Dune Acquisition Corporation
Dune Acquisition Corporation (DUNE) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · DUNE · as of Sep 30, 2023
Ownership Breakdown
19
Institutional Holders
▼ 1 vs Q2
$7.14M
Total Inst. Value
▼ $708,447 vs Q2
5.49M
Shares Outstanding
freeFloat 21.51%
905,446
13F Shares Held
▲ 7,942 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
DUNE largest shareholders · institutional ownership
Q3 2023 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
NOMURA HOLDINGS INC security brokers, dealers & flotation companies | 117.0K | 2.13% | 2.13% | $1.18B | Nov 14, 2023 | ▲ 50.0K |
MASO CAPITAL PARTNERS LTD security brokers, dealers & flotation companies | 109.2K | 1.99% | 1.99% | $8.00M | Nov 13, 2023 | — held |
MACQUARIE GROUP LTD security brokers, dealers & flotation companies | 90.0K | 1.64% | 1.64% | $909,000 | Nov 14, 2023 | ▲ 90.0K |
JPMORGAN CHASE & CO security brokers, dealers & flotation companies | 79.7K | 1.45% | 1.45% | $804.70M | Nov 14, 2023 | — held |
BARCLAYS PLC security brokers, dealers & flotation companies | 72.2K | 1.31% | 1.31% | $728.13M | Mar 26, 2026 | — held |
FIFTH LANE CAPITAL, LP security brokers, dealers & flotation companies | 56.1K | 1.02% | 1.02% | $567.07M | Nov 14, 2023 | — held |
HRT FINANCIAL LP security brokers, dealers & flotation companies | 51.0K | 92.89% | 92.89% | $515.00M | Nov 13, 2023 | — held |
LEVIN CAPITAL STRATEGIES, L.P. security brokers, dealers & flotation companies | 50.0K | 91.00% | 91.00% | $505.00M | Oct 31, 2023 | — held |
WESTCHESTER CAPITAL MANAGEMENT, LLC security brokers, dealers & flotation companies | 50.0K | 91.00% | 91.00% | $505.00M | Nov 8, 2023 | — held |
UBS GROUP AG security brokers, dealers & flotation companies | 45.0K | 81.90% | 81.90% | $454.05M | Nov 9, 2023 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2023 vs prior quarter
Q3 2023
3
Increased
+172.0K shares1
New Positions
first time holders1
Decreased
−9.9K shares4
Sold Out
fully exitedNet shares change (top 50)
+162.1K
+172.0K / −9.9K
Net new holders
-1
1 new / 4 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
DUNE insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
1
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Nance William Bennett Chief Executive Officer | Dec 21, 2023 | Award | 3,440,000 | — | — | 3.44M | Form 4 ↗ |
Dune Acquisition Holdings LLC
| Dec 21, 2023 | Award | 4,850,000 | $11.50 | $55.77M | 4.85M | Form 4 ↗ |
Dune Acquisition Holdings LLC
| Sep 20, 2023 | C-Conversion | 4,312,500 | — | — | 4.31M | Form 4 ↗ |
Dune Acquisition Holdings LLC
| Sep 20, 2023 | C-Conversion | 4,312,500 | — | — | 0 | Form 4 ↗ |
BNP PARIBAS ARBITRAGE, SA
| Aug 24, 2022 | Sale | 1 | $9.82 | $9.82 | 1 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Dune Acquisition Corporation (DUNE) is primarily owned by institutional investors, who hold approximately 16.5% of total shares outstanding. Company insiders own approximately 78.49%, while retail and public investors account for the remaining 5.03%.
The largest institutional shareholder of Dune Acquisition Corporation is NOMURA HOLDINGS INC, holding approximately 117,000 shares — equal to 2.13% of outstanding shares — as of September 30, 2023.
A total of 19 institutional investors currently hold DUNE stock, with a combined institutional value of approximately $7,138,022 as of the most recent 13F filing period.
Frequently asked questions
DUNE ownershipDune Acquisition Corporation (DUNE) is primarily owned by institutional investors, who hold approximately 16.5% of shares. The largest shareholder is NOMURA HOLDINGS INC with a 2.13% stake. Company insiders hold 78.49%. Data sourced from SEC Form 13F as of September 30, 2023.