MTSI MACOM Technology Solutions Holdings, Inc.: institutional ownership and insider trading
687 funds reported holding $29.5B of MACOM Technology Solutions Holdings, Inc. in their latest 13F filings; in Q2 2026 funds net sold $19.8M, with 181 new positions and 40 funds selling out; over the last 12 months insiders bought $0 and sold $349M on the open market.
Famous investors holding MTSI
- Izzy Englander (Millennium Management): $165M, 0.1% of the portfolio
- Two Sigma (Two Sigma Investments): $24.6M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $104M, 0.0% of the portfolio
- Lee Ainslie (Maverick Capital): $682K, 0.0% of the portfolio
Largest institutional holders of MTSI
- FMR LLC — $4.00B
- BlackRock, Inc. (BLK) — $3.62B
- VANGUARD PORTFOLIO MANAGEMENT LLC — $1.37B
- VANGUARD GROUP INC — $1.24B
- VANGUARD CAPITAL MANAGEMENT LLC — $1.17B
- T. Rowe Price Investment Management, Inc. — $1.08B
- STATE STREET CORP (STT, STT-PG) — $860M
- Invesco Ltd. (IVZ) — $818M
- JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) — $793M
- GEODE CAPITAL MANAGEMENT, LLC — $536M
Recent MTSI insider trades
- Oct 1, 2026: Roth Ambra R. sold 653 shares ($196K)
- Aug 28, 2026: Dennehy Robert sold 252 shares ($69.4K)
- Aug 17, 2026: Kober John sold 7,389 shares ($2.41M)
- Jun 25, 2026: Hwang Donghyun Thomas sold 2,620 shares ($1.01M)
Members of Congress trading MTSI
- Sep 29, 2026: Gilbert Ray Cisneros, Jr. sold $15.0K–$50.0K
- Sep 21, 2026: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Jul 16, 2026: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- May 22, 2026: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Mar 27, 2026: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Mar 3, 2026: Gilbert Ray Cisneros, Jr. bought $1.00K–$15.0K
- Jan 20, 2026: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Nov 13, 2025: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Apr 9, 2025: Josh Gottheimer sold part of $1.00K–$15.0K
- Feb 10, 2025: Robert P. Bresnahan, Jr. bought $1.00K–$15.0K
5%+ owners
- FMR LLC: 14.1% (Schedule 13G/A, filed May 6, 2026)
- BlackRock, Inc.: 10.4% (Schedule 13G/A, filed Jul 8, 2026)
- Susan M. Ocampo: 6.4% (Schedule 13G/A, filed Aug 12, 2026)