L3VLUP
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
31
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 5 listed it in both
Shares listed
38,873,278
combined, among listed positions
Reported value
$388m
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: 22 buyers (opened or added shares) and 12 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +9,553,714.

Managers listing BCRX 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.

31 of 31 holders

ActionFiling
Janus Henderson Group Ltd9,540,764$95munder 0.1%Added+632,25814 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP6,775,349$68munder 0.1%Added+382,72114 Aug 2026 (the filing on sec.gov)
Millennium Management LLC3,394,729$34munder 0.1%Added+3,207,00814 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC2,762,683$28munder 0.1%Added+2,140,07614 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC2,530,290$25munder 0.1%Added+1,753,30013 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC2,214,302$22munder 0.1%Added+1,774,16114 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC1,759,160$18munder 0.1%Added+740,4172 Sep 2026 (the filing on sec.gov)
Invesco Ltd1,233,783$12munder 0.1%Trimmed-75,03014 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP1,195,651$12munder 0.1%Trimmed-1,619,65314 Aug 2026 (the filing on sec.gov)
Moore Capital Management LP848,336$8.5m0.13%Newnew14 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)808,903$8.1munder 0.1%Added+175,77113 Aug 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP744,917$7.4munder 0.1%Added+554,85914 Aug 2026 (the filing on sec.gov)
Man Group PLC732,867$7.3munder 0.1%Trimmed-560,43314 Aug 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC710,816$7.1munder 0.1%Trimmed-626,87714 Aug 2026 (the filing on sec.gov)
Bridgewater Associates LP491,057$4.9munder 0.1%Trimmed-146,99714 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.408,529$4.1munder 0.1%Added+106,42814 Aug 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP400,000$4.0munder 0.1%Trimmed-90,36914 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP327,909$3.1munder 0.1%Added+64,24014 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc305,897$3.1munder 0.1%Added+74,90114 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP293,925$2.9munder 0.1%Added+195,04214 Aug 2026 (the filing on sec.gov)
Point72 Asset Management LP260,917$2.6munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Winton Group Ltd255,600$2.6m0.08%Added+202,3847 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP252,764$2.5munder 0.1%Added+6,28713 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp195,128$2.0munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC174,714$1.7munder 0.1%Added+134,94914 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.

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.
3 in Q3 2024 to 7 in Q2 2026

Tracked managers listing it, at least.

0246820142017201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
BCRX by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20131$692kn.a.n.a.
Q1 20141$632kn.a.n.a.
Q2 20142$34mn.a.n.a.
Q2 20153$165mn.a.n.a.
Q3 20152$114mn.a.n.a.
Q3 20161$714kn.a.n.a.
Q4 20161$828kn.a.n.a.
Q1 20173$28mn.a.n.a.
Q2 20171$718kn.a.n.a.
Q1 20181$2.7mn.a.n.a.
Q2 20181$64mn.a.n.a.
Q3 20182$95mn.a.n.a.
Q4 20181$99mn.a.n.a.
Q1 20191$100mn.a.n.a.
Q2 20191$8.5mn.a.n.a.
Q3 20193$20mn.a.n.a.
Q4 20193$39mn.a.n.a.
Q1 20204$15mn.a.n.a.
Q2 20204$53mn.a.n.a.
Q3 20202$4.8mn.a.n.a.
Q4 20203$33mn.a.n.a.
Q1 20211$31mn.a.n.a.
Q2 20213$88mn.a.n.a.
Q3 20216$119mn.a.n.a.
Q4 20214$79mn.a.n.a.
Q1 20225$83mn.a.n.a.
Q2 20224$60mn.a.n.a.
Q3 20227$85mn.a.n.a.
Q4 20228$111mn.a.n.a.
Q1 20236$59mn.a.n.a.
Q2 20234$53mn.a.n.a.
Q3 20234$44mn.a.n.a.
Q4 20232$15m11
Q1 20243$16m30
Q2 20243$30m12
Q3 20243$34m21
Q4 20242$23m20
Q1 20254$50m40
Q2 20257$170m61
Q3 20255$74m40
Q4 20256$138m1322
Q1 20266$170m1716
Q2 20267$187m2212

Compare with…

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

BCRX and GILD →BCRX and AMGN →BCRX and ARGX →Choose a stock to compare with BCRX →

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