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Data as of 2026-09-29
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Macom Technology S (MTSI): Congress and insider trades

Who in Congress and inside the company traded MTSI, when each filing appeared, and what buying after each one would have earned against the S&P 500.

Key Facts

  • Macom Technology S (MTSI) is a listed stock on NASDAQ.
  • 2 members of Congress filed 1 buy and 8 sells of MTSI, the latest published 2026-09-07 (7 September 2026).
  • Insiders filed 0 open market buys worth $0 and 7 sells worth $14M, the latest filed 2026-09-01 (1 September 2026).
  • Across 1 scored buy, Congress averaged +13.3% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to tell.
  • Data as of 2026-09-29 (29 September 2026).
Congress buys 1 2 members
Congress sells 8
Insider buys 0 $0
Insider sells 7 $14M
Congress buys vs S&P, 90d +13.3% 1 scored buys
Insider buys vs S&P, 90d n/a 0 scored buys

Congress trades in MTSI

as of 2026-09-07
  1. Gil Cisneros6 trades
  2. Josh Gottheimer3 trades
Congress trades in MTSI, newest first.
FiledMemberTypeSizeDays to file90 day vs S&P
7 Sep 2026 Gil Cisneros (D-CA) sell 1K–15K 50 n/a
9 Jun 2026 Gil Cisneros (D-CA) sell 1K–15K 17 n/a
8 Apr 2026 Gil Cisneros (D-CA) sell 1K–15K 11 n/a
8 Apr 2026 Gil Cisneros (D-CA) buy 1K–15K 35 +13.3%
16 Feb 2026 Gil Cisneros (D-CA) sell 1K–15K 24 n/a
16 Dec 2025 Gil Cisneros (D-CA) sell 1K–15K 32 n/a
15 May 2025 Josh Gottheimer (D-NJ) sell 1K–15K 35 n/a
20 Feb 2023 Josh Gottheimer (D-NJ) sell 1K–15K 37 n/a
20 Feb 2023 Josh Gottheimer (D-NJ) sell 1K–15K 25 n/a

Insider trades in MTSI

as of 2026-09-01
Open market insider trades in MTSI, newest first.
FiledInsiderTypeSharesPriceValue90 day vs S&P
1 Sep 2026 Dennehy Robert sell 252 $275.20 $69.3K n/a
19 Aug 2026 Kober John sell 7,389 $326.08 $2.4M n/a
29 Jun 2026 Hwang Donghyun Thomas sell 2,620 $383.87 $1.0M n/a
2 Jun 2026 Daly Stephen G sell 15,828 $365.75 $5.8M n/a
20 May 2026 Hwang Donghyun Thomas sell 2,595 $360.64 $936K n/a
20 May 2026 Kober John sell 7,644 $359.25 $2.7M n/a
4 May 2026 Hwang Donghyun Thomas sell 3,718 $276.74 $1.0M n/a

Frequently asked questions

Who has bought MTSI?

1 Congress buy by 2 members and 0 insider buys are on file. The tables on this page list every one.

Did buying MTSI after a disclosure beat the market?

Across 1 scored buy, Congress averaged +13.3% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to tell. A single stock is a small sample.

Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.

Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.