Mark H. Collin serves as Executive at UNITIL CORP, where they oversee executive responsibilities. Since joining the company, Mark H. Collin has executed 93 insider transactions totaling $0, demonstrating a balanced approach to their equity position. Their most recent transaction on Oct 1, 2025 involved receiving (via award) 2,435 shares valued at $115.0K.
Mark H. Collin currently holds 58,837.16 shares of UNITIL CORP (UTL), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mark H. Collin has been a net neutral trader of UTL stock. They have purchased $0 and sold $0 worth of shares.
Mark H. Collin's most recent insider trade was on Oct 1, 2025, when they sold 2,435 shares at $47.22 per share.
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| $41.79 |
| Discretionary |
| Oct 3, 2022 | UTL | $80.0K | Award | 1,710 | $46.77 | Discretionary |
| Oct 1, 2021 | UTL | $70.0K | Award | 1,600 | $43.75 | Discretionary |
| Oct 1, 2020 | UTL | $70.0K | Award | 1,792 | $39.05 | Discretionary |
| Oct 2, 2019 | UTL | $46.9K | Award | 738 | $63.54 | Discretionary |
| May 30, 2019 | UTL | $167.2K | Discretionary | 2,973.53 | $56.22 | Discretionary |
| Jan 29, 2019 | UTL | $0 | Award | 3,320 | $N/A | Discretionary |
| Sep 4, 2018 | UTL | $559 | Award | 11 | $50.81 | Discretionary |
| Jan 29, 2018 | UTL | $0 | Award | 3,590 | $N/A | Discretionary |
| Jan 30, 2017 | UTL | $0 | Award | 3,360 | $N/A | Discretionary |
| Jan 26, 2016 | UTL | $0 | Award | 4,170 | $N/A | Discretionary |
| Jan 26, 2015 | UTL | $0 | Award | 4,040 | $N/A | Discretionary |
| Jan 31, 2014 | UTL | $0 | Award | 2,700 | $N/A | Discretionary |
| Sep 3, 2013 | UTL | $478 | Award | 17 | $28.10 | Discretionary |
| Feb 4, 2013 | UTL | $0 | Award | 2,030 | $N/A | Discretionary |
| Dec 31, 2012 | UTL | $3.4K | Other | 126.83 | $26.72 | Discretionary |
| Nov 15, 2012 | UTL | $7.1K | Other | 284.97 | $25.01 | Discretionary |
| Aug 15, 2012 | UTL | $7.0K | Other | 260.56 | $27.01 | Discretionary |
| May 15, 2012 | UTL | $6.9K | Other | 270.44 | $25.68 | Discretionary |
| Feb 16, 2012 | UTL | $19.8K | Other | 717 | $27.55 | Discretionary |
| Feb 15, 2012 | UTL | $6.0K | Other | 223.43 | $27.03 | Discretionary |
| Feb 9, 2012 | UTL | $15.6K | Other | 578 | $27.00 | Discretionary |
| Feb 6, 2012 | UTL | $12.4K | Other | 450 | $27.51 | Discretionary |
| Feb 6, 2012 | UTL | $9.0K | Other | 328 | $27.51 | Discretionary |
| Feb 3, 2012 | UTL | $0 | Award | 2,400 | $N/A | Discretionary |
| Nov 15, 2011 | UTL | $6.0K | Other | 221.12 | $26.96 | Discretionary |
| Aug 15, 2011 | UTL | $5.9K | Other | 228.64 | $25.73 | Discretionary |
| May 16, 2011 | UTL | $5.8K | Other | 236.35 | $24.55 | Discretionary |
| Feb 16, 2011 | UTL | $16.3K | Other | 718 | $22.68 | Discretionary |