Insulet Corporation
PODD Healthcare · Medical DevicesDeep value.
Insulet's revenue jumped 30.7% in 2025; Q1 2026 cash fell after buybacks.
The four readings.
What the filing actually says.
The filings describe a company with strong reported growth and forensic scores that do not point to the most serious warning patterns. The Beneish M-Score is -2.754, which is below -1.78 and is labeled not in the elevated manipulation-risk zone. On this scale, a lower value means the pattern of accruals and receivables looks less like profiles associated with earnings manipulation. It is a screening tool, not proof either way. The Altman Z-Score (Z″ version) is 4.78, which is in the safe zone at 2.60 or above, meaning the scoring model sees low balance-sheet distress risk. The label does not mark Insulet as a bank or financial firm, so the score applies on its own terms. The Piotroski F-Score is 6 of 8 computable signals, a count of how many of nine-style checks on profitability, leverage, and efficiency were passed, using only the eight that could be computed here. The operating cash flow to net income ratio of 2.30 for 2025 means operating cash flow was more than twice reported net income. That is supportive, but part of the gap comes from non-cash charges such as depreciation and stock-based compensation, which were $26.2 million and $21.3 million in the first quarter of 2026. Business concentration is also worth noting. Omnipod 5 is the core platform, with FDA clearance for type 2 insulin users in August 2024, and its CGM integrations with Dexcom and Abbott depend on third-party sensors. The 10-Q also records the end of related-party distributor sales as of October 1, 2025, which changes how year-over-year comparisons look. Readers may want to look at the 10-K risk factors on third-party CGM partners and the Amgen relationship, because the risk-factor excerpt provided stops before the substance of that section.
Catalyst.Revenue growth is the clearest driver in the filings. Revenue reached $2.71 billion in 2025, up 30.7% from $2.07 billion in 2024, and operating income rose to $473.8 million from $308.9 million. The first quarter of 2026 continued the pattern: total revenue was $761.7 million versus $569.0 million a year earlier. The prior-year quarter included $148.5 million of related-party revenue, which ended after the distributor stopped being a related party on October 1, 2025, so the revenue line excluding that item rose from $420.5 million to $761.7 million. The MD&A text in the data is mostly table of contents and financial statements, so management's own explanation of these drivers is not included. The Item 1 business text points to the Omnipod 5 platform, available in 19 countries, and to pods produced for Amgen's Neulasta Onpro kit.
Hidden risk.The main tension is between reported earnings and cash. Net income fell to $247.1 million in 2025 from $418.3 million in 2024, even though operating income rose 53.4%, so the gap below operating income (interest, taxes, and other items) deserves a close look in the 10-K. In the first quarter of 2026, operating cash flow of $113.8 million was helped by a $71.4 million increase in accounts payable, which rose to $149.8 million from $75.0 million at year-end, while accrued expenses fell $69.3 million. Cash dropped to $480.4 million from $716.1 million after $300.0 million of share repurchases, and long-term debt, net, stood at $929.5 million. Readers may want to look at how much of the cash strength depends on payables timing.
What traders are betting.
The metric
Shares that traders have borrowed and sold, betting the price will fall, and not yet bought back. Brokers report the total to FINRA twice a month. Days to cover divides it by the shares that change hands on a typical day.
- Shares sold short
- 5.4M
- Change since Aug 31
- +20.5%
- Days to cover
- 3.1
What it tells us
A noticeable minority of traders is betting that PODD shares will fall.
Short sellers added to their bets: shares sold short grew 20.5% since the Aug 31 report.
At normal trading volume, short sellers would need about 3.1 days to buy back every borrowed share.
How investors use it
- Squeeze watching. Some aggressive traders seek out heavily shorted stocks, betting that good news will force short sellers to buy back shares and push the price higher.
- Hedging. Funds short one company to offset risk in another, often owning a stronger business and shorting a weaker one in the same industry.
- Timing. Chart-based traders pair rising short interest with price patterns, such as a break below a level where buyers used to step in, to decide when to enter or exit.
- Warning sign. Some owners treat a sharp rise in short interest as a red flag and respond by tightening stop-loss orders or holding smaller positions.
Annual report, quarterly report & proxy statement
The annual report (10-K), quarterly report (10-Q), proxy statement (DEF 14A) and current reports (8-K) Insulet filed in the last 12 months, each linked to the original document on SEC EDGAR.
- Sep 21, 20268-KCurrent reportItem 1.01: Signed a material agreement; Item 2.03: New debt or other financial obligationEDGAR →★ Curriculum-relevant
- Sep 16, 20268-KCurrent reportItem 5.02: Departure/appointment of officers or directorsEDGAR →★ Curriculum-relevant
- Sep 10, 20268-KCurrent reportItem 5.02: Departure/appointment of officers or directorsEDGAR →★ Curriculum-relevant
- Aug 5, 20268-KCurrent reportItem 2.02: Results of operations (earnings)0EDGAR →
- May 6, 20268-KCurrent report (2026-05-06)Item 2.02: Results of operations (earnings)0EDGAR →
- May 6, 202610-QQuarterly report (2026-03-31)Period: 2026-03-310EDGAR →
- Apr 29, 20268-KCurrent report (2026-04-29)Item 7.01: Regulation FD disclosure (investor materials)0EDGAR →
- Apr 6, 2026DEF 14AProxy statement (2026-05-20)0EDGAR →
- Mar 12, 20268-KCurrent report (2026-03-12)Item 7.01: Regulation FD disclosure (investor materials)0EDGAR →
- Feb 18, 202610-KAnnual report (2025-12-31)Period: 2025-12-310EDGAR →
If this case caught your eye
Financial Shenanigans
Schilit's framework for the seven shenanigan types is the standard reference for the kind of MD&A pattern-matching this site does.
View on Amazon →The Interpretation of Financial Statements
The original — and still the clearest — explanation of why working-capital trends matter more than headline earnings.
View on Amazon →Quality of Earnings
Out of print, expensive, worth it. The chapter on receivables-vs-revenue divergence applies almost word-for-word to most distressed filings.
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