Stephen K. Klasko M.D.
CIK 1433241 · View on SEC EDGAR ↗
Insider
First SEC filing: May 13, 2025 · Latest: May 13, 2025
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 75 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
75 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 12, 2021 | TFX | S 10b5-1 | 150 | $423.95 | $63,592 | 1,424 Direct | -9.53% | Disposed | -67.8% (price as of 2026-08-20) |
| July 12, 2021 | TFX | S 10b5-1 | 1,200 | $423.39 | $508,068 | 1,574 Direct | -43.26% | Disposed | -67.7% (price as of 2026-08-20) |
| July 12, 2021 | TFX | S 10b5-1 | 2,214 | $422.00 | $934,308 | 2,774 Direct | -44.39% | Disposed | -67.6% (price as of 2026-08-20) |
| Oct. 26, 2020 | TFX | S 10b5-1 | 200 | $361.38 | $72,276 | 1,121 Direct | -15.14% | Disposed | -62.2% (price as of 2026-08-20) |
| Sept. 25, 2020 | TFX | S 10b5-1 | 200 | $326.15 | $65,230 | 1,121 Direct | -15.14% | Disposed | -58.1% (price as of 2026-08-20) |
| Aug. 25, 2020 | TFX | S 10b5-1 | 200 | $373.74 | $74,748 | 1,121 Direct | -15.14% | Disposed | -63.4% (price as of 2026-08-20) |
| July 27, 2020 | TFX | S 10b5-1 | 200 | $386.35 | $77,270 | 1,121 Direct | -15.14% | Disposed | -64.6% (price as of 2026-08-20) |
| May 26, 2020 | TFX | S 10b5-1 | 200 | $375.14 | $75,028 | 1,121 Direct | -15.14% | Disposed | -63.6% (price as of 2026-08-20) |
| April 27, 2020 | TFX | S 10b5-1 | 200 | $342.26 | $68,452 | 738 Direct | -21.32% | Disposed | -60.1% (price as of 2026-08-20) |
| March 25, 2020 | TFX | S 10b5-1 | 200 | $254.75 | $50,950 | 738 Direct | -21.32% | Disposed | -46.3% (price as of 2026-08-20) |
| Feb. 25, 2020 | TFX | S 10b5-1 | 200 | $360.95 | $72,190 | 738 Direct | -21.32% | Disposed | -62.1% (price as of 2026-08-20) |
| Jan. 27, 2020 | TFX | S 10b5-1 | 200 | $375.71 | $75,142 | 736 Direct | -21.37% | Disposed | -63.6% (price as of 2026-08-20) |
| Dec. 26, 2019 | TFX | S 10b5-1 | 200 | $374.35 | $74,870 | 736 Direct | -21.37% | Disposed | -63.5% (price as of 2026-08-20) |
| Nov. 25, 2019 | TFX | S 10b5-1 | 200 | $346.63 | $69,326 | 736 Direct | -21.37% | Disposed | -60.6% (price as of 2026-08-20) |
| Oct. 25, 2019 | TFX | S 10b5-1 | 200 | $316.01 | $63,202 | 736 Direct | -21.37% | Disposed | -56.7% (price as of 2026-08-20) |
| Sept. 25, 2019 | TFX | S 10b5-1 | 200 | $342.50 | $68,500 | 736 Direct | -21.37% | Disposed | -60.1% (price as of 2026-08-20) |
| Aug. 26, 2019 | TFX | S 10b5-1 | 200 | $361.06 | $72,212 | 736 Direct | -21.37% | Disposed | -62.1% (price as of 2026-08-20) |
| July 25, 2019 | TFX | S 10b5-1 | 200 | $343.28 | $68,656 | 736 Direct | -21.37% | Disposed | -60.2% (price as of 2026-08-20) |
| June 25, 2019 | TFX | S 10b5-1 | 200 | $332.17 | $66,434 | 736 Direct | -21.37% | Disposed | -58.8% (price as of 2026-08-20) |
| May 28, 2019 | TFX | S 10b5-1 | 200 | $295.81 | $59,162 | 736 Direct | -21.37% | Disposed | -53.8% (price as of 2026-08-20) |
| April 25, 2019 | TFX | S 10b5-1 | 200 | $277.14 | $55,428 | 389 Direct | -33.96% | Disposed | -50.7% (price as of 2026-08-20) |
| March 28, 2019 | TFX | S 10b5-1 | 200 | $301.68 | $60,336 | 389 Direct | -33.96% | Disposed | -54.7% (price as of 2026-08-20) |
| Feb. 1, 2018 | TFX | S 10b5-1 | 200 | $276.44 | $55,288 | 7,880 Direct | -2.48% | Disposed | -50.5% (price as of 2026-08-20) |
| Jan. 2, 2018 | TFX | S 10b5-1 | 200 | $248.96 | $49,792 | 7,880 Direct | -2.48% | Disposed | -45.1% (price as of 2026-08-20) |
| Dec. 1, 2017 | TFX | S 10b5-1 | 200 | $265.32 | $53,064 | 7,880 Direct | -2.48% | Disposed | -48.5% (price as of 2026-08-20) |
Showing latest 100 of 147 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 |
|---|---|---|---|---|---|---|---|
| May 9, 2025 | TFX | Stock Option / (Right to Buy) | Common Stock (2,226) | $125.11 | May 9, 2035 | 2,226 | Acquired |
| Feb. 20, 2025 | TFX | Stock Option / (Right to Buy) | Common Stock (2,674) | $121.00 | Feb. 25, 2025 | 2,674 | Disposed |
| May 7, 2024 | TFX | Stock Option / (Right to Buy) | Common Stock (1,349) | $201.52 | May 7, 2034 | 1,349 | Acquired |
| Dec. 13, 2023 | TFX | Stock Option / (Right to Buy) | Common Stock (3,021) | $101.12 | Feb. 26, 2024 | 3,021 | Disposed |
| May 9, 2023 | TFX | Stock Option / (Right to Buy) | Common Stock (1,076) | $251.99 | May 9, 2033 | 1,076 | Acquired |
| Jan. 27, 2023 | TFX | Stock Option / (Right to Buy) | Common Stock (3,014) | $78.50 | Feb. 26, 2023 | 3,014 | Disposed |
| May 3, 2022 | TFX | Stock Option / (Right to Buy) | Common Stock (969) | $284.85 | May 3, 2032 | 969 | Acquired |
| July 12, 2021 | TFX | Stock Option / (Right to Buy) | Common Stock (3,564) | $59.75 | Feb. 28, 2022 | 3,564 | Disposed |
| May 4, 2021 | TFX | Stock Option / (Right to Buy) | Common Stock (771) | $412.68 | May 4, 2031 | 771 | Acquired |
| Oct. 26, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| Sept. 25, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| Aug. 25, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| July 27, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| June 25, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| May 26, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| May 5, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (1,187) | $340.75 | May 5, 2030 | 1,187 | Acquired |
| April 27, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| March 25, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| Feb. 25, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| Jan. 27, 2020 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $58.25 | March 1, 2021 | 200 | Disposed |
| Dec. 26, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| Nov. 25, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| Oct. 25, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| Sept. 25, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| Aug. 26, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| July 25, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| June 25, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| May 28, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| May 7, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (976) | $294.33 | May 7, 2029 | 976 | Acquired |
| April 25, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| March 28, 2019 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $61.34 | March 1, 2020 | 200 | Disposed |
| May 16, 2018 | TFX | Stock Option / (Right to Buy) | Common Stock (1,131) | $259.10 | May 16, 2028 | 1,131 | Acquired |
| Feb. 1, 2018 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| Jan. 2, 2018 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| Dec. 1, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| Nov. 1, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| Oct. 2, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| Sept. 1, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| Aug. 1, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| July 3, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| June 1, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| May 15, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (200) | $46.12 | March 2, 2019 | 200 | Disposed |
| May 12, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (5,000) | $56.75 | May 2, 2018 | 5,000 | Disposed |
| May 9, 2017 | TFX | Stock Option / (Right to Buy) | Common Stock (1,410) | $194.40 | May 9, 2027 | 1,410 | Acquired |
| May 3, 2016 | TFX | Stock Option / (Right to Buy) | Common Stock (2,002) | $157.46 | May 3, 2026 | 2,002 | Acquired |
| Feb. 25, 2015 | TFX | Stock Option / (Right to Buy) | Common Stock (2,674) | $121.00 | Feb. 25, 2025 | 2,674 | Acquired |
| Feb. 26, 2014 | TFX | Stock Option / (Right to Buy) | Common Stock | $101.12 | Feb. 26, 2024 | 3,021 | Acquired |
| Feb. 26, 2014 | TFX | Stock Option / (Right to Buy) | Common Stock (2,498) | $101.12 | Feb. 26, 2024 | 2,498 | Acquired |
| Feb. 26, 2013 | TFX | Stock Option / (Right to Buy) | Common Stock (3,014) | $78.50 | Feb. 26, 2023 | 3,014 | Acquired |
| Feb. 28, 2012 | TFX | Stock Option (Right / to Buy) | Common Stock (3,564) | $59.75 | Feb. 28, 2022 | 3,564 | Acquired |
| March 1, 2011 | TFX | Stock Option / (Right to Buy) | Common Stock (2,000) | $58.25 | March 1, 2021 | 2,000 | Acquired |
| March 1, 2010 | TFX | Stock Option / (Right to Buy) | Common Stock (2,000) | $61.34 | March 1, 2020 | 2,000 | Acquired |
| March 2, 2009 | TFX | Stock Option / (Right to Buy) | Common Stock (2,000) | $46.12 | March 2, 2019 | 2,000 | Acquired |
| May 2, 2008 | TFX | Stock Option / (Right to Buy) | Common Stock (5,000) | $56.75 | May 2, 2018 | 5,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).