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BFLY in the 13F filings

Butterfly Network Inc · CUSIP 124155102

Sector · Medical devices and instrumentsTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Surgical, medical and electromedical devices
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
27
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 3 listed it in both
Shares listed
40,332,805
combined, among listed positions
Reported value
$339m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 19 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +7,908,620.

Managers listing BFLY in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

27 of 27 holders

ActionFiling
Glenview Capital Management LLC14,335,055$121m2.20%Held014 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.6,392,827$54munder 0.1%Added+5,272,53614 Aug 2026 (the filing on sec.gov)
ARK Investment Management LLC5,085,456$43m0.28%Trimmed-142,04714 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)4,910,388$41munder 0.1%Added+4,470,37913 Aug 2026 (the filing on sec.gov)
Millennium Management LLC2,154,551$18munder 0.1%Trimmed-1,334,25414 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP1,373,045$12munder 0.1%Added+615,83914 Aug 2026 (the filing on sec.gov)
Voloridge Investment Management LLC1,077,227$9.1munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP761,861$6.4munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Invesco Ltd676,885$5.7munder 0.1%Added+270,68914 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp630,954$5.3munder 0.1%Added+199,42714 Aug 2026 (the filing on sec.gov)
Polen Capital Management LLC480,502$4.0munder 0.1%Added+74,2424 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP463,058$3.9munder 0.1%Trimmed-1,820,59113 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC450,401$3.8munder 0.1%Added+95,85014 Aug 2026 (the filing on sec.gov)
Man Group PLC191,191$1.6munder 0.1%Added+95,59314 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc175,183$1.5munder 0.1%Added+25,64514 Aug 2026 (the filing on sec.gov)
Acadian Asset Management LLC160,034$1.3munder 0.1%Added+139,33213 Aug 2026 (the filing on sec.gov)
Verition Fund Management LLC121,581$1.0munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Janus Henderson Group Ltd110,600$931kunder 0.1%Held014 Aug 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC106,308$895kunder 0.1%Trimmed-161,82114 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC93,822$790kunder 0.1%Newnew13 Aug 2026 (the filing on sec.gov)
MFS Investment Management90,945$766kunder 0.1%Newnew3 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP188,800$763kunder 0.1%Held014 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC78,148$658kunder 0.1%Added+17,56814 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP77,484$652kunder 0.1%Trimmed-162,99214 Aug 2026 (the filing on sec.gov)
Walleye Capital LLC66,239$558kunder 0.1%Newnew3 Aug 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (6)

Exited (3)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
2 in Q3 2024 to 5 in Q2 2026

Tracked managers listing it, at least.

0246202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
BFLY by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20201$19mn.a.n.a.
Q1 20213$191mn.a.n.a.
Q2 20213$215mn.a.n.a.
Q3 20213$148mn.a.n.a.
Q4 20213$98mn.a.n.a.
Q1 20223$71mn.a.n.a.
Q2 20223$45mn.a.n.a.
Q3 20223$86mn.a.n.a.
Q4 20223$43mn.a.n.a.
Q1 20232$33mn.a.n.a.
Q2 20232$48mn.a.n.a.
Q3 20232$24mn.a.n.a.
Q4 20232$23m10
Q1 20242$21m01
Q2 20242$16m01
Q3 20242$33m11
Q4 20243$54m11
Q1 20253$58m20
Q2 20254$50m11
Q3 20252$31m02
Q4 20253$80m167
Q1 20263$81m189
Q2 20265$183m198

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

BFLY and LLY →BFLY and JNJ →BFLY and VRTX →Choose a stock to compare with BFLY →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own BFLY, latest filings →Back to the 13F Explorer →