Congressional Stock Trades & Disclosures
Katherine M. Clark is a U.S. Representative, a Democrat representing MA. As of November 2025, Bullish Whales has tracked 778 disclosed stock trades across 151 companies, representing $11M in disclosed transaction value, each filed publicly under the STOCK Act.
About Clark's congressional trading
Clark's disclosed activity shows a sell-leaning pattern, with 365 purchases and 410 sales (a buy-to-sell ratio of 0.89). Clark has traded --, SBUX, and HD most frequently among disclosed positions.
Clark's most recent disclosed trade was a purchase of UNITED STATES TREAS SER AU- 2026; 4.625%; 11/15/2026 NTS NOTE [GS] (--) from October 2025. Each trade below links to its filing, an estimated price range, and post-trade performance versus the market.
Trading activity
Estimated trading profits
No priced buy disclosures in this window.
No priced buy disclosures in this window.
Based on 205 of 242 disclosed buys with pricing coverage.
Jan 10, 2014 to Jul 14, 2026
Estimated unrealized profit is based on disclosed buy transactions, estimated trade price, and the latest priced-through date. It does not account for later sales, taxes, commissions, slippage, exact execution price, or full portfolio position size. This is descriptive research, not investment advice, and not an allegation of wrongdoing.
Disclosed trades & legislation
| Company | Type | Size | Traded | Est. price | Change |
|---|---|---|---|---|---|
 --UNITED STATES TREAS SER AU- 2026; 4.625%; 11/15/2026 NTS NOTE [GS] | Buy | $100,001 - $250,000 | 27 OCT 2025 | N/A | — |
| --UNITED STATES TREAS SER AU- 2026; 4.625%; 11/15/2026; NTS NOTE [GS] | Buy | $250,001 - $500,000 | 27 OCT 2025 | N/A | — |
| --UNITED STATES TREAS SER AU- 2026; 4.625%; 11/15/2026 NTS NOTE [GS] | Buy | $100,001 - $250,000 | 27 OCT 2025 | N/A | — |
| --UNITED STATES TREAS SER AU- 2026; 4.625%; 11/15/2026 NTS NOTE [GS] | Buy | $250,001 - $500,000 | 27 OCT 2025 | N/A | — |
 PGProcter & Gamble Company | Sell | $15,001 - $50,000 | 17 SEP 2025 | $156.91 | -6.90% |
| PGProcter & Gamble Company | Sell | $15,001 - $50,000 | 17 SEP 2025 | $156.91 | -6.90% |
 NYCBNew York Community Bancorp, Inc. Common Stock (NYCB) [ST] | Sell | $1,001 - $15,000 | 01 MAR 2024 | N/A | — |
| NYCBNew York Community Bancorp, Inc. Common Stock (NYCB) [ST] | Sell | $1,001 - $15,000 | 01 MAR 2024 | N/A | — |
| --United States Treasury Notes [GS] | Buy | $100,001 - $250,000 | 16 FEB 2024 | N/A | — |
| --United States Treasury Notes [GS] | Buy | $100,001 - $250,000 | 16 FEB 2024 | N/A | — |
Congressional trading news
The latest news on congressional stock trading, across all members, will appear here as our newsroom publishes it.
Katherine M. Clark congressional trading FAQ
Can Katherine M. Clark legally trade stocks?
Yes. Members of Congress are permitted to buy and sell stocks, but the 2012 STOCK Act requires them to publicly disclose each transaction, generally within 45 days. Quantellect compiles Katherine M. Clark's disclosures so the public can review them.
Where does Quantellect get Katherine M. Clark's trading data?
Every trade shown is sourced from official Periodic Transaction Reports filed under the STOCK Act. Amounts are reported as ranges, and estimated prices and post-trade returns are derived from end-of-day market data.
How can I track Katherine M. Clark's stock trades?
Quantellect tracks every stock trade Katherine M. Clark discloses under the STOCK Act on this page, including the company, the disclosed amount range, and post-trade performance. New filings appear here as they are reported, generally within 45 days of the trade.
How many stock trades has Katherine M. Clark disclosed?
Quantellect has tracked 778 disclosed trades by Katherine M. Clark across 151 companies.
Which stocks does Katherine M. Clark trade most?
Katherine M. Clark's most frequently disclosed positions include --, SBUX, HD, AAPL, and SPG. The full list of companies and individual filings is shown on this page.
What was Katherine M. Clark's most recent stock trade?
Katherine M. Clark most recently bought UNITED STATES TREAS SER AU- 2026; 4.625%; 11/15/2026 NTS NOTE [GS] (--) in October 2025, according to public STOCK Act filings tracked by Quantellect.
Browse all members of Congress who trade stocksSee which stocks Congress tradesCongressional trading overview
Trades reflect disclosures filed under the STOCK Act and are provided for informational purposes only, not investment advice. Amounts are ranges from official filings; estimated prices and post-trade returns are derived from end-of-day market data and may be revised as filings are amended.