Spinoff Tracker

Every US corporate spin-off, sourced from the filing that proves it.

3M CO MMM → Solventum Corporation SOLV

Distribution2024-04-01
Return+29.62%
Parent3M CO MMM
SpincoSolventum Corporation SOLV
StatusCompleted
StructureSpin-off A filing states a pro-rata distribution: holders receive shares automatically.
FocusFocus-increasing Parent and spinco operate in different industries — the class the research associates with stronger post-separation returns.
Ratio1 Solventum share for every 4 3M shares
Parent retains19.9%
Checked against EDGAR2026-08-22

Data trap

This deal breaks the usual timing pattern, and the break matters for anyone measuring a return. Most distributions take effect after the close, leaving the distribution date itself a when-issued session. Solventum's took effect at 3:30 a.m. Eastern, before the open, so April 1 was already a regular-way session and is the correct day-zero price. A rule that mechanically skips the distribution date would price this one a day late. 3M also retained 19.9 percent, so distributed shares are short of shares outstanding.

The restated filings have landed; this is kept as history.

Catalyst clock

  1. 2022-07-26Separation announced
  2. 2024-02-20Form 10 filed
  3. 2024-03-11Form 10 last amended
  4. 2024-03-13Form 10 effective
  5. 2024-03-18Record date
  6. 2024-03-26When-issued trading opens
  7. 2024-04-01Distribution
  8. 2024-05-09First standalone earnings
  9. Index inclusion announced

Performance since separation

Solventum Corporation since separation+29.62%
3M CO over the same window+90.34%
S&P 500 (SPY) over the same window+46.64%
Russell 2000 (IWM) over the same window+43.99%
Excess over the S&P 500-17.02%
Excess over the Russell 2000-14.37%

Measured from the first regular-way close on or after the distribution — 2024-04-01 at 69.10 — to 2026-08-21 at 89.57. Window: 2.4 years. Two benchmarks, because one is misleading: spin-offs are usually small companies, and across this period small caps lagged the S&P by several points a year on their own. Measured against the S&P alone, roughly a third of any shortfall is company size rather than the separation. Returns are arithmetic over end-of-day closing prices. Unlike every other figure on this page, they do not come from a filing.

Pre-distribution investor return

Parent, announcement to separation-24.64%
Combined (3M CO + Solventum Corporation), pre-distribution to now+127.06%
Combined excess over the S&P 500+80.67%
Combined excess over the Russell 2000+84.43%

Combined treats a pre-spin holding as 1 Solventum share for every 4 3M shares valued at the parent's last close before regular post-spin trading resumed — 2024-03-28 at 88.68 — against that same basket today. That baseline is a practical proxy, not an attempt to isolate exactly how much value the separation transferred: for a large parent and a small spinco, ordinary day-to-day price noise can be bigger than the transfer itself. Run-up measures only the parent's own price, from the announcement date to that same baseline — how far the market had already moved before the separation's mechanics ever happened.

Filings

Every fact on this page comes from one of these.

Notes

3M's separation of its health care business, one of the largest health-care spin-offs on record. Classified focus-increasing despite parent and spinco sharing a four-digit SIC: 3M's remaining business is industrial, safety and consumer products, and the SIC code describes its medical segment rather than the company that stayed.