Latest Period
Q1 2026
Security Snapshot
Proto Labs Inc - Common Stock (PRLB) Institutional Ownership
CUSIP: 743713109
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
262
Shares (Excl. Options)
22,073,880
Price
$57.02
Save this security page for your next review
Keep this CUSIP in your watchlists so you can revisit quarter changes from one place. If you create an account from here, we will bring you back after verification.
- Security type / class
- Equity / Common Stock
- Symbol
- PRLB on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 22,073,880
- Total 13F value
- $1,258,122,694
- Portfolio coverage rank
- 0%
- Share change
- +233,353
- Value change
- +$14,355,448
- Number of holders
- 262
- Shares outstanding
- 23,784,333
- SEC-reported price per share
- $72.01
- Insider filing price
- $72.01
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- PRLB - Proto Labs Inc - Common Stock is tracked under CUSIP 743713109.
- 262 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 234 to 262 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $1,101,483,954 to $1,258,122,694.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 262 institutions filings for Q1 2026.
Security key
743713109
Latest holder period
Q1 2026
13F holders
262
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
PRLB full holder history
Proto Labs Inc SEC filings
Proto Labs Inc company facts
Proto Labs Inc insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 743713109:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
PRLB
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | $142,296,875 | 3,553,868 | BlackRock, Inc. | 30 Jun 2025 | |||
| DISCIPLINED GROWTH INVESTORS INC /MN | 10% | -7.3% | $142,399,182 | -$10,056,845 | 2,497,355 | -6.6% | DISCIPLINED GROWTH INVESTORS INC /MN | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.5% | $88,300,887 | 1,548,595 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| DIMENSIONAL FUND ADVISORS LP | 5.3% | $46,037,577 | 1,300,864 | Dimensional Fund Advisors LP | 31 Dec 2024 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 5.1% | $69,208,310 | 1,213,755 | Vanguard Capital Management | 31 Mar 2026 |
As of 31 Mar 2026, 262 institutional investors reported holding 22,073,880 shares of Proto Labs Inc - Common Stock (PRLB). This represents 93% of the company’s total 23,784,333 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
74%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | 3,677,875 | +1.6% | 0% | $209,712,432 |
| DISCIPLINED GROWTH INVESTORS INC /MN | 11% | 2,497,355 | -6.6% | 2.9% | $142,399,182 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.5% | 1,538,530 | 0% | 0% | $87,726,981 |
| DIMENSIONAL FUND ADVISORS LP | 5.3% | 1,272,356 | -0.33% | 0.02% | $72,547,694 |
| STATE STREET CORP | 4.6% | 1,092,000 | +0.35% | 0% | $62,265,840 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.4% | 1,039,741 | 0% | 0% | $59,286,032 |
| AMERICAN CAPITAL MANAGEMENT INC | 2.6% | 627,705 | -0.57% | 1.9% | $35,791,739 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 580,201 | +3.9% | 0% | $33,089,796 |
| RENAISSANCE TECHNOLOGIES LLC | 2.2% | 520,251 | +5.4% | 0.05% | $29,664,712 |
| Rubric Capital Management LP | 2% | 486,400 | -57% | 0.34% | $27,734,528 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.9% | 463,780 | +0.69% | 0.01% | $26,444,736 |
| FMR LLC | 1.8% | 422,356 | +246% | 0% | $24,082,734 |
| PRUDENTIAL FINANCIAL INC | 1.7% | 400,241 | +119% | 0.03% | $22,821,742 |
| Driehaus Capital Management LLC | 1.6% | 369,136 | -3.4% | 0.15% | $21,048,135 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.5% | 360,203 | -0.77% | 0% | $20,538,775 |
| Nuveen, LLC | 1.3% | 316,939 | -2.7% | 0% | $18,071,862 |
| S SQUARED TECHNOLOGY, LLC | 1.2% | 296,103 | -3.3% | 6.4% | $16,883,793 |
| MORGAN STANLEY | 1.2% | 293,581 | -3.9% | 0% | $16,740,055 |
| NORTHERN TRUST CORP | 1.1% | 266,951 | +4.2% | 0% | $15,221,546 |
| D. E. Shaw & Co., Inc. | 0.95% | 225,651 | +6% | 0.01% | $12,866,620 |
| NORDEA INVESTMENT MANAGEMENT AB | 0.9% | 214,381 | -4.5% | 0.01% | $11,992,473 |
| JUPITER ASSET MANAGEMENT LTD | 0.82% | 194,832 | 0% | 0.06% | $11,109,321 |
| PANAGORA ASSET MANAGEMENT INC | 0.73% | 174,698 | -0.51% | 0.04% | $9,961,280 |
| Hillsdale Investment Management Inc. | 0.73% | 174,384 | +3.6% | 0.27% | $9,943,376 |
| UBS Group AG | 0.71% | 168,750 | -3.8% | 0% | $9,622,125 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 22,073,880 | $1,258,122,694 | +$14,355,448 | $57.02 | 262 |
| 2025 Q4 | 21,768,604 | $1,101,483,954 | +$1,524,192 | $50.59 | 234 |
| 2025 Q3 | 21,734,265 | $1,087,223,760 | +$7,578,886 | $50.03 | 211 |
| 2025 Q2 | 21,644,811 | $866,661,340 | -$3,320,676 | $40.04 | 199 |
| 2025 Q1 | 21,833,014 | $764,932,838 | +$12,721,358 | $35.04 | 188 |
| 2024 Q4 | 21,413,334 | $837,171,404 | -$1,936,132 | $39.09 | 198 |
| 2024 Q3 | 21,601,786 | $634,296,323 | +$12,457,335 | $29.37 | 193 |
| 2024 Q2 | 21,463,987 | $662,934,572 | -$6,290,130 | $30.89 | 205 |
| 2024 Q1 | 21,664,592 | $774,219,900 | -$2,861,632 | $35.75 | 203 |
| 2023 Q4 | 21,716,420 | $845,829,890 | +$100,687 | $38.96 | 218 |
| 2023 Q3 | 21,644,485 | $571,391,110 | -$27,189,078 | $26.40 | 183 |
| 2023 Q2 | 22,185,087 | $775,566,005 | -$12,018,822 | $34.96 | 190 |
| 2023 Q1 | 22,494,016 | $745,535,696 | -$15,435,457 | $33.15 | 195 |
| 2022 Q4 | 23,287,357 | $594,563,505 | -$42,744,310 | $25.53 | 193 |
| 2022 Q3 | 24,260,677 | $881,194,677 | -$8,850,441 | $36.43 | 189 |
| 2022 Q2 | 24,466,497 | $1,162,030,563 | -$6,352,462 | $47.84 | 207 |
| 2022 Q1 | 24,694,338 | $1,306,191,660 | -$36,560,161 | $52.90 | 217 |
| 2021 Q4 | 25,371,389 | $1,303,565,237 | -$166,847,087 | $51.35 | 222 |
| 2021 Q3 | 28,263,246 | $1,882,987,161 | -$47,769,900 | $66.60 | 248 |
| 2021 Q2 | 28,727,914 | $2,635,481,077 | -$14,885,666 | $91.80 | 260 |
| 2021 Q1 | 28,551,256 | $3,475,713,832 | -$300,436,753 | $121.75 | 303 |
| 2020 Q4 | 30,946,840 | $4,747,961,335 | +$157,898,016 | $153.40 | 296 |
| 2020 Q3 | 30,073,363 | $3,893,761,408 | +$1,972,542 | $129.50 | 274 |
| 2020 Q2 | 30,050,881 | $3,370,920,361 | +$27,692,547 | $112.47 | 274 |
| 2020 Q1 | 29,855,726 | $2,273,297,211 | +$94,366,862 | $76.13 | 220 |