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SC 13G ·Filed Oct 8, 2026

OBK

Origin Bancorp, Inc.
NEUTRAL
Impact 3/10
Horizonweeks Processed18d 14h ago SEC0000354204-26-001083
Passive investor 5%+ stake
Actionable Insight • Neutral

Monitor for any future amendments that could signal a change in Dimensional's passive stance or an increase in stake. No immediate catalyst from this routine passive disclosure.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+5d ⚠ clustered
OBK ▼ -1.28% at T+5d
NEUTRAL call -1.28% · α vs SPY -1.00% · entry $52.47 → $51.80
Next anchor: T+20d in 9d
Latest observation: T+11 -4.12% FF3 residual α
Entry = T+0 close
Oct 8, 2026
via day close
T+1d
-1.73%
call -1.73% · α -2.33%
$51.56
settled 18d ago
T+5d
-1.28%
call -1.28% · α -1.00%
$51.80
settled 12d ago
T+20d
Pending
in 9d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Dimensional Fund Advisors LP disclosed a 5.1% passive stake in Origin Bancorp, Inc. via a Schedule 13G filing dated October 8, 2026. The filing indicates Dimensional holds 1,565,617 shares of common stock, acquired in the ordinary course of business with no intent to influence control.

Key Financial Metrics

Stake
5.1%
Investor
Dimensional Fund Advisors LP
Investor Type
mutual fund

Key Facts

  • Dimensional Fund Advisors LP reported beneficial ownership of 1,565,617 shares of Origin Bancorp common stock.
  • The stake represents 5.1% of shares outstanding as of September 30, 2026.
  • Dimensional is a registered investment adviser and disclaims beneficial ownership; shares are held by various funds it advises.
  • This is a new Schedule 13G filing (not an amendment), indicating Dimensional crossed the 5% threshold for the first time.
  • The filing certifies the securities were acquired in the ordinary course of business and not with the purpose of changing or influencing control.

Financial Impact

Passive 5.1% stake; no direct financial impact from the filing itself.

Risk Factors

  • Dimensional could increase or decrease its position without public disclosure until crossing the next threshold.
  • No indication of activist intent, but any future conversion to a 13D would be a significant event.

Investment Themes

Traditional Finance

Documents Analyzed

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

DocumentAccession Number
SC 13G Filing (Primary)0000354204-26-001083
Document: 0000354204-26-001083-index.html0000354204-26-001083
Document: 0000354204-26-001083.txt0000354204-26-001083
19 reports for OBK
Performance horizon
80% Hit rate @ T+20 4 of 5 directional calls Went positive at some point 4 of 5 best @ T+5▲ +6.58%Jul 20, 2026
Filters
Rows
Reports for OBK — sortable, filterable
TypeNow
Oct 9, 2026
17d ago
8-K
NEUTRAL ★ 2/10
$51.56awaiting T+20—$52.12 (+1.09%)
Oct 8, 2026
18d ago
SC 13G
NEUTRAL ★ 3/10
$52.47awaiting T+20—$52.12 (−0.67%)
Oct 6, 2026
20d ago
8-K
NEUTRAL ★ 2/10
$52.32awaiting T+20—$52.12 (−0.38%)
Sep 15, 2026
5w ago
8-K
BEARISH ★ 7/10
$54.46 $51.94▲ +4.63%▲ +7.60%$52.12 (+4.30%)
Aug 10, 2026
11w ago
Insider Buy
BULLISH ★ 4/10
$53.14 $53.75▲ +1.15%▲ +2.06%$52.12 (−1.92%)
Jul 22, 2026
13w ago
Press Release
BULLISH ★ 6/10
$52.54 $52.76▲ +0.42%▼ −2.89%$52.12 (−0.80%)
Jul 20, 2026
14w ago
Court Ruling
BULLISH ★ 4/10
$51.80 $53.56▲ +3.40%▲ +0.84%$52.12 (+0.62%)
Jul 10, 2026
15w ago
Press Release
NEUTRAL ★ 1/10
$51.24 $53.84▲ +5.07%▲ +2.65%$52.12 (+1.72%)
Jul 10, 2026
15w ago
8-K
NEUTRAL ★ 2/10
$51.24 $53.84▲ +5.07%▲ +2.65%$52.12 (+1.72%)
Apr 30, 2026
25w ago
10-K/A
NEUTRAL ★ 1/10
$46.82 $47.42▲ +1.28%▼ −3.69%$52.12 (+11.32%)
Showing 10 of 19

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Report published Oct 8, 2026