DOSSIER · 13F Holders · Q1 2026Most-boughtAI cap-ex

ASCENDIS PHARMA A/S

6 institutions still hold ASCENDIS PHARMA A/S as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 04351P901·6 13F holders·last filed Mar 31, 2026
Market cap
0.2%
vs prior quarter
13F value held
$33M
77.0% inst. owned
of float
Holders
6
-17 QoQ
filers reporting
Activity
+75 / −30
+871 added · −776 reduced
this quarter
Concentration
33.11%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q1 2026

6 institutions reported ASCENDIS PHARMA A/S in Q1 2026. IMC-Chicago, LLC leads at 33.1% of the visible book. -17 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$11M47K0.00%Q1 2026
02
JPMORGAN CHASE & CO
CIK 0000019617
$8M35K0.00%Q1 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$7M32K0.01%Q1 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$7M30K0.00%Q1 2026
05
Q Global Advisors, LLC
CIK 0001469589
$9,37841K8.27%Q1 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025