L3VLUP
Quarter end
30 Sep 2025
the date the book describes
Filed
14 Nov 2025
latest of these filings; the earliest 13 Nov 2025
Managers listing it
6
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q2 2025 and Q3 2025; 4 listed it in both
Shares listed
13,015,984
combined, among listed positions
Reported value
$737m
combined, at the quarter end

Among the 95 comparable managers: 2 buyers (opened or added shares) and 3 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing KYMR in Q3 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

6 of 6 holders

ActionFiling
Wellington Management Group LLP5,195,691$294m0.05%Trimmed-176,37014 Nov 2025 (the filing on sec.gov)
T. Rowe Price Associates Inc5,097,378$289munder 0.1%Trimmed-1,761,82414 Nov 2025 (the filing on sec.gov)
Capital Research Global Investors1,262,182$71munder 0.1%Held013 Nov 2025 (the filing on sec.gov)
Holocene Advisors LP840,333$48m0.11%Newnew14 Nov 2025 (the filing on sec.gov)
Two Sigma Advisers LP372,400$21munder 0.1%Addedn.a.14 Nov 2025 (the filing on sec.gov)
Woodline Partners LP248,000$14m0.07%Trimmed-250,11114 Nov 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2025 to Q3 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.

Exited (0)

No exit shown by a manager’s own filing.

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.
5 in Q3 2024 to 8 in Q2 2026

Tracked managers listing it, at least.

0246820222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
KYMR by quarter
QuarterHoldersReported valueBuyersSellers
Q3 20202$8.3mn.a.n.a.
Q4 20201$11mn.a.n.a.
Q2 20211$1.8mn.a.n.a.
Q3 20211$7.6mn.a.n.a.
Q4 20211$171mn.a.n.a.
Q1 20222$30mn.a.n.a.
Q2 20221$2.0mn.a.n.a.
Q3 20221$2.2mn.a.n.a.
Q4 20223$226mn.a.n.a.
Q1 20233$268mn.a.n.a.
Q2 20231$2.5mn.a.n.a.
Q3 20231$1.4mn.a.n.a.
Q4 20233$150m21
Q1 20246$496m42
Q2 20244$343m31
Q3 20245$582m32
Q4 20246$536m51
Q1 20254$372m23
Q2 20255$615m32
Q3 20256$737m23
Q4 20257$1.7bn1512
Q1 20268$2.1bn1215
Q2 20268$3.0bn1213

Compare with…

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

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

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