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SC 13G/A ·Filed Oct 15, 2026

FSLR

FIRST SOLAR, INC.
NEUTRAL
Impact 4/10
Horizonweeks Processed11d 3h ago SEC0001104659-26-116279
Passive stake amendment
Actionable Insight • Neutral

Monitor for any future conversion to a Schedule 13D, which would signal activist intent. The stake is below the 10% threshold that typically triggers heightened scrutiny.

DirectionNeutral
Confidencemedium
Horizonweeks
Latest settled — T+5d ⚠ clustered
FSLR ▼ -0.38% at T+5d
NEUTRAL call -0.38% · α vs SPY +0.05% · entry $172.64 → $171.99
Next anchor: T+20d in 16d
Entry = T+0 close
Oct 15, 2026
via day close
T+1d
-0.49%
call -0.49% · α -0.91%
$171.80
settled 11d ago
T+5d
-0.38%
call -0.38% · α +0.05%
$171.99
settled 5d ago
T+20d
Pending
in 16d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

Citadel Securities GP LLC and related entities filed a Schedule 13G/A disclosing a passive stake of 6.0% in First Solar, Inc. as of October 8, 2026. The filing shows Citadel Securities LLC holds 5,261,645 shares (4.9%), while the broader Citadel group holds 6,422,545 shares (6.0%) through Citadel Securities Group LP and Citadel Securities GP LLC. This is an amendment to a prior passive stake filing, and the passive certification is maintained.

Key Financial Metrics

Stake
6%
Investor
Citadel Securities GP LLC
Investor Type
hedge fund

Key Facts

  • Citadel Securities GP LLC and related entities report beneficial ownership of 6,422,545 shares of First Solar, Inc., representing 6.0% of shares outstanding.
  • Citadel Securities LLC holds 5,261,645 shares (4.9%) directly.
  • Kenneth Griffin may be deemed to beneficially own 6,459,463 shares (6.0%).
  • The filing is an amendment to a prior Schedule 13G and maintains passive investor status under Rule 13d-1(c).
  • The percentage is based on 107,469,788 shares outstanding as of July 24, 2026 (per the issuer's Form 10-Q filed July 30, 2026).

Financial Impact

Passive stake of 6.0% — no material financial impact from the filing itself.

Risk Factors

  • Potential for future activist activity if the filer converts to a 13D.
  • No specific catalyst or material change disclosed in the filing.

Investment Themes

Documents Analyzed

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

DocumentAccession Number
SC 13G/A Filing (Primary)0001104659-26-116279
Document: 0001104659-26-116279-index.html0001104659-26-116279
Document: 0001104659-26-116279.txt0001104659-26-116279
20 reports for FSLR
Performance horizon
67% Hit rate @ T+60 2 of 3 directional calls Went positive at some point 3 of 3 best @ T+60▲ +35.07%Feb 28, 2026
Filters
Rows
Reports for FSLR — sortable, filterable
TypeNow
Oct 15, 2026
11d ago
SC 13G/A
NEUTRAL ★ 4/10
$172.64awaiting T+60—$171.99 (−0.38%)
Oct 15, 2026
11d ago
SC 13G
NEUTRAL ★ 4/10
$178.81awaiting T+60—$171.99 (−3.81%)
Oct 12, 2026
14d ago
Institutional Cluster
MIXED ★ 4/10
$179.72awaiting T+60—$171.99 (−4.30%)
Aug 18, 2026
9w ago
Insider Cluster
NEUTRAL ★ 4/10
$220.01awaiting T+60—$171.99 (−21.83%)
Aug 12, 2026
10w ago
Insider Cluster
NEUTRAL ★ 3/10
$223.69awaiting T+60—$171.99 (−23.11%)
Aug 5, 2026
11w ago
Insider Cluster
NEUTRAL ★ 2/10
$244.14awaiting T+60—$171.99 (−29.55%)
Jun 1, 2026
21w ago
Insider Cluster
NEUTRAL ★ 2/10
$303.00 $206.82▼ −31.74%▼ −32.97%$171.99 (−43.24%)
May 15, 2026
23w ago
3
NEUTRAL ★ 2/10
$233.64 $226.77▼ −2.94%▼ −7.79%$171.99 (−26.39%)
May 5, 2026
24w ago
Insider Cluster
NEUTRAL ★ 3/10
$218.00 $232.73▲ +6.76%▲ +3.24%$171.99 (−21.11%)
May 5, 2026
24w ago
Insider Cluster
NEUTRAL ★ 2/10
$218.00 $232.73▲ +6.76%▲ +3.24%$171.99 (−21.11%)
Showing 10 of 20

US Market Status

Market Closed — Opens Wed (13h 20m)

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Report published Oct 15, 2026