Acadian Asset Management AAMI Insider Ownership

NYSE AAMI
$92.47 -1.32 (-1.41%)
As of: Sep 29, 2026 · 3:59 PM EDT

Insider Holdings by Owner

15.31Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
43.08%
▼-0.072% pp QoQ
Shares Held by Insiders
15.35Mn
filed for Sep 2026
▼-0.17% QoQ
Shares Outstanding
35.62Mn
35,624,977 shares
Direct Holdings
507.18K
Indirect: 14.84Mn
Net Shares Traded (QoQ)
-25.61K
net selling in Sep 2026
Insiders Holding Shares
6
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

As of September 29, 2026, the three largest insider holders of AAMI are Co. Inc. Paulson (TenPercentOwner, 8.95Mn shares), Co. Inc. Paulson (TenPercentOwner, 5.84Mn shares), Suren Rana (President And Ceo, 371.73K shares).

Form 4 Holdings

Insiders Holding AAMI

Insiders 6
Shares held 15.31Mn
Of outstanding 42.98%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Co. Inc. Paulson TenPercentOwner 0 14,793,403 14,793,403 96.6% 22 Jun, 2026
2 Suren Rana President And Ceo 371,726 0 371,726 2.4% 02 Oct, 2024
3 Richard Jonathan Hart Clo And Cao 73,863 0 73,863 0.5% 05 May, 2026
4 Barbara Trebbi Director 28,797 10,260 39,057 0.3% 15 Jun, 2026
5 John Paulson Director, TenPercentOwner 29,510 0 29,510 0.2% 18 May, 2026
6 Robert J Chersi Director 3,286 0 3,286 0.0% 18 May, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

216 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
03 Aug, 2026 Christina Wiater Pao Disposed S 7,978 $86.61 $690.96K 17,636 Direct
03 Aug, 2026 Christina Wiater Pao Disposed S 17,389 $87.49 $1.52Mn 247 Direct
03 Aug, 2026 Christina Wiater Pao Disposed S 3 $88.11 $264 244 Direct
04 Aug, 2026 Christina Wiater Pao Disposed S 244 $92.36 $22.53K 0 Direct
17 Jun, 2026 Co. Inc. Paulson TenPercentOwner Disposed S 1,900,000 $77.25 $146.78Mn 5,843,282 Indirect
12 Jun, 2026 Robert J Chersi Director Acquired A 1,288 $0.00 $0 1,288 Direct
15 Jun, 2026 Barbara Trebbi Director Disposed G 10,260 $0.00 $0 28,797 Direct
12 Jun, 2026 John Paulson Director, TenPercentOwner Acquired A 2,253 $0.00 $0 2,253 Direct
15 Jun, 2026 Barbara Trebbi Director Acquired G 10,260 $0.00 $0 10,260 Indirect
12 Jun, 2026 Barbara Trebbi Director Acquired A 1,288 $0.00 $0 1,288 Direct
14 May, 2026 Robert J Chersi Director Acquired M 3,286 $0.00 $0 3,286 Direct
14 May, 2026 John Paulson Director, TenPercentOwner Acquired M 5,750 $0.00 $0 29,510 Direct
14 May, 2026 Barbara Trebbi Director Acquired M 3,286 $0.00 $0 39,057 Direct
14 May, 2026 John Paulson Director, TenPercentOwner Disposed M 5,750 $0.00 $0 0 Direct
14 May, 2026 Barbara Trebbi Director Disposed M 3,286 $0.00 $0 0 Direct
14 May, 2026 Robert J Chersi Director Disposed M 3,286 $0.00 $0 0 Direct
04 May, 2026 Richard Jonathan Hart Clo And Cao Disposed S 88,792 $66.87 $5.94Mn 85,071 Direct
04 May, 2026 Richard Jonathan Hart Clo And Cao Disposed S 11,208 $67.73 $759.08K 73,863 Direct
13 Feb, 2026 Kelly Young President And Ceo Acquired A 48,748 $0.00 $0 48,748 Direct
13 Feb, 2026 Scott Hynes Chief Financial Officer Acquired A 4,888 $0.00 $0 4,888 Direct