What does S.A. Mason LLC hold?

S.A. Mason LLC's largest disclosed positions on the most recent Form 13F-HR filing on SEC EDGAR include NVDA. Full top-holdings list, quarter-over-quarter position changes, and sector allocation breakdown are available at https://13fpro.ai/research/fund/1800911.

What is S.A. Mason LLC's AUM?

S.A. Mason LLC reported approximately $340.6M in 13F-reportable AUM as of 2026-09-30. This figure reflects long US-listed positions disclosed on Form 13F-HR and excludes non-13F-reportable holdings (cash, short positions, certain derivatives, and non-US securities). Separately, the firm reported $528.7M in total regulatory AUM (RAUM) on its most recent Form ADV filing.

Where does 13F Pro source S.A. Mason LLC's holdings?

All S.A. Mason LLC holdings data comes directly from SEC EDGAR Form 13F-HR filings under CIK 1800911. Data refreshes automatically each quarter as new 13F filings are submitted (typically within 45 days of quarter-end). 13F Pro applies no third-party rewrites or estimates.

How often is S.A. Mason LLC's 13F data updated on 13F Pro?

S.A. Mason LLC's holdings update on 13F Pro within hours of each new Form 13F-HR filing on SEC EDGAR. Quarterly position changes, accumulation/distribution flags, and sector allocation are recalculated on each refresh.

S.A. Mason LLC

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1800911

Institutional-grade research for retail investors

Sector Allocation

Other42.0%$142.9M
Technology24.8%$84.3M
Financials7.0%$23.9M
Healthcare6.5%$22.0M
Consumer Discretionary4.8%$16.2M
Consumer Staples4.6%$15.7M
Industrials4.5%$15.4M
Energy2.4%$8.3M
Materials2.2%$7.5M
Utilities0.7%$2.3M

AUM History

13fpro.ai/research/fund/s-a-mason-llc-1800911

Conviction and streaks

Concentrating · top 10 = 31.7%

From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.

$NVDAConviction hold5.5% weight · held 11 quarters

$Conviction hold3.9% weight · held 4 quarters

$Conviction hold3.6% weight · held 11 quarters

$Conviction hold3.5% weight · held 11 quarters

$Conviction hold3.0% weight · held 11 quarters

$Accumulating+329% shares · 10 quarters running

$Accumulating+48% shares · 10 quarters running

$Accumulating+78% shares · 10 quarters running

$Accumulating+43% shares · 10 quarters running

$AMZNAccumulating+124% shares · 10 quarters running

$NVOTrimming-43% shares · 4 quarters running

$WDCTrimming-16% shares · 3 quarters running

$ILMNTrimming-56% shares · 3 quarters running

$PAYXTrimming-85% shares · 3 quarters running

$PANWTrimming-3% shares · 2 quarters running

Largest positions — Q3 2026

NVDA
$18.7M
Vanguard
$13.4M
Vanguard
$12.3M
Vanguard
$11.8M
iShares
$10.4M
Vanguard
$10.0M
MSFT
$8.7M
Vanguard
$7.7M
AAPL
$7.7M
Vanguard
$7.6M
SPY
$6.7M
Vanguard
$6.2M
COST
$4.8M
Vanguard
$4.7M
MU
$4.4M
PANW
$4.3M
PLTR
$4.2M
SNDK
$4.0M
Vanguard
$4.0M
GOOGL
$3.8M

Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.

13fpro.ai/research/fund/s-a-mason-llc-1800911

S.A. Mason LLC 13F holdings — Q3 2026

$340.6M portfolio (+4.6% QoQ) · 284 holdings · Q3 2026 13F · top 10 are 32% of the stock portfolio

1
NVIDIA CORP
$NVDA
$18.7M
5.5% of stocks
+2%This quarter-5.5%Since filed11+ qtrsHeld
AIQuality86.0#3Est. buyEstimated buy price is Pro: unlock with a free trial
2
Vanguard Short Duration Tax-Exm Bd ETF - ETF
$13.4M
3.9% of stocks
+10%This quarter—Since filed—Held
AIQuality—Est. buy—
3
Vanguard S&P 500 ETF - ETF
$12.3M
3.6% of stocks
+11%This quarter—Since filed—Held
AIQuality—Est. buy—
4
Vanguard Total Stock Market ETF - ETF
$11.8M
3.5% of stocks
+11%This quarter—Since filed—Held
AIQuality—Est. buy—
5
iShares Core S&P 500 ETF - ETF
$10.4M
3.0% of stocks
-0.1%This quarter—Since filed—Held
AIQuality—Est. buy—
6
Vanguard Short-Term Tax-Exmpt Bd ETF - ETF
$10.0M
2.9% of stocks
+9%This quarter—Since filed—Held
AIQuality—Est. buy—
7
MICROSOFT CORP
$MSFT
$8.7M
2.5% of stocks
+0.2%This quarter-2.0%Since filed11+ qtrsHeld
AIQuality79.8#30Est. buyEstimated buy price is Pro: unlock with a free trial
8
Vanguard Mid-Cap ETF - ETF
$7.7M
2.3% of stocks
+4%This quarter—Since filed—Held
AIQuality—Est. buy—
9
Apple Inc.
$AAPL
$7.7M
2.3% of stocks
-1%This quarter+0.8%Since filed11+ qtrsHeld
AIQuality75.7#88Est. buyEstimated buy price is Pro: unlock with a free trial
10
Vanguard Small-Cap ETF - ETF
$7.6M
2.2% of stocks
+3%This quarter—Since filed—Held
AIQuality—Est. buy—

#	Company	Value	Weight	This quarter	Since filed	Held	AI quality	Est. buy
1	NVIDIA CORP$NVDA	$18.7M	5.5%	+2%	-5.5%	11+ qtrs	86.0#3	Estimated buy price is Pro: unlock with a free trial
2	Vanguard Short Duration Tax-Exm Bd ETF - ETF	$13.4M	3.9%	+10%	—	—	—	—
3	Vanguard S&P 500 ETF - ETF	$12.3M	3.6%	+11%	—	—	—	—
4	Vanguard Total Stock Market ETF - ETF	$11.8M	3.5%	+11%	—	—	—	—
5	iShares Core S&P 500 ETF - ETF	$10.4M	3.0%	-0.1%	—	—	—	—
6	Vanguard Short-Term Tax-Exmpt Bd ETF - ETF	$10.0M	2.9%	+9%	—	—	—	—
7	MICROSOFT CORP$MSFT	$8.7M	2.5%	+0.2%	-2.0%	11+ qtrs	79.8#30	Estimated buy price is Pro: unlock with a free trial
8	Vanguard Mid-Cap ETF - ETF	$7.7M	2.3%	+4%	—	—	—	—
9	Apple Inc.$AAPL	$7.7M	2.3%	-1%	+0.8%	11+ qtrs	75.7#88	Estimated buy price is Pro: unlock with a free trial
10	Vanguard Small-Cap ETF - ETF	$7.6M	2.2%	+3%	—	—	—	—

All holdings — S.A. Mason LLC (Q3 2026)

Sort

284 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.

#		Company						Held		Source
11	$SPY	SPDR S&P 500 ETF TRUSTetf/fund	—	$6.7M	2.0%	8,826	—	11+ qtrs	—	13F
12	—	Vanguard Intermediate-Term Tax-Exempt Bond ETF - ETFnote	—	$6.2M	1.8%	65K	+3%	—	—	13F
13	$COST	COSTCO WHOLESALE CORP /NEW	Consumer Staples	$4.8M	1.4%	5,219	+0.0%	11+ qtrs	63.8	13F
14	—	Vanguard FTSE Developed Market - ETFetf/fund	—	$4.7M	1.4%	67K	+10%	—	—	13F
15	$MU	MICRON TECHNOLOGY INC	Technology	$4.4M	1.3%	4,110	+2%	8 qtrs	AI quality score is Pro: unlock with a free trial	13F
16	$PANW	Palo Alto Networks Inc	Technology	$4.3M	1.3%	11K	-2%	9 qtrs	AI quality score is Pro: unlock with a free trial	13F
17	$PLTR	Palantir Technologies Inc.	Technology	$4.2M	1.2%	22K	—	11+ qtrs	AI quality score is Pro: unlock with a free trial	13F
18	$SNDK	Sandisk Corp	Technology	$4.0M	1.2%	2,319	-1%	6 qtrs	AI quality score is Pro: unlock with a free trial	13F
19	—	Vanguard Core Tax-Exempt Bond ETF - ETFnote	—	$4.0M	1.2%	56K	+5%	—	—	13F
20	$GOOGL	Alphabet Inc.	Technology	$3.8M	1.1%	11K	+0.3%	11+ qtrs	AI quality score is Pro: unlock with a free trial	13F
21	—	Strive 500 ETF - ETFetf/fund	—	$3.8M	1.1%	77K	+2%	—	—	13F
22	$ABBV	AbbVie Inc.	Healthcare	$3.2M	0.9%	12K	+0.0%	11+ qtrs	AI quality score is Pro: unlock with a free trial	13F
23	$V	VISA INC.	Financials	$3.1M	0.9%	8,702	+7%	11+ qtrsAdded 4 qtrs in a row	AI quality score is Pro: unlock with a free trial	13F
24	$LLY	ELI LILLY & Co	Healthcare	$3.0M	0.9%	2,623	+6%	11+ qtrsAdded 2 qtrs in a row	AI quality score is Pro: unlock with a free trial	13F
25	$CRWD	CrowdStrike Holdings, Inc.	Technology	$2.9M	0.9%	11K	+299%	6 qtrs	AI quality score is Pro: unlock with a free trial	13F
26	$HNI	HNI CORP	Consumer Discretionary	$2.8M	0.8%	62K	-18%
27	$MA	Mastercard Inc	Financials	$2.8M	0.8%	5,062	+2%
28	$AMGN	AMGEN INC	Healthcare	$2.7M	0.8%	6,408	—
29	$GE	GENERAL ELECTRIC CO	Industrials	$2.7M	0.8%	8,562	—
30	$GOOG	Alphabet Inc.	Technology	$2.6M	0.8%	7,733	+11%
31	$CVX	CHEVRON CORP	Energy	$2.6M	0.8%	13K	+0.0%
32	$GLD	SPDR GOLD TRUST	Financials	$2.6M	0.8%	6,713	+1%
33	$META	Meta Platforms, Inc.	Technology	$2.5M	0.8%	3,501	-0.9%
34	$KMB	KIMBERLY CLARK CORP	Materials	$2.5M	0.7%	26K	+10%
35	—	Vanguard Large-Cap ETF - ETF	—	$2.4M	0.7%	6,916	+2%
36	—	SPDR Portfolio S&P 400 Mid Cap - ETF	—	$2.4M	0.7%	38K	+3%
37	$TJX	TJX COMPANIES INC /DE/	Consumer Discretionary	$2.2M	0.7%	17K	—
38	—	Akre Focus ETF - ETF	—	$2.2M	0.6%	41K	-10%
39	$JNJ	JOHNSON & JOHNSON	Healthcare	$2.1M	0.6%	7,848	+0.0%
40	$PG	PROCTER & GAMBLE Co	Consumer Staples	$2.1M	0.6%	14K	+0.2%
41	—	iShares Russell 1000 Growth ET - ETF	—	$2.1M	0.6%	16K	+0.1%
42	—	iShares Short-Term National AMT-Free Muni Bond ETF - ETF	—	$2.1M	0.6%	20K	—
43	—	Vanguard Tax-Exempt Bond Index - ETF	—	$2.0M	0.6%	43K	—
44	$ORLY	O REILLY AUTOMOTIVE INC	Consumer Discretionary	$2.0M	0.6%	23K	+0.8%
45	—	Schwab US Broad Market ETF - ETF	—	$2.0M	0.6%	67K	—
46	$CSCO	CISCO SYSTEMS, INC.	Technology	$1.9M	0.6%	18K	+54%
47	$PEP	PEPSICO INC	Consumer Staples	$1.8M	0.5%	14K	-2%
48	$AMZN	AMAZON COM INC	Consumer Discretionary	$1.8M	0.5%	7,213	+1%
49	$BRK.B	BERKSHIRE HATHAWAY INC	Financials	$1.8M	0.5%	3,543	-2%
50	$QQQ	INVESCO QQQ TRUST, SERIES 1	—	$1.7M	0.5%	2,364	-0.5%
51	—	iShares Core S&P Mid-Cap ETF - ETF	—	$1.7M	0.5%	23K	+0.2%
52	—	Schwab U.S. Mid-Cap ETF - ETF	—	$1.7M	0.5%	49K	-1%
53	$AXP	AMERICAN EXPRESS CO	Financials	$1.6M	0.5%	5,104	-0.3%
54	$JPM	JPMORGAN CHASE & CO	Financials	$1.5M	0.5%	4,683	+0.3%
55	$INTC	INTEL CORP	Technology	$1.5M	0.5%	13K	-0.4%
56	$DELL	Dell Technologies Inc.	Technology	$1.5M	0.5%	2,857	+69%
57	$SYK	STRYKER CORP	Healthcare	$1.4M	0.4%	5,243	+15%
58	$WMT	Walmart Inc.	Consumer Staples	$1.4M	0.4%	14K	+0.0%
59	$IAU	ISHARES GOLD TRUST	Financials	$1.4M	0.4%	18K	+2%
60	$VRT	Vertiv Holdings Co	Technology	$1.4M	0.4%	5,684	+0.0%
61	$MCD	MCDONALDS CORP	Consumer Discretionary	$1.4M	0.4%	5,868	+18%
62	$ISRG	INTUITIVE SURGICAL INC	Healthcare	$1.4M	0.4%	3,320	+21%
63	$FCX	FREEPORT-MCMORAN INC	Materials	$1.3M	0.4%	19K	+2%
64	$KO	COCA COLA CO	Consumer Staples	$1.3M	0.4%	15K	+0.8%
65	$TGT	TARGET CORP	Consumer Staples	$1.3M	0.4%	8,227	+24%
66	—	Vanguard Short-Term Inflation- - ETF	—	$1.3M	0.4%	26K	+0.0%
67	$ABT	ABBOTT LABORATORIES	Healthcare	$1.2M	0.4%	13K	+0.9%
68	—	Schwab US Small-Cap ETF - ETF	—	$1.2M	0.3%	37K	+2%
69	$RTX	RTX Corp	Industrials	$1.2M	0.3%	6,491	+0.1%
70	—	Vanguard Real Estate ETF - ETF	—	$1.2M	0.3%	13K	+8%
71	$NEE	NEXTERA ENERGY INC	Utilities	$1.1M	0.3%	15K	+3%
72	$XOM.R34088	EXXON MOBIL CORP	Energy	$1.1M	0.3%	6,663	+0.1%
73	$CAT	CATERPILLAR INC	Industrials	$1.1M	0.3%	1,317	-0.5%
74	—	iShares Morningstar Mid-Cap ET - ETF	—	$1.1M	0.3%	11K	+0.0%
75	—	Vanguard Growth ETF - ETF	—	$1.1M	0.3%	12K	—
76	$MRVL	Marvell Technology, Inc.	Technology	$1.1M	0.3%	3,998	+436%
77	$AVGO	Broadcom Inc.	Technology	$990K	0.3%	2,819	+0.2%
78	$ROST	ROSS STORES, INC.	Consumer Discretionary	$987K	0.3%	4,228	+2%
79	$NEM	NEWMONT Corp /DE/	Materials	$983K	0.3%	8,523	+9%
80	$AMD	ADVANCED MICRO DEVICES INC	Technology	$981K	0.3%	1,603	—
81	$PH	Parker-Hannifin Corp	Industrials	$970K	0.3%	1,015	—
82	$WFC	WELLS FARGO & COMPANY/MN	Financials	$966K	0.3%	12K	—
83	$IVZ	Invesco Ltd.	Financials	$959K	0.3%	6,701	—
84	$EMR	EMERSON ELECTRIC CO	Industrials	$933K	0.3%	6,018	+0.2%
85	$B	BARRICK MINING CORP	Materials	$933K	0.3%	23K	-3%
86	$HD	HOME DEPOT, INC.	Consumer Discretionary	$933K	0.3%	3,279	—
87	$PSX	Phillips 66	Energy	$927K	0.3%	3,629	—
88	$TOST	Toast, Inc.	Technology	$926K	0.3%	32K	-0.9%
89	$INTU	INTUIT INC.	Technology	$906K	0.3%	3,285	-7%
90	—	VanEck Gold Miners ETF/USA - ETF	—	$858K	0.3%	9,768	+93%
91	—	iShares Core S&P Small-Cap ETF - ETF	—	$843K	0.3%	6,198	—
92	$NSC	NORFOLK SOUTHERN CORP	Industrials	$834K	0.2%	2,700	—
93	$CI	Cigna Group	Healthcare	$801K	0.2%	2,946	+0.0%
94	$ACN	Accenture plc	Technology	$788K	0.2%	4,295	—
95	$GEV	GE Vernova Inc.	Industrials	$773K	0.2%	813	—
96	$LOW	LOWES COMPANIES INC	Consumer Discretionary	$772K	0.2%	4,189	+0.2%
97	$SLV	iShares Silver Trust	Financials	$759K	0.2%	14K	+4%
98	—	iShares Trust - iShares MSCI K - ETF	—	$754K	0.2%	5,161	+0.2%
99	$MRK	Merck & Co., Inc.	Healthcare	$723K	0.2%	4,975	+0.1%
100	—	Vanguard Total International S - ETF	—	$719K	0.2%	8,465	—
101	$EW	Edwards Lifesciences Corp	Healthcare	$713K	0.2%	8,260	+67%
102	$BAC	BANK OF AMERICA CORP /DE/	Financials	$706K	0.2%	13K	+0.0%
103	$TSLA	Tesla, Inc.	Consumer Discretionary	$705K	0.2%	1,988	+0.1%
104	$KMI	KINDER MORGAN, INC.	Energy	$703K	0.2%	23K	+58%
105	—	Vanguard Mid-Cap Value ETF - ETF	—	$673K	0.2%	3,444	—
106	—	Vanguard FTSE Emerging Markets - ETF	—	$671K	0.2%	11K	+0.1%
107	$GD	GENERAL DYNAMICS CORP	Industrials	$669K	0.2%	2,015	—
108	$PHYS	Sprott Physical Gold Trust	Financials	$659K	0.2%	21K	-5%
109	$MCK	MCKESSON CORP	Consumer Staples	$649K	0.2%	760	-6%
110	$ANET	Arista Networks, Inc.	Technology	$649K	0.2%	3,187	+2%
111	$ADP	AUTOMATIC DATA PROCESSING INC	Technology	$646K	0.2%	2,504	+0.2%
112	$NFLX	NETFLIX INC	Communication Services	$645K	0.2%	9,270	+19%
113	$BA	BOEING CO	Industrials	$645K	0.2%	3,465	+0.5%
114	$ADBE	ADOBE INC.	Technology	$635K	0.2%	2,645	-7%
115	$ROL	ROLLINS INC	Industrials	$628K	0.2%	21K	-1%
116	$LH	LABCORP HOLDINGS INC.	Healthcare	$618K	0.2%	2,006	—
117	$GRMN	GARMIN LTD	Technology	$617K	0.2%	2,150	—
118	$WT	WisdomTree, Inc.	Financials	$610K	0.2%	9,450	—
119	$IVZ	Invesco Ltd.	Financials	$609K	0.2%	11K	—
120	—	DFA Tax-Managed US Small Cap - ETF	—	$603K	0.2%	7,783	+3%
121	$PM	Philip Morris International Inc.	Consumer Staples	$591K	0.2%	3,100	+0.2%
122	—	Vanguard High Dividend Yield E - ETF	—	$590K	0.2%	3,803	-3%
123	$COP	CONOCOPHILLIPS	Energy	$579K	0.2%	4,627	+0.0%
124	$ORCL	ORACLE CORP	Technology	$576K	0.2%	4,196	+0.7%
125	$NVS	NOVARTIS AG	Healthcare	$576K	0.2%	4,040	—
126	$STX	Seagate Technology Holdings plc	Technology	$574K	0.2%	622	+0.3%
127	—	Vanguard Total Bond Market ETF - ETF	—	$571K	0.2%	8,133	—
128	$MPC	Marathon Petroleum Corp	Energy	$570K	0.2%	1,442	—
129	$BBY	BEST BUY CO INC	Consumer Discretionary	$555K	0.2%	6,295	New
130	$DE	DEERE & CO	Industrials	$551K	0.2%	820	—
131	$SHOP	SHOPIFY INC.	Technology	$530K	0.2%	3,574	New
132	$VRTX	VERTEX PHARMACEUTICALS INC / MA	Healthcare	$524K	0.1%	1,002	New
133	—	Nestle S A Reg B Adr - ADR	—	$522K	0.1%	5,748	—
134	—	ProShares S&P MidCap 400 Dividend Aristocrats - ETF	—	$509K	0.1%	5,889	+0.1%
135	—	Vanguard Dividend Appreciation - ETF	—	$505K	0.1%	2,164	—
136	$D	DOMINION ENERGY, INC	Utilities	$491K	0.1%	8,115	—
137	$KGC	KINROSS GOLD CORP	Materials	$489K	0.1%	20K	—
138	—	Vanguard Small-Cap Growth ETF - ETF	—	$488K	0.1%	1,444	—
139	$JKHY	JACK HENRY & ASSOCIATES INC	Technology	$467K	0.1%	3,259	+2%
140	$YUM	YUM BRANDS INC	Consumer Discretionary	$465K	0.1%	3,408	—
141	—	iShares Russell 2000 ETF - ETF	—	$461K	0.1%	1,660	—
142	$FTNT	Fortinet, Inc.	Technology	$457K	0.1%	2,555	+28%
143	$IAUM	iShares Gold Trust Micro	Financials	$456K	0.1%	11K	—
144	$EOG	EOG RESOURCES INC	Energy	$454K	0.1%	3,298	—
145	$XYL	Xylem Inc.	Industrials	$450K	0.1%	4,446	—
146	$DGX	QUEST DIAGNOSTICS INC	Healthcare	$443K	0.1%	1,900	—
147	—	Vanguard Extended Market ETF - ETF	—	$442K	0.1%	1,910	—
148	$WT	WisdomTree, Inc.	Financials	$436K	0.1%	6,079	—
149	$SPGI	S&P Global Inc.	Financials	$435K	0.1%	1,102	+5%
150	$AMAT	APPLIED MATERIALS INC /DE	Technology	$428K	0.1%	836	-19%

What changed in Q3 2026

Against the previous quarter's 13F: 10 new, 108 added to, 41 trimmed, 7 sold out. Share-count changes; largest moves by dollar size first.

New positions (10)

$BBYBEST BUY CO INC$555K
first bought this quarter
$SHOPSHOPIFY INC.$530K
first bought this quarter
$VRTXVERTEX PHARMACEUTICALS INC / MA$524K
first bought this quarter
$GRALGRAIL, Inc.$168K
first bought this quarter
JPMorgan Nasdaq Equity Premium Income ETF - ETF$131K
first bought this quarter
$TXNTEXAS INSTRUMENTS INC$126K
first bought this quarter

+4 more in the Excel export

Added to (108)

$CRWDCrowdStrike Holdings, Inc.+299%
now $2.9M · held 6 qtrs
Vanguard S&P 500 ETF - ETF+11%
now $12.3M
Vanguard Total Stock Market ETF - ETF+11%
now $11.8M
Vanguard Short Duration Tax-Exm Bd ETF - ETF+10%
now $13.4M
$MRVLMarvell Technology, Inc.+436%
now $1.1M · held 2 qtrs, 2 adds in a row
Vanguard Short-Term Tax-Exmpt Bd ETF - ETF+9%
now $10.0M

+102 more in the Excel export

Trimmed (41)

$HNIHNI CORP-18%
now $2.8M · held 2 qtrs
Akre Focus ETF - ETF-10%
now $2.2M
$PANWPalo Alto Networks Inc-2%
now $4.3M · held 9 qtrs
$AMATAPPLIED MATERIALS INC /DE-19%
now $428K · held 3 qtrs
$AAPLApple Inc.-1%
now $7.7M · held 11+ qtrs
$INTUINTUIT INC.-7%
now $906K · held 11+ qtrs, 2 trims in a row

+35 more in the Excel export

Sold out (7)

$UNHUNITEDHEALTH GROUP INCwas $986K
held 1 qtr
$RKLBRocket Lab Corpwas $203K
held 1 qtr
$PRGOPERRIGO Co plcwas $156K
held 1 qtr
$VKTXViking Therapeutics, Inc.was $113K
iShares U.S. Small-Cap Equity Factor ETF - ETFwas $104K
$HELEHELEN OF TROY LTDwas $102K

+1 more in the Excel export

Firm AUM (Form ADV): $528.7M as of 2025-12-31 · SEC IAPD

Holdings by quarter

Every 13F S.A. Mason LLC has filed, 27 earlier quarters. Pick one to see what it held then.

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Q3 2026 13F filed with the SEC on Oct 13, 2026. Prices are closing prices as of Oct 26, 2026.

Average quality of S.A. Mason's top 20 holdings: 79/100 (our AI quality score, weighted by position size; 18 of the 20 are scored)

Top 10 since filing

-3.7%

Value-weighted move of the 10 largest stock positions

Turnover

Last quarter; 8% over the last 4

Top 10 weight

32%

Share of the stock portfolio in its 10 largest positions

Held 4+ quarters

94%

Share of portfolio value in positions held a year or more

Highest-quality names it owns(among its 100 largest positions)

The 8 highest-scoring companies in this portfolio are a Pro feature.

How these are measured

Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q1 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.

Portfolio Overview

S.A. Mason LLC disclosed 284 positions worth $340.6M in its Form 13F-HR for Q3 2026, led by $NVDA (NVIDIA CORP) at 5.5% of the equity portfolio. During the quarter the fund opened 10 new positions and exited 7 — including a new stake in $BBY and a full exit from $UNH. The portfolio is most concentrated in Other (42.0% of disclosed assets). All figures are sourced directly from S.A. Mason LLC’s Form 13F-HR filing with the SEC under CIK 1800911.

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AI-Powered Hedge Fund Analysis: S.A. Mason LLC

13F Pro is an AI hedge fund tracker and stock research platform. For S.A. Mason LLC (SEC CIK: 1800911), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in S.A. Mason LLC's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.