NKTR in the 13F filings

Nektar Therapeutics · CUSIP 640268306

Sector · Pharmaceuticals and biotechnology Theme · Healthcare: biopharma and medtech· L3VLUP-defined Theme · Pharmaceutical preparations

Quarter

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025

Quarter end: 30 Jun 2026; the date the book describes
Filed: 2 Sep 2026; latest of these filings; the earliest 3 Aug 2026
Managers listing it: 19; at least, of 95 tracked, among listed positions
Comparable managers: 91; filed both Q1 2026 and Q2 2026; 4 listed it in both
Shares listed: 7,992,814; combined, among listed positions
Reported value: $558m; 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: 13 buyers (opened or added shares) and 17 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -22,382.

Managers listing NKTR 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.

ActionShare of book at least

19 of 19 holders

				Action		Filing
Fidelity (FMR LLC)	5,067,920	$354m	under 0.1%	Added	+764,732	13 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP	1,202,004	$84m	0.06%	Added	+271,263	14 Aug 2026 (the filing on sec.gov)
Millennium Management LLC	478,120	$33m	under 0.1%	Added	+73,843	14 Aug 2026 (the filing on sec.gov)
Woodline Partners LP	470,875	$33m	0.10%	Added	+55,540	14 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP	278,977	$19m	under 0.1%	Added	+29,887	14 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC	159,747	$11m	under 0.1%	Trimmed	-353,784	2 Sep 2026 (the filing on sec.gov)
Invesco Ltd	79,856	$5.6m	under 0.1%	Trimmed	-487,602	14 Aug 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP	58,507	$4.1m	under 0.1%	Added	+38,050	14 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc	45,680	$3.2m	under 0.1%	Added	+34,404	14 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP	36,000	$2.6m	under 0.1%	New	new	14 Aug 2026 (the filing on sec.gov)
Winton Group Ltd	25,900	$1.8m	0.06%	Added	+8,990	7 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC	22,542	$1.6m	under 0.1%	New	new	14 Aug 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP	21,918	$1.5m	under 0.1%	Trimmed	-26,556	14 Aug 2026 (the filing on sec.gov)
Janus Henderson Group Ltd	13,629	$951k	under 0.1%	Added	+2,900	14 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP	11,488	$802k	under 0.1%	New	new	14 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC	8,327	$581k	under 0.1%	Trimmed	-104,325	14 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC	5,807	$405k	under 0.1%	Trimmed	-101,578	14 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP	3,300	$230k	under 0.1%	Trimmed	-137,288	13 Aug 2026 (the filing on sec.gov)
Freestone Grove Partners LP	2,217	$155k	under 0.1%	New	new	14 Aug 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

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

Increases

Fidelity (FMR LLC)existing position · 5,067,920 shares now+764,732
Two Sigma Investments LPexisting position · 1,202,004 shares now+271,263
Millennium Management LLCexisting position · 478,120 shares now+73,843
Woodline Partners LPexisting position · 470,875 shares now+55,540
ExodusPoint Capital Management LPexisting position · 58,507 shares now+38,050

Reductions

Invesco Ltdexisting position · 79,856 shares now-487,602
Citadel Advisors LLCexisting position · 159,747 shares now-353,784
Marshall Wace LLPexisting position · 3,300 shares now-137,288
Jane Street Group LLCexisting position · 8,327 shares now-104,325
Squarepoint Ops LLCexisting position · 5,807 shares now-101,578

New positions and exits

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

New (4)

Exited (11)

Renaissance Technologies LLCwas $3.0m
Balyasny Asset Management LLCwas $2.6m
Man Group PLCwas $1.4m
Tudor Investment Corpwas $1.1m
Point72 Asset Management LPwas $962k
Walleye Capital LLCwas $927k
Hudson Bay Capital Management LPwas $743k
Schonfeld Strategic Advisors LLCwas $580k
Farallon Capital Management LLCwas $288k
Acadian Asset Management LLCwas $141k

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.

1 in Q2 2025 to 3 in Q2 2026

Tracked managers listing it, at least.

the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.

Compare with…

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

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

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

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Quarter	Holders	Reported value	Buyers	Sellers
Q2 2025	1	$11m	1	0
Q3 2025	5	$75m	4	1
Q4 2025	1	$13m	12	15
Q1 2026	5	$102m	18	10
Q2 2026	3	$119m	13	17