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Rossby Financial’s Constellium CSTM Stock Holding History

Rossby Financial’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 		$332K Buy
10,417
+417
+4% +$13.5K 0.06% 281
2026
Q1 		$273K Hold
10,000
– – 0.06% 304
2025
Q4 		$189K Buy
+10,000
New +$166K 0.06% 288

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

Rossby Financial's CSTM Position: Q2 2026 in Review

Rossby Financial increased its Constellium (CSTM) stake by 4.2% in Q2 2026, buying an estimated $13.5K and bringing the position to 10,417 shares worth $332K. The position accounts for 0.06% of the portfolio, ranked #281.

Rossby Financial first reported a position in CSTM in Q4 2025 and has held it in 3 quarters since. 389 funds tracked by Wall St. Rank hold CSTM as of Q2 2026.

  • Rossby Financial held 10,417 shares of Constellium worth $332K as of Q2 2026.
  • Rossby Financial bought 417 Constellium shares in Q2 2026, an estimated $13.5K.
  • Constellium made up 0.06% of Rossby Financial's portfolio in Q2 2026, its #281 holding.
  • Rossby Financial first reported a position in Constellium in Q4 2025 and has held it in 3 quarters since.
  • 389 funds tracked by Wall St. Rank held Constellium as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.