WITTENBERG INVESTMENT MANAGEMENT, INC. — 13F Holdings & Portfolio
CIK 1697790 · latest 13F-HR filed 2026-08-12
WITTENBERG INVESTMENT MANAGEMENT, INC. manages $292.5M in 13F-reported U.S. long-equity assets across 78 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are BRK.B (17.37%), AAPL (9.87%), SIRI (9.44%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 8 new positions and exited 4; 38 existing positions rose in reported value and 18 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-12
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q2 26Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q1 26 → Q2 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
4 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 69.9%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Mar 27, 2026.
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| WITTENBERG, JOEL Control | PRESIDENT & CHIEF COMPLIANCE OFFICER since Apr 1988 | 75% or more | Individual |
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- ALPHABET INC$4.1M +21.2%
- ALPHABET INC$3.8M +16.2%
- TRIPADVISOR INC$3.2M +51.1%
- APPLE INC$2.8M +10.6%
- LIBERTY BROADBAND CORP$2.4M +38.0%
Top Trims
- VERSANT MEDIA GROUP INC-$1.7M -33.7%
- SCRIPPS E W CO OHIO-$1.4M -16.5%
- CABLE ONE INC-$1.1M -50.4%
- TIDEWATER INC NEW-$1.1M -23.0%
- LIBERTY LATIN AMERICA LTD-$739.7K -28.6%
New Positions
- TASKUS INC$1.1M
- NORTHFIELD BANCORP INC DEL$740.2K
- COLUMBIA FINL INC$460.2K
- CHARTER COMMUNICATIONS INC$284.4K
- EASTERN CO$251.6K
Exited Positions
- QVC GROUP INC$343.7K
- BLUE FOUNDRY BANCORP$240.9K
- TOTALENERGIES SE$200.2K
- KELLY SVCS INC$146.7K
WITTENBERG INVESTMENT MANAGEMENT, INC. Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $50.8M | 17.37% | 101,513 | SH |
| 2 | APPLE INC | AAPL | 037833100 | $28.9M | 9.87% | 99,726 | SH |
| 3 | SIRIUSXM HOLDINGS INC | SIRI | 829933100 | $27.6M | 9.44% | 934,864 | SH |
| 4 | ALPHABET INC | GOOG | 02079K107 | $27.3M | 9.35% | 77,406 | SH |
| 5 | ALPHABET INC | GOOGL | 02079K305 | $23.2M | 7.94% | 64,992 | SH |
| 6 | WARNER BROS DISCOVERY INC | WBD | 934423104 | $14.4M | 4.93% | 540,434 | SH |
| 7 | TRIPADVISOR INC | TRIP | 896945201 | $9.4M | 3.22% | 687,580 | SH |
| 8 | LIBERTY BROADBAND CORP | LBRDA | 530307107 | $8.6M | 2.95% | 259,624 | SH |
| 9 | SCRIPPS E W CO OHIO | SSP | 811054402 | $7.3M | 2.50% | 2,636,071 | SH |
| 10 | JPMORGAN CHASE & CO | JPM | 46625H100 | $6.7M | 2.29% | 20,543 | SH |
| 11 | PAR TECHNOLOGY CORP | PAR | 698884103 | $6.4M | 2.19% | 366,945 | SH |
| 12 | LIBERTY LIVE HOLDINGS INC | LLYVA | 530909100 | $4.7M | 1.61% | 46,527 | SH |
| 13 | THRYV HLDGS INC | THRY | 886029206 | $4.4M | 1.50% | 1,111,415 | SH |
| 14 | MICROSOFT CORP | MSFT | 594918104 | $4.4M | 1.49% | 11,695 | SH |
| 15 | TIDEWATER INC NEW | TDW | 88642R109 | $3.6M | 1.23% | 54,062 | SH |
| 16 | LIBERTY LATIN AMERICA LTD | LILA | G9001E102 | $3.6M | 1.23% | 457,241 | SH |
| 17 | LIVE NATION ENTERTAINMENT IN | LYV | 538034109 | $3.4M | 1.17% | 18,726 | SH |
| 18 | VERSANT MEDIA GROUP INC | VSNT | 925283103 | $3.3M | 1.14% | 92,670 | SH |
| 19 | NEXTNAV INC | NN | 65345N106 | $3.2M | 1.08% | 176,800 | SH |
| 20 | BANK OF AMER CORP | BAC | 060505104 | $2.6M | 0.88% | 45,164 | SH |
| 21 | LIBERTY GLOBAL LTD | LBTYA | G61188101 | $2.5M | 0.84% | 191,922 | SH |
| 22 | PRICESMART INC | PSMT | 741511109 | $2.3M | 0.80% | 11,965 | SH |
| 23 | MODERNA INC | MRNA | 60770K107 | $2.3M | 0.78% | 32,500 | SH |
| 24 | APA CORPORATION | APA | 03743Q108 | $2.0M | 0.67% | 60,000 | SH |
| 25 | LIBERTY LATIN AMERICA LTD | LILAK | G9001E128 | $1.9M | 0.63% | 237,563 | SH |
| 26 | JEFFERIES FINANCIAL GROUP IN | JEF | 47233W109 | $1.8M | 0.63% | 36,874 | SH |
| 27 | OCCIDENTAL PETE CORP | OXY | 674599105 | $1.7M | 0.58% | 34,700 | SH |
| 28 | PHINIA INC | PHIN | 71880K101 | $1.7M | 0.58% | 20,457 | SH |
| 29 | LIFECORE BIOMEDICAL INC | LFCR | 514766104 | $1.6M | 0.56% | 314,015 | SH |
| 30 | GOLDMAN SACHS GROUP INC | GS | 38141G104 | $1.6M | 0.56% | 1,621 | SH |
| 31 | LIBERTY MEDIA CORP DEL | FWONA | 531229771 | $1.4M | 0.49% | 16,319 | SH |
| 32 | ATLANTA BRAVES HLDGS INC | BATRK | 047726302 | $1.4M | 0.47% | 26,648 | SH |
| 33 | WELLS FARGO & CO | WFCPL | 949746804 | $1.3M | 0.46% | 1,158 | SH |
| 34 | LIBERTY LIVE HOLDINGS INC | LLYVK | 530909308 | $1.3M | 0.45% | 12,519 | SH |
| 35 | READING INTL INC | RDI | 755408101 | $1.2M | 0.43% | 971,828 | SH |
| 36 | LIBERTY BROADBAND CORP | LBRDK | 530307305 | $1.2M | 0.40% | 34,906 | SH |
| 37 | SPOTIFY TECHNOLOGY S A | SPOT | L8681T102 | $1.2M | 0.40% | 2,525 | SH |
| 38 | TASKUS INC | TASK | 87652V109 | $1.1M | 0.38% | 240,600 | SH |
| 39 | LIMBACH HLDGS INC | LMB | 53263P105 | $1.1M | 0.38% | 14,597 | SH |
| 40 | CABLE ONE INC | CABO | 12685J105 | $1.1M | 0.36% | 20,000 | SH |
| 41 | NETFLIX INC. | NFLX | 64110L106 | $1.0M | 0.35% | 14,280 | SH |
| 42 | CONTANGO SILVER & GOLD INC | CTGO | 21077F100 | $989.7K | 0.34% | 62,680 | SH |
| 43 | WELLS FARGO & CO | WFC | 949746101 | $935.5K | 0.32% | 11,320 | SH |
| 44 | PONCE FINANCIAL GROUP INC | PDLB | 732344106 | $913.4K | 0.31% | 45,806 | SH |
| 45 | LIBERTY MEDIA CORP DEL | FWONK | 531229755 | $808.8K | 0.28% | 8,501 | SH |
| 46 | FIVE POINT HOLDINGS LLC | FPH | 33833Q106 | $769.5K | 0.26% | 146,006 | SH |
| 47 | NORTHFIELD BANCORP INC DEL | NFBK | 66611T108 | $740.2K | 0.25% | 50,253 | SH |
| 48 | AMERICAN EXPRESS CO | AXP | 025816109 | $642.7K | 0.22% | 1,900 | SH |
| 49 | AMAZON COM INC | AMZN | 023135106 | $641.4K | 0.22% | 2,691 | SH |
| 50 | ISHARES TR | IWS | 464287473 | $572.5K | 0.20% | 3,478 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-12 | $292.5M | 78 | 0001062993-26-004208 |
| 2026-03-31 | 2026-05-14 | $269.0M | 74 | 0001062993-26-002625 |
| 2025-12-31 | 2026-02-13 | $260.7M | 72 | 0001062993-26-000921 |
| 2025-09-30 | 2025-11-13 | $252.0M | 75 | 0001062993-25-016732 |
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