AMPH
Pharmaceuticals, Biotechnology & Life Sciences
CROWD: GREEN
Quiet institutional ownership. No unusual crowd behavior in the latest filings.
Active holders
60
of 213 total, index funds excluded
Streak
0q
consecutive rising quarters
The crowd, 2016 to now
active holders per quarter
2016Mar 2026
Holdings as of Mar 31, 2026, filed by May 16, 2026. Counts for the newest quarter keep settling for a few weeks as amendments land.
The tide
funds in (up) vs out (down)
Top holders
by reported value · $629M held
| Fund | Value | Note |
|---|
| BlackRock, Inc. |
$106M |
|
| DIMENSIONAL FUND ADVISORS LP |
$40M |
|
| STATE STREET CORP |
$31M |
|
| VANGUARD CAPITAL MANAGEMENT… |
$30M |
|
| TD Asset Management Inc |
$30M |
|
| FULLER & THALER ASSET MANAG… |
$27M |
|
| MARSHALL WACE, LLP |
$20M |
|
| AMERICAN CENTURY COMPANIES … |
$20M |
|
| GEODE CAPITAL MANAGEMENT, L… |
$19M |
|
| Boston Trust Walden Corp |
$19M |
|
Tourists vs true believers
every holder a dot · right = bigger bet in their own book, up = patient money
Hover any dot for the fund and its bet size. Patience is measured from each filer's actual quarter-to-quarter turnover across our whole database.