Who owns Proto Labs Inc?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of PRLB from SEC Form 13F filings across 277 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 277 institutions disclosed 22.5M shares of Proto Labs Inc worth $1.83B — about 93.7% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
277
13F holders
$1.83B
value, 2026 filers
93.7%
of shares outstanding (22.5M sh)
45
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of PRLB's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 3.9M | $317.6M | 0.0% | 16.3% | +5.9% |
| 2 | DISCIPLINED GROWTH INVESTORS INC /MN | 2.4M | $194.0M | 3.3% | 9.9% | -4.7% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.6M | $130.4M | 0.0% | 6.7% | +4.0% |
| 4 | DIMENSIONAL FUND ADVISORS LP | 1.2M | $93.9M | 0.0% | 4.8% | -9.4% |
| 5 | STATE STREET CORP | 1.1M | $92.8M | 0.0% | 4.7% | +4.3% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.1M | $86.0M | 0.0% | 4.4% | +1.4% |
| 7 | AMERICAN CAPITAL MANAGEMENT INC | 619,845 | $50.5M | 2.3% | 2.6% | -1.3% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 614,028 | $50.1M | 0.0% | 2.6% | +5.8% |
| 9 | RENAISSANCE TECHNOLOGIES LLC | 469,251 | $38.2M | 0.1% | 2% | -9.8% |
| 10 | PRUDENTIAL FINANCIAL INC | 457,810 | $37.3M | 0.0% | 1.9% | +14.4% |
| 11 | FMR LLC | 442,659 | $36.1M | 0.0% | 1.8% | +4.8% |
| 12 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 440,816 | $35.9M | 0.0% | 1.8% | -5.0% |
| 13 | Nuveen, LLC | 420,059 | $34.2M | 0.0% | 1.8% | +32.5% |
| 14 | GOLDMAN SACHS GROUP INC | 403,179 | $32.9M | 0.0% | 1.7% | +186.1% |
| 15 | Driehaus Capital Management LLC | 370,151 | $30.2M | 0.2% | 1.5% | +0.3% |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 354,188 | $28.9M | 0.0% | 1.5% | -1.7% |
| 17 | MORGAN STANLEY | 314,778 | $25.7M | 0.0% | 1.3% | +7.2% |
| 18 | S SQUARED TECHNOLOGY, LLC | 288,120 | $23.5M | 7.3% | 1.2% | -2.7% |
| 19 | NORTHERN TRUST CORP | 284,562 | $23.2M | 0.0% | 1.2% | +6.6% |
| 20 | FIRST TRUST ADVISORS LP | 224,792 | $18.3M | 0.0% | 0.9% | +142.1% |
| 21 | JPMORGAN CHASE & CO | 224,717 | $17.9M | 0.0% | 0.9% | +156.6% |
| 22 | D. E. Shaw & Co., Inc. | 211,366 | $17.2M | 0.0% | 0.9% | -6.3% |
| 23 | NORDEA INVESTMENT MANAGEMENT AB | 203,883 | $16.5M | 0.0% | 0.9% | -4.9% |
| 24 | Hillsdale Investment Management Inc. | 191,594 | $15.6M | 0.4% | 0.8% | +9.9% |
| 25 | JUPITER ASSET MANAGEMENT LTD | 188,539 | $15.4M | 0.1% | 0.8% | -3.2% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.