AAMI

Acadian Asset Management Inc$83.27 0.24%
FinancialsUSCUSIP 10948W103· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
202
+6 QoQ
13F Value (tracked)
$1.8B
Insider Net · 180d
-$155.4M
0↑ 4↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)33 adding · 18 trimming
Insider net (180d)-$155.4M

Price & smart-money activity

$83.27 0.24%5Y +260.6%
$9.44$29.27$49.09$68.91$88.742021202220232024202520262230194021312224222418312924252824313328233428282033372138284036644350542515129
Hover for who · click for detailEnd-of-day closing prices52w $39.30 – $83.27
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Ask your agent what changed in AAMI

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/AAMI/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for AAMI.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

202 tracked 13F filers
#FundPosition valueSharesLast moveAs ofHistory
1PAULSON & CO. INC.
$421.4M
7.7M
Held
Q1 2026
2BlackRock, Inc.
$248.9M
4.6M
−1.7%
Reduced · −81K sh
Q1 2026
3JENNISON ASSOCIATES LLC
$110.0M
2.0M
+5.9%
Added · +113K sh
Q1 2026
4Empyrean Capital Partners, LP
$71.2M
1.3M
−6.9%
Reduced · −96K sh
Q1 2026
5STATE STREET CORP
$65.8M
1.2M
+0.3%
Added · +3K sh
Q1 2026
6VANGUARD CAPITAL MANAGEMENT LLC
$63.1M
1.2M
New
+1.2M sh
Q1 2026
7DIMENSIONAL FUND ADVISORS LP
$49.2M
905K
−0.5%
Reduced · −5K sh
Q1 2026
8VANGUARD PORTFOLIO MANAGEMENT LLC
$48.1M
884K
New
+884K sh
Q1 2026
9Impax Asset Management Group plc
$44.8M
823K
−2.6%
Reduced · −22K sh
Q1 2026
10GEODE CAPITAL MANAGEMENT, LLC
$40.7M
748K
+9.1%
Added · +63K sh
Q1 2026
11Woodline Partners LP
$38.2M
702K
+26%
Added · +143K sh
Q1 2026
12SOROS FUND MANAGEMENT LLC
$35.3M
649K
−12%
Reduced · −89K sh
Q1 2026
13Nuveen, LLC
$32.0M
588K
−9.8%
Reduced · −64K sh
Q1 2026
14FEDERATED HERMES, INC.
$30.9M
568K
+1.8%
Added · +10K sh
Q1 2026
15MORGAN STANLEY
$29.3M
538K
+1.0%
Added · +5K sh
Q1 2026
16TWO SIGMA INVESTMENTS, LP
$26.1M
479K
+69%
Added · +195K sh
Q1 2026
17CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$24.7M
453K
−5.6%
Reduced · −27K sh
Q1 2026
18Allspring Global Investments Holdings, LLC
$23.6M
419K
+14%
Added · +51K sh
Q1 2026
19Systematic Alpha Investments, LLC
$20.1M
370K
Held
Q1 2026
20JACOBS LEVY EQUITY MANAGEMENT, INC
$17.3M
318K
−24%
Reduced · −101K sh
Q1 2026
21Boston Trust Walden Corp
$15.3M
282K
New
+282K sh
Q1 2026
22NORTHERN TRUST CORP
$15.2M
279K
~0%
Added · +76 sh
Q1 2026
23WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
$14.4M
264K
+3.4%
Added · +9K sh
Q1 2026
24ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
$13.1M
241K
−53%
Reduced · −273K sh
Q1 2026
25North Reef Capital Management LP
$12.0M
220K
−50%
Reduced · −224K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
6
funds
Added
27
funds
Reduced
18
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$155.4M
4 insiders
Net
-$155.4M
5 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jun 17, 2026PAULSON & CO. INC.10% OwnerSell (S)1.9M$146.8M
Jun 15, 2026Trebbi BarbaraDirectorGift (G)10K$0
Jun 15, 2026Trebbi BarbaraDirectorGift (G)10K$0
Jun 12, 2026Chersi Robert JDirectorGrant (A)1K$0
Jun 12, 2026Paulson JohnDirector, 10% OwnerGrant (A)2K$0
Jun 12, 2026Trebbi BarbaraDirectorGrant (A)1K$0
May 14, 2026Paulson JohnDirector, 10% OwnerOption exercise (M)6K$0
May 14, 2026Paulson JohnDirector, 10% OwnerOption exercise (M)6K$0
May 14, 2026Chersi Robert JDirectorOption exercise (M)3K$0
May 14, 2026Chersi Robert JDirectorOption exercise (M)3K$0
May 14, 2026Trebbi BarbaraDirectorOption exercise (M)3K$0
May 14, 2026Trebbi BarbaraDirectorOption exercise (M)3K$0

Institutional ownership over time

195 funds+74 since Q3 2024
098195Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $1.8B

Funds that own AAMI also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT82 funds$40.5B
AMAZON.COM INCAMZN82 funds$29.7B
BROADCOM INCAVGO82 funds$21.6B
ELI LILLY & COLLY82 funds$10.1B
NVIDIA CORPNVDA81 funds$59.8B
ALPHABET INC-CL AGOOGL81 funds$26.6B
MASTERCARD INC - AMA81 funds$7.6B
MICRON TECHNOLOGY INCMU81 funds$7.3B
UNITEDHEALTH GROUP INCUNH81 funds$3.8B
SERVICENOW INCNOW81 funds$3.1B
APPLE INCAAPL80 funds$48.1B
META PLATFORMS INC-CLASS AMETA80 funds$18.5B

Ranked by how many of AAMI's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for AAMI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.