John A DeFord insider trades: Maravai Lifesciences Holdings (MRVI) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where John reports to the SEC





Open-market buys and sales
31 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 12, 2024 | MRVI | ↑ Buy | 17,500 | $5.75 | $101K | Direct | Nov 14, 2024 (2d) |
| Dec 20, 2017 | BCR | ↓ Sell | 14,107 | $333.48 | $4.7M | Direct | Dec 22, 2017 (2d) |
| Feb 14, 2017 | BCR | ↓ Sell | 2,788 | $240.51 | $671K | Direct | Feb 15, 2017 (1d) |
| Feb 13, 2017 | BCR | ↓ Sell | 469 | $240.07 | $113K | Direct | Feb 14, 2017 (1d) |
| Feb 9, 2017 | BCR | ↓ Sell | 5,816 | $239.58 | $1.4M | Direct | Feb 10, 2017 (1d) |
| Dec 12, 2016 | BCR | ↓ Sell | 15,883 | $218.03 | $3.5M | Direct | Dec 13, 2016 (1d) |
| Sep 6, 2016 | BCR | ↓ Sell | 7,928 | $221.06 | $1.8M | Direct | Sep 8, 2016 (2d) |
| Feb 17, 2016 | BCR | ↓ Sell | 661 | $187.44 | $124K | Direct | Feb 18, 2016 (1d) |
| Feb 12, 2016 | BCR | ↓ Sell | 6,400 | $182.40 | $1.2M | Direct | Feb 16, 2016 (4d) |
| Feb 9, 2016 | BCR | ↓ Sell | 3,407 | $180.62 | $615K | Direct | Feb 10, 2016 (1d) |
| Dec 16, 2015 | BCR | ↓ Sell | 4,662 | $190.00 | $886K | Direct | Dec 17, 2015 (1d) |
| Dec 14, 2015 | BCR | ↓ Sell | 5,627 | $184.00 | $1.0M | Direct | Dec 16, 2015 (2d) |
| Aug 4, 2015 | BCR | ↓ Sell | 13,485 | $197.75 | $2.7M | Direct | Aug 6, 2015 (2d) |
| Feb 20, 2015 | BCR | ↓ Sell | 2,987 | $174.85 | $522K | Direct | Feb 24, 2015 (4d) |
| Feb 17, 2015 | BCR | ↓ Sell | 6,146 | $174.58 | $1.1M | Direct | Feb 18, 2015 (1d) |
| Dec 17, 2014 | BCR | ↓ Sell | 2,741 | $168.51 | $462K | Direct | May 11, 2017 (876d) |
| Dec 16, 2014 | BCR | ↓ Sell | 5,626 | $167.47 | $942K | Direct | Dec 17, 2014 (1d) |
| Feb 12, 2014 | BCR | ↓ Sell | 3,141 | $136.41 | $428K | Direct | Feb 14, 2014 (2d) |
| Feb 4, 2014 | BCR | ↓ Sell | 21,616 | $127.52 | $2.8M | Direct | Feb 6, 2014 (2d) |
| Dec 12, 2013 | BCR | ↓ Sell | 2,792 | $133.98 | $374K | Direct | Dec 13, 2013 (1d) |
| Sep 9, 2013 | BCR | ↓ Sell | 28,364 | $117.89 | $3.3M | Direct | Sep 11, 2013 (2d) |
| Jul 26, 2013 | BCR | ↓ Sell | 34,417 | $112.05 | $3.9M | Direct | Jul 30, 2013 (4d) |
| Feb 19, 2013 | BCR | ↓ Sell | 4,206 | $100.21 | $421K | Direct | Feb 21, 2013 (2d) |
| Aug 16, 2012 | BCR | ↓ Sell | 2,043 | $98.32 | $201K | Direct | Aug 20, 2012 (4d) |
| Feb 15, 2012 | BCR | ↓ Sell | 2,130 | $95.27 | $203K | Direct | Feb 16, 2012 (1d) |
| Feb 3, 2012 | BCR | ↓ Sell | 2,494 | $93.28 | $233K | Direct | Feb 7, 2012 (4d) |
| Feb 15, 2011 | BCR | ↓ Sell | 3,934 | $97.72 | $384K | Direct | Feb 16, 2011 (1d) |
| Feb 3, 2011 | BCR | ↓ Sell | 21,425 | $93.08 | $2.0M | Direct | Feb 7, 2011 (4d) |
| Apr 27, 2010 | BCR | ↓ Sell | 2,484 | $85.08 | $211K | Direct | Apr 28, 2010 (1d) |
| Apr 30, 2009 | BCR | ↓ Sell | 2,254 | $71.46 | $161K | Direct | May 1, 2009 (1d) |
| Feb 6, 2008 | BCR | ↓ Sell | 12,500 | $95.01 | $1.2M | Direct | Feb 7, 2008 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MRVI insiders
Open-market trades in the last 12 months
About John A DeFord's insider trades
John A DeFord is a director at Maravai Lifesciences Holdings (MRVI). Since Feb 6, 2008, John has reported 1 open-market purchase worth $101K and 30 sales worth $37.3M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (55 filings), shares withheld for taxes (23 filings), option exercises (12 filings), shares returned to the company (2 filings). 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 MRVI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.