Marin Bay Wealth Advisors, LLC

CIK

2109834

Location

SAN ANSELMO, CA

Portfolio Value

Small $190,461,180

Diversification

Diversified

Filing Date

Global Rank

#6,747 / 8,827 ▼ 245 · as of Jun 2026

Top Industry

Semiconductors 12.9%

Period ended 37 days ago

Filed Oct 28, 2026 · 9d

4 quarters · since Dec 2025

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Unknown

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, the newest measured quarter, never from the firm's own description.

Style

Concentrated

11.2 effective positions (12 or fewer)

Turnover

Turnover unknown

It needs four straight quarters of measured turnover

Horizon

Short horizon

Value-weighted holding period 2.9 quarters (under 4)

Closest benchmark: every 13F filer's combined book, active share 57.6%; sector active share 34.3% against the combined 13F book's sector weights.

Over time 3 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

130 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026

Top Position

26.7%

−0.4 pts

Top 5

46.1%

+1.2 pts

Top 10

60.9%

+1.4 pts

HHI

891

Diversified−5

Portfolio Trend

4 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026

Sector	% Portfolio	Value	Positions
Unclassified	44.6%	$84,868,749	35
Technology	20.0%	$38,183,933	21
Financial Services	8.3%	$15,728,069	13
Energy	6.2%	$11,883,213	6
Industrials	6.2%	$11,795,121	25
Communication Services	5.5%	$10,495,813	6
Consumer Cyclical	4.6%	$8,808,538	6
Consumer Defensive	1.9%	$3,676,369	5
Healthcare	1.5%	$2,857,105	7
Utilities	0.7%	$1,311,418	3
Basic Materials	0.3%	$568,899	2
Real Estate	0.1%	$283,953	1

Last Quarter's Activity

Export CSV

Sep 30, 2026 vs Jun 30, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
RKLB	Rocket Lab Corp	+1,880	4,020	$280,113
CRWD	CrowdStrike Holdings, Inc.	+1,606	1,995	$528,176
APH	Amphenol Corp	+1,408	2,624	$221,203
SPCX	Space Exploration Technologies Corp	+1,378	2,983	$450,015
PLTR	Palantir Technologies Inc.	+801	3,822	$714,905
NVDA	Nvidia Corp	+729	31,668	$7,232,337
GOOGL	Alphabet Inc.	+654	8,722	$3,001,065
GLD	Spdr Gold Trust	+626	17,260	$6,573,298
MCD	Mcdonalds Corp	+530	2,644	$610,605
BLW	BLACKROCK Ltd DURATION INCOME TRUST	+420	17,019	$195,548
AMZN	Amazon Com Inc	+392	22,956	$5,719,487
MGV	VANGUARD MORNINGSTAR MEGA CAP VALUE INDEX FUND	+348	4,855	$782,091
PANW	Palo Alto Networks Inc	+318	4,946	$1,965,095
GOOG	Alphabet Inc.	+304	6,351	$2,164,039
ANET	Arista Networks, Inc.	+262	3,703	$753,893
NOW	ServiceNow, Inc.	+138	2,666	$357,270
CVX	Chevron Corp	+135	38,326	$7,826,552
SPY	Spdr S&P 500 ETF Trust	+78	8,006	$6,105,615
V	Visa Inc.	+75	7,385	$2,653,652
JPM	Jpmorgan Chase & Co	+62	12,052	$3,987,163
META	Meta Platforms, Inc.	+58	4,781	$3,467,085
HWM	Howmet Aerospace Inc.	+56	1,204	$272,320
BX	Blackstone Inc.	+37	3,151	$353,195
GEV	GE Vernova Inc.	+36	632	$600,709
MA	Mastercard Inc	+32	2,551	$1,406,799
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
MGK	VANGUARD MEGA CAP GROWTH INDEX FUND	−3,965	10,099	$935,672
NFLX	Netflix Inc	−2,266	8,802	$612,443
OEF	iShares S&P 100 ETF	−1,391	75,221	$28,740,439
NBIS	Nebius Group N.V.	−695	3,180	$750,098
BAC	Bank Of America Corp	−586	16,323	$888,460
WFC	Wells Fargo & Company	−583	20,491	$1,640,304
VRT	Vertiv Holdings Co	−571	5,153	$1,243,470
FAST	Fastenal Co	−507	8,291	$410,653
VZ	Verizon Communications Inc	−347	10,924	$501,083
STRL	Sterling Infrastructure, Inc.	−275	420	$206,547
MU	Micron Technology Inc	−251	1,048	$1,116,235
QQQ	Invesco Qqq Trust, Series 1	−243	13,025	$9,635,504
IVV	iShares Core S&P 500 ETF	−197	14,040	$10,752,534
TSLA	Tesla, Inc.	−192	4,185	$1,484,879
AVGO	Broadcom Inc.	−167	8,487	$2,980,549
KO	Coca Cola Co	−147	5,359	$461,302
AAPL	Apple Inc.	−144	36,486	$12,150,567
XAR	State Street(R) SPDR(R) S&P(R) Aerospace & Defense ETF	−140	1,715	$396,593
VOE	VANGUARD MID-CAP VALUE INDEX FUND	−137	11,690	$2,285,745
NOC	Northrop Grumman Corp	−119	512	$247,541
NEE	Nextera Energy Inc	−96	5,016	$379,911
EME	EMCOR Group, Inc.	−92	1,050	$792,214
ORCL	Oracle Corp	−74	2,820	$387,186
PSX	Phillips 66	−72	3,098	$790,950
AMD	Advanced Micro Devices Inc	−69	2,549	$1,559,376
No positions match the current search.

New Positions

Positions the filer opened this quarter

9 positions

Ticker	Company	Shares	Value
XOM	ExxonMobil Holdings Corp	10,737	$1,747,446
BE	Bloom Energy Corp	1,249	$345,948
TSM	Taiwan Semiconductor Manufacturing Co Ltd	560	$255,466
PFE	Pfizer Inc	8,140	$232,152
SLV	iShares Silver Trust	4,251	$231,722
ADP	Automatic Data Processing Inc	897	$231,479
MRVL	Marvell Technology, Inc.	873	$230,655
MPC	Marathon Petroleum Corp	567	$224,203
ICOP	iShares Copper and Metals Mining ETF	4,000	$212,880
No positions match the current search.

Sold Out

Positions the filer fully exited

7 positions

Ticker	Company	Shares	Value
GLW	Corning Inc	1,024	$261,560
RBC	RBC Bearings INC	395	$254,403
LSTR	Landstar System Inc	1,109	$229,352
GD	General Dynamics Corp	631	$223,525
WDC	Western Digital Corp	329	$210,138
DUK	Duke Energy CORP	1,637	$207,211
REGL	ProShares S&P MidCap 400 Dividend Aristocrats ETF	2,240	$205,116
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

130 tracked positions · $190,461,180 total · filing declares 131 positions · $192,253,875 · as of Sep 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 130 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
OEF	iShares S&P 100 ETF	Reduced	75,221	-1,391	$28,740,439	+2.5%	15.09%
AAPL	Apple Inc. Technology	Reduced	36,486	-144	$12,150,567	+14.6%	6.38%
IVV	iShares Core S&P 500 ETF	Reduced	14,040	-197	$10,752,534	+0.8%	5.65%
QQQ	Invesco Qqq Trust, Series 1	Reduced	13,025	-243	$9,635,504	−1.4%	5.06%
CVX	Chevron Corp Energy	Added	38,326	+135	$7,826,552	+23.6%	4.11%
NVDA	Nvidia Corp Technology	Added	31,668	+729	$7,232,337	+16.8%	3.80%
GLD	Spdr Gold Trust	Added	17,260	+626	$6,573,298	+7.3%	3.45%
SPY	Spdr S&P 500 ETF Trust	Added	8,006	+78	$6,105,615	+3.1%	3.21%
AMZN	Amazon Com Inc Consumer Cyclical	Added	22,956	+392	$5,719,487	+6.4%	3.00%
MSFT	Microsoft Corp Technology	Added	7,962	+15	$4,083,709	+37.8%	2.14%
JPM	Jpmorgan Chase & Co Financial Services	Added	12,052	+62	$3,987,163	+1.6%	2.09%
META	Meta Platforms, Inc. Communication Services	Added	4,781	+58	$3,467,085	+30.3%	1.82%
IVE	iShares S&P 500 Value ETF	Added	13,618	+6	$3,108,717	+0.6%	1.63%
GOOGL	Alphabet Inc. Communication Services	Added	8,722	+654	$3,001,065	+4.1%	1.58%
AVGO	Broadcom Inc. Technology	Reduced	8,487	-167	$2,980,549	−8.8%	1.56%
BRK-B	Berkshire Hathaway Inc Financial Services	Reduced	5,613	-52	$2,794,993	−1.4%	1.47%
V	Visa Inc. Financial Services	Added	7,385	+75	$2,653,652	+5.8%	1.39%
IJR	iShares Core S&P Small-Cap ETF	Reduced	19,114	-66	$2,600,268	−8.6%	1.37%
VOE	VANGUARD MID-CAP VALUE INDEX FUND	Reduced	11,690	-137	$2,285,745	−2.2%	1.20%
MDY	Spdr S&P Midcap 400 ETF Trust	Reduced	3,475	-49	$2,282,067	−7.9%	1.20%
GOOG	Alphabet Inc. Communication Services	Added	6,351	+304	$2,164,039	+1.3%	1.14%
PANW	Palo Alto Networks Inc Technology	Added	4,946	+318	$1,965,095	+24.5%	1.03%
COST	Costco Wholesale Corp Consumer Defensive	Reduced	1,987	-7	$1,808,845	−3.0%	0.95%
XOM	ExxonMobil Holdings Corp Energy	NEW	10,737	NEW	$1,747,446	NEW	0.92%
WFC	Wells Fargo & Company Financial Services	Reduced	20,491	-583	$1,640,304	−5.8%	0.86%
AMD	Advanced Micro Devices Inc Technology	Reduced	2,549	-69	$1,559,376	+2.5%	0.82%
TSLA	Tesla, Inc. Consumer Cyclical	Reduced	4,185	-192	$1,484,879	−19.3%	0.78%
VUG	VANGUARD GROWTH INDEX FUND	Added	15,855	+14	$1,428,694	+4.7%	0.75%
MA	Mastercard Inc Financial Services	Added	2,551	+32	$1,406,799	+8.7%	0.74%
IJS	iShares S&P Small-Cap 600 Value ETF	Added	9,800	+2	$1,255,380	−6.3%	0.66%
VRT	Vertiv Holdings Co Industrials	Reduced	5,153	-571	$1,243,470	−35.1%	0.65%
IEFA	iShares Core MSCI EAFE ETF	Held	12,704	0	$1,230,763	+0.3%	0.65%
ASML	Asml Holding NV Technology	Added	670	+2	$1,213,818	−8.7%	0.64%
MU	Micron Technology Inc Technology	Reduced	1,048	-251	$1,116,235	−25.6%	0.59%
RTX	RTX Corp Industrials	Added	5,710	+6	$1,060,061	−2.0%	0.56%
VLO	Valero Energy Corp Energy	Reduced	2,611	-66	$1,012,049	+45.2%	0.53%
MATX	Matson, Inc. Industrials	Added	4,558	+5	$1,001,119	+14.4%	0.53%
MGK	VANGUARD MEGA CAP GROWTH INDEX FUND	Reduced	10,099	-3,965	$935,672	−24.3%	0.49%
CAT	Caterpillar Inc Industrials	Added	1,146	+1	$929,165	−23.8%	0.49%
LRCX	Lam Research Corp Technology	Held	2,777	0	$912,272	−24.2%	0.48%
BAC	Bank Of America Corp Financial Services	Reduced	16,323	-586	$888,460	−7.8%	0.47%
IJH	iShares Core S&P Mid-Cap ETF	Added	11,993	+16	$862,896	−6.6%	0.45%
EME	EMCOR Group, Inc. Industrials	Reduced	1,050	-92	$792,214	−16.4%	0.42%
PSX	Phillips 66 Energy	Reduced	3,098	-72	$790,950	+47.6%	0.42%
MGV	VANGUARD MORNINGSTAR MEGA CAP VALUE INDEX FUND	Added	4,855	+348	$782,091	+6.2%	0.41%
ANET	Arista Networks, Inc. Technology	Added	3,703	+262	$753,893	+29.0%	0.40%
NBIS	Nebius Group N.V. Communication Services	Reduced	3,180	-695	$750,098	−29.9%	0.39%
ABBV	AbbVie Inc. Healthcare	Reduced	2,784	-19	$728,266	+3.2%	0.38%
PLTR	Palantir Technologies Inc. Technology	Added	3,822	+801	$714,905	+102.8%	0.38%
CSCO	Cisco Systems, Inc. Technology	Added	6,461	+13	$695,397	−8.2%	0.37%

Showing the top 50 of 130 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.