Perrigo
pharmaceutical company
Perrigo Company plc is an American Irish-registered manufacturer of private label over-the-counter pharmaceuticals, and while 70% of Perrigo's net sales are from the U.S. healthcare system, Perrigo is legally headquartered in Ireland for tax purposes, which accounts for 0.60% of net sales. In 2013, Perrigo completed the sixth-largest US corporate tax inversion in history when it reregistered its tax status to Ireland to avoid U.S. corporate taxes. Perrigo maintains its corporate headquarters in Grand Rapids, Michigan, within Michigan State University's Grand Rapids Innovation Park.
Perrigo engages in the acquisition (for repricing), manufacture, and sale of consumer healthcare products, generic prescription drugs, and active pharmaceutical ingredients (APIs), primarily in the United States, from its base in Ireland. On 21 December 2018, Perrigo suffered its biggest one-day share price fall in its history after the Irish Revenue Commissioners issued a tax claim against Perrigo that equated to half of its market value.
History
L. Perrigo Company was founded in 1887 in Allegan, Michigan, by Luther and Charles Perrigo, who ran a general store.
In 1991 Perrigo had an initial public offering on Nasdaq.
In March 2005 the firm acquired Agis Industries Limited (traded as AGIS at the Tel Aviv Stock Exchange), an Israel-based generic pharmaceuticals company in an $850 million transaction. Agis was founded in 1983 by Mori Arkin, who developed his father's small drug import business into a multinational generic pharmaceutical company. As a result of the acquisition, Arkin owned 9% of Perrigo, and was appointed as Vice Chairman of the company.
This brief starts where responsible research should: with the source description of “Perrigo” as pharmaceutical company. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the history & society register because the source frames it as pharmaceutical company. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The record creator and administrative purpose are central evidence, because official documentation reflects both action and institutional priorities. The source revision retrieved here is dated Aug 9, 2026. The linked authority identifier is Q2916497. 1 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2013, 2018, 1887 and 1991.
Official terminology may obscure informal participation, dissent or communities documented only indirectly. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.
- Event chronology
- Institutional context
- Locating named record creators
Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.
Three-step research path
- Establish the record: confirm the title “Perrigo”, its source revision and the description used here.
- Expand the search: follow Perrigo primary sources, Perrigo archive and Perrigo research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Perrigo”?
- Which voices are present, absent or mediated by the institution?
- Who created the surviving record, and for what administrative purpose?
Search terms from this dossier
This entry incorporates text from “Perrigo” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.