Thomas Peterffy Insider Holdings and Latest Transactions
Interactive Brokers Group. Pioneer of electronic trading. Peterffy founded Interactive Brokers and revolutionized market making by introducing early computer-driven trading. He is a prominent advocate for automated, low-cost market access.
As of the latest Q1 2025 public disclosure, Thomas Peterffy (associated with Interactive Brokers Group) reported public holdings or transaction activity worth $37.9B across 2 positions. This page tracks latest holdings, portfolio activity, reported additions, reductions, and top positions from public disclosure data.
Open interactive portfolioLatest insider transaction activity
Thomas Peterffy latest insider transactions summary: Interactive Brokers Group shows top reported positions including Interactive Brokers Group, Inc. — Class B Common Stock (via IBG Holdings) [Indirect] and Interactive Brokers Group, Inc. — Class A common stock [Direct], reported additions such as notable reported positions, and reductions or exits such as notable reported positions.
Latest filing metadata: quarter Q1 2025; report date 2025-02-20; filing date 2025-02-24; disclosure source SEC Form 4.
Thomas Peterffy insider transaction profile and latest holdings overview
Thomas Peterffy's Q1 2025 SEC Form 4 holdings show Interactive Brokers Group reporting 2 positions with a disclosed portfolio value of $37.9B. For readers searching Thomas Peterffy insider holdings, Thomas Peterffy portfolio, Interactive Brokers Group holdings, or latest insider transactions, the latest top holdings include Interactive Brokers Group, Inc. — Class B Common Stock (via IBG Holdings) [Indirect] and Interactive Brokers Group, Inc. — Class A common stock [Direct].
The three largest reported positions add up to roughly 100.0%, which helps readers judge portfolio concentration rather than just headline AUM. The largest reported sector exposure is Financials at 100.0% of the disclosed portfolio. This makes the page useful for comparing the manager's actual disclosed exposure with market narratives around the same names.
The latest change data highlights reported buys such as notable reported positions and reported reductions or exits such as notable reported positions. Those changes should be read as historical disclosure signals, not as real-time trade alerts.
The source metadata lists report date 2025-02-20, filing date 2025-02-24. Public disclosure formats differ by source, so Whale Analyzer labels the data type clearly and avoids presenting every profile as a 13F fund.
Thomas Peterffy portfolio analytics
the top five positions account for 100.0% of disclosed value; the largest sector exposure is Financials at 100.0%; reported buy and sell activity implies roughly 0.0% turnover this period.
Top reported holdings
| Holding | Reported value | Weight | Quarter change |
|---|---|---|---|
| IBKR whale holders Interactive Brokers Group, Inc. — Class B Common Stock (via IBG Holdings) [Indirect] | $37.60B | 99.2% | Held |
| IBKR whale holders Interactive Brokers Group, Inc. — Class A common stock [Direct] | $303.2M | 0.8% | Held |
Top buys
No reported items for this period.
Top sells
No reported items for this period.
Allocation
- Financials: 100.0%
Data notes
Report date: 2025-02-20
Disclosure source: SEC Form 4
SEC Form 4 data reflects public insider disclosures and should be read as a historical record, not a real-time trading alert.
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Frequently asked questions
Thomas Peterffy insider holdings
The Q1 2025 SEC Form 4 profile for Thomas Peterffy and Interactive Brokers Group shows 2 reported positions, $37.9B in disclosed portfolio value, and top holdings including Interactive Brokers Group, Inc. — Class B Common Stock (via IBG Holdings) [Indirect] and Interactive Brokers Group, Inc. — Class A common stock [Direct].
Thomas Peterffy latest insider transactions
The latest tracked change data for Thomas Peterffy highlights reported buys such as notable reported positions and reported sells or reductions such as notable reported positions.
Interactive Brokers Group top holdings
Interactive Brokers Group top holdings are summarized from public disclosures with reported values, weights, portfolio concentration, top buys, top sells, and filing metadata where available.
Thomas Peterffy buys and sells
Use the top buys and top sells sections above to compare Thomas Peterffy's reported additions, reductions, exits, and latest portfolio activity against other tracked investors.
How should I interpret Thomas Peterffy's public disclosure data?
SEC Form 4 data is historical public disclosure information. Use it as a research trail rather than a complete real-time view of the current portfolio.