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Yarrow Bioscience, Inc.

YARW Net buying
CIK 0001566044 #4323 in the set updated 22 Sep 2026
Bought (120 mo)
$31.79M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$9.15M
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$9.15M
6 of 6 sales
Net
+$22.65M
+$22.65M against sales at will

By person

23 insiders · 27 transactions
1.5×

David Domzalski holds only 1.5 times base salary in stock. $1.01M of shares against $637.56K in salary for 2024.

Salary from the company's own proxy. The shares are what David Domzalski last reported holding, valued at $2.92, the price Common Stock was last bought or sold at on the open market here, on 15 Jan 2025.

Insider
Role
Bought
Sold
Net
Holding
Worth
Change
PERCEPTIVE ADVISORS LLC entity
10% owner
$15.00M (2)
$5.32M (4)
+$9.68M
4,935,057
$14.41M
Cha Albert
Director
$5.00M (2)
+$5.00M
4,011,236
$11.71M
Vivo Capital VIII, LLC entity
10% owner
$5.00M (2)
+$5.00M
4,011,236
$11.71M
venBio Global Strategic Fund II L.P. entity
10% owner
$4.51M (1)
+$4.51M
1,461,552
$4.27M
Presidio Partners 2007 GP, L.P. entity
10% owner
$3.83M (2)
−$3.83M
2,108,540
$6.16M
+45.2%
Remeditex Ventures LLC entity
10% owner
$1.70M (1)
+$1.70M
2,761,663
$8.06M
+86.2%
LEPORE PATRICK G
Director
$399.90K (8)
+$399.90K
51,472
$150.30K
Domzalski David
PRESIDENT AND CEO
$103.57K (1)
+$103.57K
347,174
$1.01M
Saik Andrew
Chief Financial Officer
$58.48K (1)
+$58.48K
116,468
$340.09K
Harsch Mutya
CHIEF LEGAL OFFICER AND GC
$25.00K (1)
+$25.00K
95,918
$280.08K
FMR LLC entity
See Remark 1
1,118,054
$3.26M
Basta Steven L
Director
536,537
$1.57M
+54.5%
Hirsch Stanley
Director
530,019
$1.55M
RTW Fund Group GP, LLC entity
10% owner
266,307
$777.62K
−33.4%
Bruno Anthony D
Director
135,056
$394.36K
Wiley Matthew T.
Chief Commercial Officer
109,246
$319.00K
Stuart Iain
CHIEF SCIENTIFIC OFFICER
95,944
$280.16K
Hadar Ilan
CFO and Country Manager
77,351
$225.86K
BARBARI SHARON
Director
75,000
$219.00K
Zeronda Tyler
Director
74,918
$218.76K
BALL KRISTINE M
See Remarks
52,534
$153.40K
Kwon Paul
Chief Scientific Officer
52,534
$153.40K
Krasnow Ronald A.
See Remarks
15,819
$46.19K

No percentages here. This company's share count has moved by a factor of 12.5 over the window, from 2,669,746 to 33,352,858 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
LEPORE PATRICK G
15 Jan 2025
Director
Buy
15,000
$2.92
$43.80K
LEPORE PATRICK G
15 Nov 2023
Director
Buy
13,000
$3.91
$50.78K
Harsch Mutya
20 Mar 2023
Chief Legal Officer and GC
Buy
10,000
$2.50
$25.00K
LEPORE PATRICK G
20 Mar 2023
Director
Buy
20,000
$2.48
$49.68K
LEPORE PATRICK G
30 Nov 2021
Director
Buy
12,500
$1.02
$12.70K
LEPORE PATRICK G
25 Aug 2021
Director
Buy
12,500
$1.60
$20.00K
LEPORE PATRICK G
26 May 2021
Director
Buy
12,500
$3.60
$44.96K
LEPORE PATRICK G
15 Mar 2021
Director
Buy
12,500
$7.41
$92.56K
PERCEPTIVE ADVISORS LLC
28 Jan 2021
10% owner
Buy indirect
4,219,409
$2.37
$10.00M
LEPORE PATRICK G
3 Dec 2020
Director
Buy
50,000
$1.71
$85.43K
Domzalski David
8 Sep 2020
President and CEO
Buy
75,000
$1.38
$103.57K
Saik Andrew
8 Sep 2020
Chief Financial Officer
Buy
40,000
$1.46
$58.48K
PERCEPTIVE ADVISORS LLC
9 Jun 2020
10% owner
Buy indirect
2,702,702
$1.85
$5.00M
Cha Albert
25 Jan 2018
Director
Buy indirect
35,686
$17.00
$606.66K
Cha Albert
25 Jan 2018
Director
Buy indirect
258,432
$17.00
$4.39M
Vivo Capital VIII, LLC
25 Jan 2018
10% owner
Buy indirect
35,686
$17.00
$606.66K
Vivo Capital VIII, LLC
25 Jan 2018
10% owner
Buy indirect
258,432
$17.00
$4.39M
Remeditex Ventures LLC
25 Jan 2018
10% owner
Buy
100,000
$17.00
$1.70M
venBio Global Strategic Fund II L.P.
25 Jan 2018
10% owner
Buy
265,000
$17.00
$4.51M

What was left out

Form 4 filings counted 268
Amendments (4/A) skipped 12
Filings about a different issuer 0
Unreadable filings 0
Joint filings 11
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 6
Transactions with no price 0
Shares from compensation/vesting 19,061,377
Sales filed before the plan box existed 6
History held since 29 Jan 2018