← United States · Coverage record
US · SEC FORM 4
Syndax Pharmaceuticals Inc
SNDX · Nasdaq · CIK 0001395937 · Healthcare · Biotechnology
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
8 Form 4 transaction lines observed in the same window
5 sales · 3 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
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SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-05-19 · Goldan Keith A..
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 18,234,880
- Previous report
- 20,660,449
- Avg daily volume
- 2,152,633
- Days to cover
- 8.5
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2025-05-19 | Katkin Keith | Purchase (P) | Common Stock | 10,000 | USD 9.11 | USD 91,100 | SEC filing ↗ |
| 2025-05-19 | Huber Martin H. Jr. | Purchase (P) | Common Stock | 5,000 | USD 8.99 | USD 44,950 | SEC filing ↗ |
| 2025-05-19 | Goldan Keith A. | Purchase (P) | Common Stock | 3,000 | USD — | USD — | SEC filing ↗ |
| 2025-05-16 | Botwood Nicholas A.J. | Purchase (P) | Common Stock | 11,765 | USD 9.00 | USD 105,885 | SEC filing ↗ |
| 2024-06-14 | Goldan Keith A. | Purchase (P) | Common Stock | 1,250 | USD 20.03 | USD 25,038 | SEC filing ↗ |
| 2021-04-26 | Meyers Michael L. | Purchase (P) | Common Stock | 500 | USD 15.46 | USD 7,730 | SEC filing ↗ |
| 2021-04-22 | Podlesak Dennis | Purchase (P) | Common Stock | 13,967 | USD 14.11 | USD 197,074 | SEC filing ↗ |
| 2020-02-04 | Morrison Briggs | Purchase (P) | Common Stock | 12,500 | USD 8.00 | USD 100,000 | SEC filing ↗ |
Form 4 evidence
26 transaction lines in the latest 365-day window; 293 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-07-08 | Metzger Michael A | Sale (S) | Common Stock | 32,375 | USD 24.24 | USD 784,770 | SEC filing ↗ |
| 2026-07-08 | Metzger Michael A | Option exercise / conversion (M) | Common Stock | 32,375 | USD 6.38 | USD 206,552 | SEC filing ↗ |
| 2026-06-12 | Botwood Nicholas A.J. | Sale (S) | Common Stock | 31,235 | USD 18.14 | USD 566,603 | SEC filing ↗ |
Show recent Form 4 evidence (23 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-07-08 | Metzger Michael A | Sale (S) | Common Stock | 32,375 | USD 24.24 | USD 784,770 | SEC filing ↗ |
| 2026-07-08 | Metzger Michael A | Option exercise / conversion (M) | Common Stock | 32,375 | USD 6.38 | USD 206,552 | SEC filing ↗ |
| 2026-06-12 | Botwood Nicholas A.J. | Sale (S) | Common Stock | 31,235 | USD 18.14 | USD 566,603 | SEC filing ↗ |
| 2026-06-12 | Botwood Nicholas A.J. | Option exercise / conversion (M) | Common Stock | 31,235 | USD 13.82 | USD 431,668 | SEC filing ↗ |
| 2026-06-11 | Botwood Nicholas A.J. | Sale (S) | Common Stock | 34,280 | USD 18.00 | USD 617,040 | SEC filing ↗ |
| 2026-06-11 | Botwood Nicholas A.J. | Option exercise / conversion (M) | Common Stock | 22,515 | USD 13.82 | USD 311,157 | SEC filing ↗ |
| 2026-06-01 | Metzger Michael A | Sale (S) | Common Stock | 6,847 | USD 18.99 | USD 130,025 | SEC filing ↗ |
| 2026-06-01 | Goldan Keith A. | Sale (S) | Common Stock | 1,177 | USD 18.99 | USD 22,351 | SEC filing ↗ |
| 2026-02-09 | Metzger Michael A | Sale (S) | Common Stock | 17,159 | USD 21.03 | USD 360,854 | SEC filing ↗ |
| 2026-02-09 | Goldan Keith A. | Sale (S) | Common Stock | 3,410 | USD 21.03 | USD 71,712 | SEC filing ↗ |
| 2026-02-06 | Metzger Michael A | Sale (S) | Common Stock | 7,412 | USD 20.62 | USD 152,835 | SEC filing ↗ |
| 2026-02-06 | Goldan Keith A. | Sale (S) | Common Stock | 2,082 | USD 20.62 | USD 42,931 | SEC filing ↗ |
| 2026-02-04 | Rizo Aleksandra | Award / grant (A) | Common Stock | 24,000 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-04 | Podlesak Dennis | Award / grant (A) | Common Stock | 48,000 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-04 | Metzger Michael A | Award / grant (A) | Common Stock | 217,600 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-04 | Legault Pierre | Award / grant (A) | Common Stock | 24,000 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-04 | Katkin Keith | Award / grant (A) | Common Stock | 24,000 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-04 | Jarrett Jennifer | Award / grant (A) | Common Stock | 24,000 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-04 | Huber Martin H. Jr. | Award / grant (A) | Common Stock | 24,000 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-04 | Goldan Keith A. | Award / grant (A) | Common Stock | 52,250 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-04 | Botwood Nicholas A.J. | Award / grant (A) | Common Stock | 60,000 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-01-30 | Goldan Keith A. | J (J) | Common Stock | 1,219 | USD 8.48 | USD 10,337 | SEC filing ↗ |
| 2025-12-01 | Goldan Keith A. | Gift (G) | Common Stock | 1,224 | USD 0.00 | USD 0 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-19 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | SNDX |
| CIK | 0001395937 |
| Sector | Healthcare |
| Industry | Biotechnology Yahoo Finance |
| SEC SIC | 2834 Pharmaceutical Preparations |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 293 transaction lines from 2020-01-31 to 2026-07-08 8 P purchase lines · 112 S sale lines · 173 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.