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Polymer Capital Management’s Constellium CSTM Stock Holding History

Polymer Capital Management’s Portfolio CSTM Stock Details CSTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.44M Buy
+45,309
New +$1.46M 0.19% 143
2026
Q1 		– Sell
-15,200
Closed -$287K – 864
2025
Q4 		$287K Sell
15,200
-9,216
-38% -$153K 0.03% 649
2025
Q3 		$363K Sell
24,416
-7,053
-22% -$101K 0.04% 522
2025
Q2 		$419K Sell
31,469
-2,525
-7% -$28.4K 0.05% 323
2025
Q1 		$343K Buy
+33,994
New +$361K 0.09% 327

Other funds holding CSTM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
B
Bpifrance Maisons Alfort, Cedex, France $1.36B AUM 21.86% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
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
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
KPM
Kinetic Partners Management Miami, Florida $4.19B AUM 61.52% 1-Year Est. Return

Polymer Capital Management's CSTM Position: Q2 2026 in Review

Polymer Capital Management opened a new position in Constellium (CSTM) in Q2 2026: 45,309 shares worth $1.44M. The stake represents 0.19% of the portfolio and ranks #143 among its holdings. This is a return to the name: Polymer Capital Management previously reported a position in CSTM as recently as Q4 2025.

Polymer Capital Management first reported a position in CSTM in Q1 2025 and has held it in 5 quarters since. 389 funds tracked by Wall St. Rank hold CSTM as of Q2 2026.

  • Polymer Capital Management held 45,309 shares of Constellium worth $1.44M as of Q2 2026.
  • Constellium was a new Polymer Capital Management position in Q2 2026.
  • Constellium made up 0.19% of Polymer Capital Management's portfolio in Q2 2026, its #143 holding.
  • Polymer Capital Management first reported a position in Constellium in Q1 2025 and has held it in 5 quarters since.
  • 389 funds tracked by Wall St. Rank held Constellium as of Q2 2026.

Based on Polymer Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.