Congress WatchHALO stock trades by members of Congress
Halozyme Therapeutics, Inc. - Common Stock: 4 members of Congress disclosed 11 transactions between 2017-12-08 and 2026-10-12, 4 purchases and 7 sales.
Activity by year
Transactions by the year the report was filed.
HALO price and Congress trades
Daily closing price (split-adjusted). Dots mark days members of Congress filed trades in HALO: green when more were purchases, red when more were sales. Use + and − (or Ctrl/⌘ + scroll) to zoom and drag to pan. Hover a month in the heatmap below to highlight it here, or click it to zoom to that month.
Congress buying and selling by month
Purchases and sales of HALO reported by members of the House and Senate.
Green months had more purchases, red months more sales, teal an even split; darker means more trades. Months are by filing date. Senate filings after August 2026 and scanned House filings are not fully covered, so early years can look quieter than they were.
Who traded HALO
| Politician | Trades | Buys | Sales | Last filing |
|---|---|---|---|---|
| Josh Gottheimer | 5 | 2 | 3 | 2024-10-03 |
| Gilbert Cisneros | 4 | 2 | 2 | 2026-10-12 |
| Mark R Warner | 1 | 0 | 1 | 2017-12-08 |
| Daniel Goldman | 1 | 0 | 1 | 2023-08-13 |
Disclosed transactions
Download all transactions as CSV
| Filed | Traded | Politician | Type | Amount | Filing |
|---|---|---|---|---|---|
| 2026-10-12 | 2026-09-29 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2026-04-07 | 2026-03-09 | Gilbert Cisneros | Buy | $1,001 - $15,000 | Source |
| 2025-04-07 | 2025-03-24 | Gilbert Cisneros | Partial sale | $1,001 - $15,000 | Source |
| 2024-10-03 | 2024-09-09 | Josh Gottheimer | Partial sale | $1,001 - $15,000 | Source |
| 2023-08-13 | 2023-07-12 | Daniel Goldman | Sale | $15,001 - $50,000 | Source |
| 2023-01-13 | 2022-12-06 | Josh Gottheimer | Partial sale | $1,001 - $15,000 | Source |
| 2022-09-16 | 2022-08-05 | Josh Gottheimer | Partial sale | $1,001 - $15,000 | Source |
| 2021-09-20 | 2021-08-20 | Josh Gottheimer | Buy | $1,001 - $15,000 e | Source |
| 2020-11-05 | 2020-10-19 | Josh Gottheimer | Buy | $1,001 - $15,000 f | Source |
| 2020-11-05 | 2020-10-22 | Gilbert Cisneros | Buy | $1,001 - $15,000 f | Source |
| 2017-12-08 | 2017-11-06 | Mark R Warner | Sale | $500,001 - $1,000,000 | Source |
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Common questions
- Are members of Congress buying or selling HALO?
- 4 members of Congress disclosed 11 transactions in Halozyme Therapeutics, Inc. - Common Stock (HALO) between 2017-12-08 and 2026-10-12: 4 purchases and 7 sales.
- How active was Congress in HALO recently?
- In 2026 filings, 2 transactions in HALO were disclosed: 1 purchases and 1 sales.
- Which members of Congress trade HALO?
- The most active in HALO are Josh Gottheimer (5), Gilbert Cisneros (4) and Mark R Warner (1), by number of disclosed transactions. 4 members in all have traded it.