PAULSON & CO. INC.: ACADIAN ASSET MANAGEMENT INC (AAMI): Quarterly 13F Position History
As of Q1 2026, PAULSON & CO. INC. reported 7,743,282 shares of ACADIAN ASSET MANAGEMENT INC (AAMI), worth $421.4M and representing 13.5% of its 13F equity book. The position first appeared in Q3 2019 and has been disclosed across 27 13F-HR filings in Pactolio's tracked window.
- 7,743,282Shares Held (Latest Filing)
- $421.4MReported Market Value (Latest Filing)
- 13.5%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- +$57.5MQuarter-over-Quarter Value Change
- 20,000,552Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 27 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 7,743,282 | 0 | — | $421.4M | 13.5% | $54.4 |
| Q4 2025 | 7,743,282 | 0 | — | $363.9M | 11.2% | $47.0 |
| Q3 2025 | 7,743,282 | 1,206,839 | -13.5% | $372.9M | 12.6% | $48.2 |
| Q2 2025 | 8,950,121 | 0 | — | $315.4M | 15.7% | $35.2 |
| Q1 2025 | 8,950,121 | 0 | — | $231.5M | 13.3% | $25.9 |
| Q4 2024 | 8,950,121 | 0 | — | $235.7M | 14.3% | $26.3 |
| Q3 2024 | 8,950,121 | 0 | — | $227.3M | 16.0% | $25.4 |
| Q2 2024 | 8,950,121 | 0 | — | $198.4M | 14.7% | $22.2 |
| Q1 2024 | 8,950,121 | 0 | — | $204.4M | 14.1% | $22.8 |
| Q4 2023 | 8,950,121 | 0 | — | $171.5M | 15.5% | $19.2 |
| Q3 2023 | 8,950,121 | 0 | — | $173.5M | 15.5% | $19.4 |
| Q2 2023 | 8,950,121 | 0 | — | $187.5M | 18.3% | $20.9 |
| Q1 2023 | 8,950,121 | 0 | — | $211.0M | 17.5% | $23.6 |
| Q4 2022 | 8,950,121 | 0 | — | $184.2M | 16.6% | $20.6 |
| Q3 2022 | 8,950,121 | 0 | — | $133.4M | 9.8% | $14.9 |
| Q2 2022 | 8,950,121 | 0 | — | $161.2M | 7.9% | $18.0 |
| Q1 2022 | 8,950,121 | 0 | — | $217.0M | 6.7% | $24.3 |
| Q4 2021 | 8,950,121 | 11,050,431 | -55.3% | $229.1M | 7.1% | $25.6 |
| Q3 2021 | 20,000,552 | 0 | — | $522.6M | 14.9% | $26.1 |
| Q2 2021 | 20,000,552 | 0 | — | $468.6M | 11.2% | $23.4 |
| Q1 2021 | 20,000,552 | 0 | — | $407.6M | 9.4% | $20.4 |
| Q4 2020 | 20,000,552 | 0 | — | $385.6M | 10.0% | $19.3 |
| Q3 2020 | 20,000,552 | 0 | — | $258.0M | 8.0% | $12.9 |
| Q2 2020 | 20,000,552 | 0 | — | $249.2M | 8.0% | $12.5 |
| Q1 2020 | 20,000,552 | 0 | — | $127.8M | 4.9% | $6.4 |
| Q4 2019 | 20,000,552 | 0 | — | $204.4M | 4.4% | $10.2 |
| Q3 2019 | 20,000,552 | — | — | $198.2M | 4.1% | $9.9 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did PAULSON & CO. INC. first disclose a AAMI position in 13F-HR filings?
PAULSON & CO. INC. first reported ACADIAN ASSET MANAGEMENT INC (AAMI) on its 13F-HR filing for the period ending 2019-09-30 (Q3 2019). The position has appeared on 27 reported quarters within Pactolio's tracked window.
What was PAULSON & CO. INC.'s most recent quarter-over-quarter share-count change in AAMI?
PAULSON & CO. INC. held the same 7,743,282 shares of AAMI between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent PAULSON & CO. INC.'s cost basis in AAMI?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.