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ADNH

Advent Technologies Holdings, Inc.
$0.30 +0.00 (+0.00%) At close · Jul 14
Market Cap
$1.14M
Shares
3,788,634

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 1
Total Value: $7,070
Total Shares: 16,835

Institutional Ownership Trend

7 quarters

Holder Concentration

Across 1 13F filers · Δ vs Sep 30, 2025
Top Holder
100.0%
Jun 2024 → Dec 2025 · range 29.1% – 100.0%
+56.0 pts
Top 5
100.0%
Jun 2024 → Dec 2025 · range 91.0% – 100.0%
+7.0 pts
Top 10
100.0%
Jun 2024 → Dec 2025 · range 99.4% – 100.0%
+0.4 pts
HHI
10,000
Jun 2024 → Dec 2025 · range 1,968 – 10,000
Highly concentrated+7,399

Quarterly Activity

vs Sep 30, 2025
New
1
Increased
0
Decreased
0
Sold Out
18
Unchanged
0
Holder count: -17
Institutional value: -98.9%
Shares held: -90.9%

Top New Positions

vs Sep 30, 2025
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Sep 30, 2025
Institution Previously Held Last Value (USD) Open
Showing 1 of 1
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1744494 CUSIP 00788A204 Visit website Investor relations