Yuh-Geng Tsay
CIK 1434774 · View on SEC EDGAR ↗
First SEC filing: May 19, 2008 · Latest: May 19, 2008
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Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 26, 2010 | TMO | F | 1,311 | $48.77 | $63,937 | 110,369 Direct | -1.17% | Disposed | 1172.3% (price as of 2026-08-21) |
| Feb. 25, 2010 | TMO | F | 1,282 | $49.28 | $63,177 | 111,680 Direct | -1.13% | Disposed | 1159.1% (price as of 2026-08-21) |
| Feb. 25, 2010 | TMO | A | 10,372 | — | — | 112,962 Direct | +10.11% | Acquired | (price as of 2026-08-21) |
| March 5, 2009 | TMO | F | 525 | $34.56 | $18,144 | 102,590 Direct | -0.51% | Disposed | 1695.4% (price as of 2026-08-21) |
| Feb. 26, 2009 | TMO | A | 49,700 | — | — | 49,700 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 26, 2009 | TMO | F | 719 | $36.10 | $25,956 | 103,115 Direct | -0.69% | Disposed | 1618.8% (price as of 2026-08-21) |
| Feb. 26, 2009 | TMO | A | 6,028 | — | — | 103,834 Direct | +6.16% | Acquired | (price as of 2026-08-21) |
| Feb. 26, 2009 | TMO | A | 11,000 | — | — | 97,806 Direct | +12.67% | Acquired | (price as of 2026-08-21) |
| Jan. 13, 2009 | TMO | F | 4,745 | $37.08 | $175,945 | 86,806 Direct | -5.18% | Disposed | 1573.4% (price as of 2026-08-21) |
| May 15, 2008 | TMO | A | 25,000 | — | — | 25,000 Direct | — | Acquired | (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| Feb. 26, 2009 | TMO | Stock Option (Right to Buy) | Common Stock (49,700) | $36.10 | Feb. 26, 2016 | 49,700 | Acquired |
| May 15, 2008 | TMO | Stock Option (Right to Buy) | Common Stock (25,000) | $57.58 | May 15, 2015 | 25,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| May 19, 2008 | TMO | Common Stock | 91,551 | Direct |
| May 19, 2008 | TMO | Stock Option (Right to Buy)→ Common Stock (33,600) | 33,600 | Direct |
| May 19, 2008 | TMO | Stock Option (Right to Buy)→ Common Stock (33,600) | 33,600 | Direct |
| May 19, 2008 | TMO | Stock Option (Right to Buy)→ Common Stock (56,000) | 56,000 | Direct |
| May 19, 2008 | TMO | Stock Option (Right to Buy)→ Common Stock (54,200) | 54,200 | Direct |
| May 19, 2008 | TMO | Stock Option (Right to Buy)→ Common Stock (90,800) | 90,800 | Direct |