Security key
743713109
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 28,263,246
- Total 13F value
- $1,882,987,161
- Share change
- -499,294
- Put/Call ratio
- 138%
- SEC-reported price per share
- $66.60
- Number of holders
- 248
- Value change
- -$47,769,900
- Number of buys
- 115
- Number of sells
- 129
- Shares outstanding
- 23,805,140
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
Q3 2021
Institutions
248
Top holders
10
PRLB full security history
Ownership snapshot
Full 13F holder table
Proto Labs Inc SEC filings
Proto Labs Inc company facts
Broader feeds
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
30 Jun 2021
13F
Lead comparable stake: 19%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. leads the comparable SEC ownership view at 19%.
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.
19%
ARK Investment Management LLC
13%
VANGUARD GROUP INC
12%
BROWN CAPITAL MANAGEMENT LLC
9.7%
Amova Asset Management Americas, ...
8.8%
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
|
19%
|
$411,872,000
4,486,625 shares
|
— | 30 Jun 2021 |
| ARK Investment Management LLC |
13F
Company
|
13%
|
$278,212,000
3,030,630 shares
|
— | 30 Jun 2021 |
| VANGUARD GROUP INC |
13F
Company
|
12%
|
$266,224,000
2,900,047 shares
|
— | 30 Jun 2021 |
| BROWN CAPITAL MANAGEMENT LLC |
13F
Company
|
9.7%
|
$212,170,000
2,311,222 shares
|
— | 30 Jun 2021 |
| Amova Asset Management Americas, Inc. |
13F
Company
|
8.8%
|
$189,692,000
2,086,823 shares
|
— | 30 Jun 2021 |
| Sumitomo Mitsui Trust Group, Inc. |
13F
Company
|
8.8%
|
$191,540,000
2,086,497 shares
|
— | 30 Jun 2021 |
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 Q3 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
248
Shares
28,263,246
Rows available
248
| 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 Q3 2021 vs Q2 2021 Across Filers
Q2 2021 holders
260
Q3 2021 holders
248
Holder diff
-12
| Investor | Q2 2021 Shares | Q3 2021 Shares | Share Diff | Share Chg % | Q2 2021 value | Q3 2021 value | Value change | Value Chg % |
|---|