Acadian Asset Management Inc.
A Boston-based investment firm that uses computers, data, and mathematical models to build stock and multi-asset portfolios for pension funds, insurers, and other big institutional clients. It traces its roots to 1977, when Gary Bergstrom set up Acadian Financial Research to manage money for State Street, and it became an independent firm in 1986. Its name comes from Acadia, the historical name for a swath of northeastern North America near its hometown.
Sold 3.11M
Granted 3.3K · Sold 28.8K
Granted 15.3K · Sold 100.0K
Granted 3.3K · Sold 9.7K
Granted 5.8K
Granted 9.2K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Paulson & Co. Inc.10% owner · 2 transactions | — | 5.84M | — | — | 3.11M |
| Chersi Robert JDirector · 2 transactions | -19.3% | 106.8K | 3.3K | — | 28.8K |
| Hart Richard JonathanCLO and CAO · 6 transactions | -48.7% | 85.1K | 15.3K | — | 100.0K |
| Trebbi BarbaraDirector · 4 transactions | — | 78.1K | 3.3K | — | 9.7K |
| Paulson JohnDirector, 10% owner · 1 transaction | +24.2% | 29.5K | 5.8K | — | — |
| Wiater ChristinaPFO / PAO · 4 transactions | +33.9% | 25.6K | 9.2K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last year: -3.25M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.