CL
MTSI icon

CSS LLC’s MACOM Technology Solutions MTSI Stock Holding History

CSS LLC’s Portfolio MTSI Stock Details MTSI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-4,000
Closed -$498K – 1163
2025
Q3 		$498K Buy
+4,000
New +$528K 0.02% 536

Other funds holding MTSI

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

CSS LLC's MTSI Position: Q1 2026 in Review

CSS LLC increased its MACOM Technology Solutions (MTSI) stake by 25% in Q1 2026, buying an estimated $498K and bringing the position to 11,248 shares worth $2.5M. The position accounts for 0.12% of the portfolio, ranked #138.

CSS LLC first reported a position in MTSI in Q4 2024 and has held it in 3 quarters since. The position peaked at $29.5M in Q4 2024. 512 funds tracked by Wall St. Rank hold MTSI as of Q1 2026.

  • CSS LLC held 11,248 shares of MACOM Technology Solutions worth $2.5M as of Q1 2026.
  • CSS LLC bought 2,230 MACOM Technology Solutions shares in Q1 2026, an estimated $498K.
  • MACOM Technology Solutions made up 0.12% of CSS LLC's portfolio in Q1 2026, its #138 holding.
  • CSS LLC first reported a position in MACOM Technology Solutions in Q4 2024 and has held it in 3 quarters since.
  • CSS LLC's MACOM Technology Solutions position peaked at $29.5M in Q4 2024.
  • 512 funds tracked by Wall St. Rank held MACOM Technology Solutions as of Q1 2026.

Based on CSS LLC's 13F filing for Q1 2026, filed 15 May 2026.