Entity type
Company
Filer Snapshot
MAIRS & POWER INC
CIK 0001070134. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.
Total filings
54
Latest filing
14 May 2026
Industry
n/a
Filing-backed research brief
Start with the SEC data that changes for this CIK
Latest signal: 13F-HR for Q1 2026. Each card links back to the PortfolioSavvy page where the filing evidence is closest.
Latest 13F portfolio
$9.79B
245 holdings for Q1 2026
Open portfolioLargest parsed holding
NVDA
$830.38M reported value
Open holding13D/G large stake
TNC
31 Mar 2026 · 4.4% ownership
Open 13D/GInsider / owner context
—
No parsed Forms 3/4/5 owner position for this CIK.
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Source: SEC Form 13F
View source filing
13F-HR filed on 14 May 2026 for CIK 0001070134.
- Parsed SEC ownership signals
-
Parsed SEC ownership coverage
These bars compare filing-backed value available in each disclosure family. Read them as separate lenses, not as one combined ownership total.
13F portfolio$9.79BQuarterly institutional holdings reported on Form 13F.
Latest reported 13F value
13F$9.79BReported market value from the latest parsed Form 13F information table; this is not total assets under management.
Largest 13F holdings
13FNVDA MSFT AMZN GOOG GGG+15 more
JPM AAPL LLY V TTC LFUS NVT MSI WEC LNT ECL UNH META FAST VZLargest symbols in the latest parsed Form 13F information table.
Largest 13F holdings
Largest symbols in the latest parsed Form 13F information table.
NVDA MSFT AMZN GOOG GGG JPM AAPL LLY+12 more
V TTC LFUS NVT MSI WEC LNT ECL UNH META FAST VZLargest active 13G stakes
Passive or institutional large-stake positions disclosed in parsed Schedule 13G filings.
TNC CLFDHow to read these SEC ownership signals
- Read each filing family separately: 13F portfolios, 13D/G large stakes, and Forms 3/4/5 owner positions answer different SEC disclosure questions.
- Open the linked research path when you need the filing, CIK, issuer, or CUSIP trail behind a value.
- Business address
- 30 E. 7 Th Street, Suite 2500, St Paul, MN, 55101
- Incorporated in
- MN
- Fiscal year end
- 31 December
Ownership signals
CIK-linked ownership evidence from parsed SEC filings.
1 signal
At a glance
Names, identifiers, and filing context for this profile.
1 identity field
EDGAR profile Static EDGAR fields kept behind disclosure so the main profile stays readable. 2 profile fields available
Filer intelligence
What SEC filings say about MAIRS & POWER INC
A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.
Quick read
- Latest parsed 13F shows $9.79B across 245 reported holdings for Q1 2026.
- Largest parsed 13F holding: NVDA at $830.38M.
- 2 recent 13D/G stake rows found; top row is TNC at 4.4% ownership.
SEC source mix
Counts show available parsed rows, not one combined ownership total.
Top parsed 13F holdings
Visual share of the latest parsed 13F portfolio. Values are reported market value, not a recommendation.
Top 5 concentration
29%
Share of latest parsed 13F value represented by the visible holdings below.
Top 5 reported value
$2.88B
Compared with $9.79B total 13F value.
Top 5 net change
-$52.19M
Position-value change inside the visible top holdings only.
13F concentration map
A simple visual split of the latest parsed 13F portfolio.
Largest add: WM · Largest trim: TTC
NVDA
MSFT
AMZN
GOOG
GGG
Other holdings
13D/G large-stake context
TNC
31 Mar 2026 · Common Stock, par value $0.375 per share
CLFD
31 Mar 2025 · Common Stock, $0.01 par value
Latest update
What changed recently for MAIRS & POWER INC
Latest 13F period: Q1 2026. Open the source-backed page to inspect the fresh filing or facts context.
Update date
14 May 2026
Page type
Filer profile
Latest period
Q1 2026
Institutional portfolio context was refreshed from a 13F filing filed on 14 May 2026.
Benchmark Context
Benchmark context for this company
MAIRS & POWER INC has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.
Compared with
Start on the facts page for period-to-period context, then open a metric ranking when you want to compare the same reported fact across other SEC-reporting companies.
Why this is notable
Latest 13F period: Q1 2026. That gives you a fresh baseline before you compare this company with peers.
- Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
- Open the facts page first if you want the cleanest path to verification.
Benchmark context is only shown where the app has enough comparable SEC-backed data to keep the interpretation honest.
SEC filing record
CIK 0001070134 filing coverage
Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.
SEC filings
54
First seen
14 Feb 2014
Latest filing
14 May 2026
Entity
Company
Observed form types
13F-HR
SCHEDULE 13G
SCHEDULE 13G/A
CIK-linked evidence first
Latest Filings
Showing the latest 12 of 54 SEC filings for MAIRS & POWER INC.
13F-HR
13F-HR filing
- Filing date
- 14 May 2026
- Reporting date
- 31 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SCHEDULE 13G/A
SCHEDULE 13G/A filing
- Filing date
- 13 May 2026
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
13F-HR
13F-HR filing
- Filing date
- 17 Feb 2026
- Reporting date
- 31 Dec 2025
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SCHEDULE 13G/A
SCHEDULE 13G/A filing
- Filing date
- 17 Feb 2026
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
13F-HR
13F-HR filing
- Filing date
- 14 Nov 2025
- Reporting date
- 30 Sep 2025
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
13F-HR
13F-HR filing
- Filing date
- 14 Aug 2025
- Reporting date
- 30 Jun 2025
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SCHEDULE 13G/A
SCHEDULE 13G/A filing
- Filing date
- 15 May 2025
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
SCHEDULE 13G
SCHEDULE 13G filing
- Filing date
- 15 May 2025
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
13F-HR
13F-HR filing
- Filing date
- 15 May 2025
- Reporting date
- 31 Mar 2025
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
13F-HR
13F-HR filing
- Filing date
- 14 Feb 2025
- Reporting date
- 31 Dec 2024
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
13F-HR
13F-HR filing
- Filing date
- 14 Nov 2024
- Reporting date
- 30 Sep 2024
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
13F-HR
13F-HR filing
- Filing date
- 14 Aug 2024
- Reporting date
- 30 Jun 2024
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing