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United States Biotechnology & Medical Research

LB Pharmaceuticals Inc (LBRX)

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Over the last 90 days, LB Pharmaceuticals Inc. has seen one insider transaction, a proposed sale valued at $486,566 by a former officer. This contrasts with earlier significant buying activity in September 2025 from entities like Pontifax Management and Deep Track Biotechnology. The stock has seen a 17.4% increase in the past 90 days.
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Ticker: LBRX Exchange: NMS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
PRENSKY ZACHARY
Former Officer
1 sale — total 100,000 USD
Proposed sale 9 Jun 2026
Value US$3,497,395.27 | Price 14.93 | Shares 95,208
Buy 12 Sep 2025
Value US$1,008,108.85 | Price 33.72 | Shares 69,195
Buy 12 Sep 2025
Value US$3,747,750.73 | Price 486.69 | Shares 761
Buy 12 Sep 2025
Value US$15,000,000.00 | Price 15.00 | Shares 1,000,000
Buy 12 Sep 2025
Value US$15,000,000.00 | Price 15.00 | Shares 1,000,000
Buy 12 Sep 2025
Value US$11,505.00 | Price 15.00 | Shares 767
Buy 12 Sep 2025
Value US$4,988,490.00 | Price 15.00 | Shares 332,566
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-09 2026-06-09 PrS Proposed sale
PRENSKY ZACHARY

Former Officer

Officer
95,208
14.93
US$3,497,395 		95,208 14.93 US$3,497,395
2025-09-16 2025-09-12 B Purchase
2.3
Deep Track Biotechnology Master Fund, Ltd.
Large shareholder
69,195 +11.7%
33.72
US$1,008,109 		69,195 +11.7% 33.72 US$1,008,109
2025-09-16 2025-09-12 B Purchase
2.3
Deep Track Biotechnology Master Fund, Ltd.
Large shareholder
761 -3.9%
486.69
US$3,747,751 		761 -3.9% 486.69 US$3,747,751
2025-09-16 2025-09-12 B Purchase
0.6
Nussbaum Ran
Non-Executive Director
1,000,000 +242.9%
15.00
US$15,000,000 		1,000,000 +242.9% 15.00 US$15,000,000
2025-09-16 2025-09-12 B Purchase
0.6
Pontifax Management 4 G.P. (2015) Ltd.
Large shareholder
1,000,000 +242.9%
15.00
US$15,000,000 		1,000,000 +242.9% 15.00 US$15,000,000
2025-09-16 2025-09-12 B Purchase
Vida Ventures GP III, L.L.C.
Large shareholder
767 +60.8%
15.00
US$11,505 		767 +60.8% 15.00 US$11,505
2025-09-16 2025-09-12 B Purchase
Vida Ventures GP III, L.L.C.
Large shareholder
332,566 +60.7%
15.00
US$4,988,490 		332,566 +60.7% 15.00 US$4,988,490
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