Keith Katkin insider trades: Emergent BioSolutions (EBS) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Keith reports to the SEC
and 3 more companies
Open-market buys and sales
29 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 30, 2026 | EBS | ↓ Sell10b5-1 | 15,481 | $8.28 | $128K | Direct | May 4, 2026 (4d) |
| May 23, 2025 | EBS | ↓ Sell10b5-1 | 7,844 | $6.30 | $49K | Direct | May 28, 2025 (5d) |
| May 19, 2025 | SNDX | ↑ Buy | 10,000 | $9.11 | $91K | Direct | May 19, 2025 (0d) |
| Oct 6, 2022 | SNDX | ↓ Sell | 29,899 | $25.90 | $774K | Direct | Oct 7, 2022 (1d) |
| Oct 4, 2022 | SNDX | ↓ Sell | 4,101 | $25.06 | $103K | Direct | Oct 4, 2022 (0d) |
| Dec 9, 2019 | UROV | ↓ Sell10b5-1 | 120,000 | $12.78 | $1.5M | Direct | Dec 11, 2019 (2d) |
| Dec 17, 2014 | AVNR | ↓ Sell | 277,680 | $16.95 | $4.7M | Direct | Dec 18, 2014 (1d) |
| Oct 24, 2014 | AVNR | ↓ Sell | 27,567 | $11.76 | $324K | Direct | Oct 24, 2014 (0d) |
| Aug 1, 2014 | AVNR | ↓ Sell | 9,670 | $5.26 | $51K | Direct | Aug 1, 2014 (0d) |
| May 28, 2014 | AVNR | ↓ Sell | 442,212 | $5.01 | $2.2M | Direct | May 30, 2014 (2d) |
| Dec 18, 2013 | AVNR | ↓ Sell | 29,515 | $2.67 | $79K | Direct | Dec 20, 2013 (2d) |
| Nov 1, 2013 | AVNR | ↓ Sell | 4,385 | $4.14 | $18K | Direct | Nov 5, 2013 (4d) |
| Aug 2, 2013 | AVNR | ↓ Sell | 15,500 | $4.84 | $75K | Direct | Aug 2, 2013 (0d) |
| May 15, 2013 | AVNR | ↓ Sell | 250,438 | $3.26 | $816K | Direct | May 17, 2013 (2d) |
| Dec 3, 2012 | AVNR | ↓ Sell | 18,250 | $2.55 | $46K | Direct | Dec 5, 2012 (2d) |
| Jun 25, 2012 | AVNR | ↓ Sell10b5-1 | 190,125 | $3.50 | $665K | Direct | Jun 27, 2012 (2d) |
| Mar 6, 2012 | AVNR | ↑ Buy | 10,000 | $2.61 | $26K | Direct | Mar 7, 2012 (1d) |
| Dec 2, 2011 | AVNR | ↓ Sell | 17,495 | $2.37 | $41K | Direct | Dec 6, 2011 (4d) |
| Nov 17, 2011 | AVNR | ↓ Sell | 218,025 | $2.59 | $565K | Direct | Nov 18, 2011 (1d) |
| Dec 2, 2010 | AVNR | ↓ Sell | 195,300 | $4.08 | $797K | Direct | Dec 3, 2010 (1d) |
| Nov 1, 2010 | AVNR | ↓ Sell | 20,000 | $5.70 | $114K | Direct | Nov 2, 2010 (1d) |
| Sep 1, 2010 | AVNR | ↓ Sell | 102,874 | $2.84 | $292K | Direct | Sep 2, 2010 (1d) |
| May 3, 2010 | AVNR | ↓ Sell | 105,906 | $3.15 | $334K | Direct | May 4, 2010 (1d) |
| Apr 8, 2010 | AVNR | ↓ Sell | 10,000 | $3.01 | $30K | Direct | Apr 9, 2010 (1d) |
| Mar 29, 2010 | AVNR | ↓ Sell | 30,000 | $2.60 | $78K | Direct | Mar 31, 2010 (2d) |
| Jan 5, 2010 | AVNR | ↓ Sell | 35,025 | $1.92 | $67K | Direct | Jan 5, 2010 (0d) |
| Dec 15, 2009 | AVNR | ↓ Sell | 37,335 | $1.82 | $68K | Direct | Dec 16, 2009 (1d) |
| Feb 24, 2009 | AVNR | ↑ Buy | 15,000 | $0.44 | $7K | Direct | Feb 25, 2009 (1d) |
| May 25, 2006 | AVNR | ↑ Buy | 2,500 | $8.99 | $22K | Direct | May 25, 2006 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other EBS insiders
Open-market trades in the last 12 months
About Keith Katkin's insider trades
Keith Katkin is a director at Emergent BioSolutions (EBS). Since May 25, 2006, Keith has reported 4 open-market purchases worth $146K and 25 sales worth $14.0M on SEC Form 4. In the last 12 months: 1 sale ($128K).
4 sales (17% 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 grants and awards (50 filings), shares withheld for taxes (12 filings), option exercises (10 filings), other transactions (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 EBS insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.