WITTENBERG INVESTMENT MANAGEMENT, INC.

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CIK 1697790

13F portfolio (2026-Q1)

$269M

Positions

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 →

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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

Top 5

53.2%

Top 10

68.8%

Effective N

13.8

HHI

0.073

This quarter

7 new · 0 exit →

By sector

Communication Services50.4%

Financials23.9%

Information Technology15.3%

Industrials3.2%

Consumer Discretionary2.3%

Energy2.0%

Health Care1.2%

Unclassified1.0%

Other0.6%

By market cap

Mega (>$200B)50.4%

Large ($10–200B)20.7%

Mid ($2–10B)10.1%

Small ($300M–2B)9.3%

Micro (<$300M)6.3%

Unknown3.1%

By region

North America98.9%

Other1.0%

Europe0.1%

By industry group GICS — finer than sector

Industry group	Weight	Names
Media & Entertainment	30.89%	19
Unclassified	19.08%	6
Software & IT Services	18.19%	3
Technology Hardware & Equipment	11.39%	2
Banks	4.34%	8
Entertainment	3.66%	5
Oil, Gas & Consumable Fuels	2.04%	4
Marine	1.74%	1
Software	1.61%	1
Pharmaceuticals & Biotechnology	1.20%	3
Capital Markets	1.13%	2
Specialty Retail	1.01%	3
Aerospace & Defense	0.76%	1
Automobiles & Components	0.67%	2
Hotels, Restaurants & Leisure	0.65%	5
Construction & Engineering	0.42%	1
Metals & Mining	0.37%	1
Insurance	0.34%	2
Commercial Services & Supplies	0.26%	3
Real Estate Management & Development	0.19%	1
Equity Real Estate Investment Trusts (REITs)	0.04%	1

Top holdings

#	Ticker	Name	Sector	Weight
1	BRK.B	BERKSHIRE HATHAWAY INC	Financials	18.08%
2	AAPL	Apple Inc.	Information Technology	9.70%
3	SIRI	SIRIUS XM HOLDINGS INC.	Communication Services	9.50%
4	GOOG	Alphabet Inc.	Communication Services	8.75%
5	GOOGL	Alphabet Inc.	Communication Services	7.12%
6	WBD	Warner Bros. Discovery, Inc.	Communication Services	5.52%
7	SSP	E.W. SCRIPPS Co	Communication Services	3.25%
8	LBRDA	Liberty Broadband Corp	Communication Services	2.33%
9	TRIP	TripAdvisor, Inc.	Information Technology	2.32%
10	JPM	JPMORGAN CHASE & CO	Financials	2.25%

69/74 names classified · sector 99.0% of weight · industry 80.9% · mkt cap 96.9%; unclassified names shown, never dropped.

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

top 5/sector, rest → “Other” · 38 quarters

FinancialsBRK.B, WFC, JPM, BAC, USB · other

Communication ServicesGOOG, GOOGL, RDI, SIRI, WBD · other

Information TechnologyAAPL, MSFT, SPB, TRIP, PAR · other

Consumer DiscretionaryPSMT, GTX, AMZN, PHIN, WMT · other

IndustrialsTDW, CAR, LMB, RAIL, NN · other

EnergyBP, APA, OXY, COP, DVN · other

Health CareJNJ, ZTS, IMVT, MRNA, LFCR · other

Real EstateGPMT, NXRT, FPH, FSP

Materials

UnclassifiedLIBERTY MEDIA CORP DEL, WELLS FARGO CO NEW, LIBERTY TRIPADVISOR HLDGS IN, VERSO CORP, NEW YORK REIT INC · 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: 99.0% 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 (39 classified)WITTENBERG INVESTMENT MANAGEMENT, INC. centroid (Mid Core)

Communication ServicesInformation TechnologyFinancialsConsumer DiscretionaryIndustrialsEnergyHealth CareReal Estate

Style box summary for WITTENBERG INVESTMENT MANAGEMENT, INC.: centroid Mid Core. Heaviest cells: Large Growth 28.0%, Small Value 13.5%, Small Growth 6.1%.

Classified: 59.4% of book weight (39/74 names) · unclassified 40.6%: BRK.B, SSP, LBRDA, VSNT, PAR, LILA, LLYVA, LYV, LILAK, LBTYA +25 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· 74 positions (2026-Q1) · largest first · Δ vs 2025-Q4

#	Security	Shares	Value	Weight	Δ QoQ
1	BRK.BBERKSHIRE HATHAWAY INC DEL	101,513	$49M	18.1%	HOLD
2	AAPLAPPLE INC	102,778	$26M	9.7%	HOLD
3	SIRISIRIUSXM HOLDINGS INC	1,107,416	$26M	9.5%	HOLD
4	GOOGALPHABET INC	82,056	$24M	8.7%	TRIM −4%
5	GOOGLALPHABET INC	66,642	$19M	7.1%	TRIM −2%
6	WBDWARNER BROS DISCOVERY INC	540,434	$15M	5.5%	HOLD
7	SSPSCRIPPS E W CO OHIO	2,352,161	$9M	3.3%	HOLD
8	LBRDALIBERTY BROADBAND CORP	124,645	$6M	2.3%	ADD 38%
9	TRIPTRIPADVISOR INC	585,300	$6M	2.3%	ADD 244%
10	JPMJPMORGAN CHASE & CO	20,570	$6M	2.2%	HOLD
11	VSNTVERSANT MEDIA GROUP INC	135,870	$5M	1.9%	NEW
12	TDWTIDEWATER INC NEW	55,962	$5M	1.7%	TRIM −15%
13	PARPAR TECHNOLOGY CORP	341,945	$5M	1.7%	NEW
14	MSFTMICROSOFT CORP	11,695	$4M	1.6%	HOLD
15	LILALIBERTY LATIN AMERICA LTD	500,477	$4M	1.6%	HOLD
16	LLYVALIBERTY LIVE HOLDINGS INC	46,527	$4M	1.6%	NEW
17	THRYTHRYV HLDGS INC	1,102,415	$3M	1.1%	ADD 179%
18	LYVLIVE NATION ENTERTAINMENT IN	18,726	$3M	1.1%	HOLD
19	LILAKLIBERTY LATIN AMERICA LTD	293,690	$3M	1.0%	TRIM −2%
20	APAAPA CORPORATION	60,000	$3M	0.9%	HOLD
21	LBTYALIBERTY GLOBAL LTD	203,422	$2M	0.9%	ADD 7%
22	OXYOCCIDENTAL PETE CORP	34,700	$2M	0.8%	HOLD
23	BACBANK AMERICA CORP	45,164	$2M	0.8%	TRIM −5%
24	CABOCABLE ONE INC	23,500	$2M	0.8%	ADD 45%
25	NNNEXTNAV INC	128,300	$2M	0.8%	ADD 6%
26	PSMTPRICESMART INC	12,716	$2M	0.7%	TRIM −5%
27	MRNAMODERNA INC	33,500	$2M	0.6%	HOLD
28	PHINPHINIA INC	23,007	$2M	0.6%	TRIM −2%
29	JEFJEFFERIES FINL GROUP INC	37,074	$2M	0.6%	HOLD
30	GSGOLDMAN SACHS GROUP INC	1,796	$2M	0.6%	HOLD
31	LBRDKLIBERTY BROADBAND CORP	29,306	$1M	0.5%	HOLD
32	NFLXNETFLIX INC	14,280	$1M	0.5%	HOLD
33	WELLS FARGO CO NEW	1,158	$1M	0.5%	HOLD
34	FWONALIBERTY MEDIA CORP DEL	16,319	$1M	0.5%	HOLD
35	SPOTSPOTIFY TECHNOLOGY S A	2,525	$1M	0.5%	HOLD
36	LLYVKLIBERTY LIVE HOLDINGS INC	12,861	$1M	0.4%	NEW
37	LMBLIMBACH HLDGS INC	14,597	$1M	0.4%	HOLD
38	BATRKATLANTA BRAVES HLDGS INC	26,648	$1M	0.4%	HOLD
39	LFCRLIFECORE BIOMEDICAL INC	301,815	$1M	0.4%	ADD 1289%
40	RDIREADING INTL INC	986,145	$1M	0.4%	HOLD
41	PDLBPONCE FINANCIAL GROUP INC	64,217	$1M	0.4%	HOLD
42	CTGOCONTANGO ORE INC	52,780	$989,625	0.4%	ADD 41%
43	WFCWELLS FARGO CO NEW	11,320	$901,185	0.3%	HOLD
44	FWONKLIBERTY MEDIA CORP DEL	8,501	$722,755	0.3%	HOLD
45	GLREGREENLIGHT CAPITAL RE LTD	34,407	$594,897	0.2%	TRIM −9%
46	AXPAMERICAN EXPRESS CO	1,900	$574,712	0.2%	HOLD
47	AMZNAMAZON COM INC	102,778	$560,455	0.2%	ADD 3719%
48	HGVHILTON GRAND VACATIONS INC	14,000	$547,680	0.2%	HOLD
49	GLIBKGCI LIBERTY INC	14,355	$534,150	0.2%	HOLD
50	FPHFIVE POINT HOLDINGS LLC	107,506	$520,329	0.2%	ADD 44%
51	IWSISHARES TR	3,478	$506,884	0.2%	HOLD
52	PNRGPRIMEENERGY RESOURCES CORP	2,075	$483,164	0.2%	HOLD
53	CARAVIS BUDGET GROUP	3,208	$467,887	0.2%	HOLD
54	JNJJOHNSON & JOHNSON	1,674	$409,190	0.2%	HOLD
55	BYFCBROADWAY FINL CORP DEL	56,156	$407,693	0.2%	HOLD
56	DISDISNEY WALT CO	3,928	$378,581	0.1%	HOLD
57	QVCAQQVC GROUP INC	158,403	$343,735	0.1%	ADD 39%
58	CMGCHIPOTLE MEXICAN GRILL INC	10,100	$323,301	0.1%	HOLD
59	MCYMERCURY GENL CORP NEW	3,659	$322,541	0.1%	HOLD
60	WHWYNDHAM HOTELS & RESORTS INC	3,967	$322,239	0.1%	HOLD
61	TNLTRAVEL PLUS LEISURE CO	4,573	$316,406	0.1%	HOLD
62	GLIBAGCI LIBERTY INC	7,478	$275,564	0.1%	HOLD
63	CETCENTRAL SECS CORP	5,186	$257,537	0.1%	HOLD
64	MCDMCDONALDS CORP	800	$248,632	0.1%	HOLD
65	BLFYBLUE FOUNDRY BANCORP	18,195	$240,902	0.1%	TRIM −26%
66	COSTCOSTCO WHSL CORP NEW	240	$239,143	0.1%	HOLD
67	RKTROCKET COS INC	16,500	$235,125	0.1%	HOLD
68	GTXGARRETT MOTION INC	12,500	$227,125	0.1%	TRIM −61%
69	CLSTCATALYST BANCORP INC	13,669	$226,359	0.1%	HOLD
70	TTETotalEnergies SE	2,200	$200,156	0.1%	NEW
71	KELYAKELLY SVCS INC	16,581	$146,742	0.1%	NEW
72	LBTYKLIBERTY GLOBAL LTD	10,856	$127,341	0.0%	HOLD
73	FSPFRANKLIN STR PPTYS CORP	160,394	$106,582	0.0%	NEW
74	AWXAVALON HLDGS CORP	36,784	$95,271	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

126K

111K

108K

102K

$49M

AAPLAPPLE INC

127K

108K

106K

105K

103K

$26M

SIRISIRIUSXM HOLDINGS INC

1.1M

$26M

GOOGALPHABET INC

102K

93K

92K

86K

85K

82K

$24M

GOOGLALPHABET INC

101K

80K

79K

69K

68K

67K

$19M

WBDWARNER BROS DISCOVERY INC

590K

578K

579K

540K

$15M

SSPSCRIPPS E W CO OHIO

1.8M

2.0M

2.1M

2.2M

2.3M

2.4M

$9M

LBRDALIBERTY BROADBAND CORP

96K

82K

45K

101K

90K

125K

$6M

TRIPTRIPADVISOR INC

70K

126K

170K

585K

$6M

JPMJPMORGAN CHASE & CO

32K

22K

21K

$6M

VSNTVERSANT MEDIA GROUP INC

—

136K

$5M

TDWTIDEWATER INC NEW

21K

31K

80K

66K

56K

$5M

PARPAR TECHNOLOGY CORP

—

342K

$5M

MSFTMICROSOFT CORP

15K

13K

12K

$4M

LILALIBERTY LATIN AMERICA LTD

625K

588K

595K

506K

500K

$4M

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.

☆WITTENBERG INVESTMENT MANAGEMENT, INC.