Security key
04351P101
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 54,718,678
- Total 13F value
- $12,504,610,400
- Share change
- -9,986,514
- Put/Call ratio
- 16%
- SEC-reported price per share
- $228.73
- Number of holders
- 266
- Value change
- -$2,135,196,263
- Number of buys
- 139
- Number of sells
- 168
- Shares outstanding
- 62,915,156
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
266
Top holders
10
ASND full security history
Ownership snapshot
Full 13F holder table
Ascendis Pharma A/S SEC filings
Ascendis Pharma A/S company facts
Broader feeds
Ownership snapshot
Top reported holders of ASND - Ascendis Pharma A/S - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
WESTFIELD CAPITAL MANAGEM...
Disclosed value leader
RA CAPITAL MANAGEMENT, L.P.
Comparable rows
15/15
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 8.5%
13D/G row: WESTFIELD CAPITAL MANAGEMENT CO LP
Showing 1-6 of 15 holder rows.
Quick read
WESTFIELD CAPITAL MANAGEMENT CO LP leads the comparable SEC ownership view at 8.5%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens WESTFIELD CAPITAL MANAGEMENT CO LP's linked filing trail.
Comparable ownership
Top 5
WESTFIELD CAPITAL MANAGEMENT CO LP
8.5%
FMR LLC
6.6%
Janus Henderson Group Ltd.
6%
Artisan Partners Limited Partnership
5.2%
Capital International Investors
3.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| WESTFIELD CAPITAL MANAGEMENT CO LP |
13D/G
13F
Westfield Capital Management Company, L.P. · Company
|
8.5%
|
$1,115,183,925
5,185,696 shares
|
-$73,663,872 | 31 Dec 2025 |
| FMR LLC |
13D/G
13F
Company
|
6.6%
|
$957,439,699
3,852,101 shares
|
-$197,557,979 | 31 Mar 2026 |
| Janus Henderson Group Ltd. |
13D/G
13F
JANUS HENDERSON GROUP PLC · Company
|
6%
|
$924,469,795
3,719,452 shares
|
-$150,026,520 | 31 Mar 2026 |
| Artisan Partners Limited Partnership |
13D/G
13F
Artisan Partners Asset Management Inc. · Company
|
5.2%
|
$687,887,717
3,225,885 shares
|
$0 | 31 Dec 2025 |
| Capital International Investors |
13F
13D/G
Company
|
3.2%
from 13D/G
|
$653,355,205
3,063,943 shares
|
— | 31 Dec 2025 |
| Jan Moller Mikkelsen |
3/4/5
Director
|
0.72%
|
$106,545,170
453,403 shares
|
— | 18 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
266
Shares
54,718,678
Rows available
266
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
266
Q1 2026 holders
266
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|