Security key
61559X104
MoonLake Immunotherapeutics - COMMON STOCK (MLTX)
CUSIP: 61559X104
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 63,048,824
- Total 13F value
- $1,173,300,860
- Share change
- +6,588,955
- Put/Call ratio
- 25%
- SEC-reported price per share
- $18.64
- Number of holders
- 147
- Value change
- +$130,740,817
- Number of buys
- 85
- Number of sells
- 63
- Shares outstanding
- 80,766,491
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
147
Top holders
10
MLTX full security history
Ownership snapshot
Full 13F holder table
MoonLake Immunotherapeutics SEC filings
MoonLake Immunotherapeutics company facts
Broader feeds
Ownership snapshot
Top reported holders of MLTX - MoonLake Immunotherapeutics - 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
PRICE T ROWE ASSOCIATES I...
Disclosed value leader
BVF INC/IL
Comparable rows
15/15
Latest evidence
31 Dec 2025
13D/G
13F
3/4/5
Lead comparable stake: 4.7%
13D/G row: PRICE T ROWE ASSOCIATES INC /MD/
Showing 1-6 of 15 holder rows.
Quick read
PRICE T ROWE ASSOCIATES INC /MD/ leads the comparable SEC ownership view at 4.7%.
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 PRICE T ROWE ASSOCIATES INC /MD/'s linked filing trail.
Comparable ownership
Top 5
PRICE T ROWE ASSOCIATES INC /MD/
4.7%
Avoro Capital Advisors LLC
3.2%
Bihua Chen
3.1%
FMR LLC
1.1%
BVF INC/IL
24%
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 |
|---|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ |
13D/G
13F
T. Rowe Price Associates, Inc. · Company
|
4.7%
|
$117,334,991
2,974,271 shares
|
-$14,571,725 | 31 Mar 2025 |
| Avoro Capital Advisors LLC |
13D/G
|
3.2%
|
$14,340,000
2,000,000 shares
|
-$15,415,500 | 30 Sep 2025 |
| Bihua Chen |
13D/G
3/4/5
Chen Bihua · Former 10% Owner
|
3.1%
|
$108,084,177
1,994,173 shares
|
$0 | 30 Sep 2025 |
| FMR LLC |
13D/G
13F
Company
|
1.1%
|
$5,212,098
726,931 shares
|
-$35,678,759 | 30 Sep 2025 |
| BVF INC/IL |
13F
Company
|
24%
|
$260,321,923
19,751,284 shares
|
— | 31 Dec 2025 |
| Deep Track Capital, LP |
13F
Company
|
5.7%
|
$60,760,736
4,610,071 shares
|
— | 31 Dec 2025 |
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
147
Shares
63,048,824
Rows available
147
| 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
147
Q1 2026 holders
147
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|