BAXTER BROS INC

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CIK 1096783

13F portfolio (2026-Q1)

$810M

Positions

166

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

166

Top 5

27.4%

Top 10

42.3%

Effective N

36.9

HHI

0.027

This quarter

10 new · 0 exit →

By sector

Financials29.7%

Information Technology19.2%

Communication Services12.8%

Industrials12.7%

Energy8.4%

Consumer Discretionary5.6%

Unclassified3.5%

Health Care3.3%

Other4.8%

By market cap

Mega (>$200B)64.9%

Large ($10–200B)29.8%

Unknown4.5%

Mid ($2–10B)0.7%

Small ($300M–2B)0.0%

Micro (<$300M)0.0%

By region

North America96.1%

Other3.5%

Asia-Pacific0.3%

Europe0.1%

Middle East0.0%

By industry group GICS — finer than sector

Industry group	Weight	Names
Software & IT Services	12.28%	6
Unclassified	11.56%	21
Software	9.11%	4
Oil, Gas & Consumable Fuels	8.42%	11
Banks	7.88%	9
Commercial Services & Supplies	6.24%	7
Capital Markets	6.21%	5
Aerospace & Defense	4.88%	8
Specialty Retail	4.42%	7
Road & Rail	4.08%	5
Electrical Equipment & Components	2.68%	3
Pharmaceuticals & Biotechnology	2.45%	8
Technology Hardware & Equipment	2.27%	5
Chemicals	2.27%	9
Insurance	2.11%	5
Media & Entertainment	2.05%	4
Communications Equipment	1.56%	1
Semiconductors & Semiconductor Equipment	1.49%	8
Health Care Equipment & Supplies	1.22%	8
Beverages	1.08%	2
Professional Services	1.03%	1
Utilities	0.99%	4
Machinery	0.73%	6
Hotels, Restaurants & Leisure	0.70%	2
Entertainment	0.43%	1
Transportation Infrastructure	0.28%	1
Construction & Engineering	0.28%	1
Distributors	0.26%	2
Airlines	0.23%	1
Textiles, Apparel & Luxury Goods	0.18%	1
Tobacco	0.16%	2
Diversified Telecommunication Services	0.14%	2
Agricultural Products	0.13%	1
Metals & Mining	0.10%	2
Equity Real Estate Investment Trusts (REITs)	0.05%	2
Life Sciences Tools & Services	0.03%	1

Top holdings

#	Ticker	Name	Sector	Weight
1	BRK.B	BERKSHIRE HATHAWAY INC	Financials	8.04%
2	MSFT	MICROSOFT CORP	Information Technology	5.94%
3	XOM	EXXON MOBIL CORP	Energy	5.72%
4	GOOG	Alphabet Inc.	Communication Services	4.16%
5	V	VISA INC.	Financials	3.52%
6	GOOGL	Alphabet Inc.	Communication Services	3.31%
7	INTU	INTUIT INC.	Information Technology	3.11%
8	AXP	AMERICAN EXPRESS CO	Financials	2.99%
9	UNP	UNION PACIFIC CORP	Industrials	2.79%
10	JPM	JPMORGAN CHASE & CO	Financials	2.76%

146/166 names classified · sector 96.5% of weight · industry 88.4% · mkt cap 95.5%; unclassified names shown, never dropped.

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

top 5/sector, rest → “Other” · 51 quarters

Information TechnologyMSFT, INTU, QCOM, INTC, GE · other

FinancialsV, WFC, BRK.B, AXP, JPM · other

IndustrialsUNP, PAYX, UPS, BA, RTX · other

Communication ServicesCMCSA, DIS, GOOG, META, GOOGL · other

Health CareJNJ, EW, PFE, MDT, DVA · other

MaterialsPG, CL, APD, KMB, ECL · other

Consumer DiscretionarySHW, MCD, HD, SYY, AMZN · other

EnergyXOM, CVX, COP, DVN, BP · other

Consumer StaplesKO, PEP, DEO, MO, SJM · other

UtilitiesTRP, KMI, SO, ED, SRE · other

Real EstateAMT, WY, RYN, ABR, COMP

UnclassifiedBerkshire Hathaway Cl B, Time Warner Inc, EXXON CORP, Alphabet CL C, COMCAST CORP NEW · 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: 96.5% 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 (134 classified)BAXTER BROS INC centroid (Large Core)

FinancialsInformation TechnologyCommunication ServicesIndustrialsEnergyConsumer DiscretionaryHealth CareMaterialsConsumer StaplesUtilitiesReal Estate

Style box summary for BAXTER BROS INC: centroid Large Core. Heaviest cells: Large Growth 31.6%, Large Core 31.5%, Large Value 16.3%.

Classified: 86.9% of book weight (134/166 names) · unclassified 13.1%: BRK.B, VIGI, TRP, BRK.A, TSM, IWM, CHYM, VIG, GLD, VEA +22 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· 166 positions (2026-Q1) · largest first · Δ vs 2025-Q4

#	Security	Shares	Value	Weight	Δ QoQ
1	BRK.BBERKSHIRE HATHAWAY INC DEL	135,942	$65M	8.0%	HOLD
2	MSFTMICROSOFT CORP	129,984	$48M	5.9%	HOLD
3	XOMEXXON MOBIL CORP	273,020	$46M	5.7%	HOLD
4	GOOGALPHABET INC	117,587	$34M	4.2%	TRIM −3%
5	VVISA INC	94,341	$29M	3.5%	HOLD
6	GOOGLALPHABET INC	93,158	$27M	3.3%	TRIM −3%
7	INTUINTUIT	58,305	$25M	3.1%	TRIM −3%
8	AXPAMERICAN EXPRESS CO	79,992	$24M	3.0%	ADD 2%
9	UNPUNION PAC CORP	93,168	$23M	2.8%	TRIM −2%
10	JPMJPMORGAN CHASE & CO	75,924	$22M	2.8%	TRIM −3%
11	METAMETA PLATFORMS INC	37,968	$22M	2.7%	HOLD
12	RTXRTX CORPORATION	85,846	$17M	2.0%	TRIM −10%
13	AMZNAMAZON COM INC	77,229	$16M	2.0%	ADD 7%
14	ADPAUTOMATIC DATA PROCESSING IN	78,635	$16M	2.0%	HOLD
15	MAMASTERCARD INCORPORATED	31,307	$16M	1.9%	HOLD
16	MSMORGAN STANLEY	93,208	$15M	1.9%	HOLD
17	SCHWSCHWAB CHARLES CORP	150,771	$14M	1.7%	ADD 9%
18	CVXCHEVRON CORP NEW	65,110	$13M	1.7%	TRIM −5%
19	QCOMQUALCOMM INC	98,163	$13M	1.6%	TRIM −3%
20	NFLXNETFLIX INC	129,985	$12M	1.5%	TRIM −9%
21	PGPROCTER AND GAMBLE CO	85,359	$12M	1.5%	HOLD
22	GSGOLDMAN SACHS GROUP INC	14,337	$12M	1.5%	TRIM −4%
23	GEGE AEROSPACE	42,532	$12M	1.5%	HOLD
24	HONHONEYWELL INTL INC	44,625	$10M	1.2%	HOLD
25	JNJJOHNSON & JOHNSON	40,809	$10M	1.2%	HOLD
26	VIGIVanguard Whitehall Int'l Div. Apprec. ETF	106,612	$9M	1.2%	ADD 14%
27	TMOTHERMO FISHER SCIENTIFIC INC	18,545	$9M	1.1%	TRIM −4%
28	GEVGE VERNOVA INC	10,385	$9M	1.1%	HOLD
29	PAYXPAYCHEX INC	90,144	$8M	1.0%	TRIM −3%
30	WFCWELLS FARGO CO NEW	103,752	$8M	1.0%	HOLD
31	KOCOCA COLA CO	91,833	$7M	0.9%	TRIM −4%
32	AAPLAPPLE INC	27,286	$7M	0.9%	HOLD
33	SHWSHERWIN WILLIAMS CO	19,692	$6M	0.8%	HOLD
34	HDHOME DEPOT INC	18,666	$6M	0.8%	HOLD
35	CBCHUBB LIMITED	17,878	$6M	0.7%	ADD 7%
36	BXBLACKSTONE INC	47,715	$5M	0.7%	ADD 78%
37	COSTCOSTCO WHSL CORP NEW	5,392	$5M	0.7%	TRIM −2%
38	TXNTEXAS INSTRS INC	26,770	$5M	0.6%	HOLD
39	MKLMARKEL GROUP INC	2,613	$5M	0.6%	ADD 3%
40	NSCNORFOLK SOUTHN CORP	17,410	$5M	0.6%	TRIM −2%
41	WRBBERKLEY W R CORP	72,214	$5M	0.6%	TRIM −6%
42	UBERUBER TECHNOLOGIES INC	65,734	$5M	0.6%	ADD 67%
43	LHXL3HARRIS TECHNOLOGIES INC	13,257	$5M	0.6%	TRIM −7%
44	LLYELI LILLY & CO	4,643	$4M	0.5%	TRIM −4%
45	PSXPHILLIPS 66	22,846	$4M	0.5%	TRIM −6%
46	CSXCSX CORP	98,296	$4M	0.5%	HOLD
47	TRPTC ENERGY CORP	63,605	$4M	0.5%	TRIM −2%
48	MARMARRIOTT INTL INC NEW	11,072	$4M	0.4%	TRIM −3%
49	KMIKINDER MORGAN INC DEL	106,261	$4M	0.4%	HOLD
50	BNYBANK NEW YORK MELLON CORP	29,980	$4M	0.4%	HOLD
51	CMCSACOMCAST CORP NEW	123,577	$4M	0.4%	TRIM −7%
52	LMTLOCKHEED MARTIN CORP	5,840	$4M	0.4%	TRIM −3%
53	DISDISNEY WALT CO	36,400	$4M	0.4%	HOLD
54	TXTTEXTRON INC	38,588	$3M	0.4%	HOLD
55	MMM3M CO	23,171	$3M	0.4%	HOLD
56	EWEDWARDS LIFESCIENCES CORP	39,639	$3M	0.4%	TRIM −8%
57	BLKBLACKROCK INC	3,294	$3M	0.4%	ADD 8%
58	BRK.ABERKSHIRE HATHAWAY INC DEL	4	$3M	0.4%	HOLD
59	APDAIR PRODS & CHEMS INC	9,220	$3M	0.3%	TRIM −7%
60	TSMTAIWAN SEMICONDUCTOR MFG LTD	7,090	$2M	0.3%	HOLD
61	EXPDEXPEDITORS INTL WASH INC	15,875	$2M	0.3%	HOLD
62	DHID R HORTON INC	16,364	$2M	0.3%	TRIM −27%
63	IWMISHARES TR	8,759	$2M	0.3%	HOLD
64	ETNEATON CORP PLC	5,991	$2M	0.3%	ADD 7%
65	MCDMCDONALDS CORP	6,481	$2M	0.2%	HOLD
66	CHYMCHIME FINL INC	106,000	$2M	0.2%	TRIM −5%
67	VIGVANGUARD SPECIALIZED FUNDS	8,758	$2M	0.2%	ADD 17%
68	GLDSPDR GOLD TR	4,347	$2M	0.2%	TRIM −16%
69	FDXFEDEX CORP	5,234	$2M	0.2%	TRIM −2%
70	SYYSYSCO CORP	26,020	$2M	0.2%	TRIM −3%
71	PEPPEPSICO INC	11,618	$2M	0.2%	HOLD
72	NVDANVIDIA CORPORATION	10,087	$2M	0.2%	ADD 57%
73	BACBANK AMERICA CORP	34,262	$2M	0.2%	TRIM −10%
74	PANWPALO ALTO NETWORKS INC	10,416	$2M	0.2%	ADD 39%
75	VEAVANGUARD TAX-MANAGED FDS	26,043	$2M	0.2%	HOLD
76	SPYSTATE STR SPDR S&P 500 ETF T	2,561	$2M	0.2%	TRIM −7%
77	PFEPFIZER INC	54,137	$2M	0.2%	HOLD
78	DEDEERE & CO	2,691	$2M	0.2%	HOLD
79	CTASCINTAS CORP	8,855	$1M	0.2%	HOLD
80	SLMSLM CORP	62,570	$1M	0.2%	TRIM −13%
81	INTCINTEL CORP	29,350	$1M	0.2%	HOLD
82	BKRBAKER HUGHES COMPANY	20,240	$1M	0.2%	ADD 6%
83	ALLALLSTATE CORP	5,884	$1M	0.2%	HOLD
84	CLCOLGATE PALMOLIVE CO	13,815	$1M	0.1%	TRIM −13%
85	MRKMERCK & CO INC	9,567	$1M	0.1%	TRIM −3%
86	QQQINVESCO QQQ TR	1,966	$1M	0.1%	HOLD
87	CTVACORTEVA INC	12,751	$1M	0.1%	TRIM −2%
88	GEHCGE HEALTHCARE TECHNOLOGIES I	14,432	$1M	0.1%	HOLD
89	PMPHILIP MORRIS INTL INC	6,138	$1M	0.1%	TRIM −4%
90	TOSTTOAST INC	37,390	$991,209	0.1%	ADD 75%
91	IDXXIDEXX LABS INC	1,710	$960,832	0.1%	HOLD
92	SYKSTRYKER CORPORATION	2,878	$945,682	0.1%	HOLD
93	VWOVANGUARD INTL EQUITY INDEX F	16,719	$903,662	0.1%	TRIM −6%
94	LOWLOWES COS INC	3,785	$894,320	0.1%	HOLD
95	SOLSSOLSTICE ADVANCED MATLS INC	11,158	$849,793	0.1%	TRIM −12%
96	VTIVANGUARD INDEX FDS	2,571	$824,771	0.1%	TRIM −29%
97	COPCONOCOPHILLIPS	6,233	$822,756	0.1%	TRIM −19%
98	VVVVALVOLINE INC	23,880	$804,278	0.1%	ADD 36%
99	RKLBROCKET LAB CORP	12,451	$799,603	0.1%	HOLD
100	TAT&T INC	26,309	$762,698	0.1%	TRIM −4%
101	AMGNAMGEN INC	2,081	$732,200	0.1%	HOLD
102	CNICANADIAN NATL RY CO	6,921	$711,271	0.1%	TRIM −10%
103	BPBP PLC	14,472	$680,184	0.1%	HOLD
104	CSCOCISCO SYS INC	8,750	$678,896	0.1%	HOLD
105	AZOAUTOZONE INC	200	$675,556	0.1%	HOLD
106	UPSUNITED PARCEL SERVICE INC	6,858	$674,688	0.1%	TRIM −3%
107	IBBISHARES TR	3,812	$643,664	0.1%	ADD 46%
108	VRTXVERTEX PHARMACEUTICALS INC	1,433	$639,892	0.1%	TRIM −2%
109	MDYSPDR S&P MIDCAP 400 ETF TR	1,023	$630,945	0.1%	HOLD
110	SCHFSCHWAB STRATEGIC TR	25,025	$619,369	0.1%	NEW
111	BMYBRISTOL-MYERS SQUIBB CO	9,965	$604,390	0.1%	HOLD
112	ISRGINTUITIVE SURGICAL INC	1,290	$594,677	0.1%	NEW
113	PBAPEMBINA PIPELINE CORP	13,200	$590,832	0.1%	HOLD
114	FISVFISERV INC	10,230	$570,834	0.1%	TRIM −26%
115	NUENUCOR CORP	3,282	$554,986	0.1%	ADD 89%
116	AVGOBROADCOM INC	1,738	$537,928	0.1%	HOLD
117	EMREMERSON ELEC CO	4,100	$537,182	0.1%	HOLD
118	RSPINVESCO EXCHANGE TRADED FD T	2,554	$490,091	0.1%	TRIM −25%
119	CATCATERPILLAR INC	625	$442,788	0.1%	TRIM −7%
120	DVNDEVON ENERGY CORP NEW	8,716	$438,589	0.1%	TRIM −2%
121	EOGEOG RES INC	3,000	$433,710	0.1%	HOLD
122	MCOMOODYS CORP	949	$414,001	0.1%	TRIM −2%
123	IWNISHARES TR	2,135	$404,775	0.0%	HOLD
124	WABWABTEC	1,602	$400,356	0.0%	HOLD
125	TNETTRINET GROUP INC	10,965	$399,455	0.0%	HOLD
126	VZVERIZON COMMUNICATIONS INC	7,795	$391,330	0.0%	HOLD
127	IVVISHARES TR	585	$382,128	0.0%	TRIM −20%
128	TJXTJX COS INC NEW	2,301	$367,470	0.0%	HOLD
129	VEUVANGUARD INTL EQUITY INDEX F	4,585	$344,334	0.0%	ADD 2%
130	QQNITY ELECTRONICS INC	2,944	$339,679	0.0%	HOLD
131	JCIJOHNSON CONTROLS INTERNATION	2,541	$332,744	0.0%	ADD 37%
132	CHDCHURCH & DWIGHT CO INC	3,515	$328,020	0.0%	HOLD
133	ACNACCENTURE PLC IRELAND	1,600	$317,264	0.0%	TRIM −7%
134	MCHPMICROCHIP TECHNOLOGY INC.	4,800	$310,128	0.0%	HOLD
135	CHTRCHARTER COMMUNICATIONS INC	1,365	$294,676	0.0%	TRIM −11%
136	APAAPA CORPORATION	6,930	$294,109	0.0%	NEW
137	LNTALLIANT ENERGY CORP	4,007	$287,542	0.0%	HOLD
138	WBDWARNER BROS DISCOVERY INC	10,414	$285,968	0.0%	TRIM −9%
139	TRVTRAVELERS COMPANIES INC	971	$283,262	0.0%	HOLD
140	IWOISHARES TR	900	$282,429	0.0%	HOLD
141	DPZDOMINOS PIZZA INC	787	$282,368	0.0%	HOLD
142	CCITIGROUP INC	2,486	$281,966	0.0%	HOLD
143	SWKSTANLEY BLACK & DECKER INC	3,914	$278,129	0.0%	NEW
144	SOLVSOLVENTUM CORP	4,239	$276,807	0.0%	HOLD
145	MDTMEDTRONIC PLC	3,165	$274,247	0.0%	HOLD
146	DOCNDIGITALOCEAN HLDGS INC	3,150	$270,207	0.0%	NEW
147	DDDUPONT DE NEMOURS INC	5,894	$269,945	0.0%	HOLD
148	DOWDOW HLDGS INC	6,401	$266,602	0.0%	NEW
149	NEMNEWMONT CORP	2,385	$258,176	0.0%	TRIM −29%
150	MOALTRIA GROUP INC	3,900	$257,361	0.0%	TRIM −11%
151	BSXBOSTON SCIENTIFIC CORP	4,075	$255,706	0.0%	HOLD
152	CROXCROCS INC	2,992	$248,396	0.0%	HOLD
153	AMTAMERICAN TOWER CORP	1,400	$241,612	0.0%	HOLD
154	ORCLORACLE CORP	1,620	$238,318	0.0%	HOLD
155	AMDADVANCED MICRO DEVICES INC	1,159	$235,775	0.0%	HOLD
156	NKENIKE INC	4,440	$234,521	0.0%	HOLD
157	SRESEMPRA	2,350	$228,350	0.0%	TRIM −13%
158	IWFISHARES TR	505	$215,332	0.0%	HOLD
159	KTOSKRATOS DEFENSE & SEC SOLUTIO	3,000	$211,530	0.0%	HOLD
160	CHKPCHECK POINT SOFTWARE TECH LT	1,475	$210,704	0.0%	HOLD
161	ILMNILLUMINA INC	1,680	$207,077	0.0%	HOLD
162	SLBSCHLUMBERGER LTD	3,920	$201,449	0.0%	NEW
163	WASHWASHINGTON TR BANCORP INC	6,000	$200,760	0.0%	NEW
164	ABRARBOR REALTY TRUST INC	21,004	$161,939	0.0%	NEW
165	BTXBLACKROCK TECH AND PRIVATE E	10,000	$66,000	0.0%	NEW
166	SKYXSKYX PLATFORMS CORP	22,500	$25,200	0.0%	HOLD

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

BRK.BBERKSHIRE HATHAWAY INC DEL

143K

140K

138K

136K

137K

136K

$65M

MSFTMICROSOFT CORP

138K

136K

135K

133K

131K

130K

$48M

XOMEXXON MOBIL CORP

280K

278K

275K

277K

276K

273K

$46M

GOOGALPHABET INC

151K

145K

142K

138K

121K

118K

$34M

VVISA INC

102K

100K

98K

96K

94K

$29M

GOOGLALPHABET INC

108K

107K

106K

107K

96K

93K

$27M

INTUINTUIT

60K

58K

$25M

AXPAMERICAN EXPRESS CO

80K

79K

83K

81K

78K

80K

$24M

UNPUNION PAC CORP

106K

105K

103K

97K

95K

93K

$23M

JPMJPMORGAN CHASE & CO

78K

77K

76K

79K

78K

76K

$22M

METAMETA PLATFORMS INC

38K

37K

38K

39K

38K

$22M

RTXRTX CORPORATION

102K

98K

99K

95K

86K

$17M

AMZNAMAZON COM INC

31K

35K

66K

70K

72K

77K

$16M

ADPAUTOMATIC DATA PROCESSING IN

82K

80K

79K

83K

80K

79K

$16M

MAMASTERCARD INCORPORATED

34K

33K

32K

31K

$16M

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.

☆BAXTER BROS INC

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

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

Related· where to look next

BAXTER BROS INC