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SC 13D/A ·Filed Oct 21, 2026

INDP

Indaptus Therapeutics, Inc.
NEUTRAL
Impact 4/10
Horizonweeks Processed5d 20h ago SEC0001829126-26-011386
Activist stake amendment (position change)
Actionable Insight • Neutral

The activist's stake reduction and lack of new demands suggest a passive, non-escalatory posture. Monitor for any future 13D amendments or public statements regarding the company's strategic review or post-investment transaction, as the company is actively evaluating a target acquisition.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+1d ⚠ clustered
INDP ▲ +5.69% at T+1d
NEUTRAL call +5.69% · α vs SPY +6.21% · entry $2.99 → $3.16
Next anchor: T+5d in 19h
Entry = T+0 close
Oct 21, 2026
via day close
T+1d
+5.69%
call +5.69% · α +6.21%
$3.16
settled 5d ago
T+5d
Pending
in 19h
T+20d
Pending
in 22d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

Ting Yang filed Amendment No. 3 to Schedule 13D, reporting a decrease in beneficial ownership to 6.48% of Indaptus Therapeutics common stock. The reduction resulted from the sale of 1,301,827 shares in open-market transactions between August and September 2026, combined with dilution from a 20,338,974-share private placement that closed on October 16, 2026. The filing does not include any new demands or new intentions, indicating a passive posture with no escalation.

Key Financial Metrics

Stake
6.48%
Investor
Ting Yang

Key Facts

  • Ting Yang now beneficially owns 9,948,173 shares of Indaptus common stock, or 6.48% of 153,581,298 shares outstanding.
  • Yang sold 1,301,827 shares in unsolicited open-market transactions from August 6, 2026 through September 24, 2026 at prices ranging from $1.08 to $4.00 per share.
  • The ownership percentage decreased from prior levels due to both the share sales and the issuance of 20,338,974 new shares in a private placement that closed October 16, 2026.
  • No new purpose, demands, or changes to the original Schedule 13D items were stated in this amendment.
  • Yang has sole voting and dispositive power over all 9,948,173 shares.

Financial Impact

Yang reduced his stake by 1,301,827 shares, with total proceeds estimated between approximately $1.5 million and $5.2 million based on disclosed trade prices. The private placement added 20,338,974 shares to the outstanding count, diluting Yang's percentage from a higher prior level to 6.48%.

ownership percentagedilution

Risk Factors

  • Further insider selling could pressure the stock.
  • Dilution from the October 2026 private placement may continue to weigh on share price.
  • The company's ongoing search for a strategic transaction introduces execution risk and potential for further dilution or restructuring.

Investment Themes

Documents Analyzed

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

DocumentAccession Number
SC 13D/A Filing (Primary)0001829126-26-011386
Document: 0001829126-26-011386-index.html0001829126-26-011386
Document: 0001829126-26-011386.txt0001829126-26-011386
19 reports for INDP
Performance horizon
60% Hit rate @ T+60 3 of 5 directional calls Went positive at some point 7 of 11 best @ T+20▲ +59.35%Jul 20, 2026
Filters
Rows
Reports for INDP — sortable, filterable
TypeNow
Oct 22, 2026
4d ago
SC 13D/A
NEUTRAL ★ 4/10
$3.16awaiting T+60—$3.49 (+10.39%)
Oct 22, 2026
4d ago
SC 13D/A
NEUTRAL ★ 3/10
$3.16awaiting T+60—$3.49 (+10.39%)
Oct 22, 2026
4d ago
SC 13D/A
NEUTRAL ★ 4/10
$3.16awaiting T+60—$3.49 (+10.39%)
Oct 21, 2026
5d ago
SC 13D/A
NEUTRAL ★ 4/10
$2.99awaiting T+60—$3.49 (+16.66%)
Oct 20, 2026
6d ago
8-K
BEARISH ★ 6/10
$3.16awaiting T+60—$3.49 (−10.39%)
Sep 30, 2026
27d ago
8-K
NEUTRAL ★ 3/10
$2.30awaiting T+60—$3.49 (+51.66%)
Sep 9, 2026
6w ago
8-K
BEARISH ★ 7/10
$2.56awaiting T+60—$3.49 (−36.26%)
Sep 4, 2026
7w ago
424B5
BEARISH ★ 6/10
$1.85awaiting T+60—$3.49 (−88.55%)
Sep 1, 2026
8w ago
8-K
BEARISH ★ 5/10
$1.13awaiting T+60—$3.49 (−208.69%)
Aug 26, 2026
8w ago
EFFECT
BEARISH ★ 7/10
$1.14awaiting T+60—$3.49 (−205.98%)
Showing 10 of 19

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Report published Oct 21, 2026