Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 44,121
- Price
- $8.00
- Value
- $352,968
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•41 filings
VSTM
Verastem, Inc.
Net sales of $381.5K over the last 3 months
2 sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.
How to read this signal
Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.
3-month balance
−$381,484
0 buyers · 2 sellers
12-month purchases
$0.00
0 distinct insiders
12-month sales
$1,085,836
6 distinct insiders
Highlighted alerts
0
40 Rule 10b5-1 trades treated as informational
Buying cluster · 30 days
Fewer than three distinct buyers
CEO/CFO purchases · 12 months
No executive purchases found
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Form 4 raw → Raspberry
The value is in what we do not call a signal.
The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.
56
Raw transactions
Everything returned by the filing
40
Voluntary view
P/S trades after deterministic checks
16
Administrative noise
Stored, never alerted
45
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- A
- Shares
- 106,893
- Price
- $0.00
- Footnotes
- 2
The reported securities were subject to a performance restricted stock units ("RSU") award that was granted on January 21, 2026. 106,893 RSUs vested on September 30, 2026, upon the Issuer's Compensation Committee of the board of directors determining the performance criteria related to certain clinical development goals had been achieved. The sale reported on this Form 4 represents shares sold by the Reporting Person to satisfy statutory withholding requirements in connection with the vesting of RSUs.
Raspberry interpretation
Informational — no alert
Reason: administrative_code. The trade is reported under a Rule 10b5-1 plan.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
Calkins Daniel
Chief Financial Officer
Sale 10b5-1
- Shares
- 2,566
- Price
- $8.00
- Value
- $20,528
Calkins Daniel
Chief Financial Officer
Sale 10b5-1
- Shares
- 55
- Price
- $7.70
- Value
- $423.50
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 1,302
- Price
- $5.81
- Value
- $7,565
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 20,871
- Price
- $4.18
- Value
- $87,241
Calkins Daniel
Chief Financial Officer
Sale 10b5-1
- Shares
- 57
- Price
- $4.13
- Value
- $235.41
Calkins Daniel
Chief Financial Officer
Sale 10b5-1
- Shares
- 4,032
- Price
- $4.18
- Value
- $16,854
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 806
- Price
- $5.82
- Value
- $4,691
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 970
- Price
- $6.69
- Value
- $6,489
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 10,321
- Price
- $7.16
- Value
- $73,898
Calkins Daniel
Chief Financial Officer
Sale 10b5-1
- Shares
- 5,039
- Price
- $7.16
- Value
- $36,079
Calkins Daniel
Chief Financial Officer
Sale 10b5-1
- Shares
- 80
- Price
- $7.86
- Value
- $628.80
Stuglik Brian M
Director
Sale 10b5-1
- Shares
- 592
- Price
- $9.14
- Value
- $5,411
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 393
- Price
- $9.14
- Value
- $3,592
Gagnon Robert E.
Director
Sale 10b5-1
- Shares
- 283
- Price
- $9.14
- Value
- $2,587
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.00
- Value
- $20,000
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.07
- Value
- $20,140
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.25
- Value
- $20,500
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.50
- Value
- $21,000
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.61
- Value
- $21,220
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.00
- Value
- $20,000
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.00
- Value
- $20,000
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.32
- Value
- $20,640
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.39
- Value
- $20,780
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.79
- Value
- $21,580
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.32
- Value
- $20,640
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.00
- Value
- $20,000
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.00
- Value
- $20,000
Bunn Paul A.
Director
Sale 10b5-1
- Shares
- 6,250
- Price
- $10.00
- Value
- $62,500
Kauffman Michael
Director
Sale 10b5-1
- Shares
- 8,550
- Price
- $10.00
- Value
- $85,500
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.00
- Value
- $20,000
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 2,000
- Price
- $10.00
- Value
- $20,000
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 1,299
- Price
- $9.35
- Value
- $12,146
Bunn Paul A.
Director
Sale 10b5-1
- Shares
- 8,333
- Price
- $9.06
- Value
- $75,497
Calkins Daniel
Chief Financial Officer
Sale 10b5-1
- Shares
- 25
- Price
- $9.23
- Value
- $230.75
Calkins Daniel
Chief Financial Officer
Sale 10b5-1
- Shares
- 57
- Price
- $9.08
- Value
- $517.56
Stuglik Brian M
Director
Sale 10b5-1
- Shares
- 587
- Price
- $9.99
- Value
- $5,864
Gagnon Robert E.
Director
Sale 10b5-1
- Shares
- 281
- Price
- $9.99
- Value
- $2,807
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 390
- Price
- $9.99
- Value
- $3,896
Paterson Dan
President and CEO
Sale 10b5-1
- Shares
- 1,332
- Price
- $5.81
- Value
- $7,739
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Oct 01, 2026 | Paterson Dan President and CEO | Sale | 44,121 | $8.00 | $352,968 | |
| Oct 01, 2026 | Calkins Daniel Chief Financial Officer | Sale | 2,566 | $8.00 | $20,528 | |
| Sep 21, 2026 | Calkins Daniel Chief Financial Officer | Sale | 55 | $7.70 | $423.50 | |
| Aug 03, 2026 | Paterson Dan President and CEO | Sale | 1,302 | $5.81 | $7,565 | |
| Jun 22, 2026 | Paterson Dan President and CEO | Sale | 20,871 | $4.18 | $87,241 | |
| Jun 22, 2026 | Calkins Daniel Chief Financial Officer | Sale | 57 | $4.13 | $235.41 | |
| Jun 22, 2026 | Calkins Daniel Chief Financial Officer | Sale | 4,032 | $4.18 | $16,854 | |
| May 04, 2026 | Paterson Dan President and CEO | Sale | 806 | $5.82 | $4,691 | |
| Feb 04, 2026 | Paterson Dan President and CEO | Sale | 970 | $6.69 | $6,489 | |
| Jan 12, 2026 | Paterson Dan President and CEO | Sale | 10,321 | $7.16 | $73,898 | |
| Jan 12, 2026 | Calkins Daniel Chief Financial Officer | Sale | 5,039 | $7.16 | $36,079 | |
| Dec 24, 2025 | Calkins Daniel Chief Financial Officer | Sale | 80 | $7.86 | $628.80 | |
| Dec 16, 2025 | Stuglik Brian M Director | Sale | 592 | $9.14 | $5,411 | |
| Dec 16, 2025 | Paterson Dan President and CEO | Sale | 393 | $9.14 | $3,592 | |
| Dec 16, 2025 | Gagnon Robert E. Director | Sale | 283 | $9.14 | $2,587 | |
| Dec 11, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.00 | $20,000 | |
| Dec 10, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.07 | $20,140 | |
| Dec 09, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.25 | $20,500 | |
| Dec 08, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.50 | $21,000 | |
| Dec 05, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.61 | $21,220 | |
| Dec 04, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.00 | $20,000 | |
| Dec 03, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.00 | $20,000 | |
| Dec 02, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.32 | $20,640 | |
| Dec 01, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.39 | $20,780 | |
| Nov 28, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.79 | $21,580 | |
| Nov 26, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.32 | $20,640 | |
| Nov 25, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.00 | $20,000 | |
| Nov 24, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.00 | $20,000 | |
| Nov 21, 2025 | Bunn Paul A. Director | Sale | 6,250 | $10.00 | $62,500 | |
| Nov 21, 2025 | Kauffman Michael Director | Sale | 8,550 | $10.00 | $85,500 | |
| Nov 21, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.00 | $20,000 | |
| Nov 03, 2025 | Paterson Dan President and CEO | Sale | 2,000 | $10.00 | $20,000 | |
| Nov 03, 2025 | Paterson Dan President and CEO | Sale | 1,299 | $9.35 | $12,146 | |
| Oct 09, 2025 | Bunn Paul A. Director | Sale | 8,333 | $9.06 | $75,497 | |
| Sep 24, 2025 | Calkins Daniel Chief Financial Officer | Sale | 25 | $9.23 | $230.75 | |
| Sep 22, 2025 | Calkins Daniel Chief Financial Officer | Sale | 57 | $9.08 | $517.56 | |
| Sep 16, 2025 | Stuglik Brian M Director | Sale | 587 | $9.99 | $5,864 | |
| Sep 16, 2025 | Gagnon Robert E. Director | Sale | 281 | $9.99 | $2,807 | |
| Sep 16, 2025 | Paterson Dan President and CEO | Sale | 390 | $9.99 | $3,896 | |
| Aug 06, 2025 | Paterson Dan President and CEO | Sale | 1,332 | $5.81 | $7,739 |