LB PHARMACEUTICALS INC (LBRX) Institutional Shareholders
LB PHARMACEUTICALS INC (LBRX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $967.17M in LBRX holdings during the latest filing period.
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 $142.39M, representing an estimated gain of +30.86% 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
113
Total Reported Value
$967.17M
Largest Holder
Deep Track Capital, Lp
Largest Position
$108.82M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
123
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 | $142,393,586 | +$33,578,332 | +30.86% | |
| Blackrock, Inc. | 0.00% | 2,734,305 | $88,741,868 | $116,125,933 | +$27,384,065 | +30.86% | |
| Ra Capital Management, L.P. | 0.62% | 2,208,604 | $71,680,243 | $93,799,412 | +$22,119,169 | +30.86% | |
| Trails Edge Capital Partners, Lp | 7.85% | 1,523,022 | $49,429,679 | $64,682,744 | +$15,253,065 | +30.86% | |
| Jpmorgan Chase & Co | 0.00% | 1,497,293 | $48,871,644 | $63,590,034 | +$14,718,390 | +30.12% | |
| Commodore Capital Lp | 2.90% | 1,500,000 | $48,682,500 | $63,705,000 | +$15,022,500 | +30.86% | |
| Tcg Crossover Management, Llc | 1.13% | 1,447,310 | $46,972,446 | $61,467,256 | +$14,494,810 | +30.86% | |
| Caligan Partners Lp | 2.25% | 1,438,070 | $46,672,562 | $61,074,833 | +$14,402,271 | +30.86% | |
| Spruce Street Capital Lp | 8.76% | 1,376,159 | $44,663,240 | $58,445,473 | +$13,782,233 | +30.86% | |
| Nantahala Capital Management, Llc | 2.06% | 1,052,894 | $34,171,675 | $44,716,408 | +$10,544,733 | +30.86% | |
| Vanguard Capital Management Llc | 0.00% | 971,165 | $31,519,160 | $41,245,378 | +$9,726,218 | +30.86% | |
| Balyasny Asset Management L.P. | 0.05% | 921,471 | $29,906,341 | $39,134,873 | +$9,228,532 | +30.86% | |
| Alyeska Investment Group, L.P. | 0.07% | 863,947 | $28,039,400 | $36,691,829 | +$8,652,429 | +30.86% | |
| Vivo Capital, Llc | 2.37% | 800,000 | $25,964,000 | $33,976,000 | +$8,012,000 | +30.86% | |
| Nan Fung Group Holdings Ltd | 15.57% | 630,657 | $20,467,973 | $26,784,003 | +$6,316,030 | +30.86% | |
| Geode Capital Management, Llc | 0.00% | 612,793 | $19,893,259 | $26,025,319 | +$6,132,060 | +30.82% | |
| State Street Corp | 0.00% | 602,028 | $19,538,819 | $25,568,129 | +$6,029,310 | +30.86% | |
| Logos Global Management Lp | 0.82% | 585,000 | $18,986,175 | $24,844,950 | +$5,858,775 | +30.86% | |
| Goldman Sachs Group Inc | 0.00% | 576,456 | $18,708,879 | $24,482,086 | +$5,773,207 | +30.86% | |
| Jennison Associates Llc | 0.01% | 540,902 | $17,554,973 | $22,972,108 | +$5,417,135 | +30.86% | |
| Great Point Partners Llc | 2.43% | 317,221 | $10,295,408 | $13,472,376 | +$3,176,968 | +30.86% | |
| Boothbay Fund Management, Llc | 0.17% | 275,675 | $8,947,032 | $11,707,917 | +$2,760,885 | +30.86% | |
| Millennium Management Llc | 0.01% | 259,219 | $8,412,953 | $11,009,031 | +$2,596,078 | +30.86% | |
| Ameriprise Financial Inc | 0.00% | 227,485 | $7,383,026 | $9,661,288 | +$2,278,262 | +30.86% | |
| Citadel Advisors Llc | 0.00% | 215,969 | $7,009,274 | $9,172,203 | +$2,162,929 | +30.86% | |
| Highvista Strategies Llc | 1.57% | 211,511 | $6,864,590 | $8,982,872 | +$2,118,282 | +30.86% | |
| Baker Bros. Advisors Lp | 0.03% | 200,000 | $6,491,000 | $8,494,000 | +$2,003,000 | +30.86% | |
| Charles Schwab Investment Management Inc | 0.00% | 195,486 | $6,344,498 | $8,302,290 | +$1,957,792 | +30.86% | |
| Fmr Llc | 0.00% | 188,907 | $6,130,990 | $8,022,880 | +$1,891,890 | +30.86% | |
| Northern Trust Corp | 0.00% | 186,037 | $6,037,831 | $7,900,991 | +$1,863,160 | +30.86% | |
| Eversept Partners, Lp | 0.32% | 183,663 | $5,960,783 | $7,800,168 | +$1,839,385 | +30.86% | |
| Vanguard Fiduciary Trust Co | 0.00% | 162,801 | $5,283,706 | $6,914,158 | +$1,630,452 | +30.86% | |
| Vanguard Portfolio Management Llc | 0.00% | 152,162 | $4,938,418 | $6,462,320 | +$1,523,902 | +30.86% | |
| Integral Health Asset Management, Llc | 0.20% | 150,000 | $4,868,250 | $6,370,500 | +$1,502,250 | +30.86% | |
| Raymond James Financial Inc | 0.00% | 91,656 | $2,974,695 | $3,892,630 | +$917,935 | +30.86% | |
| Bnp Paribas Financial Markets | 0.00% | 86,371 | $2,803,171 | $3,668,176 | +$865,005 | +30.86% | |
| Ubs Group Ag | 0.00% | 85,951 | $2,789,539 | $3,650,339 | +$860,800 | +30.86% | |
| Longbow Finance Sa | 0.34% | 82,336 | $2,672,215 | $3,496,810 | +$824,595 | +30.86% | |
| Boxer Capital Management, Llc | 0.17% | 70,000 | $2,271,850 | $2,972,900 | +$701,050 | +30.86% | |
| Nextbio Capital Management Lp | 1.02% | 68,249 | $2,215,021 | $2,898,535 | +$683,514 | +30.86% | |
| Wellington Management Group Llp | 0.00% | 58,891 | $1,911,308 | $2,501,101 | +$589,793 | +30.86% | |
| Bank Of New York Mellon Corp | 0.00% | 54,979 | $1,784,343 | $2,334,958 | +$550,615 | +30.86% | |
| Alerus Financial Na | 0.08% | 54,891 | $1,781,487 | $2,331,221 | +$549,734 | +30.86% | |
| Nuveen, Llc | 0.00% | 52,142 | $1,692,269 | $2,214,471 | +$522,202 | +30.86% | |
| Morgan Stanley | 0.00% | 51,207 | $1,661,922 | $2,174,761 | +$512,839 | +30.86% | |
| Janus Henderson Group Plc | 0.00% | 65,429 | $1,613,479 | $2,778,770 | +$1,165,291 | +72.22% | |
| Two Sigma Investments, Lp | 0.00% | 48,652 | $1,579,001 | $2,066,250 | +$487,249 | +30.86% | |
| Xtx Topco Ltd | 0.02% | 47,006 | $1,525,580 | $1,996,345 | +$470,765 | +30.86% | |
| Y-Intercept (Hong Kong) Ltd | 0.03% | 39,413 | $1,279,149 | $1,673,870 | +$394,721 | +30.86% | |
| Russell Investments Group, Ltd. | 0.00% | 34,074 | $1,105,889 | $1,447,123 | +$341,234 | +30.86% |
Frequently asked questions about LBRX
Who owns the most LBRX stock?
The largest holders of LBRX are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for LB PHARMACEUTICALS INC (LBRX).
Is LBRX widely held by superinvestors?
Many widely followed stocks like LBRX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly LBRX is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.