Form 4 for AAMI Acadian Asset Management Inc.
Accepted 2026-02-18 00:00:00 ET · period of report 2026-02-13 · accession 0001628280-26-009235 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-02-18 | 2026-02-14+ | AAMI | Wiater Christina | PFO, PAO | M - OptEx | $0.00 | +9,186 | 23.1K | +66% | $0 |
| DM | 2026-02-18 | 2026-02-14+ | AAMI | Wiater Christina | PFO, PAO | F - Tax | $51.85 | -2,697 | 22.0K | -11% | -$139.8K |
| D | 2026-02-18 | 2026-02-13 | AAMI | Wiater Christina | PFO, PAO | A - Grant | $0.00 | +5,407 | 26.4K | +26% | $0 |
| DM | 2026-02-18 | 2026-02-14+ | AAMI | Wiater Christina | PFO, PAO | M - OptEx | $0.00 | -9,186 | 17.2K | -35% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-02-15 | M | A | 5,180 | $0.00 | 27,135 | D | — | — | |
| 2 | Common | Common Stock | 2026-02-15 | F | D | 1,521 | $51.85 | 25,614 | D | — | — | |
| 3 | Common | Common Stock | 2026-02-14 | F | D | 1,176 | $51.85 | 21,955 | D | — | — | |
| 4 | Common | Common Stock | 2026-02-14 | M | A | 4,006 | $0.00 | 23,131 | D | — | — | |
| 5 | Derivative | Restricted Stock Units | 2026-02-13 | A | A | 5,407 | $0.00 | 26,432 | D | $0.00 · — to — | 5,407 Common Stock | (F1) Each restricted stock unit represents the right to receive one share of common stock of Acadian Asset Management Inc. (F2) On February 13, 2026, the reporting person was granted 5,407 restricted stock units, vesting in equal annual installments over a three-year period with 1/3 of the shares vesting on each of February 13, 2027, February 13, 2028 and February 13, 2029. |
| 6 | Derivative | Restricted Stock Units | 2026-02-14 | M | D | 4,006 | $0.00 | 22,426 | D | $0.00 · — to — | 4,006 Common Stock | (F1) Each restricted stock unit represents the right to receive one share of common stock of Acadian Asset Management Inc. (F3) On February 14, 2025, the reporting person was granted 12,018 restricted stock units, vesting in equal annual installments over a three-year period with 1/3 of the shares vesting on each of February 14, 2026, February 14, 2027 and February 14, 2028. |
| 7 | Derivative | Restricted Stock Units | 2026-02-15 | M | D | 5,180 | $0.00 | 17,246 | D | $0.00 · — to — | 5,180 Common Stock | (F4) On February 15, 2023, the reporting person was granted 4,059 restricted stock units, vesting in equal annual installments over a three-year period with 1/3 of the shares vesting on each of February 15, 2024, February 15, 2025 and February 15, 2026. On February 15, 2024, the reporting person was granted 11,481 restricted stock units, vesting in equal annual installments over a three-year period with 1/3 of the shares vesting on each of February 15, 2025, February 15, 2026 and February 15, 2027. |