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SC 13D/A ·Filed Oct 6, 2026

CRBG

Corebridge Financial, Inc.
NEUTRAL
Impact 4/10
Horizonweeks Processed20d 13h ago SEC0001193125-26-415635
Activist stake amendment (position change)
Actionable Insight • Neutral

Nippon Life continues to methodically increase its strategic stake via a 10b5-1 plan, now at 28.4%. No new activist demands or purpose changes — this is consistent with a long-term strategic holder accumulating. Monitor for any future 13D amendments that signal a shift in intent or further accumulation above 30%.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+5d
CRBG ▼ -1.31% at T+5d
NEUTRAL call -1.31% · α vs SPY -0.33% · entry $34.40 → $33.95
Next anchor: T+20d in 7d
Latest observation: T+12 -1.77% FF3 residual α
Entry = T+0 close
Oct 6, 2026
via day close
T+1d
+0.15%
call +0.15% · α +0.57%
$34.45
settled 20d ago
T+5d
-1.31%
call -1.31% · α -0.33%
$33.95
settled 14d ago
T+20d
Pending
in 7d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Nippon Life Insurance Co. filed an amended Schedule 13D on October 6, 2026, disclosing the open-market purchase of 4,614,523 Corebridge Financial (CRBG) common shares for ~$158.2 million between September 9 and October 2, 2026, under a pre-existing 10b5-1 trading plan. This increases Nippon Life's beneficial ownership to 126,604,050 shares (28.4% of shares outstanding as of July 31, 2026), up from the prior filing. The filing shows continued accumulation by a major strategic holder but does not change the stated purpose or add new activist demands.

Key Financial Metrics

Stake
28.4%
Investor
Nippon Life Insurance Co

Key Facts

  • Nippon Life purchased 4,614,523 shares of CRBG common stock from September 9 to October 2, 2026, for aggregate consideration of ~$158,225,595 in open-market transactions under a 10b5-1 trading plan.
  • Total beneficial ownership increased to 126,604,050 shares (including 33,271 shares held by wholly owned subsidiary Nissay Asset Management Corp.), representing 28.4% of 445,772,522 shares outstanding as of July 31, 2026.
  • No changes to the stated purpose (Item 4) or demands — this is a passive accumulation update under an existing plan.
  • Funds for the purchases came from working capital.

Financial Impact

~$158.2 million deployed to acquire 4.6 million shares at a weighted average price not disclosed in the filing text (Annex A referenced but not parsed).

ownership percentageshare count

Risk Factors

  • No new demands or escalation — the accumulation is passive and pre-planned, not a catalyst for near-term change.
  • At 28.4%, Nippon Life is approaching the 30% threshold that could trigger change-of-control provisions or poison pill considerations.

Investment Themes

Traditional Finance

Documents Analyzed

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

DocumentAccession Number
SC 13D/A Filing (Primary)0001193125-26-415635
Document: 0001193125-26-415635-index.html0001193125-26-415635
Document: 0001193125-26-415635.txt0001193125-26-415635
15 reports for CRBG
Performance horizon
50% Hit rate @ T+5 3 of 6 directional calls Went positive at some point 5 of 6 best @ T+5▲ +7.26%Aug 12, 2026
Filters
Rows
Reports for CRBG — sortable, filterable
TypeNow
Oct 6, 2026
20d ago
SC 13D/A
NEUTRAL ★ 4/10
$34.40 $33.95▼ −1.31%▼ −0.33%$34.66 (+0.76%)
Sep 22, 2026
5w ago
Insider Cluster
NEUTRAL ★ 4/10
$33.89 $33.12▼ −2.27%▼ −1.60%$34.66 (+2.27%)
Sep 21, 2026
5w ago
Insider Cluster
BULLISH ★ 4/10
$33.84 $33.77▼ −0.21%▲ +0.98%$34.66 (+2.42%)
Sep 18, 2026
5w ago
Insider Cluster
NEUTRAL ★ 3/10
$34.80 $33.78▼ −2.93%▼ −1.91%$34.66 (−0.40%)
Sep 17, 2026
5w ago
Insider Cluster
BULLISH ★ 5/10
$34.81 $34.87▲ +0.17%▼ −1.10%$34.66 (−0.43%)
Sep 16, 2026
5w ago
Insider Cluster
BULLISH ★ 5/10
$34.88 $34.09▼ −2.26%▼ −2.87%$34.66 (−0.63%)
Sep 15, 2026
5w ago
Insider Cluster
BULLISH ★ 6/10
$34.85 $33.89▼ −2.75%▼ −4.58%$34.66 (−0.55%)
Sep 14, 2026
6w ago
Insider Cluster
NEUTRAL ★ 4/10
$35.02 $33.84▼ −3.37%▼ −5.50%$34.66 (−1.03%)
Sep 9, 2026
6w ago
425
NEUTRAL ★ 3/10
$34.18 $34.88▲ +2.05%▲ +2.55%$34.66 (+1.40%)
Aug 12, 2026
10w ago
Insider Cluster
BEARISH ★ 6/10
$34.30 $31.81▲ +7.26%▲ +5.30%$34.66 (−1.05%)
Showing 10 of 15

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Report published Oct 6, 2026