Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 8,000
- Price
- $21.57
- Value
- $172,560
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•47 filings
CGEM
Cullinan Therapeutics, Inc.
Net sales of $780.4K over the last 3 months
1 seller 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
−$780,360
0 buyers · 1 sellers
12-month purchases
$0.00
0 distinct insiders
12-month sales
$1,453,140
1 distinct insiders
Highlighted alerts
8
13 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.
67
Raw transactions
Everything returned by the filing
21
Voluntary view
P/S trades after deterministic checks
46
Administrative noise
Stored, never alerted
28
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- S
- Shares
- 3,601
- Price
- $14.47
- Footnotes
- 3
Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on August 7, 2025. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $13.68 to $14.31. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Sale of shares to cover personal income tax obligations upon vesting of restricted stock units.
Raspberry interpretation
Informational — no alert
Reason: tax_withholding. The filing footnotes identify tax withholding. The trade is reported under a Rule 10b5-1 plan.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 30,000
- Price
- $20.26
- Value
- $607,800
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 8,000
- Price
- $17.82
- Value
- $142,560
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 200
- Price
- $15.58
- Value
- $3,116
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 7,800
- Price
- $14.60
- Value
- $113,880
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 8,000
- Price
- $15.68
- Value
- $125,440
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 1,780
- Price
- $14.14
- Value
- $25,169
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 1,752
- Price
- $13.99
- Value
- $24,510
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 8,000
- Price
- $14.30
- Value
- $114,400
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 4,000
- Price
- $12.30
- Value
- $49,200
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 1,345
- Price
- $10.01
- Value
- $13,463
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 995
- Price
- $11.90
- Value
- $11,841
Michaelson Jennifer
Chief Scientific Officer
Sale 10b5-1
- Shares
- 4,000
- Price
- $12.30
- Value
- $49,200
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 165,667
- Price
- $8.40
- Value
- $1,391,686
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 32,217
- Price
- $7.84
- Value
- $252,565
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 150,000
- Price
- $8.86
- Value
- $1,328,250
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 51,500
- Price
- $7.94
- Value
- $409,049
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 15,032
- Price
- $7.59
- Value
- $114,048
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 277,298
- Price
- $7.36
- Value
- $2,041,385
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 626,043
- Price
- $6.70
- Value
- $4,191,859
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 556,300
- Price
- $6.46
- Value
- $3,593,698
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Sep 08, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 8,000 | $21.57 | $172,560 | |
| Aug 13, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 30,000 | $20.26 | $607,800 | |
| Jul 06, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 8,000 | $17.82 | $142,560 | |
| May 05, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 200 | $15.58 | $3,116 | |
| May 05, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 7,800 | $14.60 | $113,880 | |
| Mar 05, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 8,000 | $15.68 | $125,440 | |
| Feb 25, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 1,780 | $14.14 | $25,169 | |
| Feb 23, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 1,752 | $13.99 | $24,510 | |
| Feb 20, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 8,000 | $14.30 | $114,400 | |
| Jan 22, 2026 | Michaelson Jennifer Chief Scientific Officer | Sale | 4,000 | $12.30 | $49,200 | |
| Dec 19, 2025 | Michaelson Jennifer Chief Scientific Officer | Sale | 1,345 | $10.01 | $13,463 | |
| Dec 15, 2025 | Michaelson Jennifer Chief Scientific Officer | Sale | 995 | $11.90 | $11,841 | |
| Nov 24, 2025 | Michaelson Jennifer Chief Scientific Officer | Sale | 4,000 | $12.30 | $49,200 | |
| Oct 28, 2025 | Lynx1 Capital Management LP 10% owner | Purchase | 165,667 | $8.40 | $1,391,686 | |
| Oct 17, 2025 | Lynx1 Capital Management LP 10% owner | Purchase | 32,217 | $7.84 | $252,565 | |
| Oct 16, 2025 | Lynx1 Capital Management LP 10% owner | Purchase | 150,000 | $8.86 | $1,328,250 | |
| Oct 15, 2025 | Lynx1 Capital Management LP 10% owner | Purchase | 51,500 | $7.94 | $409,049 | |
| Oct 14, 2025 | Lynx1 Capital Management LP 10% owner | Purchase | 15,032 | $7.59 | $114,048 | |
| Oct 10, 2025 | Lynx1 Capital Management LP 10% owner | Purchase | 277,298 | $7.36 | $2,041,385 | |
| Oct 09, 2025 | Lynx1 Capital Management LP 10% owner | Purchase | 626,043 | $6.70 | $4,191,859 | |
| Oct 08, 2025 | Lynx1 Capital Management LP 10% owner | Purchase | 556,300 | $6.46 | $3,593,698 |
“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.