Thomas Riordan insider trades: Versum Materials (VSM) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Thomas reports to the SEC
Open-market buys and sales
19 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Dec 12, 2018 | VSM | ↑ Buy | 6,000 | $29.02 | $174K | Direct | Dec 12, 2018 (0d) |
| Nov 12, 2018 | VSM | ↑ Buy | 4,600 | $32.82 | $151K | Direct | Nov 13, 2018 (1d) |
| Nov 16, 2017 | VSM | ↑ Buy | 2,550 | $38.90 | $99K | Direct | Nov 17, 2017 (1d) |
| May 22, 2017 | VSM | ↑ Buy | 325 | $31.95 | $10K | Personal Retirement Account | May 24, 2017 (2d) |
| Dec 4, 2014 | ROC | ↓ Sell | 46,985 | $79.08 | $3.7M | Direct | Dec 5, 2014 (1d) |
| Jun 30, 2014 | ROC | ↓ Sell10b5-1 | 11,206 | $75.89 | $850K | Direct | Jul 1, 2014 (1d) |
| May 28, 2014 | ROC | ↓ Sell10b5-1 | 10,419 | $76.43 | $796K | Direct | May 30, 2014 (2d) |
| Apr 28, 2014 | ROC | ↓ Sell10b5-1 | 10,000 | $71.22 | $712K | Direct | Apr 29, 2014 (1d) |
| Mar 28, 2014 | ROC | ↓ Sell10b5-1 | 11,599 | $73.98 | $858K | Direct | Apr 1, 2014 (4d) |
| Feb 28, 2014 | ROC | ↓ Sell10b5-1 | 10,853 | $79.47 | $862K | Direct | Mar 4, 2014 (4d) |
| Aug 8, 2013 | ROC | ↓ Sell | 51,624 | $65.50 | $3.4M | Direct | Aug 9, 2013 (1d) |
| Dec 6, 2012 | ROC | ↓ Sell | 6,624 | $46.72 | $309K | Direct | Dec 7, 2012 (1d) |
| Dec 5, 2012 | ROC | ↓ Sell | 27,601 | $46.29 | $1.3M | Direct | Dec 5, 2012 (0d) |
| Mar 13, 2012 | ROC | ↓ Sell | 29,536 | $50.76 | $1.5M | Direct | Mar 15, 2012 (2d) |
| May 18, 2011 | ROC | ↓ Sell10b5-1 | 61,605 | $50.32 | $3.1M | Direct | May 18, 2011 (0d) |
| Jul 29, 2010 | ROC | ↓ Sell10b5-1 | 100,058 | $28.56 | $2.9M | Direct | Jul 30, 2010 (1d) |
| May 10, 2010 | ROC | ↓ Sell | 30,000 | $27.00 | $810K | Direct | May 12, 2010 (2d) |
| Mar 9, 2009 | ROC | ↑ Buy | 1,500 | $3.52 | $5K | Direct | Mar 10, 2009 (1d) |
| Jun 17, 2008 | ROC | ↓ Sell | 30,000 | $38.60 | $1.2M | Direct | Jun 19, 2008 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Thomas Riordan's insider trades
Thomas Riordan is a director at Versum Materials (VSM). Since Jun 17, 2008, Thomas has reported 5 open-market purchases worth $440K and 14 sales worth $22.2M on SEC Form 4. There have been no open-market trades in the last 12 months.
7 sales (45% 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 (30 filings), option exercises (10 filings), shares withheld for taxes (4 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 VSM insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.

