Who owns CO2 Energy Transition Corp. Common Stock (NOEM)
Which tracked institutional funds hold NOEM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NOEM company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-15). 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
2 tracked funds added or opened NOEM while 2 trimmed or exited it between 2025-Q4 and 2026-Q1 — 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
NOEM’s largest tracked holder by dollar value, Lepercq De Neuflize Asset Management LLC, sizes it at 4.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 4.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in NOEM 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 2025-Q4 and 2026-Q1, across 38 tracked filers holding NOEM, 11 increased or opened the position and 8 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 NOEM between the 2025-Q4 and 2026-Q1 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
- SONA ASSET MANAGEMENT (US) LLC$3M
Largest adds
- Lepercq De Neuflize Asset Management LLC$5M
Largest trims
- MANGROVE PARTNERS IM, LLC$3M
- Karpus Management, Inc.$462K
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 |
|---|---|---|---|---|
| Lepercq De Neuflize Asset Management LLC added | 93,953 | $10M | 24.6% | 2026-Q1 |
| Karpus Management, Inc. trimmed | 729,671 | $8M | 18.0% | 2026-Q1 |
| WHITEBOX ADVISORS LLC | 390,000 | $4M | 9.6% | 2026-Q1 |
| Westchester Capital Management, LLC | 331,013 | $3M | 8.2% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC trimmed | 279,552 | $3M | 7.4% | 2026-Q1 |
| D. E. Shaw & Co., Inc. | 280,000 | $3M | 6.9% | 2026-Q1 |
| SONA ASSET MANAGEMENT (US) LLC new | 252,019 | $3M | 6.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP | 217,499 | $2M | 5.4% | 2026-Q1 |
| L1 Global Manager Pty Ltd | 140,000 | $1M | 3.5% | 2026-Q1 |
| WOLVERINE ASSET MANAGEMENT LLC added | 73,129 | $758K | 1.8% | 2026-Q1 |
| MANGROVE PARTNERS IM, LLC trimmed | 39,200 | $407K | 1.0% | 2026-Q1 |
| Radcliffe Capital Management, L.P. | 30,291 | $314K | 0.7% | 2026-Q1 |
| Dakota Wealth Management trimmed | 22,600 | $234K | 0.6% | 2026-Q1 |
| Virtu Financial LLC trimmed | 22,147 | $230K | 0.5% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS new | 17,988 | $187K | 0.4% | 2026-Q1 |
| ROBINSON CAPITAL MANAGEMENT, LLC | 15,250 | $159K | 0.4% | 2026-Q1 |
| FLOW TRADERS U.S. LLC | 13,802 | $143K | 0.3% | 2026-Q1 |
| Harraden Circle Investments, LLC | 748,780 | $127K | 0.3% | 2026-Q1 |
| MMCAP International Inc. SPC | 590,000 | $100K | 0.2% | 2026-Q1 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | 588,770 | $88K | 0.2% | 2026-Q1 |
| JPMORGAN CHASE & CO new | 588,770 | $88K | 0.2% | 2026-Q1 |
| AQR Arbitrage LLC trimmed | 580,471 | $87K | 0.2% | 2026-Q1 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC added | 428,040 | $73K | 0.2% | 2026-Q1 |
| Clear Street Group Inc. added | 368,186 | $63K | 0.1% | 2026-Q1 |
| ARISTEIA CAPITAL, L.L.C. | 578,096 | $53K | 0.1% | 2026-Q1 |
| Hudson Bay Capital Management LP | 290,000 | $49K | 0.1% | 2026-Q1 |
| Polar Asset Management Partners Inc. | 290,000 | $27K | 0.1% | 2026-Q1 |
| Verition Fund Management LLC | 205,000 | $23K | 0.1% | 2026-Q1 |
| TORONTO DOMINION BANK trimmed | 129,866 | $22K | 0.1% | 2026-Q1 |
| Shaolin Capital Management LLC | 199,893 | $22K | 0.1% | 2026-Q1 |
| K2 PRINCIPAL FUND, L.P. trimmed | 70,220 | $12K | 0.0% | 2026-Q1 |
| DLD Asset Management, LP | 74,591 | $8K | 0.0% | 2026-Q1 |
| HEIGHTS CAPITAL MANAGEMENT, INC | 40,000 | $4K | 0.0% | 2026-Q1 |
| Centiva Capital, LP | 40,000 | $4K | 0.0% | 2026-Q1 |
| UBS Group AG added | 400 | $4K | 0.0% | 2026-Q1 |
| MIZUHO SECURITIES USA LLC trimmed | 21,177 | $3K | 0.0% | 2026-Q1 |
| TWO SIGMA SECURITIES, LLC new | 10,851 | $814 | 0.0% | 2026-Q1 |
| MORGAN STANLEY added | 77 | $798 | 0.0% | 2026-Q1 |
| BERKLEY W R CORP added | 59,823 | $608K | 1.4% | 2025-Q3 stale |
| Crossingbridge Advisors, LLC trimmed | 25,000 | $252K | 0.6% | 2025-Q2 stale |
| ATW SPAC MANAGEMENT LLC | 375,000 | $90K | 0.2% | 2025-Q3 stale |
| CLEAR STREET LLC added | 383,641 | $67K | 0.2% | 2025-Q2 stale |
| MIZUHO SECURITIES USA LLC new | 100,300 | $16K | 0.0% | 2025-Q1 stale |
| METEORA CAPITAL, LLC new | 2 | $21 | 0.0% | 2025-Q4 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale |
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.