L3VLUP
ProSign in

CSTM · HWM in the 13F filings

Two to four stocks side by side among the 95 tracked managers: who lists them, how that has moved, who bought and sold in a quarter, and which managers hold more than one.

CSTMHWM
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

Holders over time

Tracked managers listing each stock every quarter, at least, or their combined reported value. A gap is a quarter in which no tracked manager listed it. Click a quarter to compare there.
  • CSTM
  • HWM
010203040202120222023202420252026
Holders and value by quarter
QuarterCSTMHWM
Q3 20204 holders, $102m12 holders, $1.6bn
Q4 20204 holders, $409m21 holders, $3.0bn
Q1 20216 holders, $472m18 holders, $3.2bn
Q2 20214 holders, $623m19 holders, $3.8bn
Q3 20215 holders, $582m18 holders, $3.4bn
Q4 20214 holders, $594m15 holders, $3.7bn
Q1 20226 holders, $587m12 holders, $3.6bn
Q2 20227 holders, $408m15 holders, $3.2bn
Q3 20225 holders, $150m20 holders, $3.1bn
Q4 20224 holders, $178m19 holders, $4.4bn
Q1 20234 holders, $226m23 holders, $4.7bn
Q2 20234 holders, $256m25 holders, $5.2bn
Q3 20235 holders, $254m26 holders, $4.3bn
Q4 20232 holders, $209m22 holders, $5.0bn
Q1 20243 holders, $241m22 holders, $6.1bn
Q2 20244 holders, $167m23 holders, $7.1bn
Q3 20244 holders, $121m25 holders, $8.7bn
Q4 20245 holders, $98m21 holders, $9.0bn
Q1 20253 holders, $29m23 holders, $10.0bn
Q2 20253 holders, $48m22 holders, $13.2bn
Q3 20253 holders, $115m23 holders, $13.4bn
Q4 20253 holders, $142m26 holders, $13.6bn
Q1 20266 holders, $215m35 holders, $15.6bn
Q2 20266 holders, $215m37 holders, $17.3bn
CSTM

Constellium Se

Holders
6
Reported value
$215m
Buyers
16
Sellers
15

Breadth +1 among 91 comparable managers.

Materials
HWM

Howmet Aerospace Inc

Holders
37
Reported value
$17.3bn
Buyers
19
Sellers
25

Breadth -6 among 91 comparable managers.

Materials

Who holds both, Q2 2026

Among the 38 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only CSTM (1)

Arrowstreet Capital LP

Only HWM (32)

AllianceBernstein LP, AQR Capital Management LLC, Artisan Partners LP, Balyasny Asset Management LLC, Capital Research Global Investors, Caxton Associates LLP, Citadel Advisors LLC, D. E. Shaw & Co., ExodusPoint Capital Management LP, Fidelity (FMR LLC), Freestone Grove Partners LP, GAMCO Investors Inc, Holocene Advisors LP, Hudson Bay Capital Management LP, Invesco Ltd, Jane Street Group LLC, Janus Henderson Group Ltd, Man Group PLC, MFS Investment Management, Millennium Management LLC, Neuberger Berman Group LLC, PDT Partners LLC, Polen Capital Management LLC, Quantbot Technologies LP, Renaissance Technologies LLC, and 7 more

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. Buyers and sellers count comparable managers (those that filed both quarters) by shares, so a rise in value with no rise in shares is the price. Large books are listed to their largest positions. These are 95 tracked managers, not the institutional market.

Back to the 13F Explorer →