Latest filingSep 04, 2026Most recent Form 4
KRYS
Krystal Biotech, Inc.
NasdaqHealthcareBiological Products, (No Diagnostic Substances)
Insider activity for last month from 08/05 to 09/05. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$1.79B26 sells
Net open-market-$1.79B2 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period26transactions
- S · Open-market sells · dominant26 · 100%
Activity by reported role
A joint filing can contribute to multiple roles52transactions
- PRES · dominant26 · 50%
- D13 · 25%
- R13 · 25%
Distinct insiders active
Reporting-owner CIKs by month · peak Sep 2026 (2)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeKrishnan Krish SCommon Stock · Direct
1,369,994Sep 04, 2026
Krishnan SumaCommon Stock · Direct
1,324,619Sep 04, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 05 → Sep 05
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Top insiders
By absolute net value across the selected period- KS-$9.0M
- KS-$9.0M
Recent filing activity
Most recent 12 transactions · color = transaction codeFiling detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
No filing-only signal badges matched this period.
KRYS transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 399 | -$14.6M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 826 | -$30.1M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 1.32k | -$48.4M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 565 | -$20.5M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 1.99k | -$72.2M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 1.24k | -$44.9M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 2.31k | -$83.6M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 3.39k | -$121M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 3.18k | -$113M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 3.96k | -$141M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 3.26k | -$116M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 2.00k | -$71.3M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Suma | PRESRD | sale10b5-1 | 520 | -$18.4M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 405 | -$14.8M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 847 | -$30.9M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 1.35k | -$49.4M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 573 | -$20.8M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 2.00k | -$72.8M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 1.21k | -$43.8M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 2.26k | -$81.6M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 3.35k | -$120M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 3.14k | -$112M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 3.98k | -$142M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 3.29k | -$117M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 2.02k | -$72.1M | S | — | 0.0% | 09/04 | 09/04 |
| KRYS | Krishnan Krish S | PRES | sale10b5-1 | 520 | -$18.4M | S | — | 0.0% | 09/04 | 09/04 |
Krystal Biotech, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Krystal Biotech, Inc.?
Krishnan Suma, Krishnan Krish S.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Krishnan Suma reported a sale on Sep 04, 2026 valued at $14.6M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $17,966,069.36. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.