MainStreet Investment Advisors LLC

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CIK 1729854

13F portfolio (2026-Q1)

$665M

Positions

158

Implied 1Y CAGR

modeled · as filed

Long positions in SEC Section 13(f) securities (US-listed stocks, ADRs and ETFs), largest first · Δ vs 2025-Q4. A lagged quarterly snapshot (filed ≤45 days after quarter-end); excludes shorts, options, cash, and shares listed only on non-US exchanges — foreign companies held via a US listing or ADR (e.g. Alibaba, TSMC) ARE included.

Implied return what this book implies · modeled, not advice methodology →

Open in PORT →

As filed = each book applied at its quarter-end (what the reported book did) · As copyable = applied at its statutory 45-day filing deadline (what a 13F follower could have earned).

Computing…

Hypothetical modeled performance constructed with hindsight — not actual results, and not indicative of future results. See the Disclaimer.

Exposures · what this manager owns, by sector & size (2026-Q1)

Holdings

158

Top 5

25.8%

Top 10

39.2%

Effective N

42.8

HHI

0.023

This quarter

11 new · 0 exit →

By sector

Unclassified30.9%

Information Technology18.9%

Financials11.5%

Industrials8.9%

Consumer Discretionary7.4%

Health Care6.7%

Communication Services5.2%

Energy2.7%

Other7.8%

By market cap

Mega (>$200B)40.5%

Unknown31.5%

Large ($10–200B)27.3%

Mid ($2–10B)0.7%

By region

North America69.1%

Other30.9%

By industry group GICS — finer than sector

Industry group	Weight	Names
Unclassified	31.09%	44
Technology Hardware & Equipment	7.45%	8
Pharmaceuticals & Biotechnology	5.76%	8
Semiconductors & Semiconductor Equipment	5.10%	6
Capital Markets	5.06%	6
Software	4.79%	6
Banks	4.68%	7
Software & IT Services	3.95%	3
Specialty Retail	3.79%	4
Machinery	3.25%	8
Aerospace & Defense	3.13%	4
Oil, Gas & Consumable Fuels	2.74%	5
Commercial Services & Supplies	2.72%	5
Utilities	2.31%	5
Hotels, Restaurants & Leisure	1.89%	2
Chemicals	1.79%	4
Beverages	1.28%	1
Electrical Equipment & Components	1.08%	3
Equity Real Estate Investment Trusts (REITs)	0.92%	4
Health Care Equipment & Supplies	0.86%	2
Distributors	0.84%	2
Automobiles & Components	0.74%	3
Tobacco	0.71%	1
Food Products	0.69%	2
Diversified Telecommunication Services	0.68%	2
Insurance	0.67%	4
Professional Services	0.63%	1
Communications Equipment	0.50%	1
Media & Entertainment	0.41%	2
Textiles, Apparel & Luxury Goods	0.17%	1
Entertainment	0.13%	1
Construction Materials	0.10%	2
Life Sciences Tools & Services	0.08%	1

Top holdings

#	Ticker	Name	Sector	Weight
1	IJH	ISHARES TR	Unclassified	6.45%
2	EFA	ISHARES TR	Unclassified	6.05%
3	AAPL	Apple Inc.	Information Technology	5.09%
4	VGSH	VANGUARD SHORT-TERM TREASURY ETF	Unclassified	4.41%
5	MSFT	MICROSOFT CORP	Information Technology	3.79%
6	GOOGL	Alphabet Inc.	Communication Services	2.98%
7	IJR	ISHARES TR	Unclassified	2.88%
8	JPM	JPMORGAN CHASE & CO	Financials	2.80%
9	BLK	BlackRock, Inc.	Financials	2.47%
10	JNJ	JOHNSON & JOHNSON	Health Care	2.31%

115/158 names classified · sector 69.1% of weight · industry 68.9% · mkt cap 68.5%; unclassified names shown, never dropped.

Sector allocation over time · how the GICS mix & top names shifted quarter by quarter

top 5/sector, rest → “Other” · 34 quarters

Information TechnologyAAPL, MSFT, MCHP, NVDA, AVGO · other

FinancialsBLK, JPM, UNH, BRK.B, PYPL · other

IndustrialsHON, WM, PAYX, MMM, CAT · other

Consumer DiscretionaryHD, AMZN, MCD, SBUX, HAS · other

Health CareJNJ, ABBV, PFE, MDT, MRK · other

Communication ServicesGOOGL, VZ, META, DIS, T · other

Consumer StaplesPEP, MO, CVS, INGR, HRL · other

MaterialsPG, DOW, FCX, CMP, NKE · other

EnergyCVX, ENB, EOG, XOM, COP · other

UtilitiesSO, D, AEP, NEE, DUK · other

Real EstatePSA, CCI, ESS, PLD, DOC · other

UnclassifiedIJH, EFA, IJR, IVV, SPIB · other

Sector is classified on each name's CURRENT fundamentals, not point-in-time — apparent sector drift can reflect the market re-rating a holding, not a manager trade. 13F is a lagged quarterly snapshot of long positions in US-listed securities only — foreign companies held via a US listing or ADR ARE included, but shares listed only on non-US exchanges (plus shorts, options and cash) are not. Latest quarter: 69.1% of the book is sector-classified (unclassified names shown, never dropped).

Style box · size × value-growth placement of the reported book (2026-Q1), classified on current fundamentals (not point-in-time) — load it into PORT to overlay your own portfolio

holdings, colored by sector (113 classified)MainStreet Investment Advisors LLC centroid (Large Core)

Information TechnologyFinancialsIndustrialsConsumer DiscretionaryHealth CareCommunication ServicesConsumer StaplesUtilitiesEnergyMaterialsReal Estate

Style box summary for MainStreet Investment Advisors LLC: centroid Large Core. Heaviest cells: Large Growth 26.6%, Large Core 18.3%, Large Value 16.6%.

Classified: 68.3% of book weight (113/158 names) · unclassified 31.7%: IJH, EFA, VGSH, IJR, VGIT, IVV, VWO, BND, ENB, ACWI +35 more. Size: cap 70/20/10 bands; style: value/growth composite on our own metrics — not Morningstar's model.

Contribution holdings-based, any period

No contribution data for this period.

Holdings· 158 positions (2026-Q1) · largest first · Δ vs 2025-Q4

#	Security	Shares	Value	Weight	Δ QoQ
1	IJHISHARES TR	635,079	$43M	6.5%	TRIM −3%
2	EFAISHARES TR	413,831	$40M	6.0%	TRIM −2%
3	AAPLAPPLE INC	133,339	$34M	5.1%	TRIM −5%
4	VGSHVANGUARD SHORT-TERM TREASURY ETF	500,440	$29M	4.4%	HOLD
5	MSFTMICROSOFT CORP	67,969	$25M	3.8%	TRIM −4%
6	GOOGLALPHABET INC	68,831	$20M	3.0%	TRIM −7%
7	IJRISHARES TR	153,949	$19M	2.9%	TRIM −3%
8	JPMJPMORGAN CHASE & CO	63,217	$19M	2.8%	TRIM −2%
9	BLKBLACKROCK INC	17,034	$16M	2.5%	TRIM −2%
10	JNJJOHNSON & JOHNSON	62,882	$15M	2.3%	TRIM −2%
11	VGITVANGUARD SCOTTSDALE FDS	240,037	$14M	2.2%	HOLD
12	CATCATERPILLAR INC	18,570	$13M	2.0%	TRIM −16%
13	NVDANVIDIA CORPORATION	75,220	$13M	2.0%	TRIM −4%
14	AVGOBROADCOM INC	41,419	$13M	1.9%	HOLD
15	ABBVABBVIE INC	53,860	$12M	1.8%	TRIM −3%
16	IVVISHARES TR	17,909	$12M	1.8%	ADD 3%
17	CVXCHEVRON CORP NEW	53,373	$11M	1.7%	TRIM −4%
18	AMZNAMAZON COM INC	50,864	$11M	1.6%	TRIM −4%
19	PGPROCTER AND GAMBLE CO	72,742	$11M	1.6%	TRIM −4%
20	VWOVANGUARD INTL EQUITY INDEX F	191,872	$10M	1.6%	HOLD
21	WMWASTE MGMT INC DEL	44,150	$10M	1.5%	TRIM −3%
22	HDHOME DEPOT INC	27,407	$9M	1.4%	TRIM −5%
23	MCDMCDONALDS CORP	28,153	$9M	1.3%	TRIM −4%
24	PEPPEPSICO INC	54,586	$8M	1.3%	TRIM −8%
25	HONHONEYWELL INTL INC	36,709	$8M	1.2%	TRIM −6%
26	LMTLOCKHEED MARTIN CORP	11,348	$7M	1.0%	HOLD
27	EMREMERSON ELEC CO	47,676	$6M	0.9%	TRIM −5%
28	SOSOUTHERN CO	64,269	$6M	0.9%	TRIM −3%
29	CSCOCISCO SYS INC	71,688	$6M	0.8%	TRIM −6%
30	GSGOLDMAN SACHS GROUP INC	6,147	$5M	0.8%	HOLD
31	WMTWALMART INC	40,587	$5M	0.8%	TRIM −6%
32	MCHPMICROCHIP TECHNOLOGY INC.	77,249	$5M	0.8%	TRIM −5%
33	METAMETA PLATFORMS INC	8,702	$5M	0.7%	TRIM −4%
34	VVISA INC	15,834	$5M	0.7%	TRIM −5%
35	AEPAMERICAN ELEC PWR CO INC	36,378	$5M	0.7%	TRIM −2%
36	MOALTRIA GROUP INC	71,066	$5M	0.7%	TRIM −3%
37	BNDVANGUARD BD INDEX FDS	62,364	$5M	0.7%	HOLD
38	USBUS BANCORP	86,757	$5M	0.7%	TRIM −3%
39	CMECME GROUP INC	14,903	$4M	0.7%	HOLD
40	TSLATESLA INC	11,522	$4M	0.6%	TRIM −3%
41	PAYXPAYCHEX INC	45,295	$4M	0.6%	TRIM −10%
42	ENBENBRIDGE INC	74,866	$4M	0.6%	HOLD
43	MARMARRIOTT INTL INC NEW	11,747	$4M	0.6%	TRIM −6%
44	IBMINTERNATIONAL BUSINESS MACHS	15,736	$4M	0.6%	HOLD
45	MDTMEDTRONIC PLC	43,677	$4M	0.6%	HOLD
46	PSAPUBLIC STORAGE OPER CO	13,715	$4M	0.6%	TRIM −7%
47	MRKMERCK & CO INC	30,745	$4M	0.6%	HOLD
48	VZVERIZON COMMUNICATIONS INC	72,972	$4M	0.6%	TRIM −7%
49	INGRINGREDION INC	32,484	$4M	0.6%	TRIM −4%
50	ACWIISHARES TR	26,114	$4M	0.5%	HOLD
51	PRUPRUDENTIAL FINL INC	36,617	$4M	0.5%	TRIM −3%
52	GDGENERAL DYNAMICS CORP	10,321	$4M	0.5%	TRIM −4%
53	CMICUMMINS INC	6,262	$3M	0.5%	HOLD
54	QCOMQUALCOMM INC	25,968	$3M	0.5%	TRIM −7%
55	MSMORGAN STANLEY	19,272	$3M	0.5%	TRIM −6%
56	CDNSCADENCE DESIGN SYSTEM INC	11,191	$3M	0.5%	TRIM −2%
57	ICEINTERCONTINENTAL EXCHANGE IN	19,653	$3M	0.5%	TRIM −6%
58	PANWPALO ALTO NETWORKS INC	19,271	$3M	0.5%	ADD 14%
59	SCHDSCHWAB STRATEGIC TR	96,275	$3M	0.4%	ADD 27%
60	GPCGENUINE PARTS CO	27,838	$3M	0.4%	TRIM −9%
61	DEDEERE & CO	4,768	$3M	0.4%	TRIM −5%
62	PREFPRINCIPAL EXCHANGE TRADED FD	140,310	$3M	0.4%	ADD 3%
63	BNYBANK NEW YORK MELLON CORP	22,112	$3M	0.4%	HOLD
64	SYYSYSCO CORP	36,613	$3M	0.4%	HOLD
65	BACBANK AMERICA CORP	51,532	$3M	0.4%	TRIM −4%
66	NEENEXTERA ENERGY INC	26,356	$2M	0.4%	TRIM −4%
67	EFIVSPDR SERIES TRUST	37,479	$2M	0.4%	NEW
68	PFEPFIZER INC	83,487	$2M	0.4%	TRIM −9%
69	LLYELI LILLY & CO	2,458	$2M	0.3%	ADD 13%
70	RTXRTX CORPORATION	10,971	$2M	0.3%	NEW
71	SYKSTRYKER CORPORATION	5,778	$2M	0.3%	TRIM −6%
72	EOGEOG RES INC	12,995	$2M	0.3%	TRIM −44%
73	TMOTHERMO FISHER SCIENTIFIC INC	3,595	$2M	0.3%	HOLD
74	CMCSACOMCAST CORP NEW	60,622	$2M	0.3%	HOLD
75	SPSBSPDR SERIES TRUST	55,640	$2M	0.3%	ADD 14%
76	BRK.BBERKSHIRE HATHAWAY INC DEL	3,355	$2M	0.2%	TRIM −3%
77	ORCLORACLE CORP	10,803	$2M	0.2%	TRIM −6%
78	GOOGALPHABET INC	5,249	$2M	0.2%	TRIM −13%
79	ZTSZOETIS INC	12,107	$1M	0.2%	HOLD
80	DVYISHARES TR	9,370	$1M	0.2%	ADD 18%
81	AXPAMERICAN EXPRESS CO	4,672	$1M	0.2%	TRIM −14%
82	DUKDUKE ENERGY CORP NEW	10,459	$1M	0.2%	TRIM −5%
83	AMPAMERIPRISE FINL INC	3,058	$1M	0.2%	TRIM −5%
84	MRVLMARVELL TECHNOLOGY INC	12,732	$1M	0.2%	TRIM −7%
85	UBERUBER TECHNOLOGIES INC	17,113	$1M	0.2%	TRIM −4%
86	IAUISHARES GOLD TR	13,822	$1M	0.2%	TRIM −4%
87	CCICROWN CASTLE INC	14,406	$1M	0.2%	TRIM −17%
88	URIUNITED RENTALS INC	1,548	$1M	0.2%	ADD 6%
89	CTASCINTAS CORP	6,612	$1M	0.2%	TRIM −6%
90	ESGDISHARES TR	11,635	$1M	0.2%	NEW
91	MUBISHARES TR	10,348	$1M	0.2%	TRIM −4%
92	ETNEATON CORP PLC	2,897	$1M	0.2%	ADD 55%
93	IJKISHARES TR	10,273	$1M	0.2%	TRIM −5%
94	SUBISHARES TR	9,599	$1M	0.2%	TRIM −5%
95	NFLXNETFLIX INC	10,563	$1M	0.2%	ADD 41%
96	IWMISHARES TR	4,008	$993,984	0.1%	TRIM −10%
97	AMDADVANCED MICRO DEVICES INC	4,863	$989,280	0.1%	ADD 45%
98	ABTABBOTT LABS	9,454	$970,642	0.1%	ADD 9%
99	XJHISHARES TR	21,025	$953,904	0.1%	HOLD
100	CRMSALESFORCE INC	4,988	$931,110	0.1%	TRIM −7%
101	HSYHERSHEY CO	4,311	$896,214	0.1%	NEW
102	PNCPNC FINL SVCS GROUP INC	4,299	$894,579	0.1%	HOLD
103	SCHBSCHWAB STRATEGIC TR	35,500	$891,050	0.1%	TRIM −2%
104	DISDISNEY WALT CO	9,176	$884,383	0.1%	TRIM −13%
105	TMUST-MOBILE US INC	4,164	$874,565	0.1%	HOLD
106	IJJISHARES TR	6,570	$870,525	0.1%	HOLD
107	MAMASTERCARD INCORPORATED	1,632	$815,445	0.1%	TRIM −6%
108	ESGEISHARES INC	17,920	$814,822	0.1%	TRIM −10%
109	IEMGISHARES INC	11,589	$808,333	0.1%	ADD 9%
110	XOMEXXON MOBIL CORP	4,725	$801,644	0.1%	ADD 145%
111	PLDPROLOGIS INC.	5,443	$719,456	0.1%	ADD 11%
112	AMATAPPLIED MATLS INC	2,091	$714,683	0.1%	TRIM −9%
113	IEFAISHARES TR	7,510	$679,880	0.1%	HOLD
114	XJRISHARES TR	15,169	$660,420	0.1%	NEW
115	PLTRPALANTIR TECHNOLOGIES INC	4,384	$641,292	0.1%	ADD 65%
116	LFUSLITTELFUSE INC	1,864	$632,548	0.1%	ADD 9%
117	XLKSELECT SECTOR SPDR TR	4,378	$581,836	0.1%	TRIM −44%
118	EVRGEVERGY INC	7,088	$580,649	0.1%	HOLD
119	PEVERPURE INC	9,789	$577,943	0.1%	HOLD
120	CHDCHURCH & DWIGHT CO INC	5,987	$558,707	0.1%	TRIM −5%
121	TSCOTRACTOR SUPPLY CO	12,200	$552,660	0.1%	ADD 15%
122	EFVISHARES TR	7,323	$544,465	0.1%	ADD 6%
123	EQIXEQUINIX INC	551	$540,112	0.1%	TRIM −4%
124	WATWATERS CORP	1,810	$539,018	0.1%	HOLD
125	ZIONZIONS BANCORPORATION N A	9,194	$529,758	0.1%	HOLD
126	HXLHEXCEL CORP NEW	6,465	$523,212	0.1%	ADD 3%
127	ANETARISTA NETWORKS INC	3,999	$490,997	0.1%	NEW
128	EFGISHARES TR	4,400	$490,028	0.1%	ADD 13%
129	SLGNSILGAN HLDGS INC	12,412	$481,586	0.1%	TRIM −2%
130	DSIISHARES TR	3,942	$477,731	0.1%	TRIM −74%
131	XLGINVESCO EXCHANGE TRADED FD T	8,565	$467,221	0.1%	HOLD
132	SLBSCHLUMBERGER LTD	9,000	$462,510	0.1%	NEW
133	AMGNAMGEN INC	1,310	$460,924	0.1%	TRIM −7%
134	MLMMARTIN MARIETTA MATLS INC	765	$450,340	0.1%	TRIM −4%
135	BWABORGWARNER INC	8,150	$442,219	0.1%	HOLD
136	VNQVANGUARD INDEX FDS	4,451	$394,804	0.1%	TRIM −3%
137	ADSKAUTODESK INC	1,546	$370,112	0.1%	TRIM −8%
138	ROKROCKWELL AUTOMATION INC	1,031	$370,005	0.1%	TRIM −6%
139	XLBSELECT SECTOR SPDR TR	7,326	$366,080	0.1%	HOLD
140	BNDXVANGUARD CHARLOTTE FDS	7,200	$345,960	0.1%	HOLD
141	VVVANGUARD INDEX FDS	1,135	$339,195	0.1%	HOLD
142	APDAIR PRODS & CHEMS INC	1,131	$328,544	0.0%	TRIM −8%
143	GEGE AEROSPACE	1,081	$306,755	0.0%	NEW
144	RGAREINSURANCE GRP OF AMERICA I	1,473	$300,728	0.0%	TRIM −8%
145	LRCXLAM RESEARCH CORP	1,394	$297,842	0.0%	NEW
146	MKLMARKEL GROUP INC	155	$296,681	0.0%	TRIM −8%
147	VBVANGUARD INDEX FDS	1,105	$289,422	0.0%	TRIM −6%
148	SMMDISHARES TR	3,784	$288,908	0.0%	NEW
149	JCIJOHNSON CONTROLS INTERNATION	2,171	$284,292	0.0%	TRIM −7%
150	BKRBAKER HUGHES COMPANY	4,319	$263,675	0.0%	TRIM −3%
151	LLOEWS CORP	2,400	$256,176	0.0%	HOLD
152	IUSGISHARES TR	1,600	$248,176	0.0%	HOLD
153	IWVISHARES TR	619	$229,451	0.0%	HOLD
154	XLVSELECT SECTOR SPDR TR	1,545	$226,512	0.0%	HOLD
155	TSPAT. Rowe Price US Equity Research ETF	5,465	$223,519	0.0%	HOLD
156	IWRISHARES TR	2,283	$221,976	0.0%	HOLD
157	OSKOSHKOSH CORP	1,395	$205,358	0.0%	NEW
158	OCOWENS CORNING NEW	1,884	$203,886	0.0%	TRIM −37%

Position trends· top 15 holdings · shares held over 6 quarters

green added · red trimmed

Security

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

IJHISHARES TR

783K

759K

725K

686K

655K

635K

$43M

EFAISHARES TR

526K

506K

478K

452K

423K

414K

$40M

AAPLAPPLE INC

170K

163K

158K

150K

140K

133K

$34M

VGSHVANGUARD SHORT-TERM TREASURY ETF

465K

446K

514K

534K

505K

500K

$29M

MSFTMICROSOFT CORP

89K

85K

82K

76K

71K

68K

$25M

GOOGLALPHABET INC

91K

89K

85K

80K

74K

69K

$20M

IJRISHARES TR

192K

185K

174K

166K

159K

154K

$19M

JPMJPMORGAN CHASE & CO

83K

80K

78K

71K

65K

63K

$19M

BLKBLACKROCK INC

21K

20K

19K

17K

$16M

JNJJOHNSON & JOHNSON

78K

75K

73K

70K

64K

63K

$15M

VGITVANGUARD SCOTTSDALE FDS

191K

182K

238K

246K

237K

240K

$14M

CATCATERPILLAR INC

29K

27K

25K

22K

19K

$13M

NVDANVIDIA CORPORATION

79K

81K

79K

78K

75K

$13M

AVGOBROADCOM INC

42K

40K

39K

42K

41K

$13M

ABBVABBVIE INC

67K

64K

63K

61K

55K

54K

$12M

Shares reported each quarter by the largest current holdings. Green = added vs the prior filing of that name, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

☆MainStreet Investment Advisors LLC

Implied return what this book implies · modeled, not advice methodology →

Exposures · what this manager owns, by sector & size (2026-Q1)

By sector

By market cap

By region

By industry group GICS — finer than sector

Top holdings

Sector allocation over time · how the GICS mix & top names shifted quarter by quarter

Style box · size × value-growth placement of the reported book (2026-Q1), classified on current fundamentals (not point-in-time) — load it into PORT to overlay your own portfolio

Contribution holdings-based, any period

Holdings· 158 positions (2026-Q1) · largest first · Δ vs 2025-Q4

Position trends· top 15 holdings · shares held over 6 quarters

Related· where to look next

MainStreet Investment Advisors LLC