Matthew Rabinowitz
CIK 1646382 · View on SEC EDGAR ↗
First SEC filing: July 1, 2015 · Latest: June 16, 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. 7, 2026 | NTRA | S 10b5-1 | 2,000 | $320.90 | $641,800 | 2,000 Indirect | -50.00% | Disposed | 2.4% (price as of 2026-08-20) |
| Aug. 3, 2026 | NTRA | S 10b5-1 | 731 | $267.99 | $195,901 | 2,275,394 Direct | -0.03% | Disposed | 22.6% (price as of 2026-08-20) |
| July 27, 2026 | NTRA | S 10b5-1 | 1,718 | $260.49 | $447,522 | 2,276,125 Direct | -0.08% | Disposed | 26.1% (price as of 2026-08-20) |
| July 6, 2026 | NTRA | S 10b5-1 | 1,000 | $280.00 | $280,000 | 4,000 Indirect | -20.00% | Disposed | 17.3% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 400 | $218.72 | $87,488 | 2,277,843 Direct | -0.02% | Disposed | 50.2% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 3,811 | $217.60 | $829,274 | 2,278,243 Direct | -0.17% | Disposed | 51.0% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 6,741 | $216.81 | $1,461,516 | 2,282,054 Direct | -0.29% | Disposed | 51.5% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 11,877 | $215.91 | $2,564,363 | 2,288,795 Direct | -0.52% | Disposed | 52.2% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 10,338 | $214.72 | $2,219,775 | 2,300,672 Direct | -0.45% | Disposed | 53.0% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 7,836 | $213.88 | $1,675,964 | 2,311,010 Direct | -0.34% | Disposed | 53.6% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 5,097 | $212.84 | $1,084,845 | 2,318,846 Direct | -0.22% | Disposed | 54.4% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 1,237 | $211.81 | $262,009 | 2,323,943 Direct | -0.05% | Disposed | 55.1% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 1,832 | $210.73 | $386,057 | 2,325,180 Direct | -0.08% | Disposed | 55.9% (price as of 2026-08-20) |
| June 15, 2026 | NTRA | S 10b5-1 | 831 | $209.83 | $174,369 | 2,327,012 Direct | -0.04% | Disposed | 56.6% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 1,605 | $219.36 | $352,073 | 2,327,843 Direct | -0.07% | Disposed | 49.8% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 2,133 | $218.17 | $465,357 | 2,329,448 Direct | -0.09% | Disposed | 50.6% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 4,276 | $217.32 | $929,260 | 2,331,581 Direct | -0.18% | Disposed | 51.2% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 7,182 | $216.51 | $1,554,975 | 2,335,857 Direct | -0.31% | Disposed | 51.7% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 3,161 | $215.38 | $680,816 | 2,343,039 Direct | -0.13% | Disposed | 52.5% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 5,707 | $214.35 | $1,223,295 | 2,346,200 Direct | -0.24% | Disposed | 53.3% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 5,034 | $213.43 | $1,074,407 | 2,351,907 Direct | -0.21% | Disposed | 53.9% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 12,142 | $212.27 | $2,577,382 | 2,356,941 Direct | -0.51% | Disposed | 54.8% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 2,957 | $211.61 | $625,731 | 2,369,083 Direct | -0.12% | Disposed | 55.3% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 3,267 | $210.30 | $687,050 | 2,372,040 Direct | -0.14% | Disposed | 56.2% (price as of 2026-08-20) |
| June 12, 2026 | NTRA | S 10b5-1 | 2,536 | $209.50 | $531,292 | 2,375,307 Direct | -0.11% | Disposed | 56.8% (price as of 2026-08-20) |
| March 23, 2023 | NTRA | S 10b5-1 | 120 | $56.08 | $6,730 | 640,084 Direct | -0.02% | Disposed | 485.9% (price as of 2026-08-20) |
| March 22, 2023 | NTRA | S 10b5-1 | 2,484 | $56.32 | $139,899 | 639,803 Direct | -0.39% | Disposed | 483.4% (price as of 2026-08-20) |
| Jan. 3, 2023 | NTRA | S 10b5-1 | 2,706 | $39.55 | $107,022 | 639,803 Direct | -0.42% | Disposed | 730.7% (price as of 2026-08-20) |
| May 12, 2022 | NTRA | P 10b5-1 | 41,026 | $28.09 | $1,152,420 | 241,026 Indirect | +20.51% | Acquired | 1069.6% (price as of 2026-08-20) |
| May 12, 2022 | NTRA | P 10b5-1 | 159,783 | $28.81 | $4,603,348 | 400,989 Indirect | +66.24% | Acquired | 1040.4% (price as of 2026-08-20) |
| May 12, 2022 | NTRA | P 10b5-1 | 19,011 | $29.56 | $561,965 | 420,000 Indirect | +4.74% | Acquired | 1011.5% (price as of 2026-08-20) |
| Oct. 14, 2021 | NTRA | S 10b5-1 | 122 | $112.19 | $13,687 | 582,494 Direct | -0.02% | Disposed | 192.9% (price as of 2026-08-20) |
| Sept. 23, 2021 | NTRA | S 10b5-1 | 159 | $125.67 | $19,982 | 582,309 Direct | -0.03% | Disposed | 161.4% (price as of 2026-08-20) |
| Sept. 10, 2021 | NTRA | S 10b5-1 | 876 | $119.53 | $104,708 | 582,068 Direct | -0.15% | Disposed | 174.9% (price as of 2026-08-20) |
| July 14, 2021 | NTRA | S 10b5-1 | 76 | $116.20 | $8,831 | 580,126 Direct | -0.01% | Disposed | 182.7% (price as of 2026-08-20) |
| June 23, 2021 | NTRA | S 10b5-1 | 99 | $115.18 | $11,403 | 579,895 Direct | -0.02% | Disposed | 185.2% (price as of 2026-08-20) |
| June 10, 2021 | NTRA | S 10b5-1 | 698 | $102.60 | $71,615 | 579,594 Direct | -0.12% | Disposed | 220.2% (price as of 2026-08-20) |
| April 14, 2021 | NTRA | S 10b5-1 | 76 | $108.54 | $8,249 | 577,474 Direct | -0.01% | Disposed | 202.7% (price as of 2026-08-20) |
| March 23, 2021 | NTRA | S 10b5-1 | 101 | $101.72 | $10,274 | 577,243 Direct | -0.02% | Disposed | 223.0% (price as of 2026-08-20) |
| March 10, 2021 | NTRA | S 10b5-1 | 766 | $97.31 | $74,539 | 576,943 Direct | -0.13% | Disposed | 237.6% (price as of 2026-08-20) |
| Feb. 1, 2021 | NTRA | S 10b5-1 | 212 | $107.40 | $22,769 | 574,891 Direct | -0.04% | Disposed | 205.9% (price as of 2026-08-20) |
Showing latest 100 of 252 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 |
|---|---|---|---|---|---|---|---|
| March 22, 2023 | NTRA | Restricted Stock Unit | Common Stock (401) | — | — | 401 | Disposed |
| Jan. 27, 2023 | NTRA | Stock Option (right to buy) | Common Stock (152,643) | $43.74 | Jan. 26, 2033 | 152,643 | Acquired |
| Jan. 27, 2023 | NTRA | Stock Option (right to buy) | Common Stock (152,643) | $43.74 | Jan. 26, 2033 | 152,643 | Acquired |
| Dec. 31, 2022 | NTRA | Restricted Stock Unit | Common Stock (6,763) | — | — | 6,763 | Disposed |
| Dec. 22, 2022 | NTRA | Restricted Stock Unit | Common Stock (400) | — | — | 400 | Disposed |
| Sept. 22, 2022 | NTRA | Restricted Stock Unit | Common Stock (400) | — | — | 400 | Disposed |
| June 22, 2022 | NTRA | Restricted Stock Unit | Common Stock (400) | — | — | 400 | Disposed |
| May 13, 2022 | NTRA | Restricted Stock Unit | Common Stock (6,763) | — | — | 6,763 | Acquired |
| April 13, 2022 | NTRA | Restricted Stock Unit | Common Stock (307) | — | — | 307 | Disposed |
| March 22, 2022 | NTRA | Restricted Stock Unit | Common Stock (401) | — | — | 401 | Disposed |
| March 14, 2022 | NTRA | Stock Option (right to buy) | Common Stock (160,000) | $2.66 | Feb. 25, 2024 | 160,000 | Disposed |
| March 9, 2022 | NTRA | Stock Option (right to buy) | Common Stock (90,000) | $2.66 | Feb. 24, 2024 | 90,000 | Disposed |
| March 9, 2022 | NTRA | Restricted Stock Unit | Common Stock (2,819) | — | — | 2,819 | Disposed |
| Jan. 28, 2022 | NTRA | Stock Option (right to buy) | Common Stock (110,000) | $65.47 | Jan. 27, 2032 | 110,000 | Acquired |
| Jan. 28, 2022 | NTRA | Stock Option (right to buy) | Common Stock (110,000) | $65.47 | Jan. 27, 2032 | 110,000 | Acquired |
| Jan. 13, 2022 | NTRA | Restricted Stock Unit | Common Stock (307) | — | — | 307 | Disposed |
| Dec. 22, 2021 | NTRA | Restricted Stock Unit | Common Stock (400) | — | — | 400 | Disposed |
| Dec. 9, 2021 | NTRA | Restricted Stock Unit | Common Stock (2,818) | — | — | 2,818 | Disposed |
| Oct. 13, 2021 | NTRA | Restricted Stock Unit | Common Stock (307) | — | — | 307 | Disposed |
| Sept. 22, 2021 | NTRA | Restricted Stock Unit | Common Stock (400) | — | — | 400 | Disposed |
| Sept. 9, 2021 | NTRA | Restricted Stock Unit | Common Stock (2,818) | — | — | 2,818 | Disposed |
| July 13, 2021 | NTRA | Restricted Stock Unit | Common Stock (307) | — | — | 307 | Disposed |
| June 22, 2021 | NTRA | Restricted Stock Unit | Common Stock (400) | — | — | 400 | Disposed |
| June 9, 2021 | NTRA | Restricted Stock Units | Common Stock (2,818) | — | — | 2,818 | Disposed |
| May 28, 2021 | NTRA | Stock Option (right to buy) | Common Stock (28,621) | $94.14 | May 27, 2031 | 28,621 | Acquired |
| May 28, 2021 | NTRA | Stock Option (right to buy) | Common Stock (28,621) | $94.14 | May 27, 2031 | 28,621 | Acquired |
| May 28, 2021 | NTRA | Stock Option (right to buy) | Common Stock (162,758) | $94.14 | May 27, 2031 | 162,758 | Acquired |
| April 13, 2021 | NTRA | Restricted Stock Units | Common Stock (307) | — | — | 307 | Disposed |
| March 22, 2021 | NTRA | Restricted Stock Units | Common Stock (401) | — | — | 401 | Disposed |
| March 9, 2021 | NTRA | Restricted Stock Units | Common Stock (2,818) | — | — | 2,818 | Disposed |
| Jan. 29, 2021 | NTRA | Restricted Stock Units | Common Stock (307) | — | — | 307 | Disposed |
| Jan. 29, 2021 | NTRA | Restricted Stock Units | Common Stock (400) | — | — | 400 | Disposed |
| Dec. 9, 2020 | NTRA | Restricted Stock Units | Common Stock (2,818) | — | — | 2,818 | Disposed |
| Oct. 13, 2020 | NTRA | Restricted Stock Unit | Common Stock (307) | — | — | 307 | Disposed |
| Sept. 22, 2020 | NTRA | Restricted Stock Unit | Common Stock (400) | — | — | 400 | Disposed |
| Sept. 9, 2020 | NTRA | Restricted Stock Unit | Common Stock (2,819) | — | — | 2,819 | Disposed |
| July 13, 2020 | NTRA | Restricted Stock Unit | Common Stock (307) | — | — | 307 | Disposed |
| June 30, 2020 | NTRA | Employee Stock Option (right to buy) | Common Stock (600,000) | $13.04 | Dec. 28, 2028 | 600,000 | Acquired |
| June 22, 2020 | NTRA | Restricted Stock Unit | Common Stock (400) | — | — | 400 | Disposed |
| June 9, 2020 | NTRA | Restricted Stock Unit | Common Stock (2,818) | — | — | 2,818 | Disposed |
| April 13, 2020 | NTRA | Restricted Stock Unit | Common Stock (307) | — | — | 307 | Disposed |
| March 27, 2020 | NTRA | Stock Options (right to buy) | Common Stock (128,500) | $25.46 | March 26, 2030 | 128,500 | Acquired |
| March 27, 2020 | NTRA | Stock Options (right to buy) | Common Stock (128,500) | $25.46 | March 26, 2030 | 128,500 | Acquired |
| March 22, 2020 | NTRA | Restricted Stock Unit | Common Stock (1,600) | — | — | 1,600 | Disposed |
| March 9, 2020 | NTRA | Restricted Stock Unit | Common Stock (2,818) | — | — | 2,818 | Disposed |
| Jan. 13, 2020 | NTRA | Restricted Stock Unit | Common Stock (307) | — | — | 307 | Disposed |
| Dec. 9, 2019 | NTRA | Restricted Stock Unit | Common Stock (2,818) | — | — | 2,818 | Disposed |
| Oct. 13, 2019 | NTRA | Restricted Stock Unit | Common Stock (307) | — | — | 307 | Disposed |
| Sept. 19, 2019 | NTRA | Employee Stock Option (right to buy) | Common Stock (75,000) | $10.41 | June 8, 2027 | 75,000 | Acquired |
| Sept. 9, 2019 | NTRA | Restricted Stock Unit | Common Stock (2,818) | — | — | 2,818 | Disposed |
| July 13, 2019 | NTRA | Restricted Stock Unit | Common Stock (306) | — | — | 306 | Disposed |
| June 9, 2019 | NTRA | Restricted Stock Unit | Common Stock (2,818) | — | — | 2,818 | Disposed |
| April 13, 2019 | NTRA | Restricted Stock Unit | Common Stock (1,227) | — | — | 1,227 | Disposed |
| April 12, 2019 | NTRA | Restricted Stock Units | Common Stock (6,403) | — | — | 6,403 | Acquired |
| April 12, 2019 | NTRA | Stock Option (right to buy) | Common Stock (220,000) | $20.27 | April 11, 2029 | 220,000 | Acquired |
| March 21, 2019 | NTRA | Employee Stock Option (right to buy) | Common Stock (50,000) | $10.41 | June 8, 2027 | 50,000 | Acquired |
| March 21, 2019 | NTRA | Employee Stock Option (right to buy) | Common Stock (75,000) | $10.41 | June 8, 2027 | 75,000 | Acquired |
| March 9, 2019 | NTRA | Restricted Stock Unit | Common Stock (11,272) | — | — | 11,272 | Disposed |
| Jan. 8, 2019 | NTRA | Stock Option (Right to Buy) | Common Stock (341,032) | $0.55 | May 18, 2021 | 341,032 | Disposed |
| Jan. 8, 2019 | NTRA | Stock Option (Right to Buy) | Common Stock (324,205) | $1.14 | Sept. 19, 2022 | 324,205 | Disposed |
| April 13, 2018 | NTRA | Restricted Stock Units | Common Stock (4,910) | — | — | 4,910 | Acquired |
| April 13, 2018 | NTRA | Stock Option (right to buy) | Common Stock (20,180) | $10.29 | April 12, 2028 | 20,180 | Acquired |
| April 11, 2018 | NTRA | Employee Stock Option (right to buy) | Common Stock (75,000) | $10.41 | June 8, 2027 | 75,000 | Acquired |
| March 9, 2018 | NTRA | Restricted Stock Units | Common Stock (45,090) | — | — | 45,090 | Acquired |
| March 9, 2018 | NTRA | Stock Option (right to buy) | Common Stock (179,820) | $9.29 | March 8, 2028 | 179,820 | Acquired |
| June 9, 2017 | NTRA | Stock Option (right to buy) | Common Stock (225,000) | $10.41 | June 8, 2027 | 225,000 | Acquired |
| May 9, 2016 | NTRA | Stock Option (right to buy) | Common Stock (180,439) | $0.62 | May 18, 2016 | 180,439 | Disposed |
| April 8, 2016 | NTRA | Stock Option (right to buy) | Common Stock (300,000) | $9.59 | April 7, 2026 | 300,000 | Acquired |
| July 8, 2015 | NTRA | Series A-1 Preferred Stock | Common Stock (1,292,996) | — | — | 1,292,996 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 9 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 1, 2015 | NTRA | Common Stock | 1,719,781 | Direct |
| July 1, 2015 | NTRA | Common Stock | 613,496 | Indirect |
| July 1, 2015 | NTRA | Stock Option (right to buy)→ Common Stock (180,439) | 180,439 | Direct |
| July 1, 2015 | NTRA | Stock Option (right to buy)→ Common Stock (341,032) | 341,032 | Direct |
| July 1, 2015 | NTRA | Stock Option (right to buy)→ Common Stock (248,800) | 248,800 | Direct |
| July 1, 2015 | NTRA | Stock Option (right to buy)→ Common Stock (324,205) | 324,205 | Direct |
| July 1, 2015 | NTRA | Stock Option (right to buy)→ Common Stock (630,036) | 630,036 | Direct |
| July 1, 2015 | NTRA | Stock Option (right to buy)→ Common Stock (613,496) | 613,496 | Direct |
| July 1, 2015 | NTRA | Series A-1 Preferred Stock→ Common Stock (1,292,996) | 1,292,996 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2019 | $334,772 | — | $129,789 | $1,887,600 | $162,403 | — | — | $2,514,564 |
| 2018 | $500,000 | $110,511 | $469,410 | $4,074,476 | $213,110 | — | — | $5,367,507 |
| 2017 | $505,443 | — | — | $2,422,500 | $76,989 | — | — | $3,004,932 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.