T Stamp Inc (Nasdaq: IDAI), an SEC filer in Services-Prepackaged Software, closed at $3.20, -4.5%, on 2026-08-28, with a market cap of $19M as of 2026-08-27, a return on equity of -141.7%, a net margin of -265.2% and 3-year sales growth of -16.5%. Institutional ownership, earnings history and filed financials are on the tabs below.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | Potomac Capital Management, Inc. | 160,900160,900 | $384,551 | 3.04% | TRIM -17% |
| 2 | UBS Group AG | 103,850103,850 | $248,202 | 1.96% | ADD 398% |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | 103,663103,663 | $247,757 | 1.96% | ADD 219% |
| 4 | Kestra Advisory Services, LLC | 56,05056,050 | $133,960 | 1.06% | ADD 8% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 34,86334,863 | $83,323 | 0.66% | NEW |
| 6 | VANGUARD FIDUCIARY TRUST CO | 22,35922,359 | $53,438 | 0.42% | NEW |
| 7 | DIMENSIONAL FUND ADVISORS LP | 18,30018,300 | $43,737 | 0.35% | NEW |
| 8 | CITADEL ADVISORS LLC | 16,20016,200 | $38,718 | 0.31% | NEW |
| 9 | HRT FINANCIAL LP | 12,89712,897 | $30,000 | 0.24% | NEW |
| 10 | MidFirst Bank | 7,6007,600 | $18,164 | 0.14% | — |
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| UBS Group AG | +82,980 | $198,322 | ADD |
| GEODE CAPITAL MANAGEMENT, LLC | +71,146 | $170,039 | ADD |
| VANGUARD CAPITAL MANAGEMENT LLC | +34,863 | $83,323 | OPEN |
| VANGUARD FIDUCIARY TRUST CO | +22,359 | $53,438 | OPEN |
| DIMENSIONAL FUND ADVISORS LP | +18,300 | $43,737 | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| Argentarii, LLC | −115,363 | $275,718 | CLOSE |
| JANE STREET GROUP, LLC | −56,167 | $134,239 | CLOSE |
| Potomac Capital Management, Inc. | −31,860 | $76,145 | TRIM |
| VANGUARD GROUP INC | −31,664 | $75,677 | CLOSE |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | −14,497 | $34,648 | CLOSE |
Prior quarter split-rebased · 13Fs are long, US-listed only.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| Potomac Capital Management, Inc. | — | — | — | — | 193K | 161K | $384,551 |
| UBS Group AG | — | 4K | 58 | 3K | 21K | 104K | $248,202 |
| GEODE CAPITAL MANAGEMENT, LLC | 150K | 34K | 34K | 19K | 33K | 104K | $247,757 |
| Kestra Advisory Services, LLC | — | — | — | — | 52K | 56K | $133,960 |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 35K | $83,323 |
| VANGUARD FIDUCIARY TRUST CO | — | — | — | — | — | 22K | $53,438 |
| DIMENSIONAL FUND ADVISORS LP | — | — | — | — | — | 18K | $43,737 |
| CITADEL ADVISORS LLC | — | — | — | — | — | 16K | $38,718 |
| HRT FINANCIAL LP | 39K | — | — | — | — | 13K | $30,000 |
| MidFirst Bank | — | — | — | — | 8K | 8K | $18,164 |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Breaks = no 13F that quarter.
Short interest has its own tab now — open SI →
SEC Form 13F · ~10,250 filers, 10y · long-only, US-listed, filed ≤45d after quarter-end.
