WITTENBERG INVESTMENT MANAGEMENT, INC.
Long book
$269.0M
Q1 2026
Positions
74
Top-10 weight
69%
concentration
Last quarter
+13.0%
SPY +14.8%
Turnover
15%
of book per quarter
Strategy in plain words
auto-generated from filingsWITTENBERG INVESTMENT MANAGEMENT, INC. is a diversified fundamental manager, running a $269.0M US long book across 74 positions.
The portfolio is concentrated: the top 10 names carry 69% of the portfolio. Turnover is modest: positions are typically held for years. Current anchor positions: BERKSHIRE HATHAWAY INC-CL B, APPLE INC, SIRIUS XM HOLDINGS INC, ALPHABET INC-CL C, ALPHABET INC-CL A.
Over the last 9 quarters its long book ran on average 1pp per quarter ahead of the S&P 500, beating the index in 7 of 9 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+5.0%
Q2 2024
+6.9%
Q3 2024
+4.8%
Q4 2024
-0.3%
Q1 2025
+3.2%
Q2 2025
+12.9%
Q3 2025
+6.0%
Q4 2025
-2.4%
Q1 2026
+13.0%
Sector allocation
Technology 32%
Communications 29%
Financials 24%
Services media 6%
Industrials 3%
Energy 2%
Consumer discretionary 1%
Healthcare 1%
Long book by quarter
What does WITTENBERG INVESTMENT own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| BRK/B BERKSHIRE HATHAWAY INC-CL B | Financials | 101.5K | $48.6M | 18.1% | -0.6% |
| AAPL APPLE INC | Technology | 102.8K | $26.1M | 9.7% | -1.8% |
| SIRI SIRIUS XM HOLDINGS INC | Communications | 1.1M | $25.6M | 9.5% | +1.4% |
| GOOG ALPHABET INC-CL C | Technology | 82.1K | $23.5M | 8.7% | -3.7% |
| GOOGL ALPHABET INC-CL A | Technology | 66.6K | $19.2M | 7.1% | -2.1% |
| WBD WARNER BROS DISCOVERY INC | Communications | 540.4K | $14.8M | 5.5% | Held |
| SSP EW SCRIPPS CO/THE-A | Communications | 2.4M | $8.8M | 3.3% | +1.8% |
| LBRDA LIBERTY BROADBAND-A | Communications | 124.6K | $6.3M | 2.3% | +38.4% |
| TRIP TRIPADVISOR INC | Technology | 585.3K | $6.2M | 2.3% | +243.8% |
| JPM JPMORGAN CHASE & CO | Financials | 20.6K | $6.1M | 2.2% | -0.5% |
| VSNT VERSANT MEDIA GROUP INC | Communications | 135.9K | $5.0M | 1.9% | New |
| TDW TIDEWATER INC | Industrials | 56.0K | $4.7M | 1.7% | -15.5% |
| PAR PAR TECHNOLOGY CORP/DEL | Technology | 341.9K | $4.6M | 1.7% | New |
| MSFT MICROSOFT CORP | Technology | 11.7K | $4.3M | 1.6% | Held |
| LILA LIBERTY LATIN AMERIC-CL A | Communications | 500.5K | $4.3M | 1.6% | +0.1% |
| LLYVA LIBERTY LIVE HOLDINGS-A | Services media | 46.5K | $4.3M | 1.6% | New |
| THRY THRYV HOLDINGS INC | Services media | 1.1M | $3.0M | 1.1% | +178.9% |
| LYV LIVE NATION ENTERTAINMENT IN | Services media | 18.7K | $2.9M | 1.1% | Held |
| LILAK LIBERTY LATIN AMERIC-CL C | Communications | 293.7K | $2.6M | 1.0% | -2.0% |
| APA APA CORP | Energy | 60.0K | $2.5M | 0.9% | Held |
| LBTYA LIBERTY GLOBAL LTD-A | Communications | 203.4K | $2.5M | 0.9% | +7.0% |
| OXY OCCIDENTAL PETROLEUM CORP | Energy | 34.7K | $2.3M | 0.8% | Held |
| BAC BANK OF AMERICA CORP | Financials | 45.2K | $2.2M | 0.8% | -5.2% |
| CABO CABLE ONE INC | Communications | 23.5K | $2.1M | 0.8% | +45.1% |
| NN NEXTNAV INC | Technology | 128.3K | $2.1M | 0.8% | +6.0% |
| PSMT PRICESMART INC | Consumer discretionary | 12.7K | $1.9M | 0.7% | -4.8% |
| MRNA MODERNA INC | Healthcare | 33.5K | $1.7M | 0.6% | Held |
| PHIN PHINIA INC | Industrials | 23.0K | $1.6M | 0.6% | -2.1% |
| JEF JEFFERIES FINANCIAL GROUP IN | Financials | 37.1K | $1.5M | 0.6% | Held |
| GS GOLDMAN SACHS GROUP INC | Financials | 1.8K | $1.5M | 0.6% | Held |
| LBRDK LIBERTY BROADBAND-C | Communications | 29.3K | $1.5M | 0.5% | -0.6% |
| NFLX NETFLIX INC | Services media | 14.3K | $1.4M | 0.5% | -1.7% |
| WFC 7.5 PERP L WELLS FARGO & COMPANY | — | 1.2K | $1.3M | 0.5% | Held |
| FWONA LIBERTY MEDIA CORP-FORMULA-A | Communications | 16.3K | $1.3M | 0.5% | -0.5% |
| SPOT SPOTIFY TECHNOLOGY SA | Communications | 2.5K | $1.2M | 0.5% | Held |
| LLYVK LIBERTY LIVE HOLDINGS-C | Services media | 12.9K | $1.2M | 0.4% | New |
| LMB LIMBACH HOLDINGS INC | Industrials | 14.6K | $1.1M | 0.4% | Held |
| BATRK ATLANTA BRAVES HOLDINGS IN-C | Services media | 26.6K | $1.1M | 0.4% | -0.5% |
| LFCR LIFECORE BIOMEDICAL INC | Healthcare | 301.8K | $1.1M | 0.4% | +1289.4% |
| RDI READING INTERNATIONAL INC-A | Services media | 986.1K | $1.1M | 0.4% | -0.6% |
| PDLB PONCE FINANCIAL GROUP INC | Financials | 64.2K | $1.1M | 0.4% | Held |
| CTGO CONTANGO SILVER & GOLD INC | Materials | 52.8K | $990K | 0.4% | +41.2% |
| WFC WELLS FARGO & CO | Financials | 11.3K | $901K | 0.3% | -0.9% |
| FWONK LIBERTY MEDIA CORP-FORMULA-C | Communications | 8.5K | $723K | 0.3% | -0.6% |
| G8L GREENLIGHT CAPITAL RE LTD-A | — | 34.4K | $595K | 0.2% | -9.5% |
| AXP AMERICAN EXPRESS CO | Financials | 1.9K | $575K | 0.2% | Held |
| AMZN AMAZON.COM INC | Consumer discretionary | 102.8K | $560K | 0.2% | +3719.3% |
| HGV HILTON GRAND VACATIONS INC | Services media | 14.0K | $548K | 0.2% | Held |
| GLIBK LIBERTY CAPITAL CORP-CL C | Communications | 14.4K | $534K | 0.2% | -0.2% |
| FPH FIVE POINT HOLDINGS LLC-CL A | Real estate | 107.5K | $520K | 0.2% | +44.5% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 14, 2026 | 74 | $269.0M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 13, 2026 | 72 | $260.7M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 13, 2025 | 75 | $252.0M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 11, 2025 | 76 | $229.0M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 12, 2025 | 74 | $221.8M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 13, 2025 | 74 | $254.7M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 13, 2024 | 80 | $311.5M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 81 | $293.5M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 3, 2024 | 82 | $293.4M | canonical | SEC ↗ |
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