Byggmästare Anders J Ahlström Holding AB (publ)

Compiled from cited public records — every figure names the disclosure it came from, none copied from any wealth ranking. How we calculate this.

Market capitalisation
Not available
shares outstanding × closing price; no dated price on file yet
Insiders on file
14
individuals named in insider transaction reports filed to Finansinspektionen (FI) in Sweden
Value of insider-held stock
Not available
positions here are rebuilt from reported transactions, and we hold no closing price for these shares, so there is nothing to value
Insider-held share of market cap
Not available
insider-held value divided by market capitalisation

Insiders at Byggmästare Anders J Ahlström Holding AB (publ)

Shares is a position we rebuilt from reported transactions — not a disclosed balance.

Reconstructed by adding up every transaction this person reported to FI since 2016. FI publishes transactions, not balances, so this is a computed figure, not a disclosed one — and it omits anything held before the register began.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

People who file insider reports against Byggmästare Anders J Ahlström Holding AB (publ).
Insider Reported role Shares Value Last action
Stefan Dahlbo — 140,723 Not available SDIS Disposal Jul 9, 2025 position rebuilt to
Alesco S.A. — 31,788 Not available SEXD Exercise decrease Oct 8, 2021 position rebuilt to
Frida Åkerblom — 2,839 Not available SACQ Acquisition Feb 6, 2026 position rebuilt to
Tomas Bergström Tomas Bergström — 1,000 Not available SACQ Acquisition Jul 10, 2024 position rebuilt to
Karl Edward Jonas Ingemarsson — 673 Not available SACQ Acquisition Feb 23, 2024 position rebuilt to
Rikard Boive Andreas Lindenhierta — 466 Not available SDIS Disposal Apr 15, 2021 position rebuilt to
Gerda Elisabet Mazi Larsson — 117 Not available SACQ Acquisition Nov 23, 2023 position rebuilt to

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

Hidayet Tercan Sidea sold 51,540 Byggmästare Anders J Ahlström Holding AB (publ) shares for 2,808,930 SEK on Aug 3, 2026

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.

Hidayet Tercan Sidea sold 51,540 Byggmästare Anders J Ahlström Holding AB (publ) shares for 2,808,930 SEK on Aug 3, 2026
Date Insider Transaction Shares Price Value Filing
Aug 3, 2026 Hidayet Tercan Sidea SDIS Disposal 51,540 54.50 SEK 2,808,930 SEK FI filing ↗

Source: Finansinspektionen (Sweden); every row links to where it was published. Event computed Sep 14, 2026.

Tomas Bergström sold 207,276 Byggmästare Anders J Ahlström Holding AB (publ) shares for 13,203,481 SEK on Dec 18, 2025

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.

Tomas Bergström sold 207,276 Byggmästare Anders J Ahlström Holding AB (publ) shares for 13,203,481 SEK on Dec 18, 2025
Date Insider Transaction Shares Price Value Filing
Dec 18, 2025 Tomas Bergström SDIS Disposal 207,276 63.70 SEK 13,203,481 SEK FI filing ↗

Source: Finansinspektionen (Sweden); every row links to where it was published. Event computed Sep 14, 2026.

Tomas Bergström bought 42,654 Byggmästare Anders J Ahlström Holding AB (publ) shares for 11,041,841 SEK on Sep 2, 2024

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.

Tomas Bergström bought 42,654 Byggmästare Anders J Ahlström Holding AB (publ) shares for 11,041,841 SEK on Sep 2, 2024
Date Insider Transaction Shares Price Value Filing
Sep 2, 2024 Tomas Bergström SACQ Acquisition 42,654 258.87 SEK 11,041,841 SEK FI filing ↗

Source: Finansinspektionen (Sweden); every row links to where it was published. Event computed Sep 14, 2026.

4 insiders bought Byggmästare Anders J Ahlström Holding AB (publ) shares worth 803,734 SEK between Nov 17, 2023 and Nov 23, 2023

Cluster buying

4 different insiders made 6 open-market purchases of this company’s shares within a short window. Each row below is one reported trade.

4 insiders bought Byggmästare Anders J Ahlström Holding AB (publ) shares worth 803,734 SEK between Nov 17, 2023 and Nov 23, 2023
Date Insider Transaction Shares Price Value Filing
Nov 17, 2023 Hidayet Tercan Sidea SACQ Acquisition 155 169.00 SEK 26,195 SEK FI filing ↗
Nov 17, 2023 Stefan Dahlbo SACQ Acquisition 26 171.50 SEK 4,459 SEK FI filing ↗
Nov 20, 2023 Gerda Elisabet Mazi Larsson SACQ Acquisition 30 170.00 SEK 5,100 SEK FI filing ↗
Nov 20, 2023 Tomas Bergström SACQ Acquisition 2,999 172.25 SEK 516,569 SEK FI filing ↗
Nov 20, 2023 Stefan Dahlbo SACQ Acquisition 1,374 172.15 SEK 236,534 SEK FI filing ↗
Nov 23, 2023 Gerda Elisabet Mazi Larsson SACQ Acquisition 87 171.00 SEK 14,877 SEK FI filing ↗

Total of the rows above: 803,734 SEK, in the currency the filings report.

Source: Finansinspektionen (Sweden); every row links to where it was published. Event computed Sep 14, 2026.

Tomas Bergström bought 28,416 Byggmästare Anders J Ahlström Holding AB (publ) shares for 5,541,120 SEK on Mar 1, 2021

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.

Tomas Bergström bought 28,416 Byggmästare Anders J Ahlström Holding AB (publ) shares for 5,541,120 SEK on Mar 1, 2021
Date Insider Transaction Shares Price Value Filing
Mar 1, 2021 Tomas Bergström SACQ Acquisition 28,416 195.00 SEK 5,541,120 SEK FI filing ↗

Source: Finansinspektionen (Sweden); every row links to where it was published. Event computed Sep 14, 2026.

Recent insider transactions

Of the 131 rows we hold, 84 are open-market purchases (SACQ) and 30 open-market sales (SDIS) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on allotments, gifts and option exercises — not a gap in our data.

Insider transactions reported to Finansinspektionen (FI) in Sweden for Byggmästare Anders J Ahlström Holding AB (publ), newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Aug 3, 2026 Hidayet Tercan Sidea SDIS Disposal 51,540 54.50 SEK 2.81M SEK FI filing ↗
Jun 15, 2026 Hidayet Tercan Sidea SDIS Disposal 10,000 55.00 SEK 550.0K SEK FI filing ↗
Mar 16, 2026 Tomas Bergström SACQ Acquisition 1,500 53.12 SEK 79.7K SEK FI filing ↗
Mar 5, 2026 Tomas Bergström SACQ Acquisition 2,500 54.00 SEK 135.0K SEK FI filing ↗
Mar 4, 2026 Tomas Bergström SACQ Acquisition 814 53.00 SEK 43.1K SEK FI filing ↗
Mar 3, 2026 Tomas Bergström SACQ Acquisition 186 51.00 SEK 9.5K SEK FI filing ↗
Feb 10, 2026 Tomas Bergström SACQ Acquisition 8,000 56.82 SEK 454.6K SEK FI filing ↗
Feb 6, 2026 Frida Åkerblom SACQ Acquisition 1,047 55.55 SEK 58.2K SEK FI filing ↗
Feb 5, 2026 Frida Åkerblom SACQ Acquisition 753 55.50 SEK 41.8K SEK FI filing ↗
Feb 2, 2026 Tomas Bergström SACQ Acquisition 2,000 57.40 SEK 114.8K SEK FI filing ↗
Feb 2, 2026 Tomas Bergström SACQ Acquisition 2,000 56.50 SEK 113.0K SEK FI filing ↗
Dec 22, 2025 Tomas Bergström SACQ Acquisition 388 61.80 SEK 24.0K SEK FI filing ↗
Dec 19, 2025 Tomas Bergström SACQ Acquisition 4,000 60.86 SEK 243.4K SEK FI filing ↗
Dec 18, 2025 Tomas Bergström SDIS Disposal 15,894 66.70 SEK 1.06M SEK FI filing ↗
Dec 18, 2025 Tomas Bergström SDIS Disposal 56,834 66.40 SEK 3.77M SEK FI filing ↗
Dec 18, 2025 Tomas Bergström SDIS Disposal 207,276 63.70 SEK 13.20M SEK FI filing ↗
Dec 18, 2025 Mikael Ahlström SACQ Acquisition 56,834 66.40 SEK 3.77M SEK FI filing ↗
Oct 29, 2025 Georg Johan Casimir Ehrnrooth SACQ Acquisition 137,977 296.27 SEK 40.88M SEK FI filing ↗
Oct 29, 2025 Georg Johan Casimir Ehrnrooth SACQ Acquisition 16,139 296.27 SEK 4.78M SEK FI filing ↗
Jul 16, 2025 Tomas Bergström SACQ Acquisition 312 268.93 SEK 83.9K SEK FI filing ↗
Jul 15, 2025 Tomas Bergström SACQ Acquisition 688 267.22 SEK 183.8K SEK FI filing ↗
Jul 9, 2025 Stefan Dahlbo SDIS Disposal 225 276.00 SEK 62.1K SEK FI filing ↗
Jul 8, 2025 Stefan Dahlbo SDIS Disposal 1,149 275.40 SEK 316.4K SEK FI filing ↗
Jul 7, 2025 Stefan Dahlbo SDIS Disposal 223 276.35 SEK 61.6K SEK FI filing ↗
Jul 7, 2025 Tomas Bergström SDIS Disposal 140,000 0.35 SEK 49.0K SEK FI filing ↗

From insider transaction reports filed to Finansinspektionen (FI) in Sweden. Every row links back to the public register, filtered to the issuer and publication date it came from. How we calculate this.

What an insider report is

The report a person with insider status — an officer, a board member or someone close to them — must file after trading shares in the company they are close to.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from insider transaction reports filed to Finansinspektionen (FI) in Sweden. Nothing here is estimated, and nothing is taken from press coverage or company websites.

How the positions on this page were built. Reconstructed by adding up every transaction this person reported to FI since 2016. FI publishes transactions, not balances, so this is a computed figure, not a disclosed one — and it omits anything held before the register began.