Analysis: Richard W. Allen's buy of TSM (TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD)
Assessment: On watch
A small, potentially routine purchase of TSM aligned with an extraordinary cluster of same-day insider buys, but heavily obscured by a 39-day disclosure lag and severe research data gaps.
- Member: Richard W. Allen
- Party / state: Republican (state not provided)
- Chamber: House
- Transaction: Buy
- Amount: $1,001 - $15,000
- Ticker: TSM
- Company: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
- Trade date: 2026-05-08
- Disclosure date: 2026-06-16
- Disclosure lag: 39 days
Executive summary
Richard W. Allen (House, Republican; committees include Education and Workforce and Energy and Commerce) reported a purchase of TSM on 2026-05-08 for $1,001-$15,000 (disclosed 2026-06-16). The member also executed a same-day AXP buy and ACN sale. SEC EDGAR enrichment provided with the prompt shows multiple Form 4 insider purchases dated 2026-05-08 and no 8-K filings in the 90-day pre-trade to 30-day post-trade window covered by the enrichment.
Within the user-provided dataset, the member traded TSM twice (both purchases) on 2026-02-19 and 2026-05-08, each in the $1,001-$15,000 range, with the analyzed trade occurring alongside two other same-day trades (AXP buy; ACN sell). The disclosure lag for the analyzed trade is 39 days based on the provided dates. The SEC EDGAR enrichment provided with the prompt reports Form 4 activity for TSM in the 2026-04-08 to 2026-06-07 window with 21 buys and 1 sell (net direction labeled mixed in the enrichment) and no 8-K filings in the enrichment’s 8-K window. No additional primary-source legislative, regulatory, contracting, or news catalysts were retrievable here due to the inability to access external websites and the absence of 10-K text in the provided enrichment.
Timeline
- 2026-02-19 — Richard W. Allen purchase of TSM ($1,001-$15,000) at reported price per share $360.39 (user-provided trading dataset).
- 2026-05-08 — Richard W. Allen purchase of TSM ($1,001-$15,000) at reported price per share $411.68 (trade under analysis).
- 2026-05-08 — Same-day portfolio activity: purchase of AXP ($1,001-$15,000) and sale of ACN ($15,001-$50,000).
- 2026-05-08 — Multiple Form 4 transactions dated 2026-05-08 include purchases by several insiders (e.g., Chairman/CEO Wei Che-Chia, SVP/Deputy Co-COO Zhang Kevin Xiaoqiang) at reported price per share 71.82 (per enrichment list).
- 2026-05-11 — Multiple Form 4 filings filed on 2026-05-11 for transactions dated 2026-05-08 (per enrichment filings list).
- 2026-05-19 — Form 4 transactions dated 2026-05-19 include one reported sale (Chuang Tzu-Sou, VP) and multiple reported purchases (e.g., Tien Bor-Zen, VP) per enrichment list.
- 2026-05-21 — Form 4 filing dated 2026-05-21 (per enrichment filings list).
- 2026-05-22 — Form 4 filing dated 2026-05-22 (per enrichment filings list).
- 2026-06-16 — Disclosure filing date for Richard W. Allen's 2026-05-08 TSM purchase (user-provided).
Independent analysis of public financial disclosures. Not financial or investment advice.