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Biogen8-K: Restructuring charge

Biogen completes $5.3B acquisition of Apellis, initiating major post-merger integration.

What happened

The acquisition of Apellis for approximately $5.3 billion necessitates a massive integration of all business functions, including IT systems, supply chains, R&D, and sales operations.

Source

SEC EDGARMay 14, 2026

Current report (Form 8-K)

Biogen 8-K

Filing excerpt

The aggregate amount to be paid by Purchaser in the Offer and the Merger is approximately $5.3 billion, excluding related fees and expenses and, for the avoidance of doubt, any amounts that may become payable pursuant to the CVRs.

sec.gov/Archives/edgar/data/875045/000119312526222908/d109852d8k.htmRead the full source

Other signals in this filing (4)

Extracted by Autobound

From the Signal API record
Signal
8-K: Restructuring charge

What this signalsFilings often name leadership changes, deals and spending plans.

Form
8-K
Filed
May 14, 2026

The full record

From the Signal API record

Numbers

Dollar figure
$5.3B (Aggregate payment for the acquisition of Apellis Pharmaceuticals)

Details

CIK
875045
Accession number
0001193125-26-222908
Timeframe
Immediate
Filing year
2026
Why it matters
Vendor review likely
Signal category
Financial

Topics and mentions

Vendors

  • Equiniti Trust Company
  • LLC

Vendors named

  • Equiniti Trust Company, LLC

Extraction

Confidence
High
Relevance
100%
Sentiment
Neutral
Detected
May 19, 2026
signal_type
sec-8k
signal_subtype
restructuringCharge

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The API returns more than this page shows

This page shows a preview. The full sec-8k record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/390c32d8-e13e-4ca5-a28a-ee7823825645 returns this record as JSON. POST /v1/companies/enrich returns every signal for biogen.com.

{
  "signal_id": "390c32d8-e13e-4ca5-a28a-ee7823825645",
  "signal_type": "sec-8k",
  "signal_subtype": "restructuringCharge",
  "detected_at": "2026-05-19T10:14:18.503+00:00",
  "company": {
    "name": "Biogen",
    "domain": "biogen.com"
  },
  "data": {
    "detail": "The acquisition of Apellis for approximately $5.3 billion necessitates a massive integration of all business functions, including IT systems, supply chains, R&D, and sales operations. This creates urgent needs for consulting, software, and services to manage the complexity and achieve synergy targets.",
    "metrics": {
      "timeframe": "immediate",
      "dollar_context": "Aggregate payment for the acquisition of Apellis Pharmaceuticals",
      "dollar_millions": 5300
    },
    "summary": "Biogen completes $5.3B acquisition of Apellis, initiating major post-merger integration.",
    "excerpts": "The aggregate amount to be paid by Purchaser in the Offer and the Merger is approximately $5.3 billion, excluding related fees and expenses and, for the avoidance of doubt, any amounts that may become payable pursuant to the CVRs.",
    "relevance": 1,
    "sentiment": "neutral",
    "confidence": "high",
    "source_url": "https://www.sec.gov/Archives/edgar/data/875045/000119312526222908/d109852d8k.htm",
    "filing_date": "2026-05-14",
    "filing_year": 2026,
    "sales_relevance": "Vendor review likely",
    "signal_category": "financial",
    "vendors_mentioned": [
      "Equiniti Trust Company, LLC"
    ]
  }
}

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