| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Chief Financial Officer
1 company
Michael Stock is Chief Financial Officer at LBRT. Michael Stock's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $9.8M at current prices.
Our model assigns Michael Stock a middling insider score of 64/100, based on 38 past trades. Over a 12-month horizon, 54.5% of those trades were profitable, with an average 12-month return of -1.8%.
The LBRT filings lean toward selling, a net 1,420,825 shares.
Michael Stock has 67 Form 4 filings on record from January 2018 to November 2026, all as Chief Financial Officer at Liberty Energy (LBRT), 2018–2026.
The 86 reported transactions were 54 open-market sales, 17 stock awards, 9 tax withholdings and 3 dispositions back to the company, plus smaller numbers of other types.
Counted by filing, the open-market trades come to no purchases and 48 sales worth about $22.1M.
The largest open-market sale was 154,000 shares of LBRT at an average $13.01 on September 28, 2021, about $2.0M. Twelve months later LBRT was down 1%.
28 of the 30 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other 2 were not.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Nov 2, 2026 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell10b5-1 | 3,333 | $16.74 | $55,794.42 | -0.4% | - | - | |
| Oct 6, 2026 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell10b5-1 | 3,333 | $20.00 | $66,660.00 | -0.4% | - | - | |
| Oct 1, 2026 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell10b5-1 | 3,333 | $18.17 | $60,560.61 | -0.4% | - | - | |
| Sep 1, 2026 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell10b5-1 | 6,666 | $19.84 | $132,253.44 | -0.9% | - | - | |
| Aug 4, 2026 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell10b5-1 | 6,666 | $18.98 | $126,487.35 | -0.9% | - | - | |
| Jul 1, 2026 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell10b5-1 | 9,999 | $25.89 | $258,874.11 | -1.3% | -24.1% | - | |
| Jun 2, 2026 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell10b5-1 | 16,665 | $29.77 | $496,083.72 | -2.1% | -36.9% | - | |
| May 20, 2026 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell10b5-1 | 19,998 | $33.48 | $669,533.04 | -2.4% | -34.9% | - | |
| Feb 6, 2026 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell | 25,000 | $25.38 | $634,500.00 | -3.1% | +25.6% | - | |
| Apr 2, 2025 | LBRT Liberty Energy Inc. | Chief Financial Officer | Sell10b5-1 | 5,000 | $16.00 | $80,000.00 | -0.7% | -25.8% | +74.8% |