Stock ownership · SEC 13F · Q4 2025

AFFILIATED MANAGERS GROUP IN

Institutional ownership of AFFILIATED MANAGERS GROUP IN (CUSIP 008252108) - who holds it, how concentrated it is, and what moved last quarter.

$1.2M
Reported value
3
Institutions
100%
Top-5 share

The verdict

3 institutions report $1.2M of AFFILIATED MANAGERS GROUP IN positions as of Q4 2025, with ownership heavily concentrated in a handful of holders.

3
institutions hold it
$1.2M
reported 13F value
100%
held by top 5

Based on long positions reported to the SEC as of Q4 2025; 13F omits shorts, options and non-US holdings.

How 13F ownership is computed · All tracked stocks · Concentration rankings

SEC Form 13F-HR ownership desk

CUSIP 008252108 · Q4 2025 $1M reported

VALUE-TRACE · HOLDERS-FOCUS · CONC-DOM · PHOTO-UNK · ACTIVITY-LIGHT · BOOK-MID

  • VALUE-TRACE $1.2M
  • HOLDERS-FOCUS 3 filers
  • CONC-DOM 100% top-5
  • PHOTO-UNK No peer
  • ACTIVITY-LIGHT 2 new
  • BOOK-MID 7Q history

Read with: Ownership concentration guide - AFFILIATED MANAGERS GROUP IN's top-five holders account for 100% of reported value — read concentration before treating any single filer as a signal.

Largest institutional holders of AFFILIATED MANAGERS GROUP IN
  1. 1
  2. 2
  3. 3

Top 3 reported holders by value · Q4 2025

Institutional ownership over time

The number of institutions reporting a AFFILIATED MANAGERS GROUP IN position has held steady from 3 to 3 over the last 7 quarters of 13F filings.

2.533.544.555.5 Q1'24Q3'24Q4'24Q1'25Q2'25Q3'25Q4'25 3
Distinct 13F filers holding AFFILIATED MANAGERS GROUP IN, by quarter

Top Institutional Holders

# Institution Shares Value Share of reported
1 Pacer Advisors, Inc. 3,367 $971K 80.2%
2 DGS Capital Management, LLC 763 $220K 18.2%
3 Bell Investment Advisors, Inc 68 $20K 1.6%

Investment Discretion

SEC Form 13F requires each institutional filer to report whether it exercises sole or shared discretion over a position. Among AFFILIATED MANAGERS GROUP IN's reported holders for Q4 2025, by reported value:

Sole discretion (SOLE)
100.0%

Latest Quarter Activity · Q4 2025

Frequently Asked Questions

How many institutions hold AFFILIATED MANAGERS GROUP IN?
AFFILIATED MANAGERS GROUP IN is held by 3 institutional investors per the latest SEC Form 13F filings as of Q4 2025.
What is the total institutional value of AFFILIATED MANAGERS GROUP IN?
Institutions report $1.2M of AFFILIATED MANAGERS GROUP IN as of Q4 2025.
How concentrated is ownership of AFFILIATED MANAGERS GROUP IN?
The top five institutional holders account for 100% of the reported institutional value in AFFILIATED MANAGERS GROUP IN, making ownership heavily concentrated in a handful of holders.
Who is the largest institutional holder of AFFILIATED MANAGERS GROUP IN?
Pacer Advisors, Inc. is the largest reported holder of AFFILIATED MANAGERS GROUP IN with $971K across 3,367 shares as of Q4 2025.

Source: U.S. Securities and Exchange Commission (SEC) - EDGAR Form 13F-HR institutional holdings filings · Q4 2025 13F-HR discloses long US-listed equity positions of managers with $100M+ qualifying assets, filed within 45 days of period end. Short positions and most derivatives are not disclosed.

PlainFundData is rendered directly from SEC EDGAR Form 13F-HR institutional holdings filings, no number is typed in by an editor. Holder lists, concentration, and reported value on this page are aggregated live from those 13F-HR extracts. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-16.