Eric Bjerkholt
CIK 1197350 · View on SEC EDGAR ↗
First SEC filing: June 9, 2026 · Latest: June 9, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 11, 2026 | MIRM | S 10b5-1 | 6,001 | $99.90 | $599,500 | 36,355 Direct | -14.17% | Disposed | 2.6% (price as of 2026-08-19) |
| July 6, 2026 | MIRM | S 10b5-1 | 300 | $124.94 | $37,482 | 42,181 Direct | -0.71% | Disposed | -17.9% (price as of 2026-08-19) |
| July 6, 2026 | MIRM | S 10b5-1 | 528 | $123.84 | $65,388 | 42,481 Direct | -1.23% | Disposed | -17.2% (price as of 2026-08-19) |
| July 6, 2026 | MIRM | S 10b5-1 | 1,048 | $122.43 | $128,307 | 43,009 Direct | -2.38% | Disposed | -16.3% (price as of 2026-08-19) |
| July 6, 2026 | MIRM | S 10b5-1 | 3,124 | $121.67 | $380,097 | 44,057 Direct | -6.62% | Disposed | -15.7% (price as of 2026-08-19) |
| June 9, 2026 | CERS | S | 20,454 | $2.60 | $53,180 | 261,679 Direct | -7.25% | Disposed | 9.8% (price as of 2026-08-19) |
| June 8, 2026 | MIRM | S 10b5-1 | 1,567 | $95.12 | $149,053 | 44,788 Direct | -3.38% | Disposed | 7.8% (price as of 2026-08-19) |
| June 8, 2026 | MIRM | S 10b5-1 | 1,175 | $93.95 | $110,391 | 46,355 Direct | -2.47% | Disposed | 9.1% (price as of 2026-08-19) |
| June 8, 2026 | MIRM | S 10b5-1 | 2,258 | $92.84 | $209,633 | 47,530 Direct | -4.54% | Disposed | 10.4% (price as of 2026-08-19) |
| March 16, 2026 | MIRM | S | 7,287 | $91.98 | $670,258 | 49,788 Direct | -12.77% | Disposed | 11.5% (price as of 2026-08-19) |
| Jan. 26, 2026 | MIRM | S | 1,053 | $96.19 | $101,288 | 43,741 Direct | -2.35% | Disposed | 6.6% (price as of 2026-08-19) |
| Jan. 22, 2026 | MIRM | S | 1,421 | $93.33 | $132,622 | 42,127 Direct | -3.26% | Disposed | 9.8% (price as of 2026-08-19) |
| Dec. 12, 2024 | CERS | S | 20,000 | $1.78 | $35,600 | 162,133 Direct | -10.98% | Disposed | 60.4% (price as of 2026-08-19) |
| Dec. 13, 2023 | CERS | P | 10,000 | $1.62 | $16,200 | 142,133 Direct | +7.57% | Acquired | 76.2% (price as of 2026-08-19) |
| Sept. 11, 2023 | MIRM | P | 10,000 | $29.65 | $296,500 | 10,000 Direct | — | Acquired | 245.8% (price as of 2026-08-19) |
| Aug. 21, 2023 | CERS | P | 10,000 | $1.72 | $17,200 | 132,133 Direct | +8.19% | Acquired | 66.0% (price as of 2026-08-19) |
| May 31, 2023 | CALC | P | 150 | $4.20 | $630 | 3,684 Direct | +4.24% | Acquired | -85.3% (price as of 2026-08-19) |
| May 31, 2023 | CALC | P | 100 | $4.09 | $409 | 3,534 Direct | +2.91% | Acquired | -84.9% (price as of 2026-08-19) |
| May 30, 2023 | CALC | P | 5 | $3.25 | $16 | 3,434 Direct | +0.15% | Acquired | -81.0% (price as of 2026-08-19) |
| May 23, 2023 | CALC | P | 500 | $3.27 | $1,635 | 3,429 Direct | +17.07% | Acquired | -81.2% (price as of 2026-08-19) |
| May 23, 2023 | CERS | P | 5,000 | $2.00 | $10,000 | 82,133 Direct | +6.48% | Acquired | 42.8% (price as of 2026-08-19) |
| May 19, 2023 | CALC | P | 199 | $2.65 | $527 | 2,929 Direct | +7.29% | Acquired | -76.8% (price as of 2026-08-19) |
| May 18, 2023 | CALC | P | 1 | $2.65 | $3 | 2,730 Direct | +0.04% | Acquired | -76.8% (price as of 2026-08-19) |
| May 18, 2023 | CALC | P | 300 | $2.70 | $810 | 2,729 Direct | +12.35% | Acquired | -77.2% (price as of 2026-08-19) |
| May 17, 2023 | CALC | P | 200 | $2.67 | $534 | 2,429 Direct | +8.97% | Acquired | -76.9% (price as of 2026-08-19) |
| May 16, 2023 | CALC | P | 800 | $2.70 | $2,160 | 2,229 Direct | +55.98% | Acquired | -77.2% (price as of 2026-08-19) |
| Jan. 29, 2020 | CERS | P | 20,000 | $4.15 | $83,000 | 24,282 Direct | +467.07% | Acquired | -31.2% (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| June 9, 2026 | MGX | Stock Option (Right to Buy) | Common Stock (21,000) | $1.23 | June 8, 2036 | 21,000 | Acquired |
| June 9, 2026 | MIRM | Employee Stock Option (right to buy) | Common Stock (2,393) | $26.49 | Jan. 22, 2034 | 2,393 | Disposed |
| May 13, 2026 | SRZN | Director Stock Option (right to buy) | Common Stock (5,550) | $30.14 | May 12, 2036 | 5,550 | Acquired |
| March 15, 2026 | MIRM | Performance Restricted Stock Units | Common Stock (13,334) | — | — | 13,334 | Disposed |
| Jan. 28, 2026 | MIRM | Performance Restricted Stock Units | Common Stock (20,000) | — | — | 20,000 | Acquired |
| Jan. 28, 2026 | MIRM | Restricted Stock Units | Common Stock (11,760) | — | — | 11,760 | Acquired |
| Jan. 28, 2026 | MIRM | Stock Option (right to buy) | Common Stock (18,140) | $100.85 | Jan. 27, 2036 | 18,140 | Acquired |
| Jan. 23, 2026 | MIRM | Restricted Stock Units | Common Stock (2,667) | — | — | 2,667 | Disposed |
| Jan. 21, 2026 | MIRM | Restricted Stock Units | Common Stock (3,334) | — | — | 3,334 | Disposed |
| June 10, 2025 | MGX | Stock Option (Right to Buy) | Common Stock (8,572) | $1.57 | June 9, 2035 | 8,572 | Acquired |
| Feb. 3, 2025 | MGX | Stock Option (Right to Buy) | Common Stock (42,000) | $2.51 | Feb. 2, 2035 | 42,000 | Acquired |
| Sept. 11, 2023 | MIRM | Restricted Stock Units | Common Stock (55,000) | — | — | 55,000 | Acquired |
| Sept. 11, 2023 | MIRM | Stock Option (right to buy) | Common Stock (110,000) | $30.43 | Sept. 10, 2033 | 110,000 | Acquired |
| May 8, 2023 | CALC | Director Stock Option (Right to Buy) | Common Stock (20,000) | $3.25 | May 7, 2033 | 20,000 | Acquired |
| March 23, 2023 | CALC | Restricted Stock Unit | Common Stock (1,429) | — | — | 1,429 | Disposed |
| June 2, 2022 | CALC | Restricted Stock Units | Common Stock (20,000) | — | — | 20,000 | Acquired |
| June 2, 2022 | CALC | Stock Option (Right to Buy) | Common Stock (20,000) | $0.98 | June 1, 2032 | 20,000 | Acquired |
| June 1, 2022 | CERS | Option (Right to Buy) | Common Stock (39,866) | $4.84 | May 31, 2032 | 39,866 | Acquired |
| June 2, 2021 | CALC | Employee Stock Option (Right to Buy) | Common Stock (12,500) | $4.07 | June 1, 2031 | 12,500 | Acquired |
| June 2, 2021 | CERS | Option (Right to Buy) | Common Stock (29,983) | $5.62 | June 1, 2031 | 29,983 | Acquired |
| June 1, 2021 | CERS | Restricted Stock Unit | Common Stock (13,228) | — | — | 13,228 | Disposed |
| Oct. 5, 2020 | CERS | Restricted Stock Unit | Common Stock (4,281) | — | — | 4,281 | Disposed |
| Sept. 24, 2020 | CALC | Director Stock Option (Right to Buy) | Common Stock (25,000) | $16.00 | Sept. 23, 2030 | 25,000 | Acquired |
| June 3, 2020 | CERS | Restricted Stock Unit | Common Stock (13,228) | — | — | 13,228 | Acquired |
| June 3, 2020 | CERS | Option (Right to Buy) | Common Stock (28,177) | $6.37 | June 2, 2030 | 28,177 | Acquired |
| Oct. 4, 2019 | CERS | Restricted Stock Unit | Common Stock (4,282) | — | — | 4,282 | Disposed |
| June 5, 2019 | CERS | Restricted Stock Unit | Common Stock (11,184) | — | — | 11,184 | Acquired |
| June 5, 2019 | CERS | Option (Right to Buy) | Common Stock (23,703) | $4.80 | June 4, 2029 | 23,703 | Acquired |
| Oct. 5, 2018 | CERS | Restricted Stock Units | Common Stock (12,844) | — | — | 12,844 | Acquired |
| Oct. 5, 2018 | CERS | Option (Right to Buy) | Common Stock (24,013) | $6.49 | Oct. 4, 2028 | 24,013 | Acquired |
| March 1, 2009 | MBOT | Stock Option (right to buy) | Common Stock | $1.56 | March 1, 2019 | 10,000 | Acquired |
| March 1, 2008 | MBOT | Stock Option (right to buy) | Common Stock | $1.51 | March 1, 2018 | 10,000 | Acquired |
| March 1, 2007 | MBOT | Stock Option (right to buy) | Common Stock | $2.56 | March 1, 2017 | 10,000 | Acquired |
| March 1, 2006 | MBOT | Stock Option (right to buy) | Common Stock | $2.56 | March 1, 2016 | 10,000 | Acquired |
| March 1, 2006 | MBOT | Stock Option (right to buy) | Common Stock | $3.64 | March 1, 2016 | 10,000 | Acquired |
| March 1, 2005 | MBOT | Stock Option (right to buy) | Common Stock | $4.33 | March 1, 2015 | 10,000 | 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.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
MIRM
CFO| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2023 | $151,562 | — | — | — | $95,246 | — | — | $4,337,928 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.