Thomas Graham, Alan, Irving Kahns - Kahn Brothers Group Portfolio Performance Analysis (Q1 2026)
Investment performance metrics based on historical 13F filings data.
Data Coverage: June 2013 to March 2026 • Initial Portfolio Value: $0.42B
Performance calculated from first filing in our database. This may not represent the investor's entire career.
Portfolio Growth (Since First Filing)
+0.15B
+34.82%
Winning Positions
+35.00%
28 wins / 80 positions
Average Gain (Winners)
$7.82M
+223.15% avg per position
Active Positions
47
46 losing positions
Portfolio Value Over Time
Total Positions Tracked
80
All holdings over time
Win/Loss Ratio
0.61
28 gains / 46 losses
Active vs. Exited
47 / 33
Current positions / Exited
Position Performance
Performance calculated from first appearance in 13F filings. Initial values represent position value when first tracked, not actual purchase prices.
| Symbol | Company | Sector | Entry | Status | Initial Value | Current Value | Gain/Loss | Return % |
|---|---|---|---|---|---|---|---|---|
| BAYRY | Bayer A.G. | Healthcare | Dec 2023 | ACTIVE | $6.58M | $74.78M | $68.20M | +1037.12% |
| C | Citigroup, Inc. | Financial Services | Mar 2022 | ACTIVE | $51.91M | $95.37M | $43.45M | +83.70% |
| OGN | Organon & Co. | Healthcare | Jun 2021 | ACTIVE | $2.17M | $33.17M | $31.00M | +1430.33% |
| GOOG | Alphabet Inc. | Communication Services | Jun 2025 | ACTIVE | $6.59M | $35.01M | $28.41M | +430.84% |
| DIS | Walt Disney Company (The) | Communication Services | Mar 2024 | ACTIVE | $11.49M | $36.52M | $25.03M | +217.74% |
| BMY | Bristol-Myers Squibb Company | Healthcare | Jun 2013 | ACTIVE | $2.48M | $10.33M | $7.86M | +317.13% |
| SEG | Seaport Entertainment | N/A | Sep 2025 | ACTIVE | $13.37M | $19.19M | $5.82M | +43.50% |
| IDT | IDT Corporation | Communication Services | Mar 2022 | ACTIVE | $15.95M | $18.29M | $2.34M | +14.67% |
| XOM | Exxon Mobil Corporation | Energy | Jun 2013 | ACTIVE | $1.62M | $3.10M | $1.48M | +91.14% |
| BB | BlackBerry Limited | Technology | Sep 2013 | EXITED | $3.10M | $4.45M | $1.35M | +43.52% |
Important Note: Data Limitations
These metrics are based on 13F filing data which has significant limitations:
- Quarterly Snapshots Only: 13F filings show positions at quarter-end, not actual transaction prices
- No Transaction Prices: We cannot determine actual buy/sell prices, only end-of-quarter values
- Performance Estimates: Gains/losses are calculated from first appearance to last update using quarterly values
- Missing Data: Intra-quarter trades, dividends, corporate actions, and exact timing are not captured
- Educational Only: These metrics are estimates for understanding general investment patterns, not actual realized returns
Use these metrics for informational and educational purposes only. They represent broad trends, not precise investment performance.