Gary A Shiffman insider trades: Sun Communities (SUI) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Gary 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 17, 2025 | SUI | ↓ Sell | 156,875 | $123.53 | $19.4M | Owned by irrevocable trust. | Dec 18, 2025 (1d) |
| Nov 1, 2021 | SUI | ↑ Buy | 362,903 | $194.85 | $70.7M | Direct | Nov 2, 2021 (1d) |
| Jul 28, 2021 | SUI | ↑ Buy | 234,934 | $194.20 | $45.6M | Direct | Aug 5, 2021 (8d) |
| May 25, 2021 | SUI | ↓ Sell | 73,000 | $167.90 | $12.3M | Direct | May 26, 2021 (1d) |
| Dec 4, 2019 | SUI | ↓ Sell | 115,000 | $162.13 | $18.6M | Direct | Dec 5, 2019 (1d) |
| Mar 12, 2019 | SUI | ↓ Sell | 12,859 | $117.84 | $1.5M | Shares held by LLCs | Mar 14, 2019 (2d) |
| Jun 30, 2016 | SUI | ↓ Sell | 34,103 | $75.81 | $2.6M | Direct | Jul 1, 2016 (1d) |
| Jun 30, 2016 | SUI | ↓ Sell | 22,835 | $76.10 | $1.7M | Direct | Jul 1, 2016 (1d) |
| Jun 30, 2016 | SUI | ↓ Sell | 18,642 | $75.67 | $1.4M | Direct | Jul 1, 2016 (1d) |
| Jun 30, 2016 | SUI | ↓ Sell | 18,371 | $76.56 | $1.4M | Direct | Jul 1, 2016 (1d) |
| Jun 29, 2016 | SUI | ↓ Sell | 21,570 | $75.71 | $1.6M | Direct | Jul 1, 2016 (2d) |
| Jan 6, 2010 | SUI | ↓ Sell | 4,610 | $20.38 | $94K | Direct | Jan 7, 2010 (1d) |
| Jan 6, 2010 | SUI | ↓ Sell | 400 | $20.50 | $8K | Direct | Jan 7, 2010 (1d) |
| Jan 5, 2010 | SUI | ↓ Sell | 1,100 | $19.99 | $22K | Direct | Jan 6, 2010 (1d) |
| Jan 4, 2010 | SUI | ↓ Sell | 12,200 | $19.99 | $244K | Direct | Jan 5, 2010 (1d) |
| Dec 31, 2009 | SUI | ↓ Sell | 20,800 | $20.04 | $417K | Direct | Jan 4, 2010 (4d) |
| Dec 30, 2009 | SUI | ↓ Sell | 19,200 | $20.02 | $384K | Direct | Jan 4, 2010 (5d) |
| Dec 29, 2009 | SUI | ↓ Sell | 20,000 | $20.06 | $401K | Direct | Dec 30, 2009 (1d) |
| Dec 28, 2009 | SUI | ↓ Sell | 11,690 | $20.02 | $234K | Direct | Dec 29, 2009 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other SUI insiders
Open-market trades in the last 12 months
About Gary A Shiffman's insider trades
Gary A Shiffman is a director at Sun Communities (SUI). Since Dec 28, 2009, Gary has reported 2 open-market purchases worth $116.3M and 17 sales worth $62.4M on SEC Form 4. In the last 12 months: 1 sale ($19.4M).
Their filings also include shares withheld for taxes (62 filings), grants and awards (21 filings), gifts (12 filings), option exercises (4 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 SUI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.