Robert Leasure, Jr., the Company's President and Chief Executive Officer, commented, “Our strong fourth quarter fiscal 2021 financial results capped off a transformational year for Inotiv, reflecting our success expanding existing operations and services, starting up new services, and acquiring strategic assets. In fiscal 2021, we invested in state-of-the-art DMPK and cell and molecular biology laboratories at our St. Louis facility and additional vivarium capacity at our West Lafayette facility. We also developed new in-house capabilities through internal startups in the areas of SEND reporting, cardio safety pharmacology, clinical pathology, biotherapeutics, histopathology for devices, and genetic toxicology. And we consummated the strategic acquisitions of HistoTox Labs, Bolder BioPATH, and Gateway Pharmacology, as well as critical genetic toxicology assets and modern cell and molecular biology instrumentation. Finally, we made significant growth-enabling investments in G&A, including in our people, infrastructure, and systems.”
Mr. Leasure concluded, “We continued our momentum after quarter-end, completing the acquisitions of Plato BioPharma, a complementary in vivo pharmacology platform, and Envigo, a leading global provider of research models and services. Envigo adds meaningful scale, expands our geographic footprint, diversifies our customer base, and creates significant cross-selling opportunities. Reported earnings this quarter and fiscal year were impacted by our strategic investments in internal startup costs, acquisition-related expenses, and recruiting and retention-related expenses. We believe that the investments we are making today will drive future growth and deliver higher operating margins and improved service for our clients. Over the longer term, we are targeting organic revenue growth in the high-single to low-double digits and EBITDA margins in the range of 18% to 22%. In the near-term, we are optimistic for continued strong revenue growth based on our quarter-end backlog of $81.4 million as well as anticipated contributions from recent acquisitions, internal expansions and new services.”
Q4 FY 2021 Review
Revenue increased 90.7% to $30.1 million, compared with $15.8 million in Q4 FY 2020, which was primarily driven by our service segment. Service segment revenue for Q4 FY 2021 increased 93.3% to $29.0 million, from $15.0 million in the prior year period. The increase in Service revenue was due to internal growth year over year as well as incremental revenue from the acquisitions of HistoTox Labs, Bolder BioPATH and Gateway Pharmacology.
Cost of Service revenue as a percentage of Service revenue decreased to 65.8% in Q4 FY 2021, from 71.1% in the prior year period, reflecting greater utilization of recently expanded capacity.
Product segment revenue increased 40.9% to $1.1 million in Q4 FY 2021, from $0.8 million in the prior year period.
Cost of Product revenue as a percentage of Product revenue increased to 64.4% in Q4 FY 2021 from 63.4 % in the prior year period, due to mix of products sold.
Operating expenses increased by 128.8%, or $7.7 million, as the Company continued to build the infrastructure for growth, which included additional headcount, recruiting, relocation expense, sales commissions, non-cash stock compensation expense, costs associated with acquisitions and investments in building out new service offerings. Additionally, there was an increase in selling expenses due to an increase in travel cost as our sales and marketing teams have traveled more as the COVID-19 pandemic eases and an increase in commissions due to higher sales awards. During Q4 FY 2021, we continued investing in additional service offerings that we brought in house such as laboratory solutions, medical device pathology, biotherapeutics and genetic toxicology.