LB PHARMACEUTICALS INC - LBRX

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
Deep Track Capital, LP History No change 3,352,804 82,680 1.35% 1.33% 1 0 0.0% Q1 2026 May 15, 2026
BlackRock, Inc. History Added to 2,470,845 60,931 0.0% 0.0% 2 +231,911 10.36% Q1 2026 May 13, 2026
RA CAPITAL MANAGEMENT, L.P. History No change 2,208,604 54,464 0.58% 0.5% 3 0 0.0% Q1 2026 May 15, 2026
TCG Crossover Management, LLC History Added to 1,839,489 45,279 1.3% 1.29% 4 +94,474 5.41% Q1 2026 May 15, 2026
Commodore Capital LP History No change 1,500,000 36,990 2.14% 2.22% 5 0 0.0% Q1 2026 May 15, 2026
Caligan Partners LP History New 1,438,070 34,628 2.3% 6 +1,438,070 New Q1 2026 May 15, 2026
Spruce Street Capital LP History Added to 1,376,159 33,644 8.09% 7.4% 7 +370,566 36.85% Q1 2026 May 14, 2026
JPMORGAN CHASE & CO History Reduced 1,427,568 33,190 0.0% 0.0% 8 -183,914 -11.41% Q1 2026 May 13, 2026
Trails Edge Capital Partners, LP History Reduced 1,319,362 32,535 7.45% 7.68% 9 -76,246 -5.46% Q1 2026 May 15, 2026
Nantahala Capital Management, LLC History Added to 1,052,894 25,964 0.96% 0.5% 10 +377,894 55.98% Q1 2026 May 15, 2026
VANGUARD GROUP INC History No change 1,112,978 24,774 0.0% 0.0% 11 0 0.0% Q4 2025 Jan 29, 2026
BALYASNY ASSET MANAGEMENT L.P. History Added to 923,694 22,778 0.03% 0.03% 12 +26,888 3.0% Q1 2026 May 15, 2026
Logos Global Management LP History Reduced 915,000 22,563 1.13% 1.61% 13 -285,000 -23.75% Q1 2026 May 15, 2026
VANGUARD CAPITAL MANAGEMENT LLC History New 894,653 22,062 0.0% 14 +894,653 New Q1 2026 May 15, 2026
Alyeska Investment Group, L.P. History Added to 863,947 21,283 0.06% 0.04% 15 +188,947 27.99% Q1 2026 May 15, 2026
Vivo Capital, LLC History No change 800,000 19,728 1.64% 1.15% 16 0 0.0% Q1 2026 May 20, 2026
Nan Fung Group Holdings Ltd History Added to 630,657 15,552 12.82% 5.98% 17 +330,657 110.22% Q1 2026 May 14, 2026
JENNISON ASSOCIATES LLC History Reduced 538,216 13,272 0.01% 0.01% 18 -283,636 -34.51% Q1 2026 May 06, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 518,228 12,783 0.0% 0.0% 19 +76,774 17.39% Q1 2026 May 15, 2026
STATE STREET CORP History Added to 504,373 12,437 0.0% 0.0% 20 +254,343 101.72% Q1 2026 May 15, 2026
CITADEL ADVISORS LLC History Added to 416,906 10,280 0.0% 0.0% 21 +9,238 2.27% Q1 2026 May 15, 2026
GOLDMAN SACHS GROUP INC History Added to 363,799 8,971 0.0% 0.0% 22 +60,684 20.02% Q1 2026 May 15, 2026
GREAT POINT PARTNERS LLC History New 300,000 7,398 1.7% 23 +300,000 New Q1 2026 May 15, 2026
FMR LLC History Added to 222,508 5,487 0.0% 0.0% 24 +643 0.29% Q1 2026 May 15, 2026
BAKER BROS. ADVISORS LP History No change 200,000 4,932 0.03% 0.03% 25 0 0.0% Q1 2026 May 15, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Added to 186,095 4,589 0.0% 0.0% 26 +8,479 4.77% Q1 2026 May 15, 2026
HighVista Strategies LLC History Added to 173,595 4,280 1.18% 0.8% 27 +33,488 23.9% Q1 2026 May 15, 2026
VANGUARD FIDUCIARY TRUST CO History New 157,426 3,882 0.0% 28 +157,426 New Q1 2026 May 08, 2026
NORTHERN TRUST CORP History Added to 154,398 3,807 0.0% 0.0% 29 +10,432 7.25% Q1 2026 May 14, 2026
Integral Health Asset Management, LLC History Added to 150,000 3,699 0.18% 0.11% 30 +50,000 50.0% Q1 2026 May 15, 2026
UBS Group AG History Added to 137,932 3,401 0.0% 0.0% 31 +87,219 171.99% Q1 2026 May 05, 2026
MILLENNIUM MANAGEMENT LLC History New 136,966 3,377 0.0% 32 +136,966 New Q1 2026 May 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History New 112,497 2,774 0.0% 33 +112,497 New Q1 2026 May 08, 2026
AMERIPRISE FINANCIAL INC History Reduced 108,307 2,670 0.0% 0.0% 34 -85,237 -44.04% Q1 2026 May 15, 2026
Eversept Partners, LP History New 100,198 2,470 0.13% 35 +100,198 New Q1 2026 May 15, 2026
Russell Investments Group, Ltd. History Added to 72,067 1,777 0.0% 0.0% 36 +70,542 4625.7% Q1 2026 May 08, 2026
Boxer Capital Management, LLC History No change 70,000 1,726 0.23% 0.34% 37 0 0.0% Q1 2026 May 15, 2026
JANUS HENDERSON GROUP PLC History New 65,429 1,613 0.0% 38 +65,429 New Q1 2026 May 18, 2026
WELLINGTON MANAGEMENT GROUP LLP History New 52,640 1,298 0.0% 39 +52,640 New Q1 2026 May 15, 2026
STEMPOINT CAPITAL LP History New 50,000 1,233 0.24% 40 +50,000 New Q1 2026 May 15, 2026
MORGAN STANLEY History Added to 47,280 1,165 0.0% 0.0% 41 +22,639 91.88% Q1 2026 May 15, 2026
Bank of New York Mellon Corp History Added to 45,457 1,120 0.0% 0.0% 42 +4,940 12.19% Q1 2026 May 05, 2026
ACUTA CAPITAL PARTNERS, LLC History Reduced 28,919 713 0.5% 0.45% 43 -1,081 -3.6% Q1 2026 May 15, 2026
Calamos Advisors LLC History New 24,063 593 0.0% 44 +24,063 New Q1 2026 May 04, 2026
Nuveen, LLC History No change 22,966 566 0.0% 0.0% 45 0 0.0% Q1 2026 Apr 30, 2026
Focus Partners Wealth History Reduced 19,815 488 0.0% 0.0% 46 -280 -1.39% Q1 2026 May 14, 2026
NORGES BANK History No change 20,000 445 0.0% 0.0% 47 0 0.0% Q4 2025 Feb 10, 2026
RHUMBLINE ADVISERS History Added to 17,103 421 0.0% 0.0% 48 +820 5.04% Q1 2026 May 12, 2026
BANK OF AMERICA CORP /DE/ History Reduced 16,618 409 0.0% 0.0% 49 -27,140 -62.02% Q1 2026 May 15, 2026
DEUTSCHE BANK AG\ History Added to 15,359 378 0.0% 0.0% 50 +2,061 15.5% Q1 2026 May 06, 2026
MEYER HANDELMAN CO History New 15,094 372 0.01% 51 +15,094 New Q1 2026 Apr 20, 2026
Opaleye Management Inc. History New 14,506 357 0.05% 52 +14,506 New Q1 2026 May 15, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 13,229 327 0.0% 0.0% 53 +2,155 19.46% Q1 2026 May 15, 2026
TWO SIGMA INVESTMENTS, LP History No change 12,720 313 0.0% 0.0% 54 0 0.0% Q1 2026 May 15, 2026
MetLife Investment Management, LLC History No change 11,104 273 0.0% 0.0% 55 0 0.0% Q1 2026 May 14, 2026
Invesco Ltd. History Reduced 10,729 264 0.0% 0.0% 56 -226 -2.06% Q1 2026 May 12, 2026
Soleus Capital Management, L.P. History No change 10,000 246 0.01% 0.01% 57 0 0.0% Q1 2026 May 14, 2026
Quadrature Capital Ltd History New 9,931 244 0.0% 58 +9,931 New Q1 2026 May 15, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 9,170 226 0.0% 0.0% 59 +204 2.28% Q1 2026 May 15, 2026
Vanguard Global Advisers, LLC History New 8,753 215 0.0% 60 +8,753 New Q1 2026 May 08, 2026
WELLS FARGO & COMPANY/MN History Reduced 8,623 212 0.0% 0.0% 61 -13,680 -61.34% Q1 2026 May 11, 2026
NEW YORK STATE COMMON RETIREMENT FUND History New 6,100 150 0.0% 62 +6,100 New Q1 2026 May 06, 2026
Police & Firemen's Retirement System of New Jersey History Added to 6,041 148 0.0% 0.0% 63 +1,616 36.52% Q1 2026 Apr 29, 2026
CITIGROUP INC History Added to 5,569 137 0.0% 0.0% 64 +5,134 1180.23% Q1 2026 May 11, 2026
STRS OHIO History Added to 5,100 125 0.0% 0.0% 65 +1,700 50.0% Q1 2026 Apr 24, 2026
FEDERATED HERMES, INC. History No change 5,000 123 0.0% 0.0% 66 0 0.0% Q1 2026 May 11, 2026
BARCLAYS PLC History Reduced 4,530 111 0.0% 0.0% 67 -25,685 -85.01% Q1 2026 May 14, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 4,052 99 0.0% 0.0% 68 +45 1.12% Q1 2026 May 12, 2026
Legal & General Group Plc History Reduced 1,723 42 0.0% 0.0% 69 -155 -8.25% Q1 2026 May 08, 2026
Tower Research Capital LLC (TRC) History Added to 1,661 40 0.0% 0.0% 70 +300 22.04% Q1 2026 May 15, 2026
Ameritas Investment Partners, Inc. History No change 1,562 38 0.0% 0.0% 71 0 0.0% Q1 2026 May 13, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 1,041 25 0.0% 0.0% 72 -143 -12.08% Q1 2026 May 15, 2026
Sterling Capital Management LLC History Reduced 368 9 0.0% 0.0% 73 -224 -37.84% Q1 2026 Apr 22, 2026
GAMMA Investing LLC History Added to 162 3 0.0% 74 +148 1057.14% Q1 2026 Apr 06, 2026
PNC FINANCIAL SERVICES GROUP, INC. History New 145 3 0.0% 75 +145 New Q1 2026 May 08, 2026
MassMutual Private Wealth & Trust, FSB History New 54 1 0.0% 76 +54 New Q1 2026 Apr 13, 2026
Longbow Finance SA History Closed out 0 0 0.31% -82,336 -100.0% Q1 2026 May 12, 2026
JANE STREET GROUP, LLC History Closed out 0 0 0.0% -31,733 -100.0% Q1 2026 May 12, 2026
XTX Topco Ltd History Closed out 0 0 0.01% -19,121 -100.0% Q1 2026 May 15, 2026
MARSHALL WACE, LLP History Closed out 0 0 0.0% -18,014 -100.0% Q1 2026 May 14, 2026
Jefferies Financial Group Inc. History Closed out 0 0 0.0% -12,445 -100.0% Q1 2026 May 07, 2026
SG Americas Securities, LLC History Closed out 0 0 0.0% -6,434 -100.0% Q1 2026 Apr 16, 2026
Persistent Asset Partners Ltd History Closed out 0 0 0.04% -4,080 -100.0% Q1 2026 May 12, 2026
ROYAL BANK OF CANADA History Closed out 0 0 0.0% -767 -100.0% Q1 2026 May 15, 2026
AMALGAMATED BANK History Closed out 0 0 0.0% -605 -100.0% Q1 2026 May 08, 2026
CWM, LLC History Added to 29 0 +21 262.5% Q1 2026 May 14, 2026
Allworth Financial LP History New 1 0 +1 New Q1 2026 May 14, 2026
EverSource Wealth Advisors, LLC History New 1 0 +1 New Q1 2026 May 15, 2026