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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
2026
Q2 		$5M Buy
13,148
+1,900
+17% +$630K 0.19% 88
2026
Q1 		$2.5M Buy
11,248
+2,230
+25% +$498K 0.12% 138
2025
Q4 		$1.54M Buy
+9,018
New +$1.43M 0.07% 204
2025
Q1 		– Sell
-226,997
Closed -$29.5M – 1038
2024
Q4 		$29.5M Buy
+226,997
New +$28.6M 1.3% 14

Other funds holding MTSI

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

CSS LLC's MTSI Position: Q2 2026 in Review

CSS LLC increased its MACOM Technology Solutions (MTSI) stake by 17% in Q2 2026, buying an estimated $630K and bringing the position to 13,148 shares worth $5M. The position accounts for 0.19% of the portfolio, ranked #88.

CSS LLC first reported a position in MTSI in Q4 2024 and has held it in 4 quarters since. The position peaked at $29.5M in Q4 2024. 657 funds tracked by Wall St. Rank hold MTSI as of Q2 2026.

  • CSS LLC held 13,148 shares of MACOM Technology Solutions worth $5M as of Q2 2026.
  • CSS LLC bought 1,900 MACOM Technology Solutions shares in Q2 2026, an estimated $630K.
  • MACOM Technology Solutions made up 0.19% of CSS LLC's portfolio in Q2 2026, its #88 holding.
  • CSS LLC first reported a position in MACOM Technology Solutions in Q4 2024 and has held it in 4 quarters since.
  • CSS LLC's MACOM Technology Solutions position peaked at $29.5M in Q4 2024.
  • 657 funds tracked by Wall St. Rank held MACOM Technology Solutions as of Q2 2026.

Based on CSS LLC's 13F filing for Q2 2026, filed 14 Aug 2026.