Congress Trades Filed Mid-September 2026: Cisneros Batch, Booker AMZN Sale, Boozman Energy Line

Congressional stock trades filed in mid-September 2026 are a noticeably larger wave than the quiet early-September window. As of September 14, 2026, ProBors shows 83 deduplicated disclosure rows with filing dates between September 3 and September 11—spanning seven members across House and Senate. Rep. Gilbert Cisneros filed a 57-row House batch on September 4 alone, mixing purchases and partial sales across tech, healthcare, and industrials. Sen. Cory Booker's September 9 Senate filing includes a $100,001–$250,000 Amazon (AMZN) sale alongside NVDA and biotech exits. Sen. John Boozman's September 11 Senate batch pairs small-cap ETF reshuffling with a Constellation Energy (CEG) partial sale flagged as Worth watching. This is research context, not investment advice.

Snapshot summary

ProBors sorts congressional disclosures by filing date. In the September 3–11 filing window:

• 83 rows after deduplication (identical politician, ticker or asset, type, trade date, filing date, amount, and chamber removed)
• 7 politicians filed in this window: Gilbert Cisneros (57 rows), John Boozman (9 rows), Cory Booker (7 rows), David Taylor (6 rows), Mike Kelly (2 rows), John Fetterman (1 row), and Lloyd Doggett (1 row)
• Chamber split: 66 House rows, 17 Senate rows
• Transaction mix: 43 purchases, 24 sales, 16 partial sales
• Signal tiers: 2 High signal rows, 23 Worth watching, 58 Normal
• Filing lag: 7-day minimum (Taylor's August 26 trades filed September 3), 17-day median, 31-day maximum on Cisneros's early-August lines
• Notable clusters: Cisneros's September 4 House batch (57 rows); Booker's September 9 Senate tech-and-biotech sale batch; Boozman's September 11 Senate ETF and energy reshuffle

The mid-September wave is much louder than early September's 11-row batch. Over the prior 14 days, congressional ticker overlap in ProBors remains thin—IBM appears once as the only ticker with more than a single member filing.

Recent disclosures worth a closer look

The table below shows deduplicated rows from ProBors as of September 14, 2026. Lag is calendar days between transaction date and filing date as reported in each disclosure.

How to read this without overfitting:

• Cisneros's CSGP and BSX purchases are the only High signal rows in this window. ProBors flagged both because insider Form 4 buying appeared in the same tickers within roughly 30 days, combined with prior opposite-side disclosures and post-trade price movement.
• Booker's AMZN sale is the largest single equity bracket in this snapshot at $100,001–$250,000, filed September 9 on an August 11 trade date with 29-day lag. The NVDA sale on the same trade date carries a Worth watching signal partly because three politicians traded NVDA in August.
• Boozman's CEG partial sale is Worth watching because insider buying clustered near the same ticker within the scoring window—not because the bracket is large.
• Cisneros's SKHY purchase (SK hynix ADR) is Worth watching on a first-time ticker disclosure with roughly 44% price movement in the 60-day window after the anchor date.
• Taylor's September 3 House filing is the fastest equity turnaround in this batch at 8-day lag—six small tech and healthcare lines traded August 26.
• Booker's webAI sale is a private-company line with no equity ticker. Treat it separately from the AMZN and NVDA rows above.

Filing lag in plain language

STOCK Act disclosures are periodic reports, not live trade feeds. In this mid-September snapshot:

• Fastest equity lines: Taylor's August 26 trades filed September 3 at 8-day lag
• Typical fresh trades: Cisneros's September 4 batch covers August 4–28 trade dates with 16- to 31-day lag
• Senate batches: Booker's September 9 filing covers August 11–18 trade dates at 22- to 29-day lag
• Latest Senate wave: Boozman's September 11 filing spans August 13–27 trade dates at 15- to 29-day lag

When a headline says a representative "just disclosed" dozens of trades, check both dates. A September 4 filing may cover trades from early August. For the rules behind that gap, see STOCK Act filing delay explained.

How to research this week's filings on ProBors

1. Open Congressional trades and sort by filing date descending to mirror this snapshot.
2. Filter by House when you want large batches like Cisneros's September 4 cluster.
3. Filter by Senate for Booker's September 9 tech sale batch or Boozman's September 11 ETF reshuffle.
4. Sort by signal score when you want to triage the two High signal and 23 Worth watching rows before reading every Normal line.
5. Cross-check any notable row against the original PTR or Senate eFD PDF before citing it in notes or journalism.

For chamber-specific workflows, see the House stock trading tracker and Senate stock trading tracker guides.

What this does not prove

A filing date in mid-September does not mean the politician traded that week. Cisneros's September 4 House batch covers August trade dates filed two to four weeks later. Booker's AMZN and NVDA sales on the same August 11 date could reflect portfolio rebalancing, not a directional call on either name. Boozman's Worth watching CEG line combines disclosure timing with insider context—it does not establish non-public information or committee conflict. Cisneros's High signal CSGP and BSX purchases overlap with insider buying patterns, but that is a triage flag, not proof of coordinated activity. None of these disclosures are trade signals. They are public records worth reading carefully.

FAQ

How many congressional trades were filed in mid-September 2026?

ProBors shows 83 deduplicated disclosure rows with filing dates between September 3 and September 11, 2026, across seven politicians. The count is after removing identical politician-ticker-type-date-amount-chamber duplicates.

Why did Gilbert Cisneros file so many rows on September 4?

Cisneros's September 4 House filing includes 57 deduplicated rows spanning purchases and partial sales across tech, healthcare, industrials, and one municipal-bond purchase in the $250,001–$500,000 bracket. That pattern is consistent with a periodic disclosure covering multiple trust-account lines rather than a single trading day.

Which tickers had the highest signal scores in this window?

Only two rows reached High signal tier: Cisneros's CSGP and BSX purchases, both filed September 4. Twenty-three additional rows are Worth watching, including Booker's NVDA sale, Boozman's CEG partial sale, and Cisneros's SKHY purchase.

How does this batch compare to early September 2026?

Early September carried 11 deduplicated rows across four members, with no High signal tiers. Mid-September has 83 rows from seven members, dominated by Cisneros's September 4 batch and Booker's September 9 Senate sale cluster.

Where can I verify these rows against original filings?

Each House PTR is available through the House Clerk's disclosure search. Senate reports are published through the Senate eFD system. Rows were checked in ProBors and should be verified against the original filing.

Track congressional filings as they land

Use ProBors to sort House and Senate PTR rows by filing date, signal score, and politician—then cross-check against original disclosures.

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Related reading

• Congress trades filed early September 2026
• How to read politician trade disclosures
• STOCK Act filing delay explained
• How to filter congress trades by signal score
• How to run a weekly congress disclosure review

Sources

• House Financial Disclosure Reports — Periodic Transaction Reports (PTRs)
• Senate Financial Disclosures (eFD) — Senate PTR search
• STOCK Act of 2012 — Congressional trading disclosure requirements
• ProBors data status — ingestion health for congressional filings

Rows were checked in ProBors and should be verified against the original filing.