Who owns Dynamix Corporation III Class A Ordinary Shares (DNMX)
Which tracked institutional funds hold DNMX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See DNMX company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-08-14). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
4 tracked funds added or opened DNMX while 8 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
DNMX’s largest tracked holder by dollar value, METEORA CAPITAL, LLC, sizes it at 0.2% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in DNMX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 48 tracked filers holding DNMX, 11 increased or opened the position and 12 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in DNMX between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 1
- Alberta Investment Management Corp$3M
Full exits 6
- METEORA CAPITAL, LLC$19M
- GLAZER CAPITAL, LLC$10M
- TENOR CAPITAL MANAGEMENT Co., L.P.$3M
- Virtu Financial LLC$1M
- K2 PRINCIPAL FUND, L.P.$1M
- Mint Tower Capital Management B.V.$992K
Largest adds
- Logan Stone Capital, LLC$3M
- Verition Fund Management LLC$680K
- Radcliffe Capital Management, L.P.$280K
Largest trims
- Parallax Volatility Advisers, L.P.$2M
- Clear Street Group Inc.$1M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1,575,000 | $16M | 8.8% | 2026-Q2 |
| D. E. Shaw & Co., Inc. | 603,703 | $6M | 3.4% | 2026-Q2 |
| Magnetar Financial LLC | 600,000 | $6M | 3.4% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 600,000 | $6M | 3.4% | 2026-Q2 |
| Linden Advisors LP | 581,521 | $6M | 3.3% | 2026-Q2 |
| AQR Arbitrage LLC added | 563,941 | $6M | 3.2% | 2026-Q2 |
| Verition Fund Management LLC added | 507,422 | $5M | 2.8% | 2026-Q2 |
| Karpus Management, Inc. trimmed | 498,200 | $5M | 2.8% | 2026-Q2 |
| Radcliffe Capital Management, L.P. added | 450,776 | $5M | 2.5% | 2026-Q2 |
| Periscope Capital Inc. | 425,000 | $4M | 2.4% | 2026-Q2 |
| SONA ASSET MANAGEMENT (US) LLC | 392,034 | $4M | 2.2% | 2026-Q2 |
| Lineage Point Capital LP | 390,000 | $4M | 2.2% | 2026-Q2 |
| Parallax Volatility Advisers, L.P. trimmed | 379,577 | $4M | 2.1% | 2026-Q2 |
| First Trust Capital Management L.P. | 352,912 | $4M | 2.0% | 2026-Q2 |
| Alberta Investment Management Corp new | 350,000 | $3M | 2.0% | 2026-Q2 |
| Centiva Capital, LP | 350,000 | $3M | 2.0% | 2026-Q2 |
| Hudson Bay Capital Management LP | 350,000 | $3M | 2.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS | 344,634 | $3M | 1.9% | 2026-Q2 |
| Shaolin Capital Management LLC added | 334,227 | $3M | 1.9% | 2026-Q2 |
| Logan Stone Capital, LLC added | 317,620 | $3M | 1.8% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP | 317,187 | $3M | 1.8% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT | 300,000 | $3M | 1.7% | 2026-Q2 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 300,000 | $3M | 1.7% | 2026-Q2 |
| ARISTEIA CAPITAL, L.L.C. | 300,000 | $3M | 1.7% | 2026-Q2 |
| Context Capital Management, LLC | 300,000 | $3M | 1.7% | 2026-Q2 |
| Polar Asset Management Partners Inc. | 300,000 | $3M | 1.7% | 2026-Q2 |
| Wealthspring Capital LLC | 294,300 | $3M | 1.7% | 2026-Q2 |
| HEIGHTS CAPITAL MANAGEMENT, INC | 200,000 | $2M | 1.1% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC | 200,000 | $2M | 1.1% | 2026-Q2 |
| WHITEBOX ADVISORS LLC | 200,000 | $2M | 1.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 165,000 | $2M | 0.9% | 2026-Q2 |
| Governors Lane LP | 150,000 | $1M | 0.8% | 2026-Q2 |
| BERKLEY W R CORP | 148,786 | $1M | 0.8% | 2026-Q2 |
| Clear Street Group Inc. trimmed | 112,822 | $1M | 0.6% | 2026-Q2 |
| DLD Asset Management, LP | 105,235 | $1M | 0.6% | 2026-Q2 |
| BlueCrest Capital Management Ltd | 100,000 | $999K | 0.6% | 2026-Q2 |
| MOORE CAPITAL MANAGEMENT, LP | 100,000 | $999K | 0.6% | 2026-Q2 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 75,000 | $753K | 0.4% | 2026-Q2 |
| TORONTO DOMINION BANK trimmed | 50,000 | $500K | 0.3% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC | 50,000 | $500K | 0.3% | 2026-Q2 |
| GRITSTONE ASSET MANAGEMENT LLC | 50,000 | $500K | 0.3% | 2026-Q2 |
| Bulldog Investors, LLP | 50,000 | $500K | 0.3% | 2026-Q2 |
| WOLVERINE ASSET MANAGEMENT LLC | 50,000 | $500K | 0.3% | 2026-Q2 |
| MIZUHO SECURITIES USA LLC trimmed | 20,000 | $200K | 0.1% | 2026-Q2 |
| ABC ARBITRAGE SA | 20,000 | $200K | 0.1% | 2026-Q2 |
| Arax Advisory Partners new | 4,000 | $40K | 0.0% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 2,364 | $24K | 0.0% | 2026-Q2 |
| MORGAN STANLEY trimmed | 55 | $549 | 0.0% | 2026-Q2 |
| METEORA CAPITAL, LLC trimmed | 1,869,036 | $19M | 10.4% | 2026-Q1 stale (1 quarter behind) |
| GLAZER CAPITAL, LLC added | 985,072 | $10M | 5.5% | 2026-Q1 stale (1 quarter behind) |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 350,000 | $3M | 2.0% | 2026-Q1 stale (1 quarter behind) |
| Driehaus Capital Management LLC new | 300,000 | $3M | 1.7% | 2025-Q4 stale (2 quarters behind) |
| Virtu Financial LLC added | 130,523 | $1M | 0.7% | 2026-Q1 stale (1 quarter behind) |
| K2 PRINCIPAL FUND, L.P. trimmed | 110,866 | $1M | 0.6% | 2026-Q1 stale (1 quarter behind) |
| Mint Tower Capital Management B.V. | 100,000 | $992K | 0.6% | 2026-Q1 stale (1 quarter behind) |
| Kepos Capital LP new | 48,900 | $485K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| StoneX Group Inc. trimmed | 10,326 | $102K | 0.1% | 2026-Q1 stale (1 quarter behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.