Security key
50180M108
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 28,209,904
- Total 13F value
- $692,418,818
- Share change
- +3,359,941
- SEC-reported price per share
- $24.66
- Number of holders
- 77
- Value change
- +$82,664,759
- Number of buys
- 46
- Number of sells
- 24
- Shares outstanding
- 28,516,556
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
77
Top holders
10
LBRX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Previous quarter: Q4 2025
LB PHARMACEUTICALS INC SEC filings
LB PHARMACEUTICALS INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 50180M108
Recent filing periods:
Ownership snapshot
Top reported holders of LBRX - LB PHARMACEUTICALS INC - 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
Deep Track Capital, LP
Disclosed value leader
Deep Track Capital, LP
Comparable rows
15/15
Latest evidence
31 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 15%
13D/G row: Deep Track Capital, LP
Showing 1-6 of 15 holder rows.
Quick read
Deep Track Capital, LP leads the comparable SEC ownership view at 15%.
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 Deep Track Capital, LP's linked filing trail.
Comparable ownership
Top 5
Deep Track Capital, LP
15%
RA CAPITAL MANAGEMENT, L.P.
8.7%
Commodore Capital LP
6.8%
TCG Crossover GP II, LLC
6.4%
Pontifax Management 4 G.P. (2015)...
6.3%
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 |
|---|---|---|---|---|---|
| Deep Track Capital, LP |
13F
13D/G
Company
|
15%
from 13D/G
|
$74,633,417
3,352,804 shares
|
— | 31 Dec 2025 |
| RA CAPITAL MANAGEMENT, L.P. |
13F
13D/G
Company
|
8.7%
from 13D/G
|
$49,163,525
2,208,604 shares
|
— | 31 Dec 2025 |
| Commodore Capital LP |
13D/G
13F
Company
|
6.8%
|
$48,007,461
1,972,369 shares
|
+$18,190,961 | 31 Mar 2026 |
| TCG Crossover GP II, LLC |
13D/G
|
6.4%
|
$44,773,162
1,839,489 shares
|
+$2,299,497 | 31 Mar 2026 |
| Pontifax Management 4 G.P. (2015) Ltd. |
3/4/5
13D/G
10%+ Owner
|
6.3%
from 13D/G
|
—
1,411,681 shares
|
— | 12 Sep 2025 |
| Caligan Partners LP |
13D/G
|
5%
|
$35,002,624
1,438,070 shares
|
$0 | 31 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
77
Shares
28,209,904
Rows available
77
| 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 Q4 2025 Across Filers
Q4 2025 holders
67
Q1 2026 holders
77
Holder diff
10
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend