Jennifer Michaelson
CIK 1838061 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 7, 2021 · Latest: Jan. 7, 2021
On this page
Insider at
Insider transactions
0 buys (P)
17 sells (S)
Net:
$-1,443,270
+ 47 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
47 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 13, 2026 | CGEM | S 10b5-1 | 30,000 | $20.26 | $607,800 | 162,844 Direct | -15.56% | Disposed | 7.4% (price as of 2026-08-20) |
| July 6, 2026 | CGEM | S 10b5-1 | 8,000 | $17.82 | $142,560 | 162,844 Direct | -4.68% | Disposed | 22.1% (price as of 2026-08-20) |
| May 5, 2026 | CGEM | S 10b5-1 | 200 | $15.58 | $3,116 | 166,844 Direct | -0.12% | Disposed | 39.7% (price as of 2026-08-20) |
| May 5, 2026 | CGEM | S 10b5-1 | 7,800 | $14.60 | $113,880 | 167,044 Direct | -4.46% | Disposed | 49.1% (price as of 2026-08-20) |
| March 5, 2026 | CGEM | S 10b5-1 | 8,000 | $15.68 | $125,440 | 170,844 Direct | -4.47% | Disposed | 38.8% (price as of 2026-08-20) |
| Feb. 25, 2026 | CGEM | S 10b5-1 | 1,780 | $14.14 | $25,169 | 174,844 Direct | -1.01% | Disposed | 53.9% (price as of 2026-08-20) |
| Feb. 24, 2026 | CGEM | S | 3,601 | $14.47 | $52,106 | 176,624 Direct | -2.00% | Disposed | 50.4% (price as of 2026-08-20) |
| Feb. 23, 2026 | CGEM | S 10b5-1 | 1,752 | $13.99 | $24,510 | 180,225 Direct | -0.96% | Disposed | 55.6% (price as of 2026-08-20) |
| Feb. 20, 2026 | CGEM | S 10b5-1 | 8,000 | $14.30 | $114,400 | 181,977 Direct | -4.21% | Disposed | 52.2% (price as of 2026-08-20) |
| Feb. 20, 2026 | CGEM | S | 3,742 | $13.62 | $50,966 | 181,977 Direct | -2.01% | Disposed | 59.8% (price as of 2026-08-20) |
| Feb. 12, 2026 | CGEM | S | 416 | $12.03 | $5,004 | 128,219 Direct | -0.32% | Disposed | 80.9% (price as of 2026-08-20) |
| Jan. 22, 2026 | CGEM | S 10b5-1 | 4,000 | $12.30 | $49,200 | 128,635 Direct | -3.02% | Disposed | 77.0% (price as of 2026-08-20) |
| Dec. 19, 2025 | CGEM | S 10b5-1 | 1,345 | $10.01 | $13,463 | 132,635 Direct | -1.00% | Disposed | 117.4% (price as of 2026-08-20) |
| Dec. 18, 2025 | CGEM | S | 2,898 | $9.67 | $28,024 | 133,980 Direct | -2.12% | Disposed | 125.1% (price as of 2026-08-20) |
| Dec. 15, 2025 | CGEM | S 10b5-1 | 995 | $11.90 | $11,840 | 136,878 Direct | -0.72% | Disposed | 82.9% (price as of 2026-08-20) |
| Dec. 12, 2025 | CGEM | S | 2,148 | $12.38 | $26,592 | 137,873 Direct | -1.53% | Disposed | 75.8% (price as of 2026-08-20) |
| Nov. 24, 2025 | CGEM | S 10b5-1 | 4,000 | $12.30 | $49,200 | 138,004 Direct | -2.82% | Disposed | 77.0% (price as of 2026-08-20) |
| Feb. 25, 2025 | CGEM | S | 3,756 | $8.53 | $32,039 | 142,004 Direct | -2.58% | Disposed | 155.2% (price as of 2026-08-20) |
| Jan. 6, 2025 | CGEM | S 10b5-1 | 4,000 | $12.51 | $50,040 | 95,760 Direct | -4.01% | Disposed | 74.0% (price as of 2026-08-20) |
| Dec. 18, 2024 | CGEM | S | 4,693 | $11.41 | $53,547 | 99,760 Direct | -4.49% | Disposed | 90.8% (price as of 2026-08-20) |
| Dec. 12, 2024 | CGEM | S | 3,489 | $12.52 | $43,682 | 104,453 Direct | -3.23% | Disposed | 73.8% (price as of 2026-08-20) |
| Nov. 5, 2024 | CGEM | S 10b5-1 | 8,000 | $15.64 | $125,120 | 107,942 Direct | -6.90% | Disposed | 39.2% (price as of 2026-08-20) |
| Sept. 5, 2024 | CGEM | S 10b5-1 | 8,000 | $18.09 | $144,720 | 115,942 Direct | -6.45% | Disposed | 20.3% (price as of 2026-08-20) |
| July 5, 2024 | CGEM | S 10b5-1 | 8,000 | $16.33 | $130,640 | 123,942 Direct | -6.06% | Disposed | 33.3% (price as of 2026-08-20) |
| May 7, 2024 | CGEM | S 10b5-1 | 5,606 | $30.06 | $168,516 | 129,582 Direct | -4.15% | Disposed | -27.6% (price as of 2026-08-20) |
| May 6, 2024 | CGEM | S 10b5-1 | 20,277 | $28.54 | $578,706 | 129,582 Direct | -13.53% | Disposed | -23.7% (price as of 2026-08-20) |
| May 6, 2024 | CGEM | S 10b5-1 | 37,723 | $27.82 | $1,049,454 | 149,859 Direct | -20.11% | Disposed | -21.8% (price as of 2026-08-20) |
| Dec. 21, 2023 | CGEM | S | 1,145 | $8.50 | $9,732 | 87,582 Direct | -1.29% | Disposed | 156.1% (price as of 2026-08-20) |
| Dec. 18, 2023 | CGEM | S | 238 | $8.22 | $1,956 | 88,727 Direct | -0.27% | Disposed | 164.8% (price as of 2026-08-20) |
| Dec. 12, 2023 | CGEM | S | 1,068 | $7.81 | $8,341 | 88,965 Direct | -1.19% | Disposed | 178.7% (price as of 2026-08-20) |
| June 20, 2023 | CGEM | S | 238 | $12.94 | $3,080 | 90,033 Direct | -0.26% | Disposed | 68.2% (price as of 2026-08-20) |
| June 12, 2023 | CGEM | S | 176 | $13.11 | $2,307 | 90,271 Direct | -0.19% | Disposed | 66.0% (price as of 2026-08-20) |
| June 7, 2023 | CGEM | S 10b5-1 | 100 | $12.40 | $1,240 | 90,447 Direct | -0.11% | Disposed | 75.5% (price as of 2026-08-20) |
| June 6, 2023 | CGEM | S 10b5-1 | 11,900 | $12.31 | $146,489 | 90,447 Direct | -11.63% | Disposed | 76.8% (price as of 2026-08-20) |
| May 18, 2023 | CGEM | S | 239 | $8.76 | $2,094 | 90,447 Direct | -0.26% | Disposed | 148.5% (price as of 2026-08-20) |
| May 12, 2023 | CGEM | S | 193 | $8.78 | $1,695 | 90,686 Direct | -0.21% | Disposed | 147.9% (price as of 2026-08-20) |
| April 18, 2023 | CGEM | S | 238 | $10.71 | $2,549 | 90,879 Direct | -0.26% | Disposed | 103.2% (price as of 2026-08-20) |
| April 12, 2023 | CGEM | S | 176 | $10.22 | $1,799 | 91,117 Direct | -0.19% | Disposed | 113.0% (price as of 2026-08-20) |
| March 20, 2023 | CGEM | S | 238 | $11.32 | $2,694 | 91,293 Direct | -0.26% | Disposed | 92.3% (price as of 2026-08-20) |
| Nov. 25, 2022 | CGEM | S 10b5-1 | 4,000 | $13.30 | $53,200 | 53,031 Direct | -7.01% | Disposed | 63.6% (price as of 2026-08-20) |
| Sept. 27, 2022 | CGEM | S 10b5-1 | 4,000 | $12.40 | $49,600 | 53,031 Direct | -7.01% | Disposed | 75.5% (price as of 2026-08-20) |
| Aug. 8, 2022 | CGEM | S 10b5-1 | 1,385 | $15.01 | $20,789 | 53,031 Direct | -2.55% | Disposed | 45.0% (price as of 2026-08-20) |
| July 25, 2022 | CGEM | S 10b5-1 | 8,000 | $14.51 | $116,080 | 53,031 Direct | -13.11% | Disposed | 50.0% (price as of 2026-08-20) |
| Oct. 18, 2021 | CGEM | S 10b5-1 | 400 | $23.61 | $9,444 | 22,911 Direct | -1.72% | Disposed | -7.8% (price as of 2026-08-20) |
| Oct. 18, 2021 | CGEM | S 10b5-1 | 204 | $22.40 | $4,570 | 23,311 Direct | -0.87% | Disposed | -2.8% (price as of 2026-08-20) |
| Oct. 18, 2021 | CGEM | S 10b5-1 | 3,396 | $21.10 | $71,656 | 23,515 Direct | -12.62% | Disposed | 3.2% (price as of 2026-08-20) |
| Sept. 20, 2021 | CGEM | S 10b5-1 | 800 | $25.20 | $20,160 | 22,911 Direct | -3.37% | Disposed | -13.6% (price as of 2026-08-20) |
| Sept. 20, 2021 | CGEM | S 10b5-1 | 3,200 | $24.34 | $77,888 | 23,711 Direct | -11.89% | Disposed | -10.6% (price as of 2026-08-20) |
| Aug. 18, 2021 | CGEM | S 10b5-1 | 1,137 | $28.07 | $31,916 | 22,911 Direct | -4.73% | Disposed | -22.5% (price as of 2026-08-20) |
| Aug. 18, 2021 | CGEM | S 10b5-1 | 2,863 | $27.50 | $78,732 | 24,048 Direct | -10.64% | Disposed | -20.9% (price as of 2026-08-20) |
| Aug. 18, 2021 | CGEM | S | 1,137 | $28.07 | $31,916 | 22,911 Direct | -4.73% | Disposed | -22.5% (price as of 2026-08-20) |
| Aug. 18, 2021 | CGEM | S | 2,863 | $27.50 | $78,732 | 24,048 Direct | -10.64% | Disposed | -20.9% (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Aug. 13, 2026 | CGEM | Stock Option (Right to Buy) | Common Stock (30,000) | $4.30 | Oct. 28, 2030 | 30,000 | Disposed |
| July 6, 2026 | CGEM | Stock Option (Right to Buy) | Common Stock (4,000) | $4.30 | Oct. 28, 2030 | 4,000 | Disposed |
| May 5, 2026 | CGEM | Stock Option (Right to Buy) | Common Stock (4,000) | $4.30 | Oct. 28, 2030 | 4,000 | Disposed |
| March 5, 2026 | CGEM | Stock Option (Right to Buy) | Common Stock (4,000) | $4.30 | Oct. 28, 2030 | 4,000 | Disposed |
| Feb. 20, 2026 | CGEM | Stock Option (Right to Buy) | Common Stock (8,000) | $4.30 | Oct. 28, 2030 | 8,000 | Disposed |
| Feb. 18, 2026 | CGEM | Stock Option (Right to Buy) | Common Stock (115,000) | $12.44 | Feb. 18, 2036 | 115,000 | Acquired |
| Feb. 19, 2025 | CGEM | Stock Option (Right to Buy) | Common Stock (100,000) | $9.43 | Feb. 19, 2035 | 100,000 | Acquired |
| May 7, 2024 | CGEM | Stock Option (Right to Buy) | Common Stock (5,606) | $4.30 | Oct. 28, 2030 | 5,606 | Disposed |
| May 6, 2024 | CGEM | Stock Option (Right to Buy) | Common Stock (50,000) | $4.30 | Oct. 28, 2030 | 50,000 | Disposed |
| Feb. 22, 2024 | CGEM | Stock Option (Right to Buy) | Common Stock (100,000) | $17.54 | Feb. 22, 2034 | 100,000 | Acquired |
| June 7, 2023 | CGEM | Stock Option (Right to Buy) | Common Stock (100) | $4.30 | Oct. 28, 2030 | 100 | Disposed |
| June 6, 2023 | CGEM | Stock Option (Right to Buy) | Common Stock (11,900) | $4.30 | Oct. 28, 2030 | 11,900 | Disposed |
| Feb. 17, 2023 | CGEM | Stock Option (Right to Buy) | Common Stock (77,000) | $11.34 | Feb. 16, 2033 | 77,000 | Acquired |
| Nov. 25, 2022 | CGEM | Stock Option (Right to Buy) | Common Stock (4,000) | $4.30 | Oct. 28, 2030 | 4,000 | Disposed |
| Sept. 27, 2022 | CGEM | Stock Option (Right to Buy) | Common Stock (4,000) | $4.30 | Oct. 28, 2030 | 4,000 | Disposed |
| Aug. 8, 2022 | CGEM | Stock Option (Right to Buy) | Common Stock (1,385) | $4.30 | Oct. 28, 2030 | 1,385 | Disposed |
| July 25, 2022 | CGEM | Stock Option (Right to Buy) | Common Stock (8,000) | $4.30 | Oct. 28, 2030 | 8,000 | Disposed |
| Feb. 11, 2022 | CGEM | Stock Option (Right to Buy) | Common Stock (57,000) | $13.60 | Feb. 10, 2032 | 57,000 | Acquired |
| Oct. 18, 2021 | CGEM | Stock Option (Right to Buy) | Common Stock (4,000) | $4.30 | Oct. 28, 2030 | 4,000 | Disposed |
| Sept. 20, 2021 | CGEM | Stock Option (Right to Buy) | Common Stock (4,000) | $4.30 | Oct. 28, 2030 | 4,000 | Disposed |
| Aug. 18, 2021 | CGEM | Stock Option (Right to Buy) | Common Stock (4,000) | $4.30 | Oct. 28, 2030 | 4,000 | Disposed |
| Aug. 18, 2021 | CGEM | Stock Option (Right to Buy) | Common Stock (4,000) | $4.30 | Oct. 28, 2030 | 4,000 | Disposed |
| Jan. 7, 2021 | CGEM | Stock Option (Right to Buy) | Common Stock (79,999) | $21.00 | Jan. 6, 2031 | 79,999 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.