L3VLUP
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 1 listed it in both
Shares listed
53,315,504
combined, among listed positions
Reported value
$187m
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: 20 buyers (opened or added shares) and 6 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +20,650,729.

Managers listing IOVA in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

24 of 24 holders

ActionFiling
Two Sigma Investments LP13,687,433$48munder 0.1%Added+9,289,44415 May 2026 (the filing on sec.gov)
Millennium Management LLC9,414,292$33munder 0.1%Added+2,828,76015 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.8,016,353$28munder 0.1%Added+4,186,55815 May 2026 (the filing on sec.gov)
Jane Street Group LLC4,173,886$15munder 0.1%Added+590,07612 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc3,166,861$11munder 0.1%Added+1,975,03315 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP2,996,743$11munder 0.1%Trimmed-1,951,87115 May 2026 (the filing on sec.gov)
Citadel Advisors LLC2,611,345$9.2munder 0.1%Trimmed-531,74615 May 2026 (the filing on sec.gov)
Marshall Wace LLP2,355,612$8.3munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Invesco Ltd1,422,317$5.0munder 0.1%Added+170,65212 May 2026 (the filing on sec.gov)
Woodline Partners LP1,291,984$4.5munder 0.1%Added+724,30415 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC1,032,168$3.6munder 0.1%Added+1,007,16715 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC1,022,780$3.6munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
AQR Capital Management LLC624,168$2.2munder 0.1%Added+513,57715 May 2026 (the filing on sec.gov)
Winton Group Ltd337,657$1.2munder 0.1%Newnew12 May 2026 (the filing on sec.gov)
AllianceBernstein LP321,650$878kunder 0.1%Added+62,76015 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC248,764$873kunder 0.1%Added+180,72615 May 2026 (the filing on sec.gov)
Tudor Investment Corp216,004$758kunder 0.1%Added+36,51015 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd141,672$498kunder 0.1%Added+50,33118 May 2026 (the filing on sec.gov)
Man Group PLC73,082$257kunder 0.1%Added+18,56115 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)49,301$173kunder 0.1%Added+18,22815 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC46,659$164kunder 0.1%Added+7,58727 Oct 2026 (the filing on sec.gov)
Walleye Capital LLC30,356$107kunder 0.1%Trimmed-792,39813 May 2026 (the filing on sec.gov)
Farallon Capital Management LLC26,000$91kunder 0.1%Held015 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC8,417$29kunder 0.1%Newnew13 May 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2025 to Q1 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.
4 in Q3 2024 to 1 in Q2 2026

Tracked managers listing it, at least.

035810201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
IOVA by quarter
QuarterHoldersReported valueBuyersSellers
Q3 20171$6.6mn.a.n.a.
Q4 20171$15mn.a.n.a.
Q1 20184$72mn.a.n.a.
Q2 20183$59mn.a.n.a.
Q3 20183$59mn.a.n.a.
Q4 20186$73mn.a.n.a.
Q1 20195$70mn.a.n.a.
Q2 20195$198mn.a.n.a.
Q3 20196$166mn.a.n.a.
Q4 20197$333mn.a.n.a.
Q1 20209$610mn.a.n.a.
Q2 20208$624mn.a.n.a.
Q3 20209$822mn.a.n.a.
Q4 20209$1.8bnn.a.n.a.
Q1 20218$1.2bnn.a.n.a.
Q2 20216$917mn.a.n.a.
Q3 20217$753mn.a.n.a.
Q4 20218$517mn.a.n.a.
Q1 20228$423mn.a.n.a.
Q2 20227$121mn.a.n.a.
Q3 20228$100mn.a.n.a.
Q4 20226$43mn.a.n.a.
Q1 20236$102mn.a.n.a.
Q2 20234$102mn.a.n.a.
Q3 20234$35mn.a.n.a.
Q4 20237$105m34
Q1 20245$154m23
Q2 20244$98m12
Q3 20244$93m12
Q4 20243$52m11
Q1 20253$19m11
Q2 20251$45k01
Q3 20251$56k00
Q4 20251$71k155
Q1 20262$1.3m206
Q2 20261$79m1513

Compare with…

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

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

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