Security key
N62509109
NewAmsterdam Pharma Co N.V. - COMMON STOCK (NAMS)
CUSIP: N62509109
Q1 2023 13F Holders as of 31 Mar 2023
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 33,346,896
- Total 13F value
- $444,858,187
- Share change
- -169,940
- SEC-reported price per share
- $13.26
- Number of holders
- 19
- Value change
- +$689,119
- Number of buys
- 12
- Number of sells
- 3
- Shares outstanding
- 117,496,170
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2023
Institutions
19
Top holders
10
NAMS full security history
Ownership snapshot
Full 13F holder table
NewAmsterdam Pharma Co N.V. SEC filings
NewAmsterdam Pharma Co N.V. company facts
Broader feeds
Ownership snapshot
Top reported holders of NAMS - NewAmsterdam Pharma Co N.V. - 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
VIKING GLOBAL INVESTORS LP
Disclosed value leader
Frazier Life Sciences Man...
Comparable rows
7/15
Latest evidence
31 Dec 2022
13F
Lead comparable stake: 3.2%
8 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
VIKING GLOBAL INVESTORS LP leads the comparable SEC ownership view at 3.2%.
7 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 VIKING GLOBAL INVESTORS LP's linked filing trail.
Comparable ownership
Top 5
VIKING GLOBAL INVESTORS LP
3.2%
Medicxi Ventures Management (Jers...
1.7%
BVF INC/IL
1.3%
GMT CAPITAL CORP
0.85%
Janus Henderson Group Ltd.
0.48%
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 |
|---|---|---|---|---|---|
| VIKING GLOBAL INVESTORS LP |
13F
Company
|
3.2%
|
$39,490,271
3,753,828 shares
|
— | 31 Dec 2022 |
| Medicxi Ventures Management (Jersey) Ltd |
13F
Company
|
1.7%
|
$21,800,000
2,000,000 shares
|
— | 31 Dec 2022 |
| BVF INC/IL |
13F
Company
|
1.3%
|
$16,010,893
1,521,948 shares
|
— | 31 Dec 2022 |
| GMT CAPITAL CORP |
13F
Company
|
0.85%
|
$10,900,000
1,000,000 shares
|
— | 31 Dec 2022 |
| Janus Henderson Group Ltd. |
13F
Company
|
0.48%
|
$5,331,611
563,119 shares
|
— | 31 Dec 2022 |
| JPMORGAN CHASE & CO |
13F
Company
|
0%
|
$12,000
1,102 shares
|
— | 31 Dec 2022 |
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 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
19
Shares
33,346,896
Rows available
19
| 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 2023 vs Q1 2023 Across Filers
Q1 2023 holders
19
Q1 2023 holders
19
Holder diff
0
| Investor | Q1 2023 Shares | Q1 2023 Shares | Share Diff | Share Chg % | Q1 2023 value | Q1 2023 value | Value change | Value Chg % |
|---|