Proto Labs Inc (PRLB) shareholders
PRLBNYSEFabricated Structural Metal ProductsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 29, 2026Score 14/3048% above fair value
$68.61−0.50 (-0.72%)
Close on Nov 12, 2026Market cap $1.64BP/E 48.0Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
94.2%
22M of 24M shares
Institutional holders
277
44 new, 25 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
2 buys · 15 sales
Net sold $3.39M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 3,553,868 | 15.00% | 13G (passive) amendment | Jun 30, 2025 |
| Disciplined Growth Investors Inc /Mn | 2,380,514 | 10.00% | 13G (passive) amendment | Jun 30, 2026 |
| Vanguard Portfolio Management | 1,548,595 | 6.51% | 13G (passive) | Mar 31, 2026 |
| Vanguard Capital Management | 1,213,755 | 5.10% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of PRLB | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 3,896,222 | 16.32% | $317.58M | +218,347 | 0.00% |
| Disciplined Growth Investors Inc /Mn | 2,380,514 | 9.97% | $194.04M | −116,841 | 3.29% |
| Vanguard Portfolio Management LLC | 1,599,765 | 6.70% | $130.40M | +61,235 | 0.01% |
| Dimensional Fund Advisors LP | 1,152,305 | 4.83% | $93.92M | −120,051 | 0.02% |
| State Street Corp | 1,138,462 | 4.77% | $92.80M | +46,462 | 0.00% |
| Vanguard Capital Management LLC | 1,054,623 | 4.42% | $85.96M | +14,882 | 0.00% |
| American Capital Management Inc | 619,845 | 2.60% | $50.52M | −7,860 | 2.27% |
| Geode Capital Management, LLC | 614,028 | 2.57% | $50.06M | +33,827 | 0.00% |
| Renaissance Technologies LLC | 469,251 | 1.97% | $38.25M | −51,000 | 0.05% |
| Prudential Financial Inc | 457,810 | 1.92% | $37.32M | +57,569 | 0.04% |
| FMR LLC | 442,659 | 1.85% | $36.08M | +20,303 | 0.00% |
| Arrowstreet Capital, Limited Partnership | 440,816 | 1.85% | $35.93M | −22,964 | 0.02% |
| Nuveen, LLC | 420,059 | 1.76% | $34.24M | +103,120 | 0.01% |
| Goldman Sachs Group Inc | 403,179 | 1.69% | $32.86M | +262,236 | 0.00% |
| Driehaus Capital Management LLC | 370,151 | 1.55% | $30.17M | +1,015 | 0.17% |
| Charles Schwab Investment Management Inc | 354,188 | 1.48% | $28.87M | −6,015 | 0.00% |
| Morgan Stanley | 314,778 | 1.32% | $25.66M | +21,197 | 0.00% |
| S Squared Technology, LLC | 288,120 | 1.21% | $23.48M | −7,983 | 7.29% |
| Northern Trust Corp | 284,562 | 1.19% | $23.19M | +17,611 | 0.00% |
| First Trust Advisors LP | 224,792 | 0.94% | $18.32M | +131,922 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 277 | 22M | 94.2% | 44 / 101 | 90 / 25 | 2M | 2M |
| Q1 2026 | 263 | 22M | 92.6% | 53 / 74 | 82 / 20 | 5M | 2M |
| Q4 2025 | 234 | 22M | 91.3% | 44 / 78 | 73 / 22 | 1M | 1M |
| Q3 2025 | 213 | 22M | 91.5% | 34 / 66 | 75 / 22 | 2M | 1M |
| Q2 2025 | 201 | 22M | 90.7% | 34 / 64 | 74 / 21 | 2M | 2M |
| Q1 2025 | 188 | 22M | 91.5% | 25 / 59 | 69 / 35 | 2M | 2M |
| Q4 2024 | 199 | 21M | 89.8% | 33 / 56 | 75 / 25 | 2M | 2M |
| Q3 2024 | 193 | 22M | 91.1% | 22 / 68 | 73 / 31 | 6M | 2M |
| Q2 2024 | 204 | 22M | 90.1% | 29 / 66 | 74 / 26 | 1M | 4M |
| Q1 2024 | 203 | 24M | 99.1% | 25 / 61 | 74 / 40 | 2M | 1M |
| Q4 2023 | 219 | 23M | 95.7% | 48 / 50 | 88 / 12 | 3M | 1M |
| Q3 2023 | 185 | 22M | 90.7% | 20 / 56 | 67 / 26 | 2M | 2M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
283 funds held PRLB in Q2 2026, 62% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of PRLB | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 1,433,817 | 6.01% | $116.87M | 0.10% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 756,865 | 3.17% | $61.69M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 629,419 | 2.64% | $51.30M | 0.06% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 545,167 | 2.28% | $44.44M | 0.02% | Jun 30, 2026 |
| Vanguard Small-Cap Value Index Fund | 345,675 | 1.45% | $28.18M | 0.04% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 272,990 | 1.14% | $22.25M | 0.02% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 263,840 | 1.11% | $19.80M | 0.06% | Jul 31, 2026 |
| iShares Russell 2000 Value ETF | 225,881 | 0.95% | $18.41M | 0.13% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF | 218,692 | 0.92% | $17.83M | 0.11% | Jun 30, 2026 |
| iShares S&P Small-Cap 600 Growth ETF | 213,759 | 0.90% | $17.42M | 0.21% | Jun 30, 2026 |
| The Disciplined Growth Investors Fund | 193,196 | 0.81% | $14.50M | 2.30% | Jul 31, 2026 |
| U.S. Small Cap Value Portfolio | 181,842 | 0.76% | $13.65M | 0.07% | Jul 31, 2026 |
| Vanguard Strategic Small-Cap Equity Fund | 169,433 | 0.71% | $13.81M | 0.44% | Jun 30, 2026 |
| U.S. Targeted Value Portfolio | 169,288 | 0.71% | $12.71M | 0.08% | Jul 31, 2026 |
| State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF | 165,766 | 0.69% | $13.51M | 0.47% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Suresh Krishna | President and CEO, Director | 30,897 | 0.13% | Nov 4, 2026 |
| Daniel Schumacher | Chief Financial Officer | 35,019 | 0.15% | Sep 25, 2026 |
| Salam Ramahi | Chief Operations Officer | – | – | Sep 10, 2026 |
| Bernardo Parlange | Chief Commercial Officer | 2,109 | 0.01% | May 22, 2026 |
| Michael R. Kenison | Chief Operations Officer | 30,671 | 0.13% | May 13, 2026 |
| Marc Kermisch | Chief Technology & AI Officer | 6,513 | 0.03% | Feb 27, 2026 |
| Oleg Ryaboy | Chief Technology Officer | 35,305 | 0.15% | Feb 27, 2025 |
| Robert Bodor | President and CEO | 108,579 | 0.45% | Feb 27, 2025 |
| Rainer Gawlick | Director | 46,813 | 0.20% | Nov 4, 2026 |
| Sven Wehrwein | Director | 32,505 | 0.14% | Jun 4, 2026 |
| Donald G. Krantz | Director | 26,863 | 0.11% | May 21, 2026 |
| Moonhie Chin | Director | 22,306 | 0.09% | May 21, 2026 |
| Sujeet Chand | Director | 26,863 | 0.11% | May 21, 2026 |
| Archie C. Black | Director | 28,428 | 0.12% | May 21, 2026 |
| Stacy Greiner | Director | 19,644 | 0.08% | May 28, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Rainer Gawlick Director | Nov 3, 2026 | Buy | +720 | $68.18 | $49.09K | 46,813 |
| Suresh Krishna President and CEO, Director | Nov 2, 2026 | Buy | +750 | $69.52 | $52.14K | 30,897 |
| Daniel Schumacher Chief Financial Officer | Sep 24, 2026 | Sale(10b5-1 plan) | −5,000 | $95.32 | $476.60K | 35,019 |
| Daniel Schumacher Chief Financial Officer | Sep 17, 2026 | Sale(10b5-1 plan) | −4,900 | $85.21 | $417.53K | 40,019 |
| Daniel Schumacher Chief Financial Officer | Sep 16, 2026 | Sale(10b5-1 plan) | −100 | $85.00 | $8.50K | 44,919 |
| Sven Wehrwein Director | Jun 2, 2026 | Sale | −500 | $78.38 | $39.19K | 32,505 |
| Sven Wehrwein Director | Jun 2, 2026 | Sale | −1,500 | $76.91 | $115.37K | 33,005 |
| Suresh Krishna President and CEO, Director | May 23, 2026 | Tax withholding | −1,247 | $71.36 | $88.99K | 30,147 |
| Daniel Schumacher Chief Financial Officer | May 20, 2026 | Tax withholding | −255 | $71.13 | $18.14K | 45,019 |
| Bernardo Parlange Chief Commercial Officer | May 20, 2026 | Award | +2,109 | – | – | 2,109 |
| Archie C. Black Director | May 19, 2026 | Award | +2,210 | – | – | 28,428 |
| Sven Wehrwein Director | May 19, 2026 | Award | +2,210 | – | – | 34,505 |
| Rainer Gawlick Director | May 19, 2026 | Award | +2,210 | – | – | 46,093 |
| Moonhie Chin Director | May 19, 2026 | Award | +2,210 | – | – | 22,306 |
| Donald G. Krantz Director | May 19, 2026 | Award | +2,210 | – | – | 26,863 |
| Sujeet Chand Director | May 19, 2026 | Award | +2,210 | – | – | 26,863 |
| Michael R. Kenison Chief Operations Officer | May 12, 2026 | Option exercise | +1,557 | $39.61 | $61.67K | 30,671 |
| Michael R. Kenison Chief Operations Officer | May 12, 2026 | Sale(10b5-1 plan) | −3,576 | $69.78 | $249.53K | 25,326 |
| Michael R. Kenison Chief Operations Officer | May 12, 2026 | Sale(10b5-1 plan) | −4,198 | $68.70 | $288.40K | 28,902 |
| Michael R. Kenison Chief Operations Officer | May 12, 2026 | Sale(10b5-1 plan) | −1,613 | $67.58 | $109.01K | 33,100 |
| Michael R. Kenison Chief Operations Officer | May 12, 2026 | Option exercise | +4,042 | $59.40 | $240.09K | 34,713 |
| Michael R. Kenison Chief Operations Officer | May 12, 2026 | Sale(10b5-1 plan) | −6,643 | $70.30 | $467.00K | 18,683 |
| Michael R. Kenison Chief Operations Officer | May 12, 2026 | Option exercise | +1,928 | $33.84 | $65.24K | 29,114 |
| Michael R. Kenison Chief Operations Officer | May 11, 2026 | Option exercise | +3,756 | $33.84 | $127.10K | 30,942 |
| Michael R. Kenison Chief Operations Officer | May 11, 2026 | Sale(10b5-1 plan) | −7,433 | $70.26 | $522.24K | 27,186 |
| Michael R. Kenison Chief Operations Officer | May 11, 2026 | Option exercise | +3,677 | $33.52 | $123.25K | 34,619 |
| Michael R. Kenison Chief Operations Officer | May 7, 2026 | Sale(10b5-1 plan) | −200 | $70.00 | $14.00K | 27,186 |
| Michael R. Kenison Chief Operations Officer | May 7, 2026 | Option exercise | +100 | $33.52 | $3.35K | 27,386 |
| Michael R. Kenison Chief Operations Officer | May 7, 2026 | Option exercise | +100 | $33.84 | $3.38K | 27,286 |
| Suresh Krishna President and CEO, Director | Feb 25, 2026 | Award | +13,373 | – | – | 31,394 |
| Daniel Schumacher Chief Financial Officer | Feb 25, 2026 | Award | +3,074 | – | – | 45,778 |
| Daniel Schumacher Chief Financial Officer | Feb 25, 2026 | Tax withholding | −504 | $62.63 | $31.57K | 45,274 |
| Marc Kermisch Chief Technology & AI Officer | Feb 25, 2026 | Award | +2,795 | – | – | 6,513 |
| Michael R. Kenison Chief Operations Officer | Feb 25, 2026 | Tax withholding | −531 | $62.63 | $33.26K | 27,186 |
| Michael R. Kenison Chief Operations Officer | Feb 25, 2026 | Award | +2,415 | – | – | 27,717 |
| Michael R. Kenison Chief Operations Officer | Feb 17, 2026 | Sale(10b5-1 plan) | −5,000 | $66.46 | $332.30K | 25,302 |
| Daniel Schumacher Chief Financial Officer | Feb 13, 2026 | Tax withholding | −1,267 | $67.52 | $85.55K | 42,704 |
| Michael R. Kenison Chief Operations Officer | Feb 13, 2026 | Tax withholding | −1,540 | $67.52 | $103.98K | 30,302 |
| Daniel Schumacher Chief Financial Officer | Feb 11, 2026 | Option exercise | +3,135 | $33.84 | $106.09K | 43,971 |
| Daniel Schumacher Chief Financial Officer | Feb 10, 2026 | Tax withholding | −6,809 | $53.18 | $362.10K | 40,836 |
| Michael R. Kenison Chief Operations Officer | Feb 10, 2026 | Tax withholding | −2,684 | $53.18 | $142.74K | 31,842 |
| Michael R. Kenison Chief Operations Officer | Feb 6, 2026 | Sale(10b5-1 plan) | −2,500 | $60.00 | $150.00K | 34,526 |
| Michael R. Kenison Chief Operations Officer | Jan 29, 2026 | Award | +8,128 | – | – | 37,026 |
| Daniel Schumacher Chief Financial Officer | Jan 29, 2026 | Award | +20,686 | – | – | 47,645 |
| Michael R. Kenison Chief Operations Officer | Nov 25, 2025 | Option exercise | +3,048 | $33.84 | $103.14K | 31,946 |
| Michael R. Kenison Chief Operations Officer | Nov 25, 2025 | Sale(10b5-1 plan) | −3,048 | $50.17 | $152.92K | 28,898 |
| Michael R. Kenison Chief Operations Officer | Nov 25, 2025 | Sale(10b5-1 plan) | −3,048 | $50.17 | $152.92K | 28,898 |
| Michael R. Kenison Chief Operations Officer | Nov 25, 2025 | Option exercise | +3,048 | $33.84 | $103.14K | 31,946 |
| Marc Kermisch Chief Technology & AI Officer | Nov 17, 2025 | Award | +3,718 | – | – | 3,718 |
| Rainer Gawlick Director | Aug 5, 2025 | Buy | +1,715 | $43.79 | $75.10K | 43,883 |
| Suresh Krishna President and CEO, Director | Aug 4, 2025 | Buy | +1,725 | $43.51 | $75.05K | 18,021 |
| Suresh Krishna President and CEO, Director | May 23, 2025 | Award | +16,296 | – | – | 16,296 |
| Sujeet Chand Director | May 23, 2025 | Award | +3,939 | – | – | 24,653 |
| Stacy Greiner Director | May 23, 2025 | Award | +3,939 | – | – | 19,644 |
| Sven Wehrwein Director | May 23, 2025 | Award | +3,939 | – | – | 32,295 |
| Moonhie Chin Director | May 23, 2025 | Award | +3,939 | – | – | 20,096 |
| Archie C. Black Director | May 23, 2025 | Award | +3,939 | – | – | 26,218 |
| Donald G. Krantz Director | May 23, 2025 | Award | +3,939 | – | – | 24,653 |
| Rainer Gawlick Director | May 23, 2025 | Award | +3,939 | – | – | 42,168 |
| Michael R. Kenison Chief Operations Officer | May 20, 2025 | Tax withholding | −204 | $40.87 | $8.34K | 28,841 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
2.63%
1M shares short
Days to cover
2.4
At 0M shares a day
Change since last report
-5.7%
From 1M shares
Short volume, 20 days
57.0%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Proto Labs's stock actually held short. Settlement fails (shares not delivered on time) peaked at 50 shares on Sep 16, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Michael R. Kenison Former Officer | Sep 25, 2026 | 1,143 | $109.49K | Sep 25, 2026 | Exercise of Options Under a Registered Plan |
| Michael R. Kenison Former Officer | Sep 24, 2026 | 1,800 | $172.53K | Sep 24, 2026 | Exercise of Options Under a Registered Plan |
| Daniel Schumacher Officer | Sep 24, 2026 | 5,000 | $445.65K | Sep 24, 2026 | Restricted Stock Units |
| Daniel Schumacher Officer | Sep 17, 2026 | 4,900 | $407.88K | Sep 17, 2026 | Restricted Stock Units |
| Daniel Schumacher Officer | Sep 16, 2026 | 100 | $7.91K | Sep 16, 2026 | Restricted Stock Units |
| Michael R. Kenison Former Officer | Aug 4, 2026 | 10,753 | $947.79K | Aug 4, 2026 | Restricted Stock Vesting Under a Registered Plan |
| Sven Wehrwein Director | Jun 1, 2026 | 2,000 | $151.90K | Jun 1, 2026 | Stock Award |
| Michael R. Kenison Officer | May 12, 2026 | 16,030 | $1.11M | May 12, 2026 | Exercise of options under a registered plan |
| Michael R. Kenison Officer | May 11, 2026 | 7,433 | $515.11K | May 11, 2026 | Exercise of Stock Options |
| Michael R. Kenison Officer | May 7, 2026 | 200 | $13.78K | May 7, 2026 | Exercise of Stock Options |
| Michael R. Kenison Officer | Feb 6, 2026 | 7,500 | $393.60K | Feb 6, 2026 | Restricted Stock Units |
| Oleg Ryaboy Former Officer | Jan 16, 2026 | 368 | $20.17K | Jan 16, 2026 | Shares Purchased through Employee Stock Purchase Plan |
| Oleg Ryaboy Former Officer | Jan 15, 2026 | 7,178 | $393.33K | Jan 15, 2026 | Exercise of options under a registered plan |
| Oleg Ryaboy Former Officer | Jan 8, 2026 | 7,026 | $384.41K | Jan 8, 2026 | Exercise of options under a registered plan |
| Oleg Ryaboy Former Officer | Jan 7, 2026 | 6,669 | $357.33K | Jan 7, 2026 | Exercise of options under a registered plan |
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