Polymer Capital Management
MTZ icon

Polymer Capital Management’s MasTec MTZ Stock Holding History

Polymer Capital Management’s Portfolio MTZ Stock Details MTZ Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$1.28M Buy
5,970
+1,802
+43% +$507K 0.18% 156
2026
Q2 		$1.73M Buy
4,168
+3,943
+1,752% +$1.51M 0.23% 95
2026
Q1 		$72.4K Sell
225
-2,175
-91% -$589K 0.01% 794
2025
Q4 		$522K Sell
2,400
-3,977
-62% -$835K 0.05% 456
2025
Q3 		$1.36M Buy
6,377
+4,806
+306% +$880K 0.14% 138
2025
Q2 		$268K Buy
+1,571
New +$226K 0.03% 457

Other funds holding MTZ

Victory Capital Management
Victory Capital Management San Antonio, Texas $179B AUM 29.92% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Nordea Investment Management
Nordea Investment Management Stockholm, Sweden $127B AUM 33.25% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $30.6B AUM 42.55% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Polymer Capital Management's MTZ Position: Q3 2026 in Review

Polymer Capital Management increased its MasTec (MTZ) stake by 43% in Q3 2026, buying an estimated $507K and bringing the position to 5,970 shares worth $1.28M. The position accounts for 0.18% of the portfolio, ranked #156.

Polymer Capital Management first reported a position in MTZ in Q2 2025 and has held it in 6 quarters since. The position peaked at $1.73M in Q2 2026. 577 funds tracked by Wall St. Rank hold MTZ as of Q3 2026.

  • Polymer Capital Management held 5,970 shares of MasTec worth $1.28M as of Q3 2026.
  • Polymer Capital Management bought 1,802 MasTec shares in Q3 2026, an estimated $507K.
  • MasTec made up 0.18% of Polymer Capital Management's portfolio in Q3 2026, its #156 holding.
  • Polymer Capital Management first reported a position in MasTec in Q2 2025 and has held it in 6 quarters since.
  • Polymer Capital Management's MasTec position peaked at $1.73M in Q2 2026.
  • 577 funds tracked by Wall St. Rank held MasTec as of Q3 2026.

Based on Polymer Capital Management's 13F filing for Q3 2026, filed 13 Nov 2026.