IPO date
March 17, 1980
Total splits
8
Cumulative multiple
34.172
Split likelihood
Watch
Stock splits history for Thermo Fisher Scientific (TMO) from 1973 to 1996
Cumulative multiple is the running product of split factors from the oldest row through each date.
| Type | Ratio | Pre-split | Post-split | |||
|---|---|---|---|---|---|---|
| June 6, 1996 | Stock split | 3:2 | x1.5 | x34.1719 | $56.64 | $37.73 |
| May 25, 1995 | Stock split | 3:2 | x1.5 | x22.7813 | $48.15 | $32.03 |
| October 29, 1993 | Stock split | 3:2 | x1.5 | x15.1875 | $52.68 | $35.26 |
| November 3, 1986 | Stock split | 3:2 | x1.5 | x10.125 | $23.95 | $16.03 |
| September 17, 1985 | Stock split | 3:2 | x1.5 | x6.75 | $27.41 | $18.07 |
| January 4, 1984 | Stock split | 3:2 | x1.5 | x4.5 | $27.68 | $18.30 |
| July 10, 1979 | Stock split | 3:2 | x1.5 | x3 | — | $20.16 |
| November 19, 1973 | Stock split | 2:1 | x2 | x2 | — | $20.16 |
- June 6, 1996x34.1719
- May 25, 1995x22.7813
- October 29, 1993x15.1875
- November 3, 1986x10.125
- September 17, 1985x6.75
- January 4, 1984x4.5
- July 10, 1979x3
- November 19, 1973x2
Pre-split price is the final regular-session close on a trading day strictly before the split calendar date. Post-split price is the first session open on or after that date. Both values come from unadjusted end-of-day bars for the company's primary listing.
The Type column reflects the data feed's event category (for example stock split vs stock dividend). When the feed labels a generic split but the ratio is reverse (e.g. 1:10), we show reverse stock split. Optional editorial context for a row appears next to the split ratio as an info icon (hover or keyboard focus on desktop; tap on mobile). The same text is listed under Row notes when that block is expanded.
Wondering why some rows show ratios like 51:50 or 2000:1973? Read: stock split ratios explained → How the cumulative column is computed: cumulative split multiplier explained. For ratios driven by spin-offs, see spin-offs explained. Or read the methodology for how prices and cumulative multiples are computed.
Split likelihood score for Thermo Fisher Scientific (TMO)
Computed through June 13, 2026.
| Factor | Detail | Contribution |
|---|---|---|
| Absolute price | Price $469.34 → 22% of the price band | +9 |
| Personal split threshold | Price is 955% of the company's typical pre-split price ($49.15) | +28 |
| Split track record | 8 prior splits on record | +20 |
| Proximity to 52-week high | Price is 73% of the 52-week high | +2 |
| Timing | Last split over 20 years ago | ×0.70 |
An educational, rule-based score — not a prediction of any split and not investment advice. Splits are at the sole discretion of a company's board. How it's calculated · Will a stock split?
Stock splits — Healthcare
Healthcare peers of Thermo Fisher Scientific Inc. (TMO), sorted by number of splits.
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