John Lister
CIK 1464741 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 5, 2025 · Latest: Nov. 5, 2025
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
0 buys (P)
0 sells (S)
Net:
$0
+ 59 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
59 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 9, 2017 | DXCM | S 10b5-1 | 3,000 | $77.67 | $233,010 | 93,732 Direct | -3.10% | Disposed | 370.3% (price as of 2026-08-19) |
| Feb. 9, 2017 | DXCM | S 10b5-1 | 3,000 | $79.73 | $239,190 | 70,598 Direct | -4.08% | Disposed | 358.2% (price as of 2026-08-19) |
| Jan. 13, 2017 | DXCM | S 10b5-1 | 15,000 | $79.36 | $1,190,400 | 70,598 Direct | -17.52% | Disposed | 360.3% (price as of 2026-08-19) |
| Jan. 9, 2017 | DXCM | S 10b5-1 | 3,000 | $63.02 | $189,060 | 70,598 Direct | -4.08% | Disposed | 479.7% (price as of 2026-08-19) |
| Nov. 9, 2016 | DXCM | S 10b5-1 | 3,417 | $62.50 | $213,562 | 70,598 Direct | -4.62% | Disposed | 484.5% (price as of 2026-08-19) |
| Oct. 10, 2016 | DXCM | S 10b5-1 | 3,560 | $84.41 | $300,500 | 74,015 Direct | -4.59% | Disposed | 332.8% (price as of 2026-08-19) |
| Sept. 9, 2016 | DXCM | S 10b5-1 | 3,560 | $93.65 | $333,394 | 87,214 Direct | -3.92% | Disposed | 290.1% (price as of 2026-08-19) |
| Sept. 9, 2016 | DXCM | S 10b5-1 | 3,560 | $93.65 | $333,394 | 87,214 Direct | -3.92% | Disposed | 290.1% (price as of 2026-08-19) |
| Aug. 9, 2016 | DXCM | S 10b5-1 | 3,560 | $91.07 | $324,209 | 90,774 Direct | -3.77% | Disposed | 301.1% (price as of 2026-08-19) |
| July 11, 2016 | DXCM | S 10b5-1 | 3,560 | $79.35 | $282,486 | 94,334 Direct | -3.64% | Disposed | 360.4% (price as of 2026-08-19) |
| June 9, 2016 | DXCM | S 10b5-1 | 3,560 | $73.27 | $260,841 | 65,894 Direct | -5.13% | Disposed | 398.6% (price as of 2026-08-19) |
| May 9, 2016 | DXCM | S 10b5-1 | 3,560 | $62.50 | $222,500 | 69,454 Direct | -4.88% | Disposed | 484.5% (price as of 2026-08-19) |
| April 12, 2016 | DXCM | S 10b5-1 | 3,704 | $65.78 | $243,649 | 73,014 Direct | -4.83% | Disposed | 455.3% (price as of 2026-08-19) |
| March 14, 2016 | DXCM | S 10b5-1 | 3,560 | $63.75 | $226,950 | 76,718 Direct | -4.43% | Disposed | 473.0% (price as of 2026-08-19) |
| Feb. 18, 2016 | DXCM | S 10b5-1 | 3,560 | $62.50 | $222,500 | 94,150 Direct | -3.64% | Disposed | 484.5% (price as of 2026-08-19) |
| Jan. 8, 2016 | DXCM | S 10b5-1 | 3,560 | $82.57 | $293,949 | 97,710 Direct | -3.52% | Disposed | 342.4% (price as of 2026-08-19) |
| Dec. 14, 2015 | DXCM | S 10b5-1 | 3,560 | $82.50 | $293,700 | 101,270 Direct | -3.40% | Disposed | 342.8% (price as of 2026-08-19) |
| Dec. 8, 2015 | DXCM | S 10b5-1 | 2,476 | $87.16 | $215,808 | 104,830 Direct | -2.31% | Disposed | 319.1% (price as of 2026-08-19) |
| Nov. 10, 2015 | DXCM | S 10b5-1 | 17,500 | $84.14 | $1,472,450 | 107,306 Direct | -14.02% | Disposed | 334.2% (price as of 2026-08-19) |
| Nov. 9, 2015 | DXCM | S 10b5-1 | 2,475 | $83.83 | $207,479 | 107,306 Direct | -2.25% | Disposed | 335.8% (price as of 2026-08-19) |
| Sept. 8, 2015 | DXCM | S 10b5-1 | 2,642 | $89.36 | $236,089 | 121,347 Direct | -2.13% | Disposed | 308.8% (price as of 2026-08-19) |
| Aug. 10, 2015 | DXCM | S 10b5-1 | 1,776 | $90.98 | $161,580 | 123,989 Direct | -1.41% | Disposed | 301.5% (price as of 2026-08-19) |
| July 8, 2015 | DXCM | S 10b5-1 | 1,776 | $79.94 | $141,973 | 125,765 Direct | -1.39% | Disposed | 357.0% (price as of 2026-08-19) |
| June 8, 2015 | DXCM | S 10b5-1 | 1,776 | $72.03 | $127,925 | 127,541 Direct | -1.37% | Disposed | 407.1% (price as of 2026-08-19) |
| May 8, 2015 | DXCM | S 10b5-1 | 1,777 | $68.50 | $121,724 | 129,317 Direct | -1.36% | Disposed | 433.3% (price as of 2026-08-19) |
| May 8, 2015 | DXCM | S 10b5-1 | 2,396 | $68.49 | $164,102 | 131,094 Direct | -1.79% | Disposed | 433.4% (price as of 2026-08-19) |
| April 8, 2015 | DXCM | S 10b5-1 | 5,039 | $63.84 | $321,690 | 131,094 Direct | -3.70% | Disposed | 472.2% (price as of 2026-08-19) |
| March 9, 2015 | DXCM | S 10b5-1 | 5,039 | $58.77 | $296,142 | 147,518 Direct | -3.30% | Disposed | 521.6% (price as of 2026-08-19) |
| Feb. 9, 2015 | DXCM | S 10b5-1 | 2,452 | $61.66 | $151,190 | 110,018 Direct | -2.18% | Disposed | 492.4% (price as of 2026-08-19) |
| Feb. 9, 2015 | DXCM | S 10b5-1 | 2,587 | $61.66 | $159,514 | 110,018 Direct | -2.30% | Disposed | 492.4% (price as of 2026-08-19) |
| Jan. 8, 2015 | DXCM | S 10b5-1 | 5,039 | $57.42 | $289,339 | 110,018 Direct | -4.38% | Disposed | 536.2% (price as of 2026-08-19) |
| Dec. 12, 2014 | DXCM | S 10b5-1 | 1,750 | $53.55 | $93,712 | 106,018 Direct | -1.62% | Disposed | 582.2% (price as of 2026-08-19) |
| Dec. 12, 2014 | DXCM | S 10b5-1 | 1,329 | $53.54 | $71,155 | 106,018 Direct | -1.24% | Disposed | 582.3% (price as of 2026-08-19) |
| Nov. 12, 2014 | DXCM | S 10b5-1 | 1,328 | $52.81 | $70,132 | 107,347 Direct | -1.22% | Disposed | 591.7% (price as of 2026-08-19) |
| Nov. 12, 2014 | DXCM | S 10b5-1 | 1,750 | $52.82 | $92,435 | 108,675 Direct | -1.58% | Disposed | 591.6% (price as of 2026-08-19) |
| Oct. 13, 2014 | DXCM | S 10b5-1 | 1,650 | $40.42 | $66,693 | 108,675 Direct | -1.50% | Disposed | 803.8% (price as of 2026-08-19) |
| Oct. 13, 2014 | DXCM | S 10b5-1 | 1,750 | $40.41 | $70,718 | 110,325 Direct | -1.56% | Disposed | 804.0% (price as of 2026-08-19) |
| Sept. 12, 2014 | DXCM | S 10b5-1 | 1,750 | $43.70 | $76,475 | 104,825 Direct | -1.64% | Disposed | 735.9% (price as of 2026-08-19) |
| Sept. 12, 2014 | DXCM | S 10b5-1 | 1,768 | $43.70 | $77,262 | 104,825 Direct | -1.66% | Disposed | 735.9% (price as of 2026-08-19) |
| Aug. 12, 2014 | DXCM | S 10b5-1 | 1,750 | $43.68 | $76,440 | 112,555 Direct | -1.53% | Disposed | 736.3% (price as of 2026-08-19) |
| Aug. 12, 2014 | DXCM | S 10b5-1 | 1,603 | $43.68 | $70,019 | 112,555 Direct | -1.40% | Disposed | 736.3% (price as of 2026-08-19) |
Showing latest 100 of 151 transactions
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 |
|---|---|---|---|---|---|---|---|
| Nov. 7, 2025 | BLLN | Stock Option (right to buy) | Class A Common Stock (133,300) | $23.15 | Aug. 4, 2035 | 133,300 | Acquired |
| Nov. 7, 2025 | BLLN | Stock Option (right to buy) | Common Stock (133,300) | $23.15 | Aug. 4, 2035 | 133,300 | Disposed |
| March 9, 2017 | DXCM | Incentive Stock Option (right to buy) | Common Stock (3,000) | $8.85 | Jan. 14, 2018 | 3,000 | Disposed |
| Feb. 9, 2017 | DXCM | Incentive Stock Option (right to buy) | Common Stock (3,000) | $8.85 | Jan. 14, 2018 | 3,000 | Disposed |
| Jan. 13, 2017 | DXCM | Incentive Stock Option (right to buy) | Common Stock (15,000) | $8.85 | Jan. 14, 2018 | 15,000 | Disposed |
| Jan. 9, 2017 | DXCM | Incentive Stock Option (right to buy) | Common Stock (3,000) | $8.85 | Jan. 14, 2018 | 3,000 | Disposed |
| Nov. 10, 2015 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (17,500) | $9.80 | March 12, 2020 | 17,500 | Disposed |
| May 8, 2015 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (2,396) | $8.85 | Jan. 14, 2018 | 2,396 | Disposed |
| April 8, 2015 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (5,039) | $8.85 | Jan. 14, 2018 | 5,039 | Disposed |
| March 9, 2015 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (5,039) | $8.85 | Jan. 14, 2018 | 5,039 | Disposed |
| Feb. 9, 2015 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (2,587) | $8.85 | Jan. 14, 2018 | 2,587 | Disposed |
| Feb. 9, 2015 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (2,452) | $4.58 | May 19, 2019 | 2,452 | Disposed |
| Jan. 8, 2015 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (5,039) | $4.58 | May 19, 2019 | 5,039 | Disposed |
| Dec. 15, 2014 | DXCM | Incentive Stock Option (right to buy) | Common Stock (4,000) | $4.58 | May 19, 2019 | 4,000 | Disposed |
| Dec. 12, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| Nov. 12, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| Oct. 13, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| Sept. 15, 2014 | DXCM | Incentive Stock Option (right to buy) | Common Stock (5,500) | $4.58 | May 19, 2019 | 5,500 | Disposed |
| Sept. 12, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| Aug. 12, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| July 14, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| June 12, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| May 12, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| April 14, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| March 12, 2014 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (1,750) | $4.58 | May 19, 2019 | 1,750 | Disposed |
| Nov. 13, 2013 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock. (9,372) | $3.19 | Dec. 11, 2018 | 9,372 | Disposed |
| Nov. 13, 2013 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (6,718) | $7.63 | May 19, 2018 | 6,718 | Disposed |
| Nov. 13, 2013 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (7,300) | $4.58 | May 19, 2019 | 7,300 | Disposed |
| Nov. 13, 2013 | DXCM | Incentive Stock Option (right to buy) | Common Stock (782) | $7.63 | May 19, 2018 | 782 | Disposed |
| Nov. 13, 2013 | DXCM | Incentive Stock Option (right to buy) | Common Stock (3,128) | $3.19 | Dec. 11, 2018 | 3,128 | Disposed |
| March 12, 2010 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (35,788) | $9.80 | March 12, 2020 | 35,788 | Acquired |
| March 12, 2010 | DXCM | Incentive Stock Option (right to buy) | Common Stock (5,212) | $9.80 | March 12, 2020 | 5,212 | Acquired |
| May 19, 2009 | DXCM | Non-Qualified Stock Option (Right to Buy) | Common Stock (50,000) | $4.58 | May 18, 2019 | 50,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Nov. 5, 2025 | BLLN | Stock Option (right to buy)→ Common Stock [F2] (133,300) | 133,300 | Direct |
| May 22, 2009 | DXCM | Common Stock | 1,500 | Direct |
| May 22, 2009 | DXCM | Incentive Stock Option (Right to Buy)→ Common Stock (50,000) | 50,000 | Direct |
| May 22, 2009 | DXCM | Non-Qualified Stock Option (Right to Buy)→ Common Stock (7,500) | 7,500 | Direct |
| May 22, 2009 | DXCM | Non-Qualified Stock Option (Right to Buy)→ Common Stock (12,500) | 12,500 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2009 | $185,050 | — | — | — | $52,250 | — | $18,232 | $394,407 |
BLLN
Chief Administrative Officer| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $182,978 | $61,213 | — | — | — | — | $2,401 | $3,361,110 |
| 2024 | — | — | — | — | — | — | — | — |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.