Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 25,124
- Price
- $11.75
- Value
- $295,091
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•49 filings
KRRO
Korro Bio, Inc.
Net sales of $254.7K 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
−$254,708
2 buyers · 2 sellers
12-month purchases
$45,966,886
13 distinct insiders
12-month sales
$5,259,719
2 distinct insiders
Highlighted alerts
25
27 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.
81
Raw transactions
Everything returned by the filing
52
Voluntary view
P/S trades after deterministic checks
29
Administrative noise
Stored, never alerted
27
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- S
- Shares
- 5,802
- Price
- $10.84
- Footnotes
- 4
Represents the mandatory sale of shares of common stock solely to satisfy tax withholding obligations incurred upon vesting and settlement of a restricted stock unit (RSU) granted under the Issuer's 2023 Stock Option and Incentive Plan (the 2023 Plan). The price reported in Column 4 is a weighted-average price. The shares were sold in multiple transactions at prices ranging from $10.57 to $11.055, inclusive. Full information regarding the number of shares sold at each separate price can be provided to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission upon request. Includes 20,000 shares of common stock issuable upon settlement of a RSU granted under the 2023 Plan that will vest on February 1, 2027 subject to the reporting person maintaining a continuous Service Relationship (as defined in the 2023 Plan) through such date. Shares held by The Ram Aiyar Irrevocable Trust, for which the Reporting Person serves as trustee. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.
Raspberry interpretation
Informational — no alert
Reason: tax_withholding. The filing footnotes identify tax withholding.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 2,510
- Price
- $12.11
- Value
- $30,386
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 40,000
- Price
- $11.04
- Value
- $441,464
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 12,175
- Price
- $9.68
- Value
- $117,810
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 6,602
- Price
- $14.12
- Value
- $93,220
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 31,888
- Price
- $14.12
- Value
- $450,259
Dolan Oliver
Senior Vice President, Finance
Sale 10b5-1
- Shares
- 5
- Price
- $13.72
- Value
- $68.58
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 1,750
- Price
- $13.99
- Value
- $24,483
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 8,450
- Price
- $13.99
- Value
- $118,216
Dolan Oliver
Senior Vice President, Finance
Sale 10b5-1
- Shares
- 6
- Price
- $13.60
- Value
- $81.62
Dolan Oliver
Senior Vice President, Finance
Sale 10b5-1
- Shares
- 7,347
- Price
- $13.51
- Value
- $99,286
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 51
- Price
- $13.96
- Value
- $711.96
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 249
- Price
- $13.96
- Value
- $3,476
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 4,884
- Price
- $14.00
- Value
- $68,376
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 23,584
- Price
- $14.00
- Value
- $330,176
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 368
- Price
- $13.96
- Value
- $5,137
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 1,775
- Price
- $13.96
- Value
- $24,779
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 1,462
- Price
- $13.19
- Value
- $19,279
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 5,222
- Price
- $11.40
- Value
- $59,530
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 8,506
- Price
- $13.96
- Value
- $118,744
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 817
- Price
- $13.96
- Value
- $11,405
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 14,745
- Price
- $14.03
- Value
- $206,872
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 85,955
- Price
- $14.03
- Value
- $1,205,949
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 114
- Price
- $14.98
- Value
- $1,708
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 6,979
- Price
- $14.60
- Value
- $101,893
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 666
- Price
- $14.98
- Value
- $9,977
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 40,679
- Price
- $14.60
- Value
- $593,913
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 17,426
- Price
- $14.25
- Value
- $248,321
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 101,579
- Price
- $14.25
- Value
- $1,447,501
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 580
- Price
- $13.95
- Value
- $8,091
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 3,382
- Price
- $13.95
- Value
- $47,179
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 419
- Price
- $13.95
- Value
- $5,845
FORMELA JEAN FRANCOIS
Director
Sale 10b5-1
- Shares
- 2,441
- Price
- $13.95
- Value
- $34,052
Lynx1 Capital Management LP
10% owner
PurchaseAlert
- Shares
- 520
- Price
- $10.60
- Value
- $5,512
Yang Rick
10% owner
PurchaseAlert
- Shares
- 207,100
- Price
- $11.11
- Value
- $2,300,881
Yang Rick
10% owner
PurchaseAlert
- Shares
- 242,945
- Price
- $11.11
- Value
- $2,698,876
SANDELL SCOTT D
10% owner
PurchaseAlert
- Shares
- 207,100
- Price
- $11.11
- Value
- $2,300,881
SANDELL SCOTT D
10% owner
PurchaseAlert
- Shares
- 242,945
- Price
- $11.11
- Value
- $2,698,876
New Enterprise Associates 17, L.P.
10% owner
PurchaseAlert
- Shares
- 207,100
- Price
- $11.11
- Value
- $2,300,881
New Enterprise Associates 17, L.P.
10% owner
PurchaseAlert
- Shares
- 242,945
- Price
- $11.11
- Value
- $2,698,876
Chang Carmen
10% owner
PurchaseAlert
- Shares
- 207,100
- Price
- $11.11
- Value
- $2,300,881
Chang Carmen
10% owner
PurchaseAlert
- Shares
- 242,945
- Price
- $11.11
- Value
- $2,698,876
BASKETT FOREST
10% owner
PurchaseAlert
- Shares
- 207,100
- Price
- $11.11
- Value
- $2,300,881
BASKETT FOREST
10% owner
PurchaseAlert
- Shares
- 242,945
- Price
- $11.11
- Value
- $2,698,876
Mathers Edward T
10% owner
PurchaseAlert
- Shares
- 207,100
- Price
- $11.11
- Value
- $2,300,881
Mathers Edward T
10% owner
PurchaseAlert
- Shares
- 242,945
- Price
- $11.11
- Value
- $2,698,876
Walker Paul Edward
10% owner
PurchaseAlert
- Shares
- 207,100
- Price
- $11.11
- Value
- $2,300,881
Walker Paul Edward
10% owner
PurchaseAlert
- Shares
- 242,945
- Price
- $11.11
- Value
- $2,698,876
Makhzoumi Mohamad
10% owner
PurchaseAlert
- Shares
- 207,100
- Price
- $11.11
- Value
- $2,300,881
Makhzoumi Mohamad
10% owner
PurchaseAlert
- Shares
- 242,945
- Price
- $11.11
- Value
- $2,698,876
Florence Anthony A. Jr.
10% owner
PurchaseAlert
- Shares
- 207,100
- Price
- $11.11
- Value
- $2,300,881
Florence Anthony A. Jr.
10% owner
PurchaseAlert
- Shares
- 242,945
- Price
- $11.11
- Value
- $2,698,876
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Oct 26, 2026 | Lynx1 Capital Management LP 10% owner | Purchase | 25,124 | $11.75 | $295,091 | |
| Oct 23, 2026 | Lynx1 Capital Management LP 10% owner | Purchase | 2,510 | $12.11 | $30,386 | |
| Oct 22, 2026 | Lynx1 Capital Management LP 10% owner | Purchase | 40,000 | $11.04 | $441,464 | |
| Oct 22, 2026 | Lynx1 Capital Management LP 10% owner | Purchase | 12,175 | $9.68 | $117,810 | |
| Sep 14, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 6,602 | $14.12 | $93,220 | |
| Sep 14, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 31,888 | $14.12 | $450,259 | |
| Sep 11, 2026 | Dolan Oliver Senior Vice President, Finance | Sale | 5 | $13.72 | $68.58 | |
| Sep 11, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 1,750 | $13.99 | $24,483 | |
| Sep 11, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 8,450 | $13.99 | $118,216 | |
| Sep 09, 2026 | Dolan Oliver Senior Vice President, Finance | Sale | 6 | $13.60 | $81.62 | |
| Sep 08, 2026 | Dolan Oliver Senior Vice President, Finance | Sale | 7,347 | $13.51 | $99,286 | |
| Aug 26, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 51 | $13.96 | $711.96 | |
| Aug 26, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 249 | $13.96 | $3,476 | |
| Aug 19, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 4,884 | $14.00 | $68,376 | |
| Aug 19, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 23,584 | $14.00 | $330,176 | |
| Aug 11, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 368 | $13.96 | $5,137 | |
| Aug 11, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 1,775 | $13.96 | $24,779 | |
| Aug 10, 2026 | Lynx1 Capital Management LP 10% owner | Purchase | 1,462 | $13.19 | $19,279 | |
| Aug 06, 2026 | Lynx1 Capital Management LP 10% owner | Purchase | 5,222 | $11.40 | $59,530 | |
| Jul 06, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 8,506 | $13.96 | $118,744 | |
| Jul 06, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 817 | $13.96 | $11,405 | |
| Jul 02, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 14,745 | $14.03 | $206,872 | |
| Jul 02, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 85,955 | $14.03 | $1,205,949 | |
| Jun 24, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 114 | $14.98 | $1,708 | |
| Jun 24, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 6,979 | $14.60 | $101,893 | |
| Jun 24, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 666 | $14.98 | $9,977 | |
| Jun 24, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 40,679 | $14.60 | $593,913 | |
| Jun 23, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 17,426 | $14.25 | $248,321 | |
| Jun 23, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 101,579 | $14.25 | $1,447,501 | |
| Jun 22, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 580 | $13.95 | $8,091 | |
| Jun 22, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 3,382 | $13.95 | $47,179 | |
| May 28, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 419 | $13.95 | $5,845 | |
| May 28, 2026 | FORMELA JEAN FRANCOIS Director | Sale | 2,441 | $13.95 | $34,052 | |
| Mar 31, 2026 | Lynx1 Capital Management LP 10% owner | Purchase | 520 | $10.60 | $5,512 | |
| Mar 10, 2026 | Yang Rick 10% owner | Purchase | 207,100 | $11.11 | $2,300,881 | |
| Mar 10, 2026 | Yang Rick 10% owner | Purchase | 242,945 | $11.11 | $2,698,876 | |
| Mar 10, 2026 | SANDELL SCOTT D 10% owner | Purchase | 207,100 | $11.11 | $2,300,881 | |
| Mar 10, 2026 | SANDELL SCOTT D 10% owner | Purchase | 242,945 | $11.11 | $2,698,876 | |
| Mar 10, 2026 | New Enterprise Associates 17, L.P. 10% owner | Purchase | 207,100 | $11.11 | $2,300,881 | |
| Mar 10, 2026 | New Enterprise Associates 17, L.P. 10% owner | Purchase | 242,945 | $11.11 | $2,698,876 | |
| Mar 10, 2026 | Chang Carmen 10% owner | Purchase | 207,100 | $11.11 | $2,300,881 | |
| Mar 10, 2026 | Chang Carmen 10% owner | Purchase | 242,945 | $11.11 | $2,698,876 | |
| Mar 10, 2026 | BASKETT FOREST 10% owner | Purchase | 207,100 | $11.11 | $2,300,881 | |
| Mar 10, 2026 | BASKETT FOREST 10% owner | Purchase | 242,945 | $11.11 | $2,698,876 | |
| Mar 10, 2026 | Mathers Edward T 10% owner | Purchase | 207,100 | $11.11 | $2,300,881 | |
| Mar 10, 2026 | Mathers Edward T 10% owner | Purchase | 242,945 | $11.11 | $2,698,876 | |
| Mar 10, 2026 | Walker Paul Edward 10% owner | Purchase | 207,100 | $11.11 | $2,300,881 | |
| Mar 10, 2026 | Walker Paul Edward 10% owner | Purchase | 242,945 | $11.11 | $2,698,876 | |
| Mar 10, 2026 | Makhzoumi Mohamad 10% owner | Purchase | 207,100 | $11.11 | $2,300,881 | |
| Mar 10, 2026 | Makhzoumi Mohamad 10% owner | Purchase | 242,945 | $11.11 | $2,698,876 | |
| Mar 10, 2026 | Florence Anthony A. Jr. 10% owner | Purchase | 207,100 | $11.11 | $2,300,881 | |
| Mar 10, 2026 | Florence Anthony A. Jr. 10% owner | Purchase | 242,945 | $11.11 | $2,698,876 |
“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.