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Institutional Ownership · SEC Form 13F

Who owns Meshflow Acquisition (MESH)


Which tracked institutional funds hold MESH, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MESH company fundamentals →

Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

127
Institutional holders
40M
Shares held (tracked funds)

How the tape is positioned

19 tracked funds added or opened MESH while 12 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

MESH’s largest tracked holder by dollar value, TENOR CAPITAL MANAGEMENT Co., L.P., sizes it at 1.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.

Book-share is each fund’s reported value in MESH 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 77 tracked filers holding MESH, 49 increased or opened the position and 14 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 MESH 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 6

  • Kryger Capital LLC$7M
  • SONA ASSET MANAGEMENT (US) LLC$5M
  • TORONTO DOMINION BANK$3M
  • MIZUHO SECURITIES USA LLC$1M
  • HighTower Advisors, LLC$989K
  • Kepos Capital LP$539K

Full exits 3

  • Saba Capital Management, L.P.$9M
  • KRYGER CAPITAL Ltd$1M
  • StoneX Group Inc.$1M

Largest adds

  • TENOR CAPITAL MANAGEMENT Co., L.P.$108M
  • Context Capital Management, LLC$43M
  • D. E. Shaw & Co., Inc.$7M
  • METEORA CAPITAL, LLC$4M
  • Parallax Volatility Advisers, L.P.$2M
  • GLAZER CAPITAL, LLC$1M

Largest trims

  • Ilex Capital Partners (UK) LLP$7M
  • HIGHBRIDGE CAPITAL MANAGEMENT LLC$2M
  • Periscope Capital Inc.$1M
  • Crossingbridge Advisors, LLC$503K
  • CSS LLC/IL$503K
  • Shaolin Capital Management LLC$503K

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).

FundSharesReported value% of valueQuarter
TENOR CAPITAL MANAGEMENT Co., L.P. trimmed416,666$108M30.0%2026-Q1
Context Capital Management, LLC trimmed166,666$43M12.0%2026-Q1
Hudson Bay Capital Management LP1,755,999$18M4.9%2026-Q2
MMCAP International Inc. SPC1,500,000$15M4.1%2026-Q1
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed1,249,998$12M3.4%2026-Q1
AQR Arbitrage LLC trimmed1,153,582$11M3.2%2026-Q1
ARISTEIA CAPITAL, L.L.C.1,150,000$11M3.2%2026-Q1
Jain Global LLC1,125,000$11M3.1%2026-Q1
LMR Partners LLP1,000,000$10M2.8%2026-Q1
Radcliffe Capital Management, L.P. added775,000$8M2.1%2026-Q1
Parallax Volatility Advisers, L.P. added763,403$8M2.1%2026-Q1
First Trust Capital Management L.P.750,000$7M2.1%2026-Q1
PICTON MAHONEY ASSET MANAGEMENT700,000$7M1.9%2026-Q1
OMERS ADMINISTRATION Corp600,017$6M1.7%2026-Q1
TWO SIGMA INVESTMENTS, LP543,750$5M1.5%2026-Q2
Kryger Capital LLC new537,989$5M1.5%2026-Q1
Alberta Investment Management Corp500,000$5M1.4%2026-Q1
Governors Lane LP500,000$5M1.4%2026-Q1
ADAGE CAPITAL PARTNERS GP, L.L.C.500,000$5M1.4%2026-Q1
METEORA CAPITAL, LLC trimmed16,435$4M1.1%2026-Q1
MILLENNIUM MANAGEMENT LLC added400,000$4M1.1%2026-Q2
Periscope Capital Inc. trimmed364,669$4M1.0%2026-Q1
Westchester Capital Management, LLC350,000$3M1.0%2026-Q1
WHITEBOX ADVISORS LLC added300,000$3M0.8%2026-Q1
RIVERNORTH CAPITAL MANAGEMENT, LLC trimmed299,997$3M0.8%2026-Q1
Bulldog Investors, LLP trimmed253,272$3M0.7%2026-Q1
SYQUANT CAPITAL SAS250,000$2M0.7%2026-Q1
Clear Street Group Inc. trimmed200,481$2M0.5%2026-Q1
HRT FINANCIAL LP added152,361$2M0.4%2026-Q1
TORONTO DOMINION BANK new120,000$1M0.3%2026-Q1
MIZUHO SECURITIES USA LLC new117,219$1M0.3%2026-Q1
Lineage Point Capital LP trimmed105,000$1M0.3%2026-Q1
MARSHALL WACE, LLP100,000$1M0.3%2026-Q2
TIG Advisors, LLC100,000$996K0.3%2026-Q1
BlueCrest Capital Management Ltd100,000$996K0.3%2026-Q1
HighTower Advisors, LLC new99,999$989K0.3%2026-Q1
Mint Tower Capital Management B.V. trimmed83,333$824K0.2%2026-Q1
CANTOR FITZGERALD, L. P. added82,889$820K0.2%2026-Q1
HIGHBRIDGE CAPITAL MANAGEMENT LLC trimmed82,192$813K0.2%2026-Q1
DLD Asset Management, LP75,000$742K0.2%2026-Q1
Yakira Capital Management, Inc. trimmed73,454$732K0.2%2026-Q1
Kepos Capital LP new54,498$539K0.1%2026-Q1
PRELUDE CAPITAL MANAGEMENT, LLC50,000$498K0.1%2026-Q1
JPMORGAN CHASE & CO trimmed50,000$498K0.1%2026-Q1
Stoic Point Capital Management LLC50,000$498K0.1%2026-Q1
Ghisallo Capital Management LLC50,000$494K0.1%2026-Q1
L1 Global Manager Pty Ltd50,000$494K0.1%2026-Q1
Crossingbridge Advisors, LLC trimmed50,000$494K0.1%2026-Q1
Quarry LP25,000$249K0.1%2026-Q1
UBS Group AG added22,439$222K0.1%2026-Q1
DELTEC ASSET MANAGEMENT LLC trimmed19,950$197K0.1%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC new16,559$164K0.0%2026-Q1
FNY Investment Advisers, LLC added14,200$140K0.0%2026-Q1
Linden Advisors LP trimmed416,665$125K0.0%2026-Q1
Magnetar Financial LLC added416,664$117K0.0%2026-Q2
Polar Asset Management Partners Inc. trimmed450,000$117K0.0%2026-Q1
GLAZER CAPITAL, LLC trimmed449,998$113K0.0%2026-Q1
Timelo Investment Management Inc.10,000$100K0.0%2026-Q1
STATE OF WISCONSIN INVESTMENT BOARD10,000$99K0.0%2026-Q1
Ilex Capital Partners (UK) LLP trimmed239,686$72K0.0%2026-Q1
BNP PARIBAS FINANCIAL MARKETS trimmed202,863$61K0.0%2026-Q1
SONA ASSET MANAGEMENT (US) LLC new183,331$48K0.0%2026-Q1
D. E. Shaw & Co., Inc. trimmed166,666$47K0.0%2026-Q2
Wealthspring Capital LLC trimmed164,528$41K0.0%2026-Q1
CSS LLC/IL trimmed155,769$40K0.0%2026-Q1
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS new133,333$40K0.0%2026-Q1
Shaolin Capital Management LLC trimmed116,665$30K0.0%2026-Q1
MOORE CAPITAL MANAGEMENT, LP trimmed99,999$26K0.0%2026-Q1
BERKLEY W R CORP trimmed82,633$25K0.0%2026-Q1
HEIGHTS CAPITAL MANAGEMENT, INC trimmed83,333$22K0.0%2026-Q1
Schonfeld Strategic Advisors LLC trimmed33,333$10K0.0%2026-Q2
WOLVERINE ASSET MANAGEMENT LLC trimmed20,000$5K0.0%2026-Q1
Centiva Capital, LP trimmed16,666$4K0.0%2026-Q1
Virtu Financial LLC trimmed16,386$4K0.0%2026-Q1
ABC ARBITRAGE SA trimmed13,333$3K0.0%2026-Q1
ROYAL BANK OF CANADA trimmed5,090$1K0.0%2026-Q1
MORGAN STANLEY new16$1580.0%2026-Q1
Saba Capital Management, L.P. new949,600$9M2.6%2025-Q4 stale
KRYGER CAPITAL Ltd new125,000$1M0.3%2025-Q4 stale
StoneX Group Inc. new105,961$1M0.3%2025-Q4 stale
Tuttle Capital Management, LLC new30,000$300K0.1%2025-Q4 stale
Sandia Investment Management LP new25,000$250K0.1%2025-Q4 stale
JANE STREET GROUP, LLC new12,854$129K0.0%2025-Q4 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.

HoldersTotal shares

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.

Learn how to read institutional ownership