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Acadian Asset Management Inc. (New York Stock Exchange:AAMI)
US · Delayed Price · Currency is USD
92.35-0.44 (-0.47%)
Insider Score
––Not scored
AAMI Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
AAMI Stock Insider Trading Activity
AAMI stock’s insider trading shows 7 sales on the open market for an estimated $155.71M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Wiater Christina Other | Sell | 244 | $92.36 | $22.53K | 100% | 0 | Aug 4, 2026 | — | Form 4 |
| Wiater Christina Other | Sell | 17,389 | $87.49 | $1.52M | 98.6% | 247 | Aug 3, 2026 | — | Form 4 |
| Wiater Christina Other | Sell | 7,978 | $86.61 | $690.96K | 31.1% | 17,636 | Aug 3, 2026 | — | Form 4 |
| Wiater Christina Other | Sell | 3 | $88.11 | $264.33 | 1.2% | 244 | Aug 3, 2026 | — | Form 4 |
| PAULSON & CO. INC. Other | Sell | 1,900,000 | $77.25 | $146.78M | 24.5% | 5,843,282 | Jun 17, 2026 | — | Form 4 |
| Trebbi Barbara Director | Gift | 10,260 | — | — | 26.3% | 28,797 | Jun 15, 2026 | — | Form 4 |
| Trebbi Barbara Director | Gift | 10,260 | — | — | New | 10,260 | Jun 15, 2026 | — | Form 4 |
| Paulson John Director | Option exercise | 5,750 | — | — | 24.2% | 29,510 | May 14, 2026 | — | Form 4 |
| Chersi Robert J Director | Option exercise | 3,286 | — | — | New | 3,286 | May 14, 2026 | — | Form 4 |
| Trebbi Barbara Director | Option exercise | 3,286 | — | — | 9.2% | 39,057 | May 14, 2026 | — | Form 4 |
| Hart Richard Jonathan Other | Sell | 11,208 | $67.73 | $759.08K | 13.2% | 73,863 | May 4, 2026 | — | Form 4 |
| Hart Richard Jonathan Other | Sell | 88,792 | $66.87 | $5.94M | 51.1% | 85,071 | May 4, 2026 | — | Form 4 |
| Wiater Christina Other | Tax withheld | 1,521 | $51.85 | $78.86K | 5.6% | 25,614 | Feb 15, 2026 | — | Form 4 |
| Wiater Christina Other | Option exercise | 5,180 | — | — | 23.6% | 27,135 | Feb 15, 2026 | — | Form 4 |
| Hart Richard Jonathan Other | Tax withheld | 4,618 | $51.85 | $239.44K | 2.6% | 173,863 | Feb 15, 2026 | — | Form 4 |
| Hart Richard Jonathan Other | Option exercise | 9,550 | — | — | 5.7% | 178,481 | Feb 15, 2026 | — | Form 4 |
| Hart Richard Jonathan Other | Tax withheld | 2,782 | $51.85 | $144.25K | 1.6% | 168,931 | Feb 14, 2026 | — | Form 4 |
| Hart Richard Jonathan Other | Option exercise | 5,755 | — | — | 3.5% | 171,713 | Feb 14, 2026 | — | Form 4 |
| Wiater Christina Other | Tax withheld | 1,176 | $51.85 | $60.98K | 5.1% | 21,955 | Feb 14, 2026 | — | Form 4 |
| Wiater Christina Other | Option exercise | 4,006 | — | — | 20.9% | 23,131 | Feb 14, 2026 | — | Form 4 |
| Chersi Robert J Director | Sell | 28,753 | $51.30 | $1.48M | 43.5% | 37,384 | Feb 11, 2026 | — | Form 4 |
| Trebbi Barbara Director | Sell | 9,691 | $51.22 | $496.33K | 21.3% | 35,771 | Feb 10, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Option exercise (M) — Exercise or conversion of an exempt derivative
- Gift (G) — Bona fide gift
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.