Steven D Cosler insider trades: Guardian Pharmacy Services (GRDN) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Steven reports to the SEC






Open-market buys and sales
10 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Dec 3, 2025 | GRDN | ↑ Buy | 3,370 | $29.61 | $100K | Direct | Dec 5, 2025 (2d) |
| Nov 19, 2024 | GRDN | ↑ Buy | 7,000 | $21.22 | $149K | Direct | Nov 20, 2024 (1d) |
| Sep 27, 2024 | GRDN | ↑ Buy | 7,142 | $14.00 | $100K | Direct | Oct 1, 2024 (4d) |
| Mar 26, 2020 | NNN | ↑ Buy | 411 | $19.70 | $8K | Direct | Mar 27, 2020 (1d) |
| Mar 24, 2020 | NNN | ↑ Buy | 3,265 | $18.71 | $61K | Direct | Mar 25, 2020 (1d) |
| Nov 16, 2012 | SXCI | ↓ Sell | 2,065 | $47.26 | $98K | Direct | Nov 16, 2012 (0d) |
| Feb 29, 2012 | SXCI | ↓ Sell | 2,200 | $71.19 | $157K | Direct | Mar 1, 2012 (1d) |
| Dec 15, 2010 | SXCI | ↓ Sell | 5,000 | $43.68 | $218K | Direct | Dec 15, 2010 (0d) |
| Dec 8, 2010 | SXCI | ↓ Sell | 10,000 | $44.86 | $449K | Direct | Dec 9, 2010 (1d) |
| Aug 30, 2005 | TYW | ↑ Buy | 2,000 | $14.01 | $28K | Direct | Aug 31, 2005 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other GRDN insiders
Open-market trades in the last 12 months
About Steven D Cosler's insider trades
Steven D Cosler is an insider at Guardian Pharmacy Services (GRDN). Since Aug 30, 2005, Steven has reported 6 open-market purchases worth $446K and 4 sales worth $921K on SEC Form 4. In the last 12 months: 1 buy ($100K).
Their filings also include grants and awards (54 filings), option exercises (17 filings), gifts (4 filings), other transactions (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 GRDN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.