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SC 13G/A ·Filed Sep 28, 2026

NKTR

NEKTAR THERAPEUTICS
NEUTRAL
Impact 4/10
Horizonweeks Processed29d 1h ago SEC0001193125-26-403411
Passive stake amendment
Actionable Insight • Neutral

Two Seas Capital is a new top-10 holder at 9.8%, just under the 10% threshold that would trigger additional reporting. Monitor for any further accumulation or a potential conversion to a 13D (activist) filing, though the passive certification suggests no immediate control intent.

DirectionNeutral
Confidencemedium
Horizonweeks
Latest settled — T+20d
NKTR ▼ -38.00% at T+20d
NEUTRAL call -38.00% · α vs SPY -37.97% · entry $60.40 → $37.45
Next anchor: T+60d in 8w
Entry = T+0 close
Sep 28, 2026
via day close
T+1d
-1.92%
call -1.92% · α -1.74%
$59.24
settled 28d ago
T+5d
-30.10%
call -30.10% · α -31.30%
$42.22
settled 22d ago
T+20d
-38.00%
call -38.00% · α -37.97%
$37.45
settled yesterday
T+60d
Pending
in 8w

Price Chart

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Executive Summary

Two Seas Capital LP filed an amended Schedule 13G disclosing a 9.8% passive stake in Nektar Therapeutics as of September 25, 2026, representing 3,345,978 shares. This is a new filer on NKTR (no prior 13G from Two Seas in the cross-filing context), indicating a significant new passive position built over the past several months. The stake is held across two funds, with the bulk (3,175,430 shares) in the Global Fund.

Key Financial Metrics

Stake
9.8%
Investor
Two Seas Capital LP
Investor Type
hedge fund

Key Facts

  • Two Seas Capital LP reports 3,345,978 shares of NKTR common stock, a 9.8% passive stake.
  • Stake is held via Two Seas Global (Master) Fund LP (3,175,430 shares) and Two Seas Litigation Opportunities Fund LLC (170,548 shares).
  • Filing date is September 28, 2026; beneficial ownership date is September 25, 2026.
  • Shares outstanding used for percentage: 34,142,994 as of August 7, 2026 (per NKTR's 10-Q).
  • Two Seas certifies passive intent under Rule 13d-1(b) — not an activist filing.

Financial Impact

9.8% stake valued at approximately $X million (no share price provided in filing).

ownership concentration

Risk Factors

  • Two Seas could increase stake above 10%, triggering additional scrutiny or a 13D filing.
  • A large passive holder near 10% may create overhang if they decide to reduce position.

Investment Themes

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
SC 13G/A Filing (Primary)0001193125-26-403411
Document: 0001193125-26-403411-index.html0001193125-26-403411
Document: 0001193125-26-403411.txt0001193125-26-403411
17 reports for NKTR
Performance horizon
71% Hit rate @ T+1 5 of 7 directional calls Went positive at some point 6 of 7 best @ T+20▲ +28.57%May 8, 2026
Filters
Rows
Reports for NKTR — sortable, filterable
TypeNow
Oct 1, 2026
26d ago
8-K
BULLISH ★ 6/10
$46.99 $43.58▼ −7.26%▼ −8.00%$37.45 (−20.30%)
Sep 28, 2026
29d ago
SC 13G/A
NEUTRAL ★ 4/10
$60.40 $59.24▼ −1.92%▼ −1.74%$37.45 (−38.00%)
Sep 25, 2026
4w ago
8-K
BULLISH ★ 6/10
$57.06 $60.40▲ +5.85%▲ +6.60%$37.45 (−34.37%)
Aug 13, 2026
10w ago
Press Release
BULLISH ★ 7/10
$73.02 $72.67▼ −0.48%▼ −0.01%$37.45 (−48.71%)
Aug 9, 2026
11w ago
Institutional Cluster
BULLISH ★ 5/10
$74.86 $75.50▲ +0.85%▲ +1.17%$37.45 (−49.97%)
Aug 7, 2026
11w ago
Court Ruling
NEUTRAL ★ 4/10
$74.86 $75.50▲ +0.85%▲ +1.17%$37.45 (−49.97%)
Jul 28, 2026
12w ago
Press Release
NEUTRAL ★ 1/10
$70.68 $71.45▲ +1.09%▼ −0.59%$37.45 (−47.01%)
Jun 11, 2026
19w ago
Institutional Cluster
MIXED ★ 4/10
$59.21 $59.38▲ +0.29%▼ −0.25%$37.45 (−36.75%)
Jun 11, 2026
19w ago
Institutional Cluster
NEUTRAL ★ 3/10
$59.21 $59.38▲ +0.29%▼ −0.25%$37.45 (−36.75%)
May 21, 2026
22w ago
Insider Cluster
BEARISH ★ 5/10
$66.61 $65.56▲ +1.58%▲ +2.16%$37.45 (+43.78%)
Showing 10 of 17

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Report published Sep 28, 2026