Proto Labs, Inc.
DE ˙ DB ˙ US7437131094
64,05 € ↓ -2,90 (-4,33%)
2026-06-03
DEL PRIS
SecurityDE:PRZ / Proto Labs, Inc.
InstitutionS Squared Technology, LLC
Latest Disclosed Ownership296,103 shares
Latest Disclosed Value $ 16,883,793
S Squared Technology, LLC reports 3.27% decrease in ownership of PRZ / Proto Labs, Inc.

On May 15, 2026 - S Squared Technology, LLC filed a 13F-HR/A form disclosing ownership of 296,103 shares of Proto Labs, Inc. (DE:PRZ) valued at $14,514,969 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 306,103 shares of Proto Labs, Inc.. This represents a change in shares of -3.27% during the quarter. The current value of the position is $18,965,397 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F/A-1 PROTO LABS COM 743713109 296,103 -10,000 -3.27 16,884 9.03 6.3904
2026-05-14 2026-03-31 13F PROTO LABS COM 743713109 296,103 -10,000 16,884 6.3904
2026-02-13 2025-12-31 13F PROTO LABS COM 743713109 306,103 -5,000 -1.61 15,486 -0.51 5.9966
2025-11-14 2025-09-30 13F PROTO LABS COM 743713109 311,103 0 0.00 15,564 24.95 5.9172
2025-08-07 2025-06-30 13F PROTO LABS COM 743713109 311,103 4,100 1.34 12,457 15.79 5.2487
2025-05-16 2025-03-31 13F PROTO LABS COM 743713109 307,003 0 0.00 10,757 -10.36 5.5040
2025-02-13 2024-12-31 13F PROTO LABS COM 743713109 307,003 15,000 5.14 12,001 39.93 4.9856
2024-11-14 2024-09-30 13F PROTO LABS COM 743713109 292,003 10,000 3.55 8,576 -1.55 3.6584
2024-08-14 2024-06-30 13F PROTO LABS COM 743713109 282,003 10,000 3.68 8,711 -10.42 3.8443
2024-05-15 2024-03-31 13F PROTO LABS COM 743713109 272,003 20,000 7.94 9,724 -0.96 4.4648
2024-02-13 2023-12-31 13F PROTO LABS COM 743713109 252,003 200 0.08 9,818 47.71 4.7658
2023-11-13 2023-09-30 13F PROTO LABS COM 743713109 251,803 161,008 177.33 6,648 109.42 3.5865
2023-08-11 2023-06-30 13F PROTO LABS COM 743713109 90,795 90,795 3,174 1.5707
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.