John Earl Jackson

Companies

• NATURAL GAS SERVICES GROUP INCBoard member Jun 11, 2026 to now¹
• Main Street Capital CorpBoard member Aug 8, 2013 to now²
• CSI Compressco LPBoard member Feb 5, 2021 to Apr 1, 2024³
• CSI Compressco LPChief executive officer Feb 5, 2021 to Apr 1, 2024³
• Archrock, Inc.Board member Aug 22, 2007 to Mar 1, 2010⁴

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Main Street Capital Corp MAIN87,864 shares⁵$4.8M at $54.27Aug 14, 2026
• NGNATURAL GAS SERVICES GROUP INC NGS0 shares⁶Jun 11, 2026
• CCCSI Compressco LP0 shares⁷Apr 1, 2024

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 14, 2026Other 9 shares at $59.13 of Main Street Capital Corp⁵
• Aug 14, 2026Other 226 shares at $58.80 of Main Street Capital Corp⁵
• Aug 14, 2026Other 88 shares at $59.23 of Main Street Capital Corp⁵
• Jul 15, 2026Other 10 shares at $53.47 of Main Street Capital Corp⁸
• Jul 15, 2026Other 247 shares at $53.41 of Main Street Capital Corp⁸
• Jul 15, 2026Other 97 shares at $53.09 of Main Street Capital Corp⁸
• Jun 29, 2026Other 288 shares at $51.56 of Main Street Capital Corp⁸
• Jun 29, 2026Other 114 shares at $51.01 of Main Street Capital Corp⁸
• Jun 15, 2026Other 10 shares at $52.18 of Main Street Capital Corp⁸
• Jun 15, 2026Other 250 shares at $51.29 of Main Street Capital Corp⁸
• Jun 15, 2026Other 96 shares at $52.02 of Main Street Capital Corp⁸
• May 15, 2026Other 10 shares at $50.49 of Main Street Capital Corp⁹
• May 15, 2026Other 253 shares at $50.45 of Main Street Capital Corp⁹
• May 15, 2026Other 98 shares at $50.69 of Main Street Capital Corp⁹
• May 4, 2026Granted 1,345 shares at $55.76 of Main Street Capital Corp¹⁰
• May 4, 2026Granted 538 shares of Main Street Capital Corp¹⁰
• Apr 15, 2026Other 9 shares at $57.38 of Main Street Capital Corp¹⁰
• Apr 15, 2026Other 213 shares at $57.83 of Main Street Capital Corp¹⁰
• Apr 15, 2026Other 85 shares at $56.39 of Main Street Capital Corp¹⁰
• Mar 27, 2026Other 275 shares at $51.53 of Main Street Capital Corp¹¹
• Mar 27, 2026Other 104 shares at $52.92 of Main Street Capital Corp¹¹
• Mar 13, 2026Other 9 shares at $55.08 of Main Street Capital Corp¹¹
• Mar 13, 2026Other 222 shares at $54.89 of Main Street Capital Corp¹¹
• Mar 13, 2026Other 87 shares at $54.66 of Main Street Capital Corp¹¹
• Feb 13, 2026Other 8 shares at $59.98 of Main Street Capital Corp¹²