John Fesko
Insider
First SEC filing: Jan. 30, 2024 · Latest: Jan. 30, 2024
Insider at
Insider transactions
0 buys (P)
18 sells (S)
Net: $-9,345,666
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. 10, 2026 | NTRA | S 10b5-1 | 6,517 | $321.53 | $2,095,411 | 197,257 Direct | -3.20% | Disposed | 32.4% (price as of 2026-10-05) |
| Aug. 6, 2026 | NTRA | A | 20,000 | · | · | 203,774 Direct | +10.88% | Acquired | (price as of 2026-10-05) |
| Aug. 3, 2026 | NTRA | S 10b5-1 | 295 | $267.99 | $79,057 | 183,774 Direct | -0.16% | Disposed | 58.8% (price as of 2026-10-05) |
| July 28, 2026 | NTRA | S 10b5-1 | 931 | $254.07 | $236,539 | 184,069 Direct | -0.50% | Disposed | 67.5% (price as of 2026-10-05) |
| July 27, 2026 | NTRA | S 10b5-1 | 782 | $260.49 | $203,703 | 185,000 Direct | -0.42% | Disposed | 63.4% (price as of 2026-10-05) |
| May 26, 2026 | NTRA | S 10b5-1 | 1,438 | $202.84 | $291,684 | 185,782 Direct | -0.77% | Disposed | 109.8% (price as of 2026-10-05) |
| May 1, 2026 | NTRA | S 10b5-1 | 291 | $206.16 | $59,993 | 187,220 Direct | -0.16% | Disposed | 106.5% (price as of 2026-10-05) |
| April 27, 2026 | NTRA | S 10b5-1 | 771 | $203.75 | $157,091 | 188,428 Direct | -0.41% | Disposed | 108.9% (price as of 2026-10-05) |
| April 27, 2026 | NTRA | S 10b5-1 | 917 | $204.39 | $187,426 | 187,511 Direct | -0.49% | Disposed | 108.2% (price as of 2026-10-05) |
| March 10, 2026 | NTRA | S 10b5-1 | 707 | $204.13 | $144,320 | 189,199 Direct | -0.37% | Disposed | 108.5% (price as of 2026-10-05) |
| March 9, 2026 | NTRA | A | 1,774 | · | · | 189,906 Direct | +0.94% | Acquired | (price as of 2026-10-05) |
| Feb. 27, 2026 | NTRA | A | 10,051 | · | · | 188,132 Direct | +5.64% | Acquired | (price as of 2026-10-05) |
| Feb. 3, 2026 | NTRA | S 10b5-1 | 1,179 | $230.77 | $272,078 | 180,496 Direct | -0.65% | Disposed | 84.4% (price as of 2026-10-05) |
| Feb. 3, 2026 | NTRA | S 10b5-1 | 2,415 | $231.14 | $558,203 | 178,081 Direct | -1.34% | Disposed | 84.1% (price as of 2026-10-05) |
| Jan. 30, 2026 | NTRA | A 10b5-1 | 6,135 | · | · | 181,675 Direct | +3.49% | Acquired | (price as of 2026-10-05) |
| Jan. 28, 2026 | NTRA | S 10b5-1 | 928 | $237.66 | $220,548 | 175,540 Direct | -0.53% | Disposed | 79.1% (price as of 2026-10-05) |
| Jan. 27, 2026 | NTRA | S 10b5-1 | 784 | $240.53 | $188,576 | 176,468 Direct | -0.44% | Disposed | 77.0% (price as of 2026-10-05) |
| Jan. 21, 2026 | NTRA | S 10b5-1 | 339 | $235.00 | $79,665 | 177,252 Direct | -0.19% | Disposed | 81.1% (price as of 2026-10-05) |
| Jan. 20, 2026 | NTRA | S 10b5-1 | 17,806 | $234.74 | $4,179,780 | 177,591 Direct | -9.11% | Disposed | 81.3% (price as of 2026-10-05) |
| Jan. 14, 2026 | NTRA | A 10b5-1 | 44,698 | · | · | 195,397 Direct | +29.66% | Acquired | (price as of 2026-10-05) |
| Oct. 28, 2025 | NTRA | S 10b5-1 | 928 | $191.46 | $177,675 | 150,699 Direct | -0.61% | Disposed | 122.3% (price as of 2026-10-05) |
| Oct. 27, 2025 | NTRA | S 10b5-1 | 781 | $192.32 | $150,202 | 151,627 Direct | -0.51% | Disposed | 121.3% (price as of 2026-10-05) |
| Oct. 21, 2025 | NTRA | S 10b5-1 | 339 | $187.95 | $63,715 | 152,408 Direct | -0.22% | Disposed | 126.5% (price as of 2026-10-05) |
| Aug. 14, 2025 | NTRA | S 10b5-1 | 672 | $155.46 | $104,469 | 152,753 Direct | -0.44% | Disposed | 173.8% (price as of 2026-10-05) |
| Aug. 14, 2025 | NTRA | S 10b5-1 | 6 | $155.30 | $932 | 152,747 Direct | 0.00% | Disposed | 174.1% (price as of 2026-10-05) |
| Aug. 12, 2025 | NTRA | A | 1,675 | · | · | 153,425 Direct | +1.10% | Acquired | (price as of 2026-10-05) |
| July 28, 2025 | NTRA | S 10b5-1 | 1,710 | $139.81 | $239,075 | 151,750 Direct | -1.11% | Disposed | 204.4% (price as of 2026-10-05) |
| July 21, 2025 | NTRA | S 10b5-1 | 339 | $139.29 | $47,219 | 153,460 Direct | -0.22% | Disposed | 205.6% (price as of 2026-10-05) |
| May 27, 2025 | NTRA | S 10b5-1 | 1,438 | $156.85 | $225,550 | 153,799 Direct | -0.93% | Disposed | 171.4% (price as of 2026-10-05) |
| April 28, 2025 | NTRA | S 10b5-1 | 1,709 | $152.18 | $260,076 | 155,237 Direct | -1.09% | Disposed | 179.7% (price as of 2026-10-05) |
| April 21, 2025 | NTRA | S 10b5-1 | 339 | $145.54 | $49,338 | 156,950 Direct | -0.22% | Disposed | 192.5% (price as of 2026-10-05) |
| April 21, 2025 | NTRA | S 10b5-1 | 4 | $146.10 | $584 | 156,946 Direct | 0.00% | Disposed | 191.3% (price as of 2026-10-05) |
| March 17, 2025 | NTRA | S 10b5-1 | 793 | $146.03 | $115,802 | 157,291 Direct | -0.50% | Disposed | 191.5% (price as of 2026-10-05) |
| March 17, 2025 | NTRA | S 10b5-1 | 2 | $149.57 | $299 | 157,289 Direct | 0.00% | Disposed | 184.6% (price as of 2026-10-05) |
| March 12, 2025 | NTRA | A | 2,040 | · | · | 158,084 Direct | +1.31% | Acquired | (price as of 2026-10-05) |
| Feb. 6, 2025 | NTRA | S 10b5-1 | 663 | $177.77 | $117,862 | 156,044 Direct | -0.42% | Disposed | 139.4% (price as of 2026-10-05) |
| Feb. 5, 2025 | NTRA | A | 1,675 | · | · | 156,707 Direct | +1.08% | Acquired | (price as of 2026-10-05) |
| Jan. 31, 2025 | NTRA | A | 11,832 | · | · | 155,032 Direct | +8.26% | Acquired | (price as of 2026-10-05) |
| Jan. 29, 2025 | NTRA | S 10b5-1 | 913 | $165.87 | $151,439 | 146,317 Direct | -0.62% | Disposed | 156.6% (price as of 2026-10-05) |
| Jan. 29, 2025 | NTRA | S 10b5-1 | 3,115 | $165.87 | $516,685 | 143,202 Direct | -2.13% | Disposed | 156.6% (price as of 2026-10-05) |
| Jan. 29, 2025 | NTRA | S 10b5-1 | 2 | $167.39 | $335 | 143,200 Direct | 0.00% | Disposed | 154.3% (price as of 2026-10-05) |
| Jan. 22, 2025 | NTRA | S 10b5-1 | 21,175 | $164.95 | $3,492,816 | 147,283 Direct | -12.57% | Disposed | 158.0% (price as of 2026-10-05) |
| Jan. 22, 2025 | NTRA | S 10b5-1 | 53 | $171.96 | $9,114 | 147,230 Direct | -0.04% | Disposed | 147.5% (price as of 2026-10-05) |
| Jan. 16, 2025 | NTRA | A | 13,696 | · | · | 127,838 Direct | +12.00% | Acquired | (price as of 2026-10-05) |
| Jan. 16, 2025 | NTRA | A | 29,798 | · | · | 157,636 Direct | +23.31% | Acquired | (price as of 2026-10-05) |
| Jan. 16, 2025 | NTRA | A | 10,822 | · | · | 168,458 Direct | +6.87% | Acquired | (price as of 2026-10-05) |
| Dec. 23, 2024 | NTRA | S 10b5-1 | 1 | $157.95 | $158 | 114,810 Direct | 0.00% | Disposed | 169.5% (price as of 2026-10-05) |
| Dec. 23, 2024 | NTRA | S 10b5-1 | 668 | $159.60 | $106,613 | 114,142 Direct | -0.58% | Disposed | 166.7% (price as of 2026-10-05) |
| Dec. 20, 2024 | NTRA | A | 1,675 | · | · | 114,811 Direct | +1.48% | Acquired | (price as of 2026-10-05) |
| Oct. 28, 2024 | NTRA | S 10b5-1 | 929 | $118.21 | $109,817 | 113,136 Direct | -0.81% | Disposed | 260.1% (price as of 2026-10-05) |
| Oct. 22, 2024 | NTRA | S 10b5-1 | 199 | $120.07 | $23,894 | 114,065 Direct | -0.17% | Disposed | 254.5% (price as of 2026-10-05) |
| Oct. 21, 2024 | NTRA | S 10b5-1 | 342 | $120.76 | $41,300 | 114,264 Direct | -0.30% | Disposed | 252.5% (price as of 2026-10-05) |
| Aug. 13, 2024 | NTRA | S 10b5-1 | 3,956 | $116.67 | $461,547 | 114,606 Direct | -3.34% | Disposed | 264.8% (price as of 2026-10-05) |
| Aug. 12, 2024 | NTRA | A | 10,000 | · | · | 118,562 Direct | +9.21% | Acquired | (price as of 2026-10-05) |
| July 31, 2024 | NTRA | M | 100 | $5.40 | $540 | 108,562 Direct | +0.09% | Acquired | 7782.2% (price as of 2026-10-05) |
| July 31, 2024 | NTRA | M | 100 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| July 29, 2024 | NTRA | S 10b5-1 | 929 | $102.77 | $95,473 | 108,462 Direct | -0.85% | Disposed | 314.2% (price as of 2026-10-05) |
| July 22, 2024 | NTRA | S 10b5-1 | 549 | $105.16 | $57,733 | 109,391 Direct | -0.50% | Disposed | 304.8% (price as of 2026-10-05) |
| May 28, 2024 | NTRA | S 10b5-1 | 1,438 | $109.96 | $158,122 | 109,940 Direct | -1.29% | Disposed | 287.1% (price as of 2026-10-05) |
| April 29, 2024 | NTRA | S 10b5-1 | 929 | $93.14 | $86,527 | 110,748 Direct | -0.83% | Disposed | 357.0% (price as of 2026-10-05) |
| April 23, 2024 | NTRA | S 10b5-1 | 522 | $91.38 | $47,700 | 111,677 Direct | -0.47% | Disposed | 365.8% (price as of 2026-10-05) |
| March 28, 2024 | NTRA | S 10b5-1 | 464 | $90.42 | $41,955 | 112,199 Direct | -0.41% | Disposed | 370.7% (price as of 2026-10-05) |
| March 5, 2024 | NTRA | S 10b5-1 | 15 | $87.36 | $1,310 | 114,486 Direct | -0.01% | Disposed | 387.2% (price as of 2026-10-05) |
| March 5, 2024 | NTRA | S 10b5-1 | 1,823 | $88.36 | $161,080 | 112,663 Direct | -1.59% | Disposed | 381.7% (price as of 2026-10-05) |
| March 1, 2024 | NTRA | A | 2,400 | · | · | 110,894 Direct | +2.21% | Acquired | (price as of 2026-10-05) |
| Feb. 29, 2024 | NTRA | A | 3,607 | · | · | 114,501 Direct | +3.25% | Acquired | (price as of 2026-10-05) |
| Jan. 29, 2024 | NTRA | S 10b5-1 | 2,358 | $65.09 | $153,482 | 108,494 Direct | -2.13% | Disposed | 553.9% (price as of 2026-10-05) |
| Jan. 26, 2024 | NTRA | A | 31,352 | · | · | 110,852 Direct | +39.44% | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| July 31, 2024 | NTRA | Stock Option (right to buy) | Common Stock | $5.40 | Dec. 9, 2024 | 100 | Disposed |
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 |
|---|---|---|---|---|
| Jan. 30, 2024 | NTRA | Common Stock | 79,500 | Direct |
| Jan. 30, 2024 | NTRA | Stock Option (right to buy) | 100 | Direct |
| Jan. 30, 2024 | NTRA | Stock Option (right to buy) | 1,804 | Direct |
| Jan. 30, 2024 | NTRA | Stock Option (right to buy) | 1,725 | Direct |
| Jan. 30, 2024 | NTRA | Stock Option (right to buy) | 12,283 | Direct |