Sean S. Cairncross Stock Trades
Director, Office of the National Cyber Director
- Trades on file
- 25
- Buys / sells
- 14 / 11
- Last trade
- Dec 2, 2025
- Typical amount
- $15,001 – $50,000
Sean S. Cairncross's trading activity
Sean S. Cairncross has 25 stock and securities transactions on file in periodic transaction reports filed under the STOCK Act. The most frequently reported tickers are XSW (3 trades), VFH (3 trades) and XLC (3 trades). Across all reported trades, 14 were purchases and 11 were sales (full or partial).
The most recent reported transaction is dated Dec 2, 2025, and the latest report was filed on Aug 11, 2026. The most common reported amount range is $15,001 – $50,000; the forms list value ranges rather than exact amounts.
Summary generated from market data by MetaCap's automated system. Methodology
Trades by year
| Year | Trades |
|---|---|
| 2025 | 25 |
Stocks Sean S. Cairncross trades most
| Stock | Trades | Buys | Sells |
|---|---|---|---|
| XSWState Street SPDR S&P Software & Services ETF | 3 | 0 | 3 |
| VFHVanguard Financials ETF | 3 | 0 | 3 |
| XLCState Street Communication Services Select Sector SPDR ETF | 3 | 0 | 3 |
| SPYState Street SPDR S&P 500 ETF | 2 | 2 | 0 |
| VOOVanguard S&P 500 ETF | 2 | 2 | 0 |
| IYYiShares Dow Jones U.S. ETF | 2 | 2 | 0 |
| RSPInvesco S&P 500 Equal Weight ETF | 2 | 2 | 0 |
| IGViShares Expanded Tech-Software Sector ETF | 1 | 0 | 1 |
| VOXVanguard Communication Services ETF | 1 | 0 | 1 |
Sean S. Cairncross trade history
| Asset | Type | Amount | Traded | Filing |
|---|---|---|---|---|
| DTCRstock | Buy | $15,001 – $50,000 | Dec 2, 2025 | Filing for Sean S. Cairncross DTCR trade |
| DTCRstock | Buy | $15,001 – $50,000 | Dec 2, 2025 | Filing for Sean S. Cairncross DTCR trade |
| Vanguard Total Stock Market Index Fund ETFetf | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross Vanguard Total Stock Market Index Fund ETF trade |
| Vanguard Total Stock Market Index Fund ETFetf | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross Vanguard Total Stock Market Index Fund ETF trade |
| VOOVanguard S&P 500 ETF | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross VOO trade |
| VOOVanguard S&P 500 ETF | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross VOO trade |
| SPYState Street SPDR S&P 500 ETF Trust | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross SPY trade |
| SPYState Street SPDR S&P 500 ETF Trust | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross SPY trade |
| iShares Edge MSCI USA Momentum Factoretf | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross iShares Edge MSCI USA Momentum Factor trade |
| iShares Edge MSCI USA Momentum Factoretf | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross iShares Edge MSCI USA Momentum Factor trade |
| IYYiShares Dow Jones U.S. ETF | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross IYY trade |
| IYYiShares Dow Jones U.S. ETF | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross IYY trade |
| RSPInvesco S&P 500 Equal Weight ETF | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross RSP trade |
| RSPInvesco S&P 500 Equal Weight ETF | Buy | $15,001 – $50,000 | Oct 30, 2025 | Filing for Sean S. Cairncross RSP trade |
| VFHVanguard Financials ETF | Sell | $15,001 – $50,000 | Oct 29, 2025 | Filing for Sean S. Cairncross VFH trade |
| XSWState Street SPDR S&P Software & Services ETF | Sell | $1,001 – $15,000 | Oct 29, 2025 | Filing for Sean S. Cairncross XSW trade |
| XLCState Street Communication Services Select Sector SPDR ETF | Sell | $15,001 – $50,000 | Oct 29, 2025 | Filing for Sean S. Cairncross XLC trade |
| VFHVanguard Financials ETF | Sell | $100,001 – $250,000 | Oct 29, 2025 | Filing for Sean S. Cairncross VFH trade |
| XSWState Street SPDR S&P Software & Services ETF | Sell | $15,001 – $50,000 | Oct 29, 2025 | Filing for Sean S. Cairncross XSW trade |
| XLCState Street Communication Services Select Sector SPDR ETF | Sell | $50,001 – $100,000 | Oct 29, 2025 | Filing for Sean S. Cairncross XLC trade |
| IGViShares Expanded Tech-Software Sector ETF | Sell | $1,001 – $15,000 | Oct 29, 2025 | Filing for Sean S. Cairncross IGV trade |
| VFHVanguard Financials ETF | Sell | $50,001 – $100,000 | Oct 29, 2025 | Filing for Sean S. Cairncross VFH trade |
| XSWState Street SPDR S&P Software & Services ETF | Sell | $15,001 – $50,000 | Oct 29, 2025 | Filing for Sean S. Cairncross XSW trade |
| XLCState Street Communication Services Select Sector SPDR ETF | Sell | $15,001 – $50,000 | Oct 29, 2025 | Filing for Sean S. Cairncross XLC trade |
| VOXVanguard Communication Services ETF | Sell | $1,001 – $15,000 | Oct 10, 2025 | Filing for Sean S. Cairncross VOX trade |
Source: House Clerk and Senate EFD public disclosures. Trades are reported as dollar ranges and may be disclosed up to 45 days after the transaction.
Frequently asked questions
- What stocks does Sean S. Cairncross trade?
- Based on STOCK Act disclosures, Sean S. Cairncross's most frequently reported holdings and trades include XSW, VFH, XLC, SPY and VOO. Disclosures show transactions, not a complete current portfolio, and may include assets held by a spouse or dependent child.
- When did Sean S. Cairncross last report a trade?
- The latest transaction on file is dated Dec 2, 2025 and the most recent report was filed on Aug 11, 2026. Members have up to 45 days after a trade to disclose it, so newer trades may not be public yet.
- How many stock trades has Sean S. Cairncross disclosed?
- MetaCap has 25 transactions on file for Sean S. Cairncross: 14 purchases and 11 sales.
- How much money is involved in Sean S. Cairncross's trades?
- Exact values are not disclosed. Each trade is reported within a dollar range, most commonly $15,001 – $50,000.
- Where does this data come from?
- Executive-branch reports (OGE Form 278e and 278-T) come from the U.S. Office of Government Ethics. Each row links to the original filing.
More Congress trading
Latest filing Aug 11, 2026. Source: House Clerk and Senate EFD public disclosures. Trades are reported as dollar ranges and may be disclosed up to 45 days after the transaction. Disclosures are shown as filed and are not a recommendation to buy or sell any security. Market data is delayed at least 15 minutes and provided for informational purposes only. Not investment advice. Full disclaimer