LBRX Institutional Ownership & Shareholders
LB PHARMACEUTICALS INC (LBRX) is currently held by 122 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $970.21M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Deep Track Capital, Lp is currently the largest disclosed institutional shareholder of LBRX tracked by InsiderSet, reporting ownership valued at approximately $108.82M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $133.11M, representing an estimated gain of +22.32% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 61% of the total disclosed LBRX value among the investors covered in this analysis. Major shareholders include Deep Track Capital, Lp, Blackrock, Inc., Ra Capital Management, L.P., and several other long-term asset managers with concentrated positions in LB PHARMACEUTICALS INC (LBRX).
This page ranks the largest institutional LBRX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
122
Total Reported Value
$970.21M
Largest Holder
Deep Track Capital, Lp
Largest Position
$108.82M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
133
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Deep Track Capital, Lp | 1.60% | 3,352,804 | $108,815,254 | $133,106,319 | +$24,291,065 | +22.32% | |
| Blackrock, Inc. | 0.00% | 2,734,305 | $88,741,868 | $108,551,909 | +$19,810,041 | +22.32% | |
| Ra Capital Management, L.P. | 0.62% | 2,208,604 | $71,680,243 | $87,681,579 | +$16,001,336 | +22.32% | |
| Trails Edge Capital Partners, Lp | 7.85% | 1,523,022 | $49,429,679 | $60,463,973 | +$11,034,294 | +22.32% | |
| Jpmorgan Chase & Co | 0.00% | 1,497,293 | $48,871,644 | $59,442,532 | +$10,570,888 | +21.63% | |
| Commodore Capital Lp | 2.90% | 1,500,000 | $48,682,500 | $59,550,000 | +$10,867,500 | +22.32% | |
| Tcg Crossover Management, Llc | 1.13% | 1,447,310 | $46,972,446 | $57,458,207 | +$10,485,761 | +22.32% | |
| Caligan Partners Lp | 2.25% | 1,438,070 | $46,672,562 | $57,091,379 | +$10,418,817 | +22.32% | |
| Spruce Street Capital Lp | 8.76% | 1,376,159 | $44,663,240 | $54,633,512 | +$9,970,272 | +22.32% | |
| Nantahala Capital Management, Llc | 2.06% | 1,052,894 | $34,171,675 | $41,799,892 | +$7,628,217 | +22.32% | |
| Vanguard Capital Management Llc | 0.00% | 971,165 | $31,519,160 | $38,555,251 | +$7,036,091 | +22.32% | |
| Balyasny Asset Management L.P. | 0.05% | 921,471 | $29,906,341 | $36,582,399 | +$6,676,058 | +22.32% | |
| Alyeska Investment Group, L.P. | 0.07% | 863,947 | $28,039,400 | $34,298,696 | +$6,259,296 | +22.32% | |
| Vivo Capital, Llc | 2.37% | 800,000 | $25,964,000 | $31,760,000 | +$5,796,000 | +22.32% | |
| Nan Fung Group Holdings Ltd | 15.57% | 630,657 | $20,467,973 | $25,037,083 | +$4,569,110 | +22.32% | |
| Geode Capital Management, Llc | 0.00% | 612,793 | $19,893,259 | $24,327,882 | +$4,434,623 | +22.29% | |
| State Street Corp | 0.00% | 602,028 | $19,538,819 | $23,900,512 | +$4,361,693 | +22.32% | |
| Logos Global Management Lp | 0.82% | 585,000 | $18,986,175 | $23,224,500 | +$4,238,325 | +22.32% | |
| Goldman Sachs Group Inc | 0.00% | 576,456 | $18,708,879 | $22,885,303 | +$4,176,424 | +22.32% | |
| Jennison Associates Llc | 0.01% | 540,902 | $17,554,973 | $21,473,809 | +$3,918,836 | +22.32% | |
| Great Point Partners Llc | 2.43% | 317,221 | $10,295,408 | $12,593,674 | +$2,298,266 | +22.32% | |
| Boothbay Fund Management, Llc | 0.17% | 275,675 | $8,947,032 | $10,944,298 | +$1,997,266 | +22.32% | |
| Millennium Management Llc | 0.01% | 259,219 | $8,412,953 | $10,290,994 | +$1,878,041 | +22.32% | |
| Ameriprise Financial Inc | 0.00% | 227,485 | $7,383,026 | $9,031,155 | +$1,648,129 | +22.32% | |
| Citadel Advisors Llc | 0.00% | 215,969 | $7,009,274 | $8,573,969 | +$1,564,695 | +22.32% | |
| Highvista Strategies Llc | 1.57% | 211,511 | $6,864,590 | $8,396,987 | +$1,532,397 | +22.32% | |
| Baker Bros. Advisors Lp | 0.03% | 200,000 | $6,491,000 | $7,940,000 | +$1,449,000 | +22.32% | |
| Charles Schwab Investment Management Inc | 0.00% | 195,486 | $6,344,498 | $7,760,794 | +$1,416,296 | +22.32% | |
| Fmr Llc | 0.00% | 188,907 | $6,130,990 | $7,499,608 | +$1,368,618 | +22.32% | |
| Northern Trust Corp | 0.00% | 186,037 | $6,037,831 | $7,385,669 | +$1,347,838 | +22.32% | |
| Eversept Partners, Lp | 0.32% | 183,663 | $5,960,783 | $7,291,421 | +$1,330,638 | +22.32% | |
| Vanguard Fiduciary Trust Co | 0.00% | 162,801 | $5,283,706 | $6,463,200 | +$1,179,494 | +22.32% | |
| Vanguard Portfolio Management Llc | 0.00% | 152,162 | $4,938,418 | $6,040,831 | +$1,102,413 | +22.32% | |
| Integral Health Asset Management, Llc | 0.20% | 150,000 | $4,868,250 | $5,955,000 | +$1,086,750 | +22.32% | |
| Raymond James Financial Inc | 0.00% | 91,656 | $2,974,695 | $3,638,743 | +$664,048 | +22.32% | |
| Bnp Paribas Financial Markets | 0.00% | 86,371 | $2,803,171 | $3,428,929 | +$625,758 | +22.32% | |
| Ubs Group Ag | 0.00% | 85,951 | $2,789,539 | $3,412,255 | +$622,716 | +22.32% | |
| Longbow Finance Sa | 0.34% | 82,336 | $2,672,215 | $3,268,739 | +$596,524 | +22.32% | |
| Boxer Capital Management, Llc | 0.17% | 70,000 | $2,271,850 | $2,779,000 | +$507,150 | +22.32% | |
| Nextbio Capital Management Lp | 1.02% | 68,249 | $2,215,021 | $2,709,485 | +$494,464 | +22.32% | |
| Wellington Management Group Llp | 0.00% | 58,891 | $1,911,308 | $2,337,973 | +$426,665 | +22.32% | |
| Bank Of New York Mellon Corp | 0.00% | 54,979 | $1,784,343 | $2,182,666 | +$398,323 | +22.32% | |
| Alerus Financial Na | 0.08% | 54,891 | $1,781,487 | $2,179,173 | +$397,686 | +22.32% | |
| Nuveen, Llc | 0.00% | 52,142 | $1,692,269 | $2,070,037 | +$377,768 | +22.32% | |
| Morgan Stanley | 0.00% | 51,207 | $1,661,922 | $2,032,918 | +$370,996 | +22.32% | |
| Janus Henderson Group Plc | 0.00% | 65,429 | $1,613,479 | $2,597,531 | +$984,052 | +60.99% | |
| Two Sigma Investments, Lp | 0.00% | 48,652 | $1,579,001 | $1,931,484 | +$352,483 | +22.32% | |
| Xtx Topco Ltd | 0.02% | 47,006 | $1,525,580 | $1,866,138 | +$340,558 | +22.32% | |
| Y-Intercept (Hong Kong) Ltd | 0.03% | 37,076 | $1,422,977 | $1,471,917 | +$48,940 | +3.44% | |
| Sigma Planning Corp | 0.03% | 30,000 | $1,151,400 | $1,191,000 | +$39,600 | +3.44% |
Frequently asked questions about LBRX
Who are the largest institutional holders of LBRX?
The largest institutional holders of LBRX reported in the latest SEC Form 13F filings include Deep Track Capital, Lp, Blackrock, Inc., Ra Capital Management, L.P., Trails Edge Capital Partners, Lp, and Jpmorgan Chase & Co. InsiderSet ranks institutional holders by their latest reported LBRX position.
What is LBRX institutional ownership?
This page tracks LBRX positions reported by institutional investment managers through SEC Form 13F. LB PHARMACEUTICALS INC (LBRX) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own LBRX?
InsiderSet currently tracks 122 institutional managers reporting LBRX holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of LBRX shareholders.
How much LBRX stock do institutions own?
Institutional investment managers disclosed approximately $970.21M in LBRX holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was LBRX institutional ownership last updated?
The latest LBRX institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional LBRX holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its LBRX position after the reporting date.
Are institutions buying or selling LBRX?
Institutional buying and selling can be analyzed by comparing LBRX positions across consecutive 13F reporting periods. InsiderSet's LBRX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View LBRX ownership changes.
How has LBRX institutional ownership changed over time?
InsiderSet tracks LBRX institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.