Somnigroup completed its all-stock acquisition of Leggett & Platt on August 26, 2026, but the former Leggett shareholders' approximately 9% interest is not 9% ownership of Leggett. Their Leggett public shares were canceled and exchanged at 0.1455 Somnigroup share per Leggett share. Leggett survived the merger and became wholly owned in the Somnigroup structure, while $1.5 billion of Leggett notes remained outstanding at the subsidiary.
The closing also changed governance and management on separate tracks. Eight named Leggett directors ceased serving on its board. Somnigroup separately appointed Tyson Hagale as Leggett's president, reporting to Leggett CEO Karl Glassman. The reviewed filings do not publish Leggett's complete replacement board or establish a reporting line from Hagale directly to Somnigroup chairman and CEO Scott Thompson.
The question this map answers
How did the closing change shareholder ownership, legal control of Leggett, debt placement, equity awards, board membership, and operating leadership without collapsing all six into one “combined company” line?
MyMap observed the two closing Forms 8-K and Somnigroup's two announcement exhibits at 4:09 AM Pacific Time on August 27. Both companies identify August 26 as the closing and effective date. Somnigroup's filing was accepted at 9:41:36 AM Pacific Time; Leggett's was accepted at 10:27:01 AM Pacific Time.
The source set establishes legal and disclosed economic states at closing. It does not establish later integration results, realized synergies, current trading values, future debt repayment, or how the new reporting segment will perform.
One merger moved value across two ownership layers
Before closing, public investors held Leggett common stock and Somnigroup owned Sparrow Unity Corporation, the merger subsidiary. At the effective time, Sparrow Unity merged into Leggett and disappeared; Leggett survived. Each eligible Leggett common share converted automatically into the right to receive 0.1455 Somnigroup common share, with cash instead of a fractional share.
Somnigroup's announcement estimates that former Leggett shareholders own approximately 9% of the combined company on a fully diluted basis. That is an investor relationship at the Somnigroup parent level. It is not a direct public float in Leggett after closing: Leggett asked the New York Stock Exchange to suspend and withdraw its old shares, plans to terminate their registration, and says those holders ceased to have the former security rights.
At the legal-entity layer, Leggett continued as the surviving corporation and became wholly owned. There is one source-label conflict worth preserving rather than smoothing over: Somnigroup's 8-K calls Leggett a direct wholly owned subsidiary after the merger, while Leggett's 8-K calls itself a wholly owned indirect subsidiary. Both establish full ownership; the reviewed closing filings do not reconcile the direct-versus-indirect label. The map therefore shows a 100% ownership path and marks its intermediate legal level as unresolved.
| Relationship | Confirmed result | What it does not mean |
|---|---|---|
| merger consideration | 0.1455 Somnigroup share for each eligible Leggett share | a fixed cash value at a later date |
| former-holder interest | approximately 9% of Somnigroup, fully diluted | 9% direct ownership of Leggett |
| subsidiary ownership | Leggett is wholly owned after surviving the merger | every legal entity was merged into one company |
| reporting segment | Leggett results will be presented as a new segment | the segment is the same thing as a legal subsidiary |
Equity awards did not all take the same exit
The filings disclose six award treatments. Restricted Leggett shares vested and converted into the merger consideration. Options were assumed and converted into Somnigroup options, with share counts and exercise prices adjusted by the exchange ratio. Most restricted stock units were assumed and converted into Somnigroup restricted stock units.
Unfinished performance stock units became Somnigroup restricted stock units using maximum performance for the converted share count. Performance units whose performance period had ended converted based on actual performance achieved. Stock units held under two deferred-compensation programs changed again: they became notional cash investments based on Leggett's average closing price for the five trading days before closing and will be reinvested among options determined by Somnigroup's board, following participant directions.
Converted options or restricted stock units held by someone no longer employed by or serving Leggett at the effective time are to settle only in cash, based on Somnigroup's closing price on the later exercise or settlement date. The transaction should therefore not be mapped as “all equity becomes Somnigroup stock.” Award type, performance state, service relationship, and deferred-plan status determine the edge.
The debt lane stayed attached to Leggett
Leggett terminated its revolving credit agreement and repaid approximately $277,000 outstanding under it. It also terminated its commercial-paper program, which had no commercial paper outstanding at closing. Those facilities ended.
Three other obligations did not disappear. Somnigroup's 8-K says $1.5 billion aggregate principal amount of Leggett's 3.50% senior notes due 2027, 4.40% notes due 2029, and 3.50% notes due 2051 remain outstanding under their original indentures and terms. The closing announcement's approximately $2.3 billion transaction value is expressly inclusive of Leggett's existing indebtedness.
That produces two different debt edges: terminated short-term facilities and continuing Leggett notes. The announcement also says the deal reduced Somnigroup net leverage to approximately 2.8 times adjusted EBITDA at close, but that metric is a company calculation, not evidence that the notes moved to the Somnigroup parent or were refinanced.
Board exit and operating leadership are separate states
Leggett's filing names eight directors who ceased to serve on the surviving corporation's board at closing: Karl Glassman, Angela Barbee, Robert Brunner, Mary Campbell, Joseph McClanathan Sr., Srikanth Padmanabhan, Jai Shah, and Phoebe Wood. It does not name the complete replacement board in Item 5.02. A defensible org diff can remove the eight confirmed seats but should leave the post-closing board unknown until a controlling source identifies it.
Somnigroup's separate leadership announcement appoints Tyson Hagale as president of Leggett, effective immediately, with oversight responsibility for all of Leggett. It explicitly says he reports to Karl Glassman, Leggett's CEO. Scott Thompson remains Somnigroup's chairman and CEO, but the announcement quotes Thompson; it does not say Hagale reports to him. Quoted authority is not a reporting line.
Somnigroup says Leggett's results will become a new reporting segment and that sales from Leggett to other Somnigroup reporting segments will be eliminated in consolidation, without affecting reported Leggett segment profit. That accounting treatment helps readers understand the vertical relationship, but it does not establish which operating teams were reorganized on day one.
Confirmed, derived, and still unknown
The controlling sources confirm the August 26 closing; the merger-subsidiary sequence; the exchange ratio; the approximately 9% fully diluted estimate; Leggett's wholly owned status; delisting steps; award treatments; continuing $1.5 billion notes; terminated credit and commercial-paper facilities; eight board departures; Hagale's appointment and reporting line; and the planned Leggett reporting segment.
MyMap derives the two-layer ownership model, the separation of continuing and terminated debt, the award decision tree, and the warning that parent-level former-holder interest is not subsidiary-level ownership. The visual's unresolved direct-versus-indirect marker is a reconciliation boundary, not a guess about the missing intermediate entity.
The sources leave unknown the exact post-closing legal chain between Somnigroup and Leggett, Leggett's complete replacement board, future conversions or settlements of individual awards, future note repayment or refinancing, the operating integration sequence, realized savings, later ownership percentages, and whether management relationships change after the observation window.
Reproducible mapping method and next step
Create separate records for each legal entity, security, award class, debt instrument, board seat, management role, and reporting segment. Use source verbs rather than generic arrows: merges into, survives, converts, owns, remains outstanding, terminates, ceases, appoints, reports to, or consolidates.
Then run four checks:
- Level check: place former Leggett shareholders at Somnigroup, not at the wholly owned Leggett subsidiary.
- Basis check: keep “approximately” and “fully diluted” beside the 9% estimate.
- Instrument check: map credit, commercial paper, senior notes, options, restricted units, performance units, and deferred-plan units separately.
- Source-conflict check: retain both filed direct/indirect labels until a later corporate record identifies the legal chain.
The practical next step is to reconcile Somnigroup's next organization filing and segment disclosure against this closing snapshot. Add a post-closing board only when a governance source names it, update the ownership path only when the legal chain is visible, and keep forecasts such as $75 million of annual run-rate synergies labeled as expectations until reported results supply evidence.