JAMF (JAMF) Institutional Ownership Changes & 13F Activity
JAMF (JAMF) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q3 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Mairs & Power Growth Fund, Renaissance Technologies LLC, Tiger Global Management, and Viking Global Investors.
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q3 2021 | Mairs & Power Growth Fund | Buy | 161,186 | 1,528,526 | $58,879 |
| Q3 2021 | Renaissance Technologies LLC | Sell | -112,604 | 322,739 | $12,432 |
| Q2 2021 | Renaissance Technologies LLC | Buy | 435,343 | 435,343 | $14,614 |
| Q2 2021 | Mairs & Power Growth Fund | Buy | 160,790 | 1,367,340 | $45,902 |
| Q1 2021 | Mairs & Power Growth Fund | Buy | 77,495 | 1,206,550 | $42,615 |
| Q4 2020 | Mairs & Power Growth Fund | Buy | 154,723 | 1,129,055 | $33,781 |
| Q3 2020 | Tiger Global Management | Buy | 2,778,778 | 2,778,778 | $104,510 |
| Q3 2020 | Mairs & Power Growth Fund | Buy | 974,332 | 974,332 | $36,645 |
| Q3 2020 | Viking Global Investors | Buy | 605,828 | 605,828 | $22,785 |
Frequently asked questions about JAMF activity
Which institutional owners are buying JAMF?
Institutional owners buying JAMF include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in JAMF activity?
"Buy" means an investor increased their reported position in JAMF compared to the prior reporting period. This reflects growing exposure to JAMF rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in JAMF increasing?
Institutional interest in JAMF can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.