Insulet Corporation
US ˙ NasdaqGS ˙ US45784P1012

SecurityPODD / Insulet Corporation
InstitutionBaillie Gifford & Co
Latest Disclosed Ownership2,029,492 shares
Latest Disclosed Value $ 425,868,601
Baillie Gifford & Co reports 0.92% decrease in ownership of PODD / Insulet Corporation

On May 8, 2026 - Baillie Gifford & Co filed a 13F-HR form disclosing ownership of 2,029,492 shares of Insulet Corporation (US:PODD) valued at $425,868,601 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 2,048,369 shares of Insulet Corporation. This represents a change in shares of -0.92% during the quarter. The current value of the position is $310,958,764 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-08 2026-03-31 13F Insulet COM 45784P101 2,029,492 -18,877 -0.92 425,869 -26.86 0.4350
2026-01-23 2025-12-31 13F Insulet COM 45784P101 2,048,369 -43,329 -2.07 582,228 -9.84 0.4838
2025-10-31 2025-09-30 13F Insulet COM 45784P101 2,091,698 -43,370 -2.03 645,770 -3.73 0.4784
2025-08-06 2025-06-30 13F Insulet COM 45784P101 2,135,068 -115,687 -5.14 670,796 13.49 0.5010
2025-05-07 2025-03-31 13F Insulet COM 45784P101 2,250,755 -104,928 -4.45 591,071 -3.89 0.5158
2025-01-31 2024-12-31 13F Insulet COM 45784P101 2,355,683 79,982 3.51 614,998 16.11 0.4726
2024-11-05 2024-09-30 13F Insulet COM 45784P101 2,275,701 389,639 20.66 529,669 39.16 0.3964
2024-07-25 2024-06-30 13F Insulet COM 45784P101 1,886,062 443,783 30.77 380,607 53.96 0.2965
2024-05-01 2024-03-31 13F Insulet COM 45784P101 1,442,279 229,520 18.93 247,207 -6.06 0.1923
2024-01-26 2023-12-31 13F Insulet COM 45784P101 1,212,759 1,212,759 263,144 0.2085
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.