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: 31 Dec 2025; the date the book describes
Filed: 19 Feb 2026; latest of these filings; the earliest 10 Feb 2026
Managers listing it: 21; 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: 4,213,740; combined, among listed positions
Reported value: $178m; combined, at the quarter end

Among the 92 comparable managers: 12 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -544,700.

Managers listing NKTR 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.

ActionShare of book at least

21 of 21 holders

				Action		Filing
Two Sigma Investments LP	473,014	$20m	under 0.1%	Added	+38,777	17 Feb 2026 (the filing on sec.gov)
Invesco Ltd	468,159	$20m	under 0.1%	Added	+241,262	19 Feb 2026 (the filing on sec.gov)
Millennium Management LLC	454,075	$19m	under 0.1%	Trimmed	-91,919	17 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP	433,419	$18m	under 0.1%	Added	+309,761	17 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP	383,310	$16m	under 0.1%	Trimmed	-541,586	17 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC	309,777	$13m	under 0.1%	Trimmed	-51,296	17 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP	308,414	$13m	under 0.1%	Added	+129,506	17 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC	295,716	$13m	under 0.1%	Added	+123,940	17 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC	282,021	$12m	under 0.1%	Added	+99,207	17 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC	218,337	$9.2m	under 0.1%	New	new	12 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC	172,881	$7.3m	under 0.1%	Trimmed	-105,660	12 Feb 2026 (the filing on sec.gov)
Woodline Partners LP	104,000	$4.4m	under 0.1%	Trimmed	-129,059	17 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)	101,129	$4.3m	under 0.1%	Added	+61,162	17 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC	72,241	$3.0m	under 0.1%	Added	+44,906	10 Feb 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP	59,691	$2.5m	under 0.1%	Trimmed	-47,987	13 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP	24,023	$1.0m	under 0.1%	New	new	13 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC	20,257	$856k	under 0.1%	Trimmed	-14,243	13 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc	10,376	$439k	under 0.1%	Trimmed	-1,600	17 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd	8,100	$342k	under 0.1%	New	new	17 Feb 2026 (the filing on sec.gov)
Winton Group Ltd	7,765	$328k	under 0.1%	New	new	11 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC	7,035	$297k	under 0.1%	Trimmed	-17,380	13 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Point72 Asset Management LPexisting position · 433,419 shares now+309,761
Invesco Ltdexisting position · 468,159 shares now+241,262
Jane Street Group LLCnew position · 218,337 shares now+218,337
Two Sigma Advisers LPexisting position · 308,414 shares now+129,506
Voloridge Investment Management LLCexisting position · 295,716 shares now+123,940

Reductions

Susquehanna International Group LLPexisting position · 383,310 shares now-541,586
Woodline Partners LPexisting position · 104,000 shares now-129,059
Renaissance Technologies LLCexisting position · 172,881 shares now-105,660
Millennium Management LLCexisting position · 454,075 shares now-91,919
Citadel Advisors LLCexisting position · 309,777 shares now-51,296

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 (6)

Farallon Capital Management LLCwas $45m
Walleye Capital LLCwas $2.1m
Caxton Associates LLPwas $795k
Tudor Investment Corpwas $309k
Brevan Howard Capital Management LPwas $234k
Quantbot Technologies LPwas $5k

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