Who owns DMC Global Inc. (BOOM)
Which tracked institutional funds hold BOOM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BOOM 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.
How the tape is positioned
The tracked-fund tape on BOOM is one-sided between 2025-Q4 and 2026-Q1: 7 added or opened and 24 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
BOOM’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes BOOM more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in BOOM 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 122 tracked filers holding BOOM, 64 increased or opened the position and 59 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 BOOM 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 3
- VANGUARD CAPITAL MANAGEMENT LLC$4M
- VANGUARD PORTFOLIO MANAGEMENT LLC$3M
- VANGUARD FIDUCIARY TRUST CO$580K
Full exits 1
- VANGUARD GROUP INC$9M
Largest adds
- MACKENZIE FINANCIAL CORP$752K
- ACADIAN ASSET MANAGEMENT LLC$451K
- GSA CAPITAL PARTNERS LLP$400K
- MORGAN STANLEY$254K
Largest trims
- COOKE & BIELER LP$9M
- STEEL PARTNERS HOLDINGS L.P.$7M
- BlackRock, Inc.$2M
- FEDERATED HERMES, INC.$2M
- PRUDENTIAL FINANCIAL INC$1M
- AMERIPRISE FINANCIAL 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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 1,416,998 | $7M | 7.7% | 2026-Q1 |
| STEEL PARTNERS HOLDINGS L.P. trimmed | 1,194,441 | $6M | 6.5% | 2026-Q1 |
| GENDELL JEFFREY L added | 1,002,790 | $5M | 5.4% | 2026-Q1 |
| Pacific Ridge Capital Partners, LLC added | 804,618 | $4M | 4.3% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 787,570 | $4M | 4.3% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 784,693 | $4M | 4.2% | 2026-Q1 |
| COOKE & BIELER LP trimmed | 747,692 | $4M | 4.0% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 651,838 | $3M | 3.5% | 2026-Q1 |
| Cerity Partners LLC added | 535,920 | $3M | 2.9% | 2026-Q1 |
| MACKENZIE FINANCIAL CORP added | 519,209 | $3M | 2.8% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 514,718 | $3M | 2.8% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 464,345 | $2M | 2.5% | 2026-Q1 |
| STATE STREET CORP added | 416,086 | $2M | 2.2% | 2026-Q1 |
| FEDERATED HERMES, INC. trimmed | 345,852 | $2M | 1.9% | 2026-Q1 |
| HUNTER ASSOCIATES INVESTMENT MANAGEMENT LLC added | 332,985 | $2M | 1.8% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 300,162 | $2M | 1.6% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 247,406 | $1M | 1.3% | 2026-Q1 |
| MORGAN STANLEY added | 231,752 | $1M | 1.3% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC trimmed | 181,970 | $948K | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP added | 158,816 | $827K | 0.9% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 148,084 | $772K | 0.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 147,671 | $769K | 0.8% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 134,968 | $703K | 0.7% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 124,184 | $647K | 0.7% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 122,182 | $637K | 0.7% | 2026-Q1 |
| Empowered Funds, LLC trimmed | 118,865 | $619K | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 111,306 | $580K | 0.6% | 2026-Q1 |
| Villanova Investment Management Co LLC trimmed | 110,458 | $575K | 0.6% | 2026-Q1 |
| WINTON GROUP Ltd added | 107,579 | $560K | 0.6% | 2026-Q1 |
| STRS OHIO added | 105,800 | $551K | 0.6% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 103,837 | $537K | 0.6% | 2026-Q1 |
| Quantinno Capital Management LP added | 90,540 | $472K | 0.5% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 90,421 | $471K | 0.5% | 2026-Q1 |
| PANAGORA ASSET MANAGEMENT INC added | 85,538 | $446K | 0.5% | 2026-Q1 |
| GABELLI FUNDS LLC trimmed | 82,496 | $430K | 0.4% | 2026-Q1 |
| SummerHaven Investment Management, LLC trimmed | 77,620 | $404K | 0.4% | 2026-Q1 |
| Focus Partners Wealth trimmed | 1,354 | $372K | 0.4% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 69,715 | $363K | 0.4% | 2026-Q1 |
| DEUTSCHE BANK AG\ | 65,706 | $342K | 0.4% | 2026-Q1 |
| PRELUDE CAPITAL MANAGEMENT, LLC added | 59,571 | $310K | 0.3% | 2026-Q1 |
| Nuveen, LLC added | 57,889 | $302K | 0.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 56,929 | $297K | 0.3% | 2026-Q1 |
| Invesco Ltd. added | 53,120 | $277K | 0.3% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 52,849 | $276K | 0.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 51,114 | $266K | 0.3% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 32,770 | $219K | 0.2% | 2026-Q1 |
| Olympiad Research LP | 38,314 | $200K | 0.2% | 2026-Q1 |
| ALGERT GLOBAL LLC trimmed | 36,420 | $190K | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 32,227 | $168K | 0.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 30,775 | $160K | 0.2% | 2026-Q1 |
| Engineers Gate Manager LP trimmed | 27,000 | $141K | 0.1% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 25,200 | $131K | 0.1% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 25,146 | $131K | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 24,994 | $130K | 0.1% | 2026-Q1 |
| Vident Advisory, LLC new | 24,918 | $130K | 0.1% | 2026-Q1 |
| Lakewood Asset Management LLC added | 23,912 | $125K | 0.1% | 2026-Q1 |
| XTX Topco Ltd added | 22,686 | $118K | 0.1% | 2026-Q1 |
| GABELLI & Co INVESTMENT ADVISERS, INC. trimmed | 21,630 | $113K | 0.1% | 2026-Q1 |
| Orchard Capital Management, LLC | 21,152 | $110K | 0.1% | 2026-Q1 |
| Virtu Financial LLC new | 20,899 | $109K | 0.1% | 2026-Q1 |
| Kerrisdale Advisers, LLC | 20,492 | $107K | 0.1% | 2026-Q1 |
| JBF Capital, Inc. | 20,000 | $104K | 0.1% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 19,973 | $104K | 0.1% | 2026-Q1 |
| MERCER GLOBAL ADVISORS INC /ADV new | 18,745 | $98K | 0.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 18,641 | $97K | 0.1% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | 18,383 | $96K | 0.1% | 2026-Q1 |
| Inscription Capital, LLC added | 18,154 | $95K | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 17,764 | $93K | 0.1% | 2026-Q1 |
| FNY Investment Advisers, LLC added | 15,980 | $83K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 1,382,978 | $9M | 9.6% | 2025-Q4 stale |
| Voss Capital, LP trimmed | 331,911 | $3M | 2.9% | 2025-Q1 stale |
| Invenomic Capital Management LP trimmed | 171,259 | $1M | 1.5% | 2025-Q1 stale |
| AMH Equity Ltd new | 100,000 | $845K | 0.9% | 2025-Q3 stale |
| Man Group plc trimmed | 69,753 | $467K | 0.5% | 2025-Q4 stale |
| VICTORY CAPITAL MANAGEMENT INC added | 53,561 | $453K | 0.5% | 2025-Q3 stale |
| PenderFund Capital Management Ltd. new | 13,800 | $451K | 0.5% | 2025-Q1 stale |
| HAP Trading, LLC trimmed | 50,970 | $429K | 0.4% | 2025-Q1 stale |
| Caption Management, LLC added | 48,776 | $411K | 0.4% | 2025-Q1 stale |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC trimmed | 42,610 | $360K | 0.4% | 2025-Q3 stale |
| Integrated Quantitative Investments LLC new | 52,380 | $350K | 0.4% | 2025-Q4 stale |
| Legato Capital Management LLC added | 52,380 | $350K | 0.4% | 2025-Q4 stale |
| TUDOR INVESTMENT CORP ET AL trimmed | 49,077 | $328K | 0.3% | 2025-Q4 stale |
| Inspire Advisors, LLC trimmed | 32,314 | $273K | 0.3% | 2025-Q3 stale |
| Petrus Trust Company, LTA added | 32,970 | $266K | 0.3% | 2025-Q2 stale |
| Kapitalo Investimentos Ltda new | 29,865 | $241K | 0.2% | 2025-Q2 stale |
| Squarepoint Ops LLC added | 25,278 | $213K | 0.2% | 2025-Q1 stale |
| LOS ANGELES CAPITAL MANAGEMENT LLC trimmed | 25,090 | $212K | 0.2% | 2025-Q4 stale |
| Deuterium Capital Management, LLC | 23,000 | $194K | 0.2% | 2025-Q1 stale |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 23,738 | $191K | 0.2% | 2025-Q2 stale |
| Tabor Asset Management, LP new | 19,700 | $166K | 0.2% | 2025-Q1 stale |
| MILLENNIUM MANAGEMENT LLC trimmed | 18,347 | $148K | 0.2% | 2025-Q2 stale |
| PharVision Advisers, LLC trimmed | 20,078 | $134K | 0.1% | 2025-Q4 stale |
| Verition Fund Management LLC trimmed | 13,815 | $117K | 0.1% | 2025-Q3 stale |
| WOLVERINE TRADING, LLC trimmed | 13,797 | $116K | 0.1% | 2025-Q1 stale |
| MetLife Investment Management, LLC trimmed | 11,727 | $99K | 0.1% | 2025-Q3 stale |
| SG Americas Securities, LLC added | 10,763 | $91K | 0.1% | 2025-Q3 stale |
| Jump Financial, LLC trimmed | 13,321 | $89K | 0.1% | 2025-Q4 stale |
| INTECH INVESTMENT MANAGEMENT LLC trimmed | 10,979 | $88K | 0.1% | 2025-Q2 stale |
| VAN DEN BERG MANAGEMENT I, INC trimmed | 10,209 | $86K | 0.1% | 2025-Q3 stale |
| Corebridge Financial, Inc. trimmed | 9,609 | $81K | 0.1% | 2025-Q1 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.