David Kroin insider trades: Lb Pharmaceuticals (LBRX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where David reports to the SEC
and 6 more companies
Open-market buys and sales
63 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 12, 2025 | LBRX | ↑ Buy | 2,000,000 | $15.00 | $30.0M | Direct | Sep 16, 2025 (4d) |
| Sep 12, 2025 | LBRX | ↑ Buy | 666,666 | $15.00 | $10.0M | By Deep Track Special Opportunities Fund | Sep 16, 2025 (4d) |
| Aug 22, 2025 | DVAX | ↓ Sell | 2,065,137 | $10.82 | $22.4M | Direct | Aug 22, 2025 (0d) |
| May 10, 2024 | NKTR | ↓ Sell | 56,000 | $1.78 | $100K | Indirect | May 13, 2024 (3d) |
| Jun 21, 2017 | ADMS | ↓ Sell | 380,000 | $17.08 | $6.5M | Investment Mgr. | Jun 21, 2017 (0d) |
| Dec 17, 2014 | CNXR | ↓ Sell | 395,886 | $8.00 | $3.2M | By GPP-Connecture LLC | Dec 17, 2014 (0d) |
| Feb 10, 2011 | INFU | ↓ Sell | 2,070,000 | $2.26 | $4.7M | By Biomedical Offshore Value Fund, Ltd. | Feb 10, 2011 (0d) |
| Feb 10, 2011 | INFU | ↓ Sell | 1,984,542 | $2.26 | $4.5M | By Biomedical Value Fund, L.P. | Feb 10, 2011 (0d) |
| Feb 10, 2011 | INFU | ↓ Sell | 445,458 | $2.26 | $1.0M | By Biomedical Institutional Value Fund, | Feb 10, 2011 (0d) |
| Jan 14, 2010 | BIOD | ↓ Sell10b5-1 | 83,245 | $5.07 | $422K | Direct | Jan 15, 2010 (1d) |
| Jan 12, 2010 | BIOD | ↓ Sell10b5-1 | 69,210 | $5.03 | $348K | Direct | Jan 13, 2010 (1d) |
| Dec 31, 2009 | BIOD | ↓ Sell10b5-1 | 78,890 | $5.06 | $399K | Direct | Jan 5, 2010 (5d) |
| Oct 21, 2009 | BIOD | ↓ Sell10b5-1 | 1,300 | $5.00 | $7K | Direct | Oct 23, 2009 (2d) |
| Oct 19, 2009 | BIOD | ↓ Sell10b5-1 | 3,267 | $5.02 | $16K | Direct | Oct 21, 2009 (2d) |
| Oct 16, 2009 | BIOD | ↓ Sell10b5-1 | 14,600 | $5.06 | $74K | Direct | Oct 19, 2009 (3d) |
| Oct 14, 2009 | BIOD | ↓ Sell10b5-1 | 16,900 | $5.22 | $88K | Direct | Oct 15, 2009 (1d) |
| Oct 12, 2009 | BIOD | ↓ Sell10b5-1 | 13,463 | $5.19 | $70K | Direct | Oct 13, 2009 (1d) |
| Oct 8, 2009 | BIOD | ↓ Sell10b5-1 | 26,013 | $5.18 | $135K | Direct | Oct 9, 2009 (1d) |
| Oct 6, 2009 | BIOD | ↓ Sell10b5-1 | 15,919 | $5.23 | $83K | Direct | Oct 7, 2009 (1d) |
| Sep 23, 2009 | BIOD | ↓ Sell10b5-1 | 9,795 | $5.20 | $51K | Direct | Sep 24, 2009 (1d) |
| Sep 21, 2009 | BIOD | ↓ Sell10b5-1 | 14,135 | $5.22 | $74K | Direct | Sep 22, 2009 (1d) |
| Sep 17, 2009 | BIOD | ↓ Sell10b5-1 | 10,667 | $5.20 | $55K | Direct | Sep 18, 2009 (1d) |
| Sep 15, 2009 | BIOD | ↓ Sell10b5-1 | 26,900 | $5.26 | $142K | Direct | Sep 16, 2009 (1d) |
| Sep 11, 2009 | BIOD | ↓ Sell10b5-1 | 8,600 | $5.19 | $45K | Direct | Sep 14, 2009 (3d) |
| Sep 9, 2009 | BIOD | ↓ Sell10b5-1 | 4,503 | $5.13 | $23K | Direct | Sep 10, 2009 (1d) |
| Sep 4, 2009 | BIOD | ↓ Sell10b5-1 | 6,300 | $5.03 | $32K | Direct | Sep 8, 2009 (4d) |
| Sep 1, 2009 | BIOD | ↓ Sell10b5-1 | 2,023 | $5.05 | $10K | Direct | Sep 3, 2009 (2d) |
| Aug 31, 2009 | BIOD | ↓ Sell10b5-1 | 3,900 | $5.04 | $20K | Direct | Sep 1, 2009 (1d) |
| Aug 27, 2009 | BIODEL | ↓ Sell10b5-1 | 5,900 | $5.14 | $30K | Direct | Aug 28, 2009 (1d) |
| Aug 25, 2009 | BIOD | ↓ Sell10b5-1 | 14,600 | $5.22 | $76K | Direct | Aug 26, 2009 (1d) |
| Aug 21, 2009 | BIOD | ↓ Sell10b5-1 | 8,100 | $5.03 | $41K | Direct | Aug 24, 2009 (3d) |
| Aug 19, 2009 | BIOD | ↓ Sell10b5-1 | 6,500 | $5.00 | $33K | Direct | Aug 20, 2009 (1d) |
| Aug 17, 2009 | BIODEL | ↓ Sell10b5-1 | 5,419 | $5.02 | $27K | Direct | Aug 18, 2009 (1d) |
| Aug 12, 2009 | BIODEL | ↓ Sell10b5-1 | 1,099 | $5.00 | $5K | Direct | Aug 14, 2009 (2d) |
| Aug 11, 2009 | BIOD | ↓ Sell10b5-1 | 4,400 | $5.03 | $22K | Direct | Aug 12, 2009 (1d) |
| Aug 7, 2009 | BIODEL | ↓ Sell | 7,679 | $5.06 | $39K | Direct | Aug 10, 2009 (3d) |
| Aug 5, 2009 | BIOD | ↓ Sell10b5-1 | 7,700 | $5.01 | $39K | Direct | Aug 6, 2009 (1d) |
| Aug 3, 2009 | BIOD | ↓ Sell10b5-1 | 1,700 | $5.03 | $9K | Direct | Aug 4, 2009 (1d) |
| Jul 30, 2009 | BIOD | ↓ Sell10b5-1 | 13,700 | $5.06 | $69K | Direct | Jul 31, 2009 (1d) |
| Jul 28, 2009 | BIOD | ↓ Sell10b5-1 | 12,400 | $5.20 | $64K | Direct | Jul 29, 2009 (1d) |
| Jul 24, 2009 | BIOD | ↓ Sell10b5-1 | 78,955 | $5.22 | $412K | Direct | Jul 27, 2009 (3d) |
| Jul 22, 2009 | BIOD | ↓ Sell10b5-1 | 50,830 | $5.23 | $266K | Direct | Jul 23, 2009 (1d) |
| Jul 20, 2009 | BIOD | ↓ Sell10b5-1 | 7,284 | $5.05 | $37K | Direct | Jul 21, 2009 (1d) |
| Jul 16, 2009 | BIOD | ↓ Sell10b5-1 | 9,237 | $5.00 | $46K | Direct | Jul 17, 2009 (1d) |
| Jul 13, 2009 | BIOD | ↓ Sell10b5-1 | 700 | $5.00 | $4K | Direct | Jul 15, 2009 (2d) |
| Jul 8, 2009 | BIOD | ↓ Sell10b5-1 | 400 | $5.02 | $2K | Direct | Jul 10, 2009 (2d) |
| Jul 7, 2009 | BIOD | ↓ Sell10b5-1 | 7,700 | $5.03 | $39K | Direct | Jul 8, 2009 (1d) |
| Jul 1, 2009 | BIOD | ↓ Sell10b5-1 | 16,000 | $5.07 | $81K | Direct | Jul 2, 2009 (1d) |
| Jun 30, 2009 | BIOD | ↓ Sell10b5-1 | 15,860 | $5.26 | $83K | Direct | Jul 2, 2009 (2d) |
| Jun 29, 2009 | BIOD | ↓ Sell10b5-1 | 44,200 | $5.25 | $232K | Direct | Jun 30, 2009 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About David Kroin's insider trades
David Kroin is an insider at Lb Pharmaceuticals (LBRX). Since Nov 5, 2007, David has reported 3 open-market purchases worth $41.1M and 60 sales worth $52.3M on SEC Form 4. There have been no open-market trades in the last 12 months.
41 sales (7% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include conversions (4 filings), other transactions (4 filings), grants and awards (3 filings), gifts (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every LBRX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.