Who owns Marti Technologies, Inc. (MRT)
Which tracked institutional funds hold MRT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MRT 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
The tracked-fund tape on MRT is one-sided between 2025-Q4 and 2026-Q1: 0 added or opened and 4 trimmed or exited — on balance reducing.
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
MRT’s largest tracked holder by dollar value, DLD Asset Management, LP, sizes it at 3.9% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 3.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in MRT 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 15 tracked filers holding MRT, 2 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 MRT 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.
Largest trims
- DLD Asset Management, LP$2M
- Gramercy Funds Management LLC$861K
- WELLS FARGO & COMPANY/MN$370K
- Weiss Asset Management LP$286K
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 |
|---|---|---|---|---|
| DLD Asset Management, LP trimmed | 6,566,117 | $13M | 60.0% | 2026-Q1 |
| Gramercy Funds Management LLC | 2,328,028 | $5M | 21.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN | 1,000,000 | $2M | 9.1% | 2026-Q1 |
| Luxor Capital Group, LP | 355,990 | $712K | 3.3% | 2026-Q1 |
| Arbiter Partners Capital Management LLC added | 286,254 | $573K | 2.6% | 2026-Q1 |
| Weiss Asset Management LP trimmed | 127,406 | $255K | 1.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 40,200 | $80K | 0.4% | 2026-Q1 |
| CJM Wealth Advisers, Ltd. | 35,000 | $70K | 0.3% | 2026-Q1 |
| BBR PARTNERS, LLC | 35,000 | $70K | 0.3% | 2026-Q1 |
| Curi Capital, LLC | 35,000 | $70K | 0.3% | 2026-Q1 |
| STATE STREET CORP trimmed | 33,626 | $67K | 0.3% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 11,288 | $23K | 0.1% | 2026-Q1 |
| UBS Group AG trimmed | 494 | $988 | 0.0% | 2026-Q1 |
| Farther Finance Advisors, LLC | 1 | $2 | 0.0% | 2026-Q1 |
| CITIGROUP INC new | 1 | $2 | 0.0% | 2026-Q1 |
| HRT FINANCIAL LP trimmed | 25,888 | $80K | 0.4% | 2025-Q1 stale |
| MILLENNIUM MANAGEMENT LLC added | 23,283 | $55K | 0.3% | 2025-Q4 stale |
| XTX Topco Ltd trimmed | 11,805 | $28K | 0.1% | 2025-Q4 stale |
| State of Wyoming new | 6,781 | $21K | 0.1% | 2025-Q1 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.