MTSI Congressional Stock Trades & Insider Buying (2026)

MTSI insider buying and selling over the past year

Insiders at MACOM Technology Solutions Holdings, Inc. only sold stock in the open market over the past year: 28 Form 4 sales totaling $329.61M, against no open-market purchases.

Only 11 of the 28 sales were flagged as Rule 10b5-1 plan trades, so most selling was discretionary rather than pre-scheduled. Activity clustered in 2026-02 (11 trades) and 2025-11 (8 trades); the latest filing in this window is dated 2026-02-26. The average open-market sale price was $203.15; the last close of $262.24 is 29.1% above that level, so sellers left upside on the table. The single largest trade was a sale of 315,272 shares worth $79.98M on 2026-02-25. Since the most recent filing the stock has moved +6.1%, from $247.11.

Where MTSI trades relative to its one-year range

MACOM Technology Solutions Holdings, Inc. closed at $262.24 on 2026-10-16, inside a one-year range of $135.91 to $409.68. That puts the stock in the middle of its range, at 46.1% of the distance from low to high. Over one year the share price moved +90.1%, and over roughly three months -1.9%. Average daily volume over the last month was about 1,479,813 shares.

Across 100 companies in the same SEC industry group (SIC 36) with a full year of prices in Gemral Edge, the median one-year return was +16.1%. MTSI is ahead of that median and beat 85% of that peer group on this measure.

Members of Congress who traded MTSI

STOCK Act disclosures show 10 trades in MTSI by 3 members of Congress over five years (2 purchases, 8 sales), most recently on 2026-09-29. The most active traders were Gilbert Ray Cisneros, Jr. (D-CA), 8 trades; Josh Gottheimer (D-NJ), 1 trade; Robert P. Bresnahan, Jr. (R-PA), 1 trade.

By party the trades split 9 by Democrats, 1 by Republicans; by chamber, 10 from the House.

Compare MTSI with indexed peers from the same industry group

These peers have full Gemral Edge dossiers and the closest one-year price move to MTSI:

• AMAT one-year return +79.7%
• ADI one-year return +63.7%
• TXN one-year return +57.6%
• AMD one-year return +125.4%
• GEV one-year return +53.0%

Sources and method

Every figure above is computed from public filings stored in Gemral Edge, not estimated. Insider figures count only open-market purchases and sales reported on SEC Form 4; option exercises, grants and gifts are excluded because they do not reflect a decision to buy or sell at market prices.

• SEC EDGAR Form 4 (edge_insider_trades, codes P/S open-market only) — as of 2026-02-26
• edge_prices_eod (end-of-day close) — as of 2026-10-16
• House PTR / Senate eFD disclosures (edge_congress_trades) — as of 2026-09-29

MTSI data questions

Are MTSI insiders buying or selling stock?

Insiders at MACOM Technology Solutions Holdings, Inc. only sold stock in the open market over the past year: 28 Form 4 sales totaling $329.61M, against no open-market purchases.

What is the one-year price range for MTSI?

Based on end-of-day closes through 2026-10-16, MTSI traded between $135.91 and $409.68, last closing at $262.24.

Has any member of Congress traded MTSI stock?

Yes. 3 members disclosed 10 trades in MTSI over five years; the most recent disclosed trade date is 2026-09-29.