Daniel Niedzwiecki
Insider
First SEC filing: May 10, 2021 · Latest: May 10, 2021
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| April 17, 2026 | LNTH | F | 1,911 | $83.82 | $160,180 | 117,465 Direct | -1.60% | Disposed | 19.2% (price as of 2026-10-06) |
| March 5, 2026 | LNTH | A | 36,692 | · | · | 120,659 Direct | +43.70% | Acquired | (price as of 2026-10-06) |
| March 5, 2026 | LNTH | F | 1,283 | $76.31 | $97,906 | 119,376 Direct | -1.06% | Disposed | 31.0% (price as of 2026-10-06) |
| March 2, 2026 | LNTH | A | 5,169 | · | · | 92,226 Direct | +5.94% | Acquired | (price as of 2026-10-06) |
| March 2, 2026 | LNTH | F | 8,259 | $76.30 | $630,162 | 83,967 Direct | -8.96% | Disposed | 31.0% (price as of 2026-10-06) |
| June 13, 2025 | LNTH | S 10b5-1 | 6,000 | $78.74 | $472,440 | 87,057 Direct | -6.45% | Disposed | 26.9% (price as of 2026-10-06) |
| June 5, 2025 | LNTH | S 10b5-1 | 6,000 | $79.65 | $477,900 | 93,057 Direct | -6.06% | Disposed | 25.5% (price as of 2026-10-06) |
| April 17, 2025 | LNTH | F | 178 | $101.32 | $18,035 | 99,057 Direct | -0.18% | Disposed | -1.4% (price as of 2026-10-06) |
| March 5, 2025 | LNTH | A | 13,927 | · | · | 13,927 Direct | · | Acquired | (price as of 2026-10-06) |
| March 5, 2025 | LNTH | A | 23,884 | · | · | 99,235 Direct | +31.70% | Acquired | (price as of 2026-10-06) |
| March 3, 2025 | LNTH | F | 12,907 | $94.86 | $1,224,358 | 75,351 Direct | -14.62% | Disposed | 5.4% (price as of 2026-10-06) |
| March 3, 2025 | LNTH | A | 10,514 | · | · | 88,258 Direct | +13.52% | Acquired | (price as of 2026-10-06) |
| Aug. 14, 2024 | LNTH | S 10b5-1 | 2,500 | $97.54 | $243,850 | 77,744 Direct | -3.12% | Disposed | 2.5% (price as of 2026-10-06) |
| May 30, 2024 | LNTH | S 10b5-1 | 12,873 | $79.86 | $1,028,038 | 80,244 Direct | -13.82% | Disposed | 25.2% (price as of 2026-10-06) |
| May 17, 2024 | LNTH | F | 1,466 | $79.67 | $116,796 | 93,117 Direct | -1.55% | Disposed | 25.5% (price as of 2026-10-06) |
| April 17, 2024 | LNTH | F | 177 | $61.48 | $10,882 | 94,583 Direct | -0.19% | Disposed | 62.6% (price as of 2026-10-06) |
| March 5, 2024 | LNTH | F | 8,457 | $65.36 | $552,750 | 94,760 Direct | -8.19% | Disposed | 52.9% (price as of 2026-10-06) |
| March 4, 2024 | LNTH | A | 6,466 | · | · | 103,217 Direct | +6.68% | Acquired | (price as of 2026-10-06) |
| March 1, 2024 | LNTH | A | 18,043 | · | · | 18,043 Direct | -50.00% | Disposed | (price as of 2026-10-06) |
| March 1, 2024 | LNTH | A | 30,456 | · | · | 96,751 Direct | +45.94% | Acquired | (price as of 2026-10-06) |
| Sept. 15, 2023 | LNTH | M 10b5-1 | 2,846 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Sept. 15, 2023 | LNTH | S 10b5-1 | 2,846 | $66.43 | $189,060 | 66,295 Direct | -4.12% | Disposed | 50.5% (price as of 2026-10-06) |
| Sept. 15, 2023 | LNTH | M 10b5-1 | 2,846 | $17.79 | $50,630 | 69,141 Direct | +4.29% | Acquired | 461.8% (price as of 2026-10-06) |
| Aug. 11, 2023 | LNTH | S 10b5-1 | 4,297 | $67.93 | $291,895 | 66,295 Direct | -6.09% | Disposed | 47.1% (price as of 2026-10-06) |
| May 18, 2023 | LNTH | F | 1,466 | $97.97 | $143,624 | 70,592 Direct | -2.03% | Disposed | 2.0% (price as of 2026-10-06) |
| May 11, 2023 | LNTH | S 10b5-1 | 6,113 | $98.82 | $604,087 | 72,058 Direct | -7.82% | Disposed | 1.1% (price as of 2026-10-06) |
| April 17, 2023 | LNTH | A | 1,960 | · | · | 1,960 Direct | · | Acquired | (price as of 2026-10-06) |
| April 17, 2023 | LNTH | A | 3,301 | · | · | 78,171 Direct | +4.41% | Acquired | (price as of 2026-10-06) |
| March 7, 2023 | LNTH | S 10b5-1 | 1,055 | $72.15 | $76,118 | 74,870 Direct | -1.39% | Disposed | 38.5% (price as of 2026-10-06) |
| March 6, 2023 | LNTH | S 10b5-1 | 9,079 | $72.56 | $658,772 | 75,925 Direct | -10.68% | Disposed | 37.7% (price as of 2026-10-06) |
| March 3, 2023 | LNTH | A | 7,515 | · | · | 85,004 Direct | +9.70% | Acquired | (price as of 2026-10-06) |
| March 2, 2023 | LNTH | A | 7,196 | · | · | 7,196 Direct | · | Acquired | (price as of 2026-10-06) |
| Nov. 11, 2022 | LNTH | S 10b5-1 | 3,000 | $59.73 | $179,190 | 65,143 Direct | -4.40% | Disposed | 67.3% (price as of 2026-10-06) |
| Aug. 11, 2022 | LNTH | S 10b5-1 | 3,000 | $82.66 | $247,980 | 68,143 Direct | -4.22% | Disposed | 20.9% (price as of 2026-10-06) |
| May 18, 2022 | LNTH | S 10b5-1 | 1,380 | $64.54 | $89,065 | 71,143 Direct | -1.90% | Disposed | 54.9% (price as of 2026-10-06) |
| March 8, 2022 | LNTH | S 10b5-1 | 432 | $50.63 | $21,872 | 72,523 Direct | -0.59% | Disposed | 97.4% (price as of 2026-10-06) |
| March 7, 2022 | LNTH | S 10b5-1 | 1,330 | $52.55 | $69,892 | 72,955 Direct | -1.79% | Disposed | 90.2% (price as of 2026-10-06) |
| March 3, 2022 | LNTH | A | 8,992 | · | · | 8,992 Direct | · | Acquired | (price as of 2026-10-06) |
| March 3, 2022 | LNTH | A | 15,771 | · | · | 74,285 Direct | +26.95% | Acquired | (price as of 2026-10-06) |
| March 2, 2022 | LNTH | A | 12,346 | · | · | 77,489 Direct | +18.95% | Acquired | (price as of 2026-10-06) |
| March 1, 2022 | LNTH | S 10b5-1 | 2,645 | $48.04 | $127,066 | 58,514 Direct | -4.32% | Disposed | 108.1% (price as of 2026-10-06) |
| Feb. 28, 2022 | LNTH | A | 4,099 | · | · | 61,159 Direct | +7.18% | Acquired | (price as of 2026-10-06) |
| Aug. 16, 2021 | LNTH | F | 243 | $24.98 | $6,070 | 57,060 Direct | -0.42% | Disposed | 300.1% (price as of 2026-10-06) |
| May 17, 2021 | LNTH | A | 9,093 | · | · | 57,303 Direct | +18.86% | Acquired | (price as of 2026-10-06) |
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 5, 2025 | LNTH | Stock Option (right to buy) | Common Stock | $100.48 | March 5, 2035 | 13,927 | Acquired |
| March 1, 2024 | LNTH | Stock Option (right to buy) | Common Stock | $64.64 | March 1, 2034 | 18,043 | Disposed |
| Sept. 15, 2023 | LNTH | Stock Option (right to buy) | Common Stock | $17.79 | Nov. 6, 2023 | 2,846 | Disposed |
| April 17, 2023 | LNTH | Stock Option (right to buy) | Common Stock | $89.16 | April 16, 2033 | 1,960 | Acquired |
| March 2, 2023 | LNTH | Stock Option (right to buy) | Common Stock | $73.35 | March 2, 2033 | 7,196 | Acquired |
| March 3, 2022 | LNTH | Stock Option (right to buy) | Common Stock | $49.93 | March 3, 2032 | 8,992 | 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.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2023 | $527,500 | · | · | · | $379,890 | · | $12,701 | $3,115,728 |
| 2022 | $446,495 | $50,000 | · | · | $363,825 | · | $11,611 | $2,393,512 |
| 2021 | $373,575 | $0 | · | · | $242,451 | · | $11,072 | $1,139,696 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.