Who owns nLIGHT (LASR)
Which tracked institutional funds hold LASR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See LASR 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 LASR is one-sided between 2025-Q4 and 2026-Q1: 160 added or opened and 35 trimmed or exited — on balance accumulating.
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
LASR’s largest tracked holder by dollar value, BlackRock, 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 LASR more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in LASR 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 341 tracked filers holding LASR, 215 increased or opened the position and 130 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 LASR 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 46
- VANGUARD PORTFOLIO MANAGEMENT LLC$141M
- VANGUARD CAPITAL MANAGEMENT LLC$133M
- VAN ECK ASSOCIATES CORP$60M
- GILDER GAGNON HOWE & CO LLC$45M
- MOORE CAPITAL MANAGEMENT, LP$27M
- VANGUARD FIDUCIARY TRUST CO$20M
Full exits 10
- VANGUARD GROUP INC$187M
- MYDA Advisors LLC$9M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$5M
- Verition Fund Management LLC$1M
- FOX RUN MANAGEMENT, L.L.C.$1M
- TWO SIGMA ADVISERS, LP$919K
Largest adds
- BlackRock, Inc.$79M
- Driehaus Capital Management LLC$74M
- FMR LLC$58M
- NEEDHAM INVESTMENT MANAGEMENT LLC$40M
- ALLIANCEBERNSTEIN L.P.$40M
- GEODE CAPITAL MANAGEMENT, LLC$36M
Largest trims
- Senvest Management, LLC$24M
- Harvey Partners, LLC$22M
- D. E. Shaw & Co., Inc.$11M
- Portolan Capital Management, LLC$9M
- ArrowMark Colorado Holdings LLC$7M
- Squarepoint Ops LLC$6M
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. added | 4,879,159 | $340M | 11.2% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 2,467,570 | $141M | 4.6% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,325,430 | $133M | 4.4% | 2026-Q1 |
| Invesco Ltd. added | 1,641,651 | $114M | 3.8% | 2026-Q2 |
| NEEDHAM INVESTMENT MANAGEMENT LLC added | 1,922,740 | $110M | 3.6% | 2026-Q1 |
| Driehaus Capital Management LLC added | 1,772,697 | $101M | 3.3% | 2026-Q1 |
| STATE STREET CORP added | 1,278,751 | $89M | 2.9% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,441,046 | $82M | 2.7% | 2026-Q1 |
| FMR LLC trimmed | 1,062,847 | $74M | 2.4% | 2026-Q2 |
| Artisan Partners Limited Partnership trimmed | 1,077,786 | $61M | 2.0% | 2026-Q1 |
| VAN ECK ASSOCIATES CORP new | 1,048,325 | $60M | 2.0% | 2026-Q1 |
| AWM Investment Company, Inc. trimmed | 1,023,739 | $58M | 1.9% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC trimmed | 950,750 | $54M | 1.8% | 2026-Q1 |
| Hood River Capital Management LLC added | 922,979 | $53M | 1.7% | 2026-Q1 |
| GILDER GAGNON HOWE & CO LLC added | 786,285 | $45M | 1.5% | 2026-Q1 |
| PINNACLE ASSOCIATES LTD trimmed | 748,299 | $43M | 1.4% | 2026-Q1 |
| EMERALD ADVISERS, LLC trimmed | 746,674 | $43M | 1.4% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 1,106,148 | $41M | 1.4% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 720,589 | $41M | 1.4% | 2026-Q1 |
| ROYCE & ASSOCIATES LP trimmed | 654,519 | $37M | 1.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 529,520 | $37M | 1.2% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 585,387 | $33M | 1.1% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 564,109 | $32M | 1.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 449,531 | $31M | 1.0% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 449,024 | $31M | 1.0% | 2026-Q2 |
| Nuveen, LLC added | 545,872 | $31M | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP added | 518,414 | $30M | 1.0% | 2026-Q1 |
| Stephens Investment Management Group LLC trimmed | 496,331 | $28M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 492,880 | $28M | 0.9% | 2026-Q1 |
| MOORE CAPITAL MANAGEMENT, LP new | 465,000 | $27M | 0.9% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 457,065 | $26M | 0.9% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 444,052 | $25M | 0.8% | 2026-Q1 |
| EMERALD MUTUAL FUND ADVISERS TRUST | 429,772 | $25M | 0.8% | 2026-Q1 |
| Harvey Partners, LLC trimmed | 413,584 | $24M | 0.8% | 2026-Q1 |
| OBERWEIS ASSET MANAGEMENT INC/ added | 363,010 | $21M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 353,424 | $20M | 0.7% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 343,295 | $20M | 0.6% | 2026-Q1 |
| AIGH Capital Management LLC trimmed | 340,000 | $19M | 0.6% | 2026-Q1 |
| Apis Capital Advisors, LLC added | 330,000 | $19M | 0.6% | 2026-Q1 |
| MORGAN STANLEY trimmed | 324,099 | $18M | 0.6% | 2026-Q1 |
| ALGERT GLOBAL LLC trimmed | 321,661 | $18M | 0.6% | 2026-Q1 |
| Polar Capital Holdings Plc added | 319,923 | $18M | 0.6% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 319,206 | $18M | 0.6% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 250,400 | $17M | 0.6% | 2026-Q2 |
| SEI INVESTMENTS CO added | 291,788 | $17M | 0.5% | 2026-Q1 |
| ZEVENBERGEN CAPITAL INVESTMENTS LLC new | 285,560 | $16M | 0.5% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 284,440 | $16M | 0.5% | 2026-Q1 |
| UBS Group AG added | 278,182 | $16M | 0.5% | 2026-Q1 |
| PRIMECAP MANAGEMENT CO/CA/ trimmed | 225,539 | $16M | 0.5% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 255,957 | $15M | 0.5% | 2026-Q1 |
| BlueCrest Capital Management Ltd new | 255,000 | $15M | 0.5% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 253,492 | $14M | 0.5% | 2026-Q1 |
| Informed Momentum Co LLC trimmed | 246,778 | $14M | 0.5% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 245,001 | $14M | 0.5% | 2026-Q1 |
| Senvest Management, LLC trimmed | 239,454 | $14M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 235,398 | $13M | 0.4% | 2026-Q1 |
| Portolan Capital Management, LLC trimmed | 225,576 | $13M | 0.4% | 2026-Q1 |
| First Washington CORP trimmed | 217,051 | $12M | 0.4% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 175,200 | $12M | 0.4% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 204,089 | $12M | 0.4% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 203,845 | $12M | 0.4% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 196,898 | $11M | 0.4% | 2026-Q1 |
| Granahan Investment Management, LLC new | 185,271 | $11M | 0.3% | 2026-Q1 |
| HERALD INVESTMENT MANAGEMENT Ltd trimmed | 185,000 | $11M | 0.3% | 2026-Q1 |
| Granite Investment Partners, LLC trimmed | 177,359 | $10M | 0.3% | 2026-Q1 |
| LORD, ABBETT & CO. LLC trimmed | 171,081 | $10M | 0.3% | 2026-Q1 |
| POLEN CAPITAL MANAGEMENT LLC added | 133,448 | $9M | 0.3% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT added | 151,978 | $9M | 0.3% | 2026-Q1 |
| ArrowMark Colorado Holdings LLC trimmed | 151,023 | $9M | 0.3% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 120,666 | $8M | 0.3% | 2026-Q2 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 146,753 | $8M | 0.3% | 2026-Q1 |
| Mariner, LLC added | 140,032 | $8M | 0.3% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 113,418 | $8M | 0.3% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 138,049 | $8M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 134,384 | $8M | 0.3% | 2026-Q1 |
| Pier Capital, LLC trimmed | 129,178 | $7M | 0.2% | 2026-Q1 |
| Sender Co & Partners, Inc. added | 125,510 | $7M | 0.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 125,053 | $7M | 0.2% | 2026-Q1 |
| Ghisallo Capital Management LLC new | 125,000 | $7M | 0.2% | 2026-Q1 |
| AXIOM INVESTORS LLC /DE new | 119,085 | $7M | 0.2% | 2026-Q1 |
| HRT FINANCIAL LP added | 118,613 | $7M | 0.2% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 116,805 | $7M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 117,201 | $7M | 0.2% | 2026-Q1 |
| Hillsdale Investment Management Inc. added | 114,892 | $7M | 0.2% | 2026-Q1 |
| Lisanti Capital Growth, LLC trimmed | 97,558 | $6M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 95,500 | $5M | 0.2% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 94,435 | $5M | 0.2% | 2026-Q1 |
| Andar Capital Management HK Ltd new | 90,000 | $5M | 0.2% | 2026-Q1 |
| CASTLEARK MANAGEMENT LLC new | 89,850 | $5M | 0.2% | 2026-Q1 |
| Gotham Asset Management, LLC trimmed | 89,694 | $5M | 0.2% | 2026-Q1 |
| Divisar Capital Management LLC trimmed | 88,314 | $5M | 0.2% | 2026-Q1 |
| Trexquant Investment LP added | 86,833 | $5M | 0.2% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 68,368 | $5M | 0.2% | 2026-Q2 |
| Allianz Asset Management GmbH added | 82,551 | $5M | 0.2% | 2026-Q1 |
| VANGUARD GROUP INC added | 4,989,758 | $187M | 6.2% | 2025-Q4 stale |
| SEGALL BRYANT & HAMILL, LLC trimmed | 563,872 | $11M | 0.4% | 2025-Q2 stale |
| Marathon Asset Management Ltd trimmed | 366,148 | $11M | 0.4% | 2025-Q3 stale |
| MYDA Advisors LLC trimmed | 239,042 | $9M | 0.3% | 2025-Q4 stale |
| ACK Asset Management LLC new | 754,000 | $6M | 0.2% | 2025-Q1 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 141,254 | $5M | 0.2% | 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.
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.