William J Link PHD
CIK 1228684 · View on SEC EDGAR ↗
First SEC filing: June 5, 2026 · Latest: June 5, 2026
On this page
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 15, 2026 | TARS | S 10b5-1 | 1,928 | $62.94 | $121,348 | 106,786 Direct | -1.77% | Disposed | 15.1% (price as of 2026-08-19) |
| June 15, 2026 | TARS | S 10b5-1 | 10,572 | $61.97 | $655,147 | 108,714 Direct | -8.86% | Disposed | 16.9% (price as of 2026-08-19) |
| March 16, 2026 | TARS | S 10b5-1 | 3,629 | $68.09 | $247,099 | 125,203 Direct | -2.82% | Disposed | 6.4% (price as of 2026-08-19) |
| March 16, 2026 | TARS | S 10b5-1 | 8,378 | $69.03 | $578,333 | 116,825 Direct | -6.69% | Disposed | 4.9% (price as of 2026-08-19) |
| March 16, 2026 | TARS | S 10b5-1 | 493 | $69.75 | $34,387 | 116,332 Direct | -0.42% | Disposed | 3.9% (price as of 2026-08-19) |
| Dec. 15, 2025 | TARS | S 10b5-1 | 5,046 | $80.80 | $407,717 | 136,286 Direct | -3.57% | Disposed | -10.3% (price as of 2026-08-19) |
| Dec. 15, 2025 | TARS | S 10b5-1 | 6,306 | $81.75 | $515,516 | 129,980 Direct | -4.63% | Disposed | -11.4% (price as of 2026-08-19) |
| Dec. 15, 2025 | TARS | S 10b5-1 | 1,148 | $82.39 | $94,584 | 128,832 Direct | -0.88% | Disposed | -12.1% (price as of 2026-08-19) |
| Dec. 15, 2025 | TARS | S | 5,680 | $80.71 | $458,433 | 4,766 Indirect | -54.37% | Disposed | -10.2% (price as of 2026-08-19) |
| Dec. 15, 2025 | TARS | S | 4,766 | $81.50 | $388,429 | 0 Indirect | -100.00% | Disposed | -11.1% (price as of 2026-08-19) |
| Aug. 12, 2024 | TARS | S | 5,021 | $26.53 | $133,207 | 0 Indirect | -100.00% | Disposed | 173.0% (price as of 2026-08-19) |
| Aug. 12, 2024 | TARS | S | 29,979 | $26.01 | $779,754 | 5,021 Indirect | -85.65% | Disposed | 178.5% (price as of 2026-08-19) |
| Feb. 1, 2024 | RXST | S | 7,652 | $50.01 | $382,677 | 24,248 Indirect | -23.99% | Disposed | -87.0% (price as of 2026-08-19) |
| Feb. 1, 2024 | RXST | S | 20,598 | $49.54 | $1,020,425 | 31,900 Indirect | -39.24% | Disposed | -86.9% (price as of 2026-08-19) |
| Aug. 3, 2021 | RXST | P | 31,250 | $16.00 | $500,000 | 37,109 Direct | +533.37% | Acquired | -59.4% (price as of 2026-08-19) |
| Dec. 1, 2020 | GKOS | S | 600 | $68.72 | $41,232 | 15,439 Direct | -3.74% | Disposed | 172.6% (price as of 2026-08-19) |
| Dec. 1, 2020 | GKOS | S | 49,400 | $67.96 | $3,357,224 | 16,039 Direct | -75.49% | Disposed | 175.7% (price as of 2026-08-19) |
| Aug. 21, 2019 | EW | S | 6,914 | $221.56 | $1,531,866 | 9,903 Direct | -41.11% | Disposed | 25.2% (price as of 2026-08-19) |
| Aug. 21, 2019 | EW | S | 1,650 | $222.02 | $366,333 | 4,722 Indirect | -25.89% | Disposed | 25.0% (price as of 2026-08-19) |
| Aug. 20, 2019 | EW | S | 1,650 | $222.98 | $367,917 | 16,817 Direct | -8.93% | Disposed | 24.4% (price as of 2026-08-19) |
| Nov. 19, 2018 | EW | S | 2,628 | $150.06 | $394,358 | 6,372 Indirect | -29.20% | Disposed | 84.9% (price as of 2026-08-19) |
| Nov. 19, 2018 | EW | S | 10,950 | $149.88 | $1,641,186 | 6,050 Indirect | -64.41% | Disposed | 85.1% (price as of 2026-08-19) |
| Feb. 9, 2018 | EW | S | 3,600 | $122.61 | $441,396 | 24,400 Indirect | -12.86% | Disposed | 126.3% (price as of 2026-08-19) |
| Feb. 9, 2018 | EW | S | 8,400 | $122.08 | $1,025,472 | 16,000 Indirect | -34.43% | Disposed | 127.3% (price as of 2026-08-19) |
Showing latest 100 of 190 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 |
|---|---|---|---|---|---|---|---|
| June 25, 2026 | TARS | Restricted Stock Units | Common Stock (806) | — | — | 806 | Acquired |
| June 25, 2026 | TARS | Restricted Stock Units | Common Stock (2,417) | — | — | 2,417 | Acquired |
| June 25, 2026 | TARS | Stock Option (right to buy) | Common Stock (3,837) | $64.34 | June 24, 2036 | 3,837 | Acquired |
| June 12, 2026 | TARS | Restricted Stock Units | Common Stock (2,954) | — | — | 2,954 | Disposed |
| May 25, 2023 | LNSR | Stock Option (Right to Buy) | Common Stock (33,175) | $3.23 | May 25, 2033 | 33,175 | Acquired |
| May 25, 2022 | LNSR | Stock Option (Right to Buy) | Common Stock (15,616) | $7.00 | May 25, 2032 | 15,616 | Acquired |
| Aug. 3, 2021 | RXST | Series H Preferred Stock | Common Stock (2,016,778) | — | — | 2,016,778 | Disposed |
| June 15, 2021 | TARS | Stock Option (right to buy) | Common Stock (10,000) | $35.26 | June 15, 2031 | 10,000 | Acquired |
| June 15, 2021 | TARS | Stock Option (right to buy) | Common Stock (10,000) | $35.26 | June 15, 2031 | 10,000 | Acquired |
| May 18, 2021 | LNSR | Stock Option (Right to Buy) | Common Stock (20,847) | $7.49 | May 18, 2031 | 20,847 | Acquired |
| Dec. 1, 2020 | GKOS | Stock Option (Right to Buy) | Common Stock (15,000) | $24.69 | June 2, 2026 | 15,000 | Disposed |
| Dec. 1, 2020 | GKOS | Stock Option (Right to Buy) | Common Stock (25,000) | $32.00 | July 23, 2025 | 25,000 | Disposed |
| Dec. 1, 2020 | GKOS | Stock Option (Right to Buy) | Common Stock (10,000) | $7.28 | July 10, 2024 | 10,000 | Disposed |
| Oct. 20, 2020 | TARS | Series B Preferred Stock | Common Stock (1,112,301) | — | — | 1,112,301 | Disposed |
| June 4, 2019 | VANI | Non-Qualified Stock Option(right to buy) | Common Stock | $0.71 | June 4, 2029 | 56,685 | Acquired |
| June 2, 2016 | GKOS | Stock Option (right to buy) | Common Stock (15,000) | $24.69 | June 2, 2026 | 15,000 | Acquired |
| July 23, 2015 | GKOS | Stock option (right to buy) | Common Stock (25,000) | $32.00 | July 23, 2025 | 25,000 | Acquired |
| June 30, 2015 | GKOS | Series D Convertible Preferred Stock Warrant (right to buy) | Common Stock (552) | $7.65 | — | 552 | Disposed |
| June 30, 2015 | GKOS | Series D Convertible Preferred Stock Warrant (right to buy) | Common Stock (1,296) | $7.65 | — | 1,296 | Disposed |
| June 30, 2015 | GKOS | Series D Convertible Preferred Stock Warrant (right to buy) | Common Stock (577) | $7.65 | — | 577 | Disposed |
| June 30, 2015 | GKOS | Series D Convertible Preferred Stock Warrant (right to buy) | Common Stock (27,612) | $7.65 | — | 27,612 | Disposed |
| June 30, 2015 | GKOS | Series F Convertible Preferred Stock | Common Stock (5,465) | — | — | 5,465 | Disposed |
| June 30, 2015 | GKOS | Series F Convertible Preferred Stock | Common Stock (12,840) | — | — | 12,840 | Disposed |
| June 30, 2015 | GKOS | Series F Convertible Preferred Stock | Common Stock (5,715) | — | — | 5,715 | Disposed |
| June 30, 2015 | GKOS | Series F Convertible Preferred Stock | Common Stock (273,337) | — | — | 273,337 | Disposed |
| June 30, 2015 | GKOS | Series E Convertible Preferred Stock | Common Stock (3,271) | — | — | 3,271 | Disposed |
| June 30, 2015 | GKOS | Series E Convertible Preferred Stock | Common Stock (7,684) | — | — | 7,684 | Disposed |
| June 30, 2015 | GKOS | Series E Convertible Preferred Stock | Common Stock (3,420) | — | — | 3,420 | Disposed |
| June 30, 2015 | GKOS | Series E Convertible Preferred Stock | Common Stock (163,592) | — | — | 163,592 | Disposed |
| June 30, 2015 | GKOS | Series D Convertible Preferred Stock | Common Stock (10,791) | — | — | 10,791 | Disposed |
| June 30, 2015 | GKOS | Series D Convertible Preferred Stock | Common Stock (25,226) | — | — | 25,226 | Disposed |
| June 30, 2015 | GKOS | Series D Convertible Preferred Stock | Common Stock (11,805) | — | — | 11,805 | Disposed |
| June 30, 2015 | GKOS | Series D Convertible Preferred Stock | Common Stock (548,464) | — | — | 548,464 | Disposed |
| June 30, 2015 | GKOS | Series C Convertible Preferred Stock | Common Stock (9,386) | — | — | 9,386 | Disposed |
| June 30, 2015 | GKOS | Series C Convertible Preferred Stock | Common Stock (21,900) | — | — | 21,900 | Disposed |
| June 30, 2015 | GKOS | Series C Convertible Preferred Stock | Common Stock (10,428) | — | — | 10,428 | Disposed |
| June 30, 2015 | GKOS | Series C Convertible Preferred Stock | Common Stock (479,714) | — | — | 479,714 | Disposed |
| June 30, 2015 | GKOS | Series B Convertible Preferred Stock | Common Stock (16,666) | — | — | 16,666 | Disposed |
| June 30, 2015 | GKOS | Series B Convertible Preferred Stock | Common Stock (38,888) | — | — | 38,888 | Disposed |
| June 30, 2015 | GKOS | Series B Convertible Preferred Stock | Common Stock (18,518) | — | — | 18,518 | Disposed |
| June 30, 2015 | GKOS | Series B Convertible Preferred Stock | Common Stock (851,852) | — | — | 851,852 | Disposed |
| June 30, 2015 | GKOS | Series A Convertible Preferred Stock | Common Stock (10,800) | — | — | 10,800 | Disposed |
| June 30, 2015 | GKOS | Series A Convertible Preferred Stock | Common Stock (25,200) | — | — | 25,200 | Disposed |
| June 30, 2015 | GKOS | Series A Convertible Preferred Stock | Common Stock (12,000) | — | — | 12,000 | Disposed |
| June 30, 2015 | GKOS | Series A Convertible Preferred Stock | Common Stock (552,000) | — | — | 552,000 | Disposed |
| Feb. 20, 2014 | INGN | Series E Preferred Stock | Common Stock (1,844,238) | — | — | 684,970 | Disposed |
| Feb. 20, 2014 | INGN | Series D Preferred Stock | Common Stock (1,029,858) | — | — | 547,941 | Disposed |
| Feb. 20, 2014 | INGN | Series C Preferred Stock | Common Stock (298,312) | — | — | 172,421 | Disposed |
| Feb. 20, 2014 | INGN | Series B Preferred Stock | Common Stock (475,310) | — | — | 327,556 | Disposed |
| Feb. 20, 2014 | INGN | Series E Preferred Stock | Common Stock (16,477) | — | — | 6,120 | Disposed |
| Feb. 20, 2014 | INGN | Series D Preferred Stock | Common Stock (9,200) | — | — | 4,895 | Disposed |
| Feb. 20, 2014 | INGN | Series C Preferred Stock | Common Stock (2,662) | — | — | 1,539 | Disposed |
| Feb. 20, 2014 | INGN | Series B Preferred Stock | Common Stock (4,247) | — | — | 2,927 | Disposed |
| Feb. 20, 2014 | INGN | Series E Preferred Stock | Common Stock (34,996) | — | — | 12,998 | Disposed |
| Feb. 20, 2014 | INGN | Series D Preferred Stock | Common Stock (19,536) | — | — | 10,395 | Disposed |
| Feb. 20, 2014 | INGN | Series C Preferred Stock | Common Stock (5,658) | — | — | 3,271 | Disposed |
| Feb. 20, 2014 | INGN | Series B Preferred Stock | Common Stock (9,019) | — | — | 6,216 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 54 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 29, 2021 | RXST | Series H Preferred Stock→ Common Stock (2,016,778) | 2,016,778 | Indirect |
| Oct. 15, 2020 | TARS | Common Stock | 134,632 | Direct |
| Oct. 15, 2020 | TARS | Series B Preferred Stock→ Common Stock (1,112,301) | 1,112,301 | Indirect |
| Sept. 17, 2020 | LNSR | Common Stock | 427,537 | Direct |
| June 24, 2015 | GKOS | Series A Convertible Preferred Stock→ Common Stock (552,000) | 552,000 | Indirect |
| June 24, 2015 | GKOS | Series A Convertible Preferred Stock→ Common Stock (12,000) | 12,000 | Indirect |
| June 24, 2015 | GKOS | Series A Convertible Preferred Stock→ Common Stock (25,200) | 25,200 | Indirect |
| June 24, 2015 | GKOS | Series A Convertible Preferred Stock→ Common Stock (10,800) | 10,800 | Indirect |
| June 24, 2015 | GKOS | Series B Convertible Preferred Stock→ Common Stock (851,852) | 851,852 | Indirect |
| June 24, 2015 | GKOS | Series B Convertible Preferred Stock→ Common Stock (18,518) | 18,518 | Indirect |
| June 24, 2015 | GKOS | Series B Convertible Preferred Stock→ Common Stock (38,888) | 38,888 | Indirect |
| June 24, 2015 | GKOS | Series B Convertible Preferred Stock→ Common Stock (16,666) | 16,666 | Indirect |
| June 24, 2015 | GKOS | Series C Convertible Preferred Stock→ Common Stock (479,714) | 479,714 | Indirect |
| June 24, 2015 | GKOS | Series C Convertible Preferred Stock→ Common Stock (10,428) | 10,428 | Indirect |
| June 24, 2015 | GKOS | Series C Convertible Preferred Stock→ Common Stock (21,900) | 21,900 | Indirect |
| June 24, 2015 | GKOS | Series C Convertible Preferred Stock→ Common Stock (9,386) | 9,386 | Indirect |
| June 24, 2015 | GKOS | Series D Convertible Preferred Stock→ Common Stock (548,464) | 548,464 | Indirect |
| June 24, 2015 | GKOS | Series D Convertible Preferred Stock→ Common Stock (11,805) | 11,805 | Indirect |
| June 24, 2015 | GKOS | Series D Convertible Preferred Stock→ Common Stock (25,226) | 25,226 | Indirect |
| June 24, 2015 | GKOS | Series D Convertible Preferred Stock→ Common Stock (10,791) | 10,791 | Indirect |
| June 24, 2015 | GKOS | Series E Convertible Preferred Stock→ Common Stock (163,592) | 163,592 | Indirect |
| June 24, 2015 | GKOS | Series E Convertible Preferred Stock→ Common Stock (3,420) | 3,420 | Indirect |
| June 24, 2015 | GKOS | Series E Convertible Preferred Stock→ Common Stock (7,684) | 7,684 | Indirect |
| June 24, 2015 | GKOS | Series E Convertible Preferred Stock→ Common Stock (3,271) | 3,271 | Indirect |
| June 24, 2015 | GKOS | Series F Convertible Preferred Stock→ Common Stock (273,337) | 273,337 | Indirect |
| June 24, 2015 | GKOS | Series F Convertible Preferred Stock→ Common Stock (5,715) | 5,715 | Indirect |
| June 24, 2015 | GKOS | Series F Convertible Preferred Stock→ Common Stock (12,840) | 12,840 | Indirect |
| June 24, 2015 | GKOS | Series F Convertible Preferred Stock→ Common Stock (5,465) | 5,465 | Indirect |
| June 24, 2015 | GKOS | Series D Convertible Preferred Stock Warrant (right to buy)→ Common Stock (27,612) | 27,612 | Indirect |
| June 24, 2015 | GKOS | Series D Convertible Preferred Stock Warrant (right to buy)→ Common Stock (577) | 577 | Indirect |
| June 24, 2015 | GKOS | Series D Convertible Preferred Stock Warrant (right to buy)→ Common Stock (1,296) | 1,296 | Indirect |
| June 24, 2015 | GKOS | Series D Convertible Preferred Stock Warrant (right to buy)→ Common Stock (552) | 552 | Indirect |
| June 24, 2015 | GKOS | Stock Option (right to buy)→ Common Stock (10,000) | 10,000 | Direct |
| Dec. 2, 2014 | VANI | Common Stock | 4,370,964 | Indirect |
| Dec. 2, 2014 | VANI | Common Stock | 82,949 | Indirect |
| Dec. 2, 2014 | VANI | Common Stock | 39,062 | Indirect |
| Nov. 18, 2014 | VANI | Common Stock | 4,370,964 | Indirect |
| Nov. 18, 2014 | VANI | Common Stock | 82,949 | Indirect |
| Nov. 18, 2014 | VANI | Common Stock | 38,062 | Indirect |
| Feb. 12, 2014 | INGN | Common Stock | 911 | Indirect |
| Feb. 12, 2014 | INGN | Common Stock | 427 | Indirect |
| Feb. 12, 2014 | INGN | Common Stock | 48,098 | Indirect |
| Feb. 12, 2014 | INGN | Series B Preferred Stock→ Common Stock (6,216) | 6,216 | Indirect |
| Feb. 12, 2014 | INGN | Series C Preferred Stock→ Common Stock (3,271) | 3,271 | Indirect |
| Feb. 12, 2014 | INGN | Series D Preferred Stock→ Common Stock (10,395) | 10,395 | Indirect |
| Feb. 12, 2014 | INGN | Series E Preferred Stock→ Common Stock (12,998) | 12,998 | Indirect |
| Feb. 12, 2014 | INGN | Series B Preferred Stock→ Common Stock (2,927) | 2,927 | Indirect |
| Feb. 12, 2014 | INGN | Series C Preferred Stock→ Common Stock (1,539) | 1,539 | Indirect |
| Feb. 12, 2014 | INGN | Series D Preferred Stock→ Common Stock (4,895) | 4,895 | Indirect |
| Feb. 12, 2014 | INGN | Series E Preferred Stock→ Common Stock (6,120) | 6,120 | Indirect |