Michael Tiedemann
CIK 1958484 · Chief Executive Officer · last filed 2026-02-18
Michael Tiedemann is a Chief Executive Officer who has filed 13 SEC Form 4 insider transactions across 2 companies since 2023. The most recent filing, for ALTI, was dated Feb 18, 2026. Across all open-market trades the lifetime net is +$826.4K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $2.1M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$2.11M
2
13
$826.4K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ALTI | Chief Executive Officer | 687,925 | $3.06 | $2.11M | $826.4K | 11 | 2026-02-18 |
| AlTi Global, Inc. (ALTIW) Delisted | Chief Executive Officer | 189,217 | $1.52 | $287.6K | $0 | 2 | 2023-06-09 |
Recent Filings
13 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-02-18 | ALTI | Exer (M) | +169,207 | $0 | EDGAR |
| 2025-10-15 | ALTI | Grant (A) | — | $0 | EDGAR |
| 2025-06-05 | ALTI | Sell (S) | −42,198 | -$146.4K | EDGAR |
| 2025-03-20 | ALTI | Grant (A) | — | $0 | EDGAR |
| 2025-02-19 | ALTI | Exer (M) | +83,455 | $0 | EDGAR |
| 2024-09-04 | ALTI | Gift (G) | +13,975 | $0 | EDGAR |
| 2024-06-05 | ALTI | Mixed | +47,373 | $230.5K | EDGAR |
| 2024-05-23 | ALTI | Buy (P) | +63,368 | $281.2K | EDGAR |
| 2024-05-20 | ALTI | Buy (P) | +100,000 | $461.2K | EDGAR |
| 2024-04-04 | ALTI | Exer (M) | +150,000 | $0 | EDGAR |