Michael G Erickson
Insider
First SEC filing: Aug. 14, 2025 · Latest: March 3, 2026
Insider at
Insider transactions
0 buys (P)
6 sells (S)
Net: $-3,369,669
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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 19, 2026 | IDXX | M | 183 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 19, 2026 | IDXX | M | 197 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 19, 2026 | IDXX | M | 483 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 19, 2026 | IDXX | M | 817 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 19, 2026 | IDXX | M | 719 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 19, 2026 | IDXX | M | 197 | $505.53 | $99,589 | 15,092 Direct | +1.32% | Acquired | 2.5% (price as of 2026-10-02) |
| Feb. 19, 2026 | IDXX | M | 183 | $544.08 | $99,567 | 14,895 Direct | +1.24% | Acquired | -4.7% (price as of 2026-10-02) |
| Feb. 19, 2026 | IDXX | M | 483 | $206.94 | $99,952 | 14,712 Direct | +3.39% | Acquired | 150.5% (price as of 2026-10-02) |
| Feb. 19, 2026 | IDXX | M | 817 | $178.26 | $145,638 | 14,229 Direct | +6.09% | Acquired | 190.8% (price as of 2026-10-02) |
| Feb. 19, 2026 | IDXX | M | 719 | $141.60 | $101,810 | 13,412 Direct | +5.66% | Acquired | 266.1% (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | M | 4,180 | $178.26 | $745,127 | 18,064 Direct | +30.11% | Acquired | 190.8% (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | S | 456 | $623.76 | $284,435 | 17,608 Direct | -2.52% | Disposed | -16.9% (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | S | 204 | $625.24 | $127,549 | 17,404 Direct | -1.16% | Disposed | -17.1% (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | S | 689 | $629.09 | $433,443 | 12,733 Direct | -5.13% | Disposed | -17.6% (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | M | 4,180 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | M | 1,191 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | S | 40 | $629.86 | $25,194 | 12,693 Direct | -0.31% | Disposed | -17.7% (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | S | 2,694 | $628.22 | $1,692,425 | 13,422 Direct | -16.72% | Disposed | -17.5% (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | S | 1,288 | $626.26 | $806,623 | 16,116 Direct | -7.40% | Disposed | -17.2% (price as of 2026-10-02) |
| Feb. 17, 2026 | IDXX | M | 1,191 | $141.60 | $168,646 | 13,884 Direct | +9.38% | Acquired | 266.1% (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 1,508 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 184 | · | · | 550 Direct | -25.07% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 301 | · | · | 602 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 94 | · | · | 94 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 92 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 184 | · | · | 550 Direct | -25.07% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | F | 974 | $629.35 | $612,987 | 12,693 Direct | -7.13% | Disposed | -17.6% (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 184 | · | · | 13,667 Direct | +1.36% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 1,508 | · | · | 13,483 Direct | +12.59% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 184 | · | · | 11,975 Direct | +1.56% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 301 | · | · | 11,791 Direct | +2.62% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 94 | · | · | 11,490 Direct | +0.82% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2026 | IDXX | M | 92 | · | · | 11,396 Direct | +0.81% | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2026 | IDXX | A | 162 | · | · | 162 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2026 | IDXX | A | 13,667 | · | · | 13,667 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2026 | IDXX | A | 1,580 | · | · | 1,580 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2026 | IDXX | A | 4,739 | · | · | 4,739 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 12, 2025 | IDXX | S | 88 | $649.85 | $57,187 | 11,287 Direct | -0.77% | Disposed | -20.2% (price as of 2026-10-02) |
| Aug. 12, 2025 | IDXX | S | 318 | $649.99 | $206,697 | 11,375 Direct | -2.72% | Disposed | -20.2% (price as of 2026-10-02) |
| Feb. 14, 2025 | IDXX | M | 301 | · | · | 903 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2025 | IDXX | M | 94 | · | · | 188 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2025 | IDXX | M | 93 | · | · | 92 Direct | -50.27% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2025 | IDXX | M | 69 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2025 | IDXX | F | 177 | $444.53 | $78,682 | 21,216 Direct | -0.83% | Disposed | 16.6% (price as of 2026-10-02) |
| Feb. 14, 2025 | IDXX | M | 301 | · | · | 21,393 Direct | +1.43% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2025 | IDXX | M | 94 | · | · | 21,092 Direct | +0.45% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2025 | IDXX | M | 93 | · | · | 20,998 Direct | +0.44% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2025 | IDXX | M | 69 | · | · | 20,905 Direct | +0.33% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2025 | IDXX | A | 734 | · | · | 734 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2025 | IDXX | A | 734 | · | · | 734 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2025 | IDXX | A | 217 | · | · | 217 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2025 | IDXX | A | 6,320 | · | · | 6,320 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 11, 2025 | IDXX | M | 1,544 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 11, 2025 | IDXX | M | 1,544 | $67.85 | $104,760 | 20,836 Direct | +8.00% | Acquired | 664.0% (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 95 | · | · | 282 Direct | -25.20% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 93 | · | · | 185 Direct | -33.45% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 69 | · | · | 69 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 97 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 108 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | A | 1,204 | · | · | 1,204 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | A | 178 | · | · | 178 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | A | 5,407 | · | · | 5,407 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | F | 144 | $560.56 | $80,721 | 10,657 Direct | -1.33% | Disposed | -7.5% (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 95 | · | · | 10,801 Direct | +0.89% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 93 | · | · | 10,706 Direct | +0.88% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 69 | · | · | 10,613 Direct | +0.65% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 97 | · | · | 10,544 Direct | +0.93% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2024 | IDXX | M | 108 | · | · | 10,447 Direct | +1.04% | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Feb. 19, 2026 | IDXX | Incentive Stock Option (right-to-buy) | Common Stock | $544.08 | Feb. 13, 2031 | 183 | Disposed |
| Feb. 19, 2026 | IDXX | Incentive Stock Option (right-to-buy) | Common Stock | $505.53 | Feb. 13, 2032 | 197 | Disposed |
| Feb. 19, 2026 | IDXX | Incentive Stock Option (right-to-buy) | Common Stock | $206.94 | Feb. 13, 2029 | 483 | Disposed |
| Feb. 19, 2026 | IDXX | Incentive Stock Option (right-to-buy) | Common Stock | $178.26 | Feb. 13, 2028 | 817 | Disposed |
| Feb. 19, 2026 | IDXX | Incentive Stock Option (right-to-buy) | Common Stock | $141.60 | Feb. 13, 2027 | 719 | Disposed |
| Feb. 17, 2026 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock | $178.26 | Feb. 13, 2028 | 4,180 | Disposed |
| Feb. 17, 2026 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock | $141.60 | Feb. 13, 2027 | 1,191 | Disposed |
| Feb. 14, 2026 | IDXX | Restricted Stock Unit | Common Stock | · | · | 1,508 | Disposed |
| Feb. 14, 2026 | IDXX | Restricted Stock Unit | Common Stock | · | · | 184 | Disposed |
| Feb. 14, 2026 | IDXX | Restricted Stock Unit | Common Stock | · | · | 301 | Disposed |
| Feb. 14, 2026 | IDXX | Restricted Stock Unit | Common Stock | · | · | 94 | Disposed |
| Feb. 14, 2026 | IDXX | Restricted Stock Unit | Common Stock | · | · | 92 | Disposed |
| Feb. 14, 2026 | IDXX | Restricted Stock Unit | Common Stock | · | · | 184 | Disposed |
| Feb. 12, 2026 | IDXX | Incentive Stock Option (right-to-buy) [F2] | Common Stock | $617.20 | Feb. 11, 2036 | 162 | Acquired |
| Feb. 12, 2026 | IDXX | Non-Qualified Stock Option (right-to-buy) [F2] | Common Stock | $617.20 | Feb. 11, 2036 | 13,667 | Acquired |
| Feb. 12, 2026 | IDXX | Restricted Stock Unit | Common Stock | · | · | 1,580 | Acquired |
| Feb. 12, 2026 | IDXX | Restricted Stock Unit | Common Stock | · | · | 4,739 | Acquired |
| Feb. 14, 2025 | IDXX | Restricted Stock Unit | Common Stock | · | · | 301 | Disposed |
| Feb. 14, 2025 | IDXX | Restricted Stock Unit | Common Stock | · | · | 94 | Disposed |
| Feb. 14, 2025 | IDXX | Restricted Stock Unit | Common Stock | · | · | 93 | Disposed |
| Feb. 14, 2025 | IDXX | Restricted Stock Unit | Common Stock | · | · | 69 | Disposed |
| Feb. 13, 2025 | IDXX | Restricted Stock Unit | Common Stock | · | · | 734 | Acquired |
| Feb. 13, 2025 | IDXX | Restricted Stock Unit | Common Stock | · | · | 734 | Acquired |
| Feb. 13, 2025 | IDXX | Incentive Stock Option (right-to-buy) | Common Stock | $459.76 | Feb. 12, 2035 | 217 | Acquired |
| Feb. 13, 2025 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock | $459.76 | Feb. 12, 2035 | 6,320 | Acquired |
| Feb. 11, 2025 | IDXX | Incentive Stock Option (right-to-buy) | Common Stock | $67.85 | Feb. 13, 2026 | 1,544 | Disposed |
| Feb. 14, 2024 | IDXX | Restricted Stock Unit | Common Stock | · | · | 95 | Disposed |
| Feb. 14, 2024 | IDXX | Restricted Stock Unit | Common Stock | · | · | 93 | Disposed |
| Feb. 14, 2024 | IDXX | Restricted Stock Unit | Common Stock | · | · | 69 | Disposed |
| Feb. 14, 2024 | IDXX | Restricted Stock Unit | Common Stock | · | · | 97 | Disposed |
| Feb. 14, 2024 | IDXX | Restricted Stock Unit | Common Stock | · | · | 108 | Disposed |
| Feb. 14, 2024 | IDXX | Restricted Stock Unit | Common Stock | · | · | 1,204 | Acquired |
| Feb. 14, 2024 | IDXX | Incentive Stock Option (right-to-buy) | Common Stock | $560.56 | Feb. 13, 2034 | 178 | Acquired |
| Feb. 14, 2024 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock | $560.56 | Feb. 13, 2034 | 5,407 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 22 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 14, 2025 | IDXX | Common Stock | 9,377 | Direct |
| Jan. 5, 2024 | IDXX | Common Stock | 10,339 | Direct |
| Jan. 5, 2024 | IDXX | Restricted Stock Unit | 108 | Direct |
| Jan. 5, 2024 | IDXX | Restricted Stock Unit | 97 | Direct |
| Jan. 5, 2024 | IDXX | Restricted Stock Unit | 138 | Direct |
| Jan. 5, 2024 | IDXX | Restricted Stock Unit | 278 | Direct |
| Jan. 5, 2024 | IDXX | Restricted Stock Unit | 377 | Direct |
| Jan. 5, 2024 | IDXX | Restricted Stock Unit | 1,508 | Direct |
| Jan. 5, 2024 | IDXX | Incentive Stock Option (right-to-buy) | 1,544 | Direct |
| Jan. 5, 2024 | IDXX | Non-Qualified Stock Option (right-to-buy) | 1,191 | Direct |
| Jan. 5, 2024 | IDXX | Incentive Stock Option (right-to-buy) | 719 | Direct |
| Jan. 5, 2024 | IDXX | Non-Qualified Stock Option (right-to-buy) | 4,180 | Direct |
| Jan. 5, 2024 | IDXX | Incentive Stock Option (right-to-buy) | 817 | Direct |
| Jan. 5, 2024 | IDXX | Non-Qualified Stock Option (right-to-buy) | 4,826 | Direct |
| Jan. 5, 2024 | IDXX | Incentive Stock Option (right-to-buy) | 483 | Direct |
| Jan. 5, 2024 | IDXX | Non-Qualified Stock Option (right-to-buy) | 4,008 | Direct |
| Jan. 5, 2024 | IDXX | Non-Qualified Stock Option (right-to-buy) | 2,468 | Direct |
| Jan. 5, 2024 | IDXX | Incentive Stock Option (right-to-buy) | 183 | Direct |
| Jan. 5, 2024 | IDXX | Non-Qualified Stock Option (right-to-buy) | 3,078 | Direct |
| Jan. 5, 2024 | IDXX | Incentive Stock Option (right-to-buy) | 197 | Direct |
| Jan. 5, 2024 | IDXX | Non-Qualified Stock Option (right-to-buy) | 2,558 | Direct |
| Jan. 5, 2024 | IDXX | Incentive Stock Option (right-to-buy) | 201 | Direct |