Butterfly Network, Inc.
US ˙ NYSE ˙ US1241551027

SecurityBFLY / Butterfly Network, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership1,759,723 shares
Latest Disclosed Value $ 6,686,947
Sei Investments Co reports 54.08% increase in ownership of BFLY / Butterfly Network, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 1,759,723 shares of Butterfly Network, Inc. (US:BFLY) valued at $6,686,947 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 1,142,049 shares of Butterfly Network, Inc.. This represents a change in shares of 54.08% during the quarter. The current value of the position is $7,725,184 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)
2026-02-13 2025-12-31 13F BUTTERFLY NETWORK COM CL A 124155102 1,759,723 617,674 54.08 6,687 203.36
2025-11-13 2025-09-30 13F BUTTERFLY NETWORK COM CL A 124155102 1,142,049 50,376 4.61 2,204 0.96 0.0024
2025-08-14 2025-06-30 13F BUTTERFLY NETWORK COM CL A 124155102 1,091,673 70,233 6.88 2,183 -6.23 0.0025
2025-05-14 2025-03-31 13F/A-1 BUTTERFLY NETWORK COM CL A 124155102 1,021,440 1,021,440 2,329 0.0030
2024-11-12 2024-09-30 13F BUTTERFLY NETWORK COM CL A 124155102 0 -28,220 -100.00 0 -100.00
2024-08-13 2024-06-30 13F BUTTERFLY NETWORK COM CL A 124155102 28,220 0 0.00 24 -23.33 0.0000
2024-05-07 2024-03-31 13F BUTTERFLY NETWORK COM CL A 124155102 28,220 0 0.00 30 0.00 0.0000
2024-02-14 2023-12-31 13F BUTTERFLY NETWORK COM CL A 124155102 28,220 0 0.00 30 -9.09 0.0000
2023-11-14 2023-09-30 13F BUTTERFLY NETWORK COM CL A 124155102 28,220 28,220 33 0.0001
2021-11-12 2021-09-30 13F BUTTERFLY NETWORK COM CL A 124155102 0 -15,100 -100.00 0 -100.00
2021-08-06 2021-06-30 13F BUTTERFLY NETWORK COM CL A 124155102 15,100 15,100 219 0.0005
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.