Kahn Brothers GroupSuperinvestor
About Kahn Brothers Group’s 13F portfolio
Kahn Brothers Group is an institutional investment manager that discloses its US-listed holdings each quarter through an SEC Form 13F filing. As of , Kahn Brothers Group reported $564.1M across 48 US-listed positions (). Its largest position is Citigroup Inc (C) at 17% of the reported book, and its ten biggest holdings make up 78% of the portfolio. Browse every manager in the fund managers directory, or see the legendary investors we track on the superinvestors page.
| # | Stock | Price | % of portfolio | Shares | Value |
|---|---|---|---|---|---|
| 1 |  C Citigroup Inc | $133.10 +0.69% | 17% | 841K | $95.4M |
| 2 | — Bayer AG Spons ADR | — — | 13% | 6.5M | $74.8M |
| 3 |  FLG Flagstar Financial, Inc. | $13.76 −0.65% | 9.5% | 4.1M | $53.8M |
| 4 |  DIS Walt Disney | $96.65 +1.90% | 6.5% | 379K | $36.5M |
| 5 |  GOOG Alphabet Inc Class C | $326.57 +2.34% | 6.2% | 122K | $35.0M |
| 6 |  SEB Seaboard Corp | $4,610.47 −2.21% | 5.9% | 6K | $33.2M |
| 7 |  OGN Organon & Co | $13.54 +0.15% | 5.9% | 5.5M | $33.2M |
| 8 |  BPAQF BP PLC | $7.23 −1.16% | 5.2% | 622K | $29.2M |
| 9 |  MRK Merck & Co. Inc. | $130.76 −0.24% | 4.8% | 227K | $27.3M |
| 10 |  Z Zillow Group | $32.00 +4.03% | 4.0% | 545K | $22.6M |
| 11 |  SEG Seaport Entmt Group | $26.27 +0.88% | 3.4% | 893K | $19.2M |
| 12 |  PTEN Patterson Uti Energy | $9.41 −7.75% | 3.2% | 1.7M | $18.3M |
| 13 |  IDT IDT Corp | $65.74 +2.24% | 3.2% | 373K | $18.3M |
| 14 |  PFE Pfizer | $24.67 +0.53% | 2.4% | 485K | $13.6M |
| 15 |  MBI M B I A Inc | $5.53 −2.30% | 2.2% | 2.1M | $12.2M |
| 16 |  BMY Bristol-Myers Squibb | $62.56 +0.76% | 1.8% | 170K | $10.3M |
| 17 |  GSK GSK PLC ADR | $51.98 +1.23% | 1.6% | 161K | $8.9M |
| 18 |  XOM ExxonMobil | $154.77 −1.38% | 0.5% | 18K | $3.1M |
| 19 |  GNE Genie Energy | $14.33 +0.07% | 0.4% | 175K | $2.5M |
| 20 |  NVS Novartis AG Sponsored ADR | $156.11 +0.71% | 0.4% | 13K | $2.0M |
| 21 |  FRFHF Fairfax Finl HLDGS LTD Sub VTG | $1,689.99 +2.67% | 0.3% | 1K | $1.7M |
| 22 |  CSX CSX Corp Com | $51.80 −2.69% | 0.3% | 36K | $1.5M |
| 23 | — First Natl BK Alaska Com | — — | 0.3% | 5K | $1.5M |
| 24 |  TRMLF Tourmaline Oil Corp | $45.05 −2.36% | 0.2% | 27K | $1.3M |
| 25 |  JPM JPMorgan Chase | $356.20 +0.85% | 0.1% | 3K | $829K |
Showing 1–25 of 48 positions on this page reported in this 13F.
Tiles are sized by portfolio weight and coloured by sector; the “est.” figure on each tile is the estimated dividend- and split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
“Est. return” = estimated dividend/split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
- Financial Services29%
- Unclassified29%
- Communication Services20%
- Healthcare17%
- Energy3.9%
- Utilities0.5%
- Technology0.3%
- Industrials0.3%
- Consumer Defensive0.1%
- Real Estate0.0%
How this return is calculated
Estimated dividend- and split-adjusted return from the end of the first consecutive reported quarter in which the current holding appears in Bullish Whales’ 13F history, through the manager’s latest reported quarter. Current disclosed holdings only. Start dates differ by holding, changes in position size are not modeled, and positions no longer reported are excluded. Not the manager’s cost basis, purchase date, realized profit or loss, live performance, or portfolio performance.
- AddedOGNOrganon & Co+52.6%$33.2M
- NewZZillow Group—$22.6M
- AddedSEGSeaport Entmt Group+52.4%$19.2M
- AddedMBIM B I A Inc+99.9%$12.2M
- AddedCMCSAComcast Corp New CL A+2.0%$206K
- ReducedCCitigroup Inc−4.0%$95.4M
- Reduced—Bayer AG Spons ADR−3.6%$74.8M
- ReducedFLGFlagstar Financial, Inc.−2.2%$53.8M
- ReducedDISWalt Disney−3.9%$36.5M
- ReducedGOOGAlphabet Inc Class C−9.9%$35.0M
- ReducedSEBSeaboard Corp−19.4%$33.2M
- ReducedBPAQFBP PLC−40.1%$29.2M
- ReducedMRKMerck & Co. Inc.−47.2%$27.3M
- ReducedPTENPatterson Uti Energy−3.0%$18.3M
- ReducedIDTIDT Corp−5.0%$18.3M
Reading Kahn Brothers Group’s 13F portfolio
Kahn Brothers Group’s $564.1M 13F book is spread across 48 reported positions and is highly concentrated — its ten largest positions alone are 78% of the portfolio. A book this concentrated means a small group of names drives most of its performance. Its five largest positions are C, Bayer AG Spons ADR, FLG, DIS and GOOG, led by Citigroup Inc (C) at 17% of the portfolio. The heaviest sector exposure is Financial Services (29%), then Communication Services (20%).
What Kahn Brothers Group changed last quarter
Between 2025-12-31 and Q1 2026, Kahn Brothers Group was a net seller: it opened 1 new positions and added to 4 more, while trimming 31 and closing 7 outright. Against a 48-name book, that is high turnover, pointing to an active reshuffle of the book. Its largest new or increased position was Organon & Co (OGN), and its biggest reduction was Citigroup Inc (C).
What a 13F does and doesn’t reveal
A 13F captures only Kahn Brothers Group’s long positions in US-listed stocks at a single quarter-end, so it is best read as a lagged snapshot rather than a live portfolio. It won’t show shorts, cash, bonds, or holdings listed outside the US, and it never reveals the price paid or the reasoning behind a trade. The signal is in the pattern over time: which names Kahn Brothers Group is building up, trimming, or exiting, and how concentrated the book stays from quarter to quarter.
Frequently asked questions
What is an SEC 13F filing?
A Form 13F is a report that every institutional investment manager with at least $100 million in US-listed securities must file with the SEC within 45 days of each quarter's end. It lists the manager's long positions in US-listed stocks and certain options, with the share count and market value of each. Kahn Brothers Group's profile on this page is built directly from those filings.
How current is the 13F data on Kahn Brothers Group's page?
It reflects Kahn Brothers Group's most recently filed 13F, currently the quarter ending Q1 2026. Because managers have up to 45 days after a quarter closes to file, a 13F is always a slightly lagged view rather than a live portfolio. When Kahn Brothers Group files its next quarterly report, this page refreshes automatically.
Can I see Kahn Brothers Group's complete list of holdings?
This page highlights Kahn Brothers Group's largest positions rather than all 48 names in the filing. The complete, position-by-position 13F is public and available from the SEC's EDGAR database under Kahn Brothers Group's filings.
Does a 13F show everything Kahn Brothers Group owns?
No. A 13F only covers long positions in US-listed stocks and certain options. It leaves out short positions, cash, bonds, commodities, foreign-listed stocks, and private holdings, so it is a partial view of Kahn Brothers Group's book rather than its full strategy or total assets.
Is 13F data investment advice?
No. Everything here is educational. 13F positions are disclosed with a delay, cover only long US-listed holdings, and never explain why Kahn Brothers Group made a trade or at what price. Treat it as a research lens, not a recommendation, and speak with a licensed financial advisor before making investment decisions.
Not investment advice. Holdings data comes from public SEC Form 13F filings, which are filed with a delay of up to 45 days and may be amended later. It describes historical, disclosed positions in US-listed securities only, meaning no shorts, cash, or foreign holdings, and it is not a recommendation. Always do your own research and speak with a licensed financial advisor before making investment decisions.