Ambarella Inc.
Congress has disclosed 2 buys and 2 sells of AMBA (Ambarella Inc.) in official financial disclosures, each linked to its original filing. A transparency record — not investment advice.
Activity Congressional Activity
Fundamentals · FY2027 Valuation
Standard valuation multiples from SEC-reported GAAP financials (trailing twelve months), each compared to the median for —. We use reported GAAP, not forward or adjusted earnings, so our figures can sit higher than sites that do — especially for companies with falling profit. Relative context — not a target price or investment advice.
how it's calculated
how it's calculated
4 trades Recent Congressional Trades
Two things to watch per trade: the disclosure lag (how many days passed before the trade was made public) and the price move in that window (how the stock moved during those non-public days). A sell followed by a price drop, or a buy followed by a rise, means well-timed trading — visible here in the open. Note: the Score measures how notable a trade is, not whether it made money — the price move is shown for context and isn't part of it.
| Politician | Chamber | Type | Owner | Date | Disclosure lag | Price move in that window | Amount | Score | Source |
|---|---|---|---|---|---|---|---|---|---|
| Donna Shalala | House | SELL | Self | 2019-06-24 | 6 days | — | $1K–$15K | 22.3 | ↗ filing |
| Donna Shalala | House | BUY | Self | 2019-05-15 | 16 days | — | $1K–$15K | 40.4 | ↗ filing |
| Donna Shalala | House | BUY | Self | 2019-04-16 | 14 days | — | $1K–$15K | 75.9 | ↗ filing |
| Barbara Comstock | House | SELL | Spouse | 2015-06-18 | 1 days | — | $1K–$15K | 75.9 | ↗ filing |
Corporate insiders · SEC Form 4 Insider Activity
What the company's own officers and directors did in AMBA — open-market purchases and sales from SEC Form 4 filings (option exercises, grants and tax withholding are excluded). This is context for the congressional activity above, never a buy/sell signal, and the two datasets are kept separate on purpose. Does convergence mean anything? →
Of the congressional trades in AMBA, 0 coincided with corporate insiders moving the same way within 60 days, and 0 with insiders moving the opposite way. This is co-occurrence only — whether it carries any edge is tested honestly on the convergence page.
| Date | Insider | Role | Type | Size | Source |
|---|---|---|---|---|---|
| 2026-09-25 | PAISLEY CHRISTOPHER B | Director | SELL 10b5-1 | $18K | ↗ EDGAR |
| 2026-09-18 | Young John Alexander | C-suite | SELL 10b5-1 | $128K | ↗ EDGAR |
| 2026-09-17 | Young John Alexander | C-suite | SELL | $203K | ↗ EDGAR |
| 2026-09-17 | Lee Chan W | C-suite | SELL | $188K | ↗ EDGAR |
| 2026-09-17 | Ju Chi-Hong | Other | SELL | $130K | ↗ EDGAR |
| 2026-09-17 | Wang Feng-Ming | C-suite | SELL | $395K | ↗ EDGAR |
| 2026-07-09 | Chen Yun-Lung | Other | SELL | $469K | ↗ EDGAR |
| 2026-07-01 | Wang Feng-Ming | C-suite | SELL 10b5-1 | $1.5M | ↗ EDGAR |
| 2026-07-01 | Ju Chi-Hong | Other | SELL | $888K | ↗ EDGAR |
| 2026-06-26 | PAISLEY CHRISTOPHER B | Director | SELL 10b5-1 | $16K | ↗ EDGAR |
| 2026-06-17 | Wang Feng-Ming | C-suite | SELL | $421K | ↗ EDGAR |
| 2026-06-17 | Ju Chi-Hong | Other | SELL | $137K | ↗ EDGAR |
| 2026-06-17 | Lee Chan W | C-suite | SELL | $200K | ↗ EDGAR |
| 2026-06-17 | Young John Alexander | C-suite | SELL 10b5-1 | $216K | ↗ EDGAR |
| 2026-06-17 | Young John Alexander | C-suite | SELL 10b5-1 | $124K | ↗ EDGAR |
| 2026-06-12 | Chen Yun-Lung | Other | SELL | $661K | ↗ EDGAR |
| 2026-05-26 | Wang Feng-Ming | C-suite | SELL 10b5-1 | $1.6M | ↗ EDGAR |
| 2026-05-26 | Wang Feng-Ming | C-suite | SELL 10b5-1 | $553K | ↗ EDGAR |
| 2026-05-26 | Wang Feng-Ming | C-suite | SELL 10b5-1 | $842K | ↗ EDGAR |
| 2026-05-26 | Young John Alexander | C-suite | SELL 10b5-1 | $38K | ↗ EDGAR |
| 2026-04-21 | Young John Alexander | C-suite | SELL 10b5-1 | $118K | ↗ EDGAR |
| 2026-03-19 | Wang Feng-Ming | C-suite | SELL | $438K | ↗ EDGAR |
| 2026-03-19 | Ju Chi-Hong | Other | SELL | $117K | ↗ EDGAR |
| 2026-03-19 | Lee Chan W | C-suite | SELL | $197K | ↗ EDGAR |
| 2026-03-19 | Young John Alexander | C-suite | SELL | $164K | ↗ EDGAR |
Combined timeline — Congress & insiders
Both sets of trades on one timeline, newest first, so you can see when they lined up. Congress vs ◆ insider.
| Date | Who | Type | Size | |
|---|---|---|---|---|
| ◆ insider | 2026-09-25 | PAISLEY CHRISTOPHER B Director 10b5-1 | SELL | $18K |
| ◆ insider | 2026-09-18 | Young John Alexander C-suite 10b5-1 | SELL | $128K |
| ◆ insider | 2026-09-17 | Young John Alexander C-suite | SELL | $203K |
| ◆ insider | 2026-09-17 | Lee Chan W C-suite | SELL | $188K |
| ◆ insider | 2026-09-17 | Ju Chi-Hong Other | SELL | $130K |
| ◆ insider | 2026-09-17 | Wang Feng-Ming C-suite | SELL | $395K |
| ◆ insider | 2026-07-09 | Chen Yun-Lung Other | SELL | $469K |
| ◆ insider | 2026-07-01 | Wang Feng-Ming C-suite 10b5-1 | SELL | $1.5M |
| ◆ insider | 2026-07-01 | Ju Chi-Hong Other | SELL | $888K |
| ◆ insider | 2026-06-26 | PAISLEY CHRISTOPHER B Director 10b5-1 | SELL | $16K |
| ◆ insider | 2026-06-17 | Wang Feng-Ming C-suite | SELL | $421K |
| ◆ insider | 2026-06-17 | Ju Chi-Hong Other | SELL | $137K |
| ◆ insider | 2026-06-17 | Lee Chan W C-suite | SELL | $200K |
| ◆ insider | 2026-06-17 | Young John Alexander C-suite 10b5-1 | SELL | $216K |
| ◆ insider | 2026-06-17 | Young John Alexander C-suite 10b5-1 | SELL | $124K |
| ◆ insider | 2026-06-12 | Chen Yun-Lung Other | SELL | $661K |
| ◆ insider | 2026-05-26 | Wang Feng-Ming C-suite 10b5-1 | SELL | $1.6M |
| ◆ insider | 2026-05-26 | Wang Feng-Ming C-suite 10b5-1 | SELL | $553K |
| ◆ insider | 2026-05-26 | Wang Feng-Ming C-suite 10b5-1 | SELL | $842K |
| ◆ insider | 2026-05-26 | Young John Alexander C-suite 10b5-1 | SELL | $38K |
| ◆ insider | 2026-04-21 | Young John Alexander C-suite 10b5-1 | SELL | $118K |
| ◆ insider | 2026-03-19 | Wang Feng-Ming C-suite | SELL | $438K |
| ◆ insider | 2026-03-19 | Ju Chi-Hong Other | SELL | $117K |
| ◆ insider | 2026-03-19 | Lee Chan W C-suite | SELL | $197K |
FAQ Common questions
How much has Congress traded AMBA?
2 disclosed buys and 2 sells of AMBA (Ambarella Inc.) appear in official congressional financial disclosures.
Is it legal for members of Congress to trade AMBA?
Members of Congress may trade stocks but must disclose it under the STOCK Act. QuantCapitol tracks those public disclosures for transparency — nothing here is an accusation of wrongdoing or investment advice.
Where does this data come from?
Official US House Clerk and Senate electronic financial disclosures. Every trade links back to its original filing so you can verify it yourself.