Security key
743713109
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 30,050,881
- Total 13F value
- $3,370,920,361
- Share change
- +195,586
- Put/Call ratio
- 35%
- SEC-reported price per share
- $112.47
- Number of holders
- 274
- Value change
- +$27,692,547
- Number of buys
- 146
- Number of sells
- 98
- Shares outstanding
- 24,006,354
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2020
Institutions
274
Top holders
10
PRLB full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Proto Labs Inc SEC filings
Proto Labs Inc company facts
Broader feeds
Reporting periods
Holder history for CUSIP 743713109
Recent filing periods:
Ownership snapshot
Top reported holders of PRLB - Proto Labs Inc - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
15/15
Latest evidence
31 Mar 2020
13F
Lead comparable stake: 17%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. leads the comparable SEC ownership view at 17%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock Finance, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock Finance, Inc.
17%
BROWN CAPITAL MANAGEMENT LLC
16%
VANGUARD GROUP INC
11%
ARK Investment Management LLC
6.7%
HARDING LOEVNER LP
6.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
17%
|
$310,000,000
4,071,967 shares
|
— | 31 Mar 2020 |
| BROWN CAPITAL MANAGEMENT LLC |
13F
Company
|
16%
|
$288,017,000
3,783,224 shares
|
— | 31 Mar 2020 |
| VANGUARD GROUP INC |
13F
Company
|
11%
|
$208,886,000
2,743,804 shares
|
— | 31 Mar 2020 |
| ARK Investment Management LLC |
13F
Company
|
6.7%
|
$122,012,000
1,602,676 shares
|
— | 31 Mar 2020 |
| HARDING LOEVNER LP |
13F
Company
|
6.4%
|
$117,822,000
1,547,631 shares
|
— | 31 Mar 2020 |
| RIVERBRIDGE PARTNERS LLC |
13F
Company
|
6.3%
|
$114,737,000
1,507,122 shares
|
— | 31 Mar 2020 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2020
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
274
Shares
30,050,881
Rows available
274
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2020 vs Q1 2020 Across Filers
Q1 2020 holders
220
Q2 2020 holders
274
Holder diff
54
| Investor | Q1 2020 Shares | Q2 2020 Shares | Share Diff | Share Chg % | Q1 2020 value | Q2 2020 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend