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BBNX in the 13F filings

Beta Bionics Inc · CUSIP 08659B102

Sector · Medical devices and instrumentsTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Surgical, medical and electromedical devices
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025
Quarter end
31 Dec 2025
the date the book describes
Filed
19 Feb 2026
latest of these filings; the earliest 4 Feb 2026
Managers listing it
27
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 3 listed it in both
Shares listed
10,147,987
combined, among listed positions
Reported value
$309m
combined, at the quarter end

Among the 92 comparable managers: 24 buyers (opened or added shares) and 6 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -2,125,198.

Managers listing BBNX in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, 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
Farallon Capital Management LLC4,313,920$131m0.57%Held017 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP987,351$30munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Millennium Management LLC945,461$29munder 0.1%Added+148,49717 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC646,539$20m0.06%Added+55,35213 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc532,749$16munder 0.1%Added+45,09117 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP410,603$13munder 0.1%Added+246,83917 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC320,880$9.8munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Tudor Investment Corp259,632$7.9munder 0.1%Added+221,03917 Feb 2026 (the filing on sec.gov)
First Eagle Investment Management LLC253,702$7.7munder 0.1%Added+20,5004 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP227,956$6.9munder 0.1%Trimmed-366,94613 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC151,647$4.6munder 0.1%Added+128,30117 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC140,592$4.3munder 0.1%Added+105,97812 Feb 2026 (the filing on sec.gov)
Freestone Grove Partners LP138,138$4.2munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP137,200$4.2munder 0.1%Added+107,00017 Feb 2026 (the filing on sec.gov)
Invesco Ltd117,360$3.6munder 0.1%Added+68,64019 Feb 2026 (the filing on sec.gov)
Quantbot Technologies LP89,405$2.7m0.09%Added+75,01110 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC84,973$2.6munder 0.1%Added+82,45817 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC83,421$2.5munder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC82,862$2.5munder 0.1%Added+35,56313 Feb 2026 (the filing on sec.gov)
Holocene Advisors LP71,777$2.2munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC50,405$1.5munder 0.1%Trimmed-1,60517 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP35,400$1.1munder 0.1%Added+10,90017 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)17,111$521kunder 0.1%Added+30117 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP14,833$452kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.13,142$400kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, 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 (9)

Exited (4)

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.
4 in Q1 2025 to 1 in Q2 2026

Tracked managers listing it, at least.

0246Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
BBNX by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20254$55m40
Q2 20253$73m13
Q3 20253$102m31
Q4 20256$168m246
Q1 20262$39m521
Q2 20261$9.3m1112

Compare with…

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

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

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 BBNX, latest filings →Back to the 13F Explorer →