456,401	2.86%	▼2,411	-0.53%	$12.64Mn
7	Ameriprise Financial Inc	0000820027	420,473	2.64%	▲45,590	+12.16%	$11.65Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	413,173	2.59%	▲22,872	+5.86%	$11.45Mn
9	TWO SIGMA INVESTMENTS, LP	0001179392	361,575	2.27%	▲94,998	+35.64%	$10.02Mn
10	State Street Corp	0000093751	344,314	2.16%	▲4,310	+1.27%	$9.54Mn
11	HEARTLAND ADVISORS INC	0000937394	325,508	2.04%	▲75,508	+30.20%	$9.02Mn
12	ALGEBRIS (UK) LTD	0001700286	293,040	1.84%	▲217,725	+289.09%	$8.09Mn
13	Morgan Stanley	0000895421	271,960	1.70%	▲31,529	+13.11%	$7.53Mn
14	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	0001164833	264,196	1.66%	▲3,600	+1.38%	$7.32Mn
15	CITADEL ADVISORS LLC	0001423053	255,290	1.60%	▲76,537	+42.82%	$7.07Mn
16	Qube Research & Technologies Ltd	0001729829	183,331	1.15%	▲105,241	+134.77%	$5.08Mn
17	AQR CAPITAL MANAGEMENT LLC	0001167557	168,484	1.06%	▲50,835	+43.21%	$4.67Mn
18	Sixth Street Partners Management Company, L.P.	0001812095	137,428	0.86%	▲137,428	0.00%	$3.81Mn
18	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	137,428	0.86%	▲12,043	+9.60%	$3.81Mn
19	Northern Trust Corp	0000073124	134,145	0.84%	▲8,967	+7.16%	$3.72Mn

Showing 1 to 20 of 143 holders