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ASSEMBLY BIOSCIENCES, INC.

ASMB Net buying
CIK 0001426800 #2862 in the set updated 19 Sep 2026
Bought (120 mo)
$21.67M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$2.82M
$0.00 on a plan · $1.26M straight out of an exercise
Sold at will
$1.56M
63 of 74 sales
Net
+$18.85M
+$20.11M against sales at will

By person

19 insiders · 91 transactions
4.0×

Jason A. Okazaki holds only 4.0 times base salary in stock. $2.60M of shares against $647.50K in salary for 2025.

Salary from the company's own proxy. The shares are what Jason A. Okazaki last reported holding, valued at $23.25, the price Common Stock was last bought or sold at on the open market here, on 17 Jun 2026.

Insider
Role
Bought
Sold
Net
Holding
Worth
Change
GILEAD SCIENCES, INC. entity
10% owner
$20.10M (3)
+$20.10M
4,977,089
$115.72M
+356.8%
Schornstein Alexander
10% owner
$1.42M (10)
+$1.42M
728,113
$16.93M
Colonno Richard James
EVP & CSO, Virology Ops
$944.10K (2) scheduled
−$944.10K
137,009
$3.19M
+8,621%
Lopatin Uri A
Chief Medical Officer
$622.99K (2)
−$622.99K
632,361
$14.70M
+0.9%
RINGO WILLIAM R
Director
$510.39K (11) scheduled
−$510.39K
17,465
$406.06K
−14.7%
McHutchison John G
Director
$439.00K (10)
−$439.00K
18,347
$426.57K
Okazaki Jason A
CEO and President
$101.15K (14)
−$101.15K
111,916
$2.60M
Small Derek A
Director
$99.55K (2)
+$99.55K
828,791
$19.27M
+30.2%
Papkoff Jacqueline Sybil
SVP-CSO Microbiome
$56.48K (3)
−$56.48K
37,364
$868.71K
Delaney William E IV
Chief Scientific Officer
$52.38K (8)
−$52.38K
45,642
$1.06M
Houghton Michael
Director
$50.00K (1)
+$50.00K
3,202
$74.45K
White Nicole S
Chief Manufacturing Officer
$44.27K (11)
−$44.27K
37,477
$871.34K
Stamm Luisa M
Chief Medical Officer
$24.65K (2)
−$24.65K
40,315
$937.32K
Bjorkquist Jeanette M
PFO and PAO
$14.87K (9)
−$14.87K
14,560
$338.52K
Samar Michael P.
Chief Financial Officer
$9.43K (2)
−$9.43K
77,228
$1.80M
+84.6%
COOPER GRAHAM K
See Remarks
117,500
$2.73M
Russo Thomas Joseph
CFO
54,633
$1.27M
Gaggar Anuj
Chief Medical Officer
28,000
$651.00K
Rollins Thomas E
Chief Development Officer
3,750
$87.19K

No percentages here. This company's share count has moved by a factor of 3.2 over the window, from 6,356,286 to 20,360,596 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
Colonno Richard James
12 Dec 2019
EVP & CSO, Virology Ops
Sold after exercise
33,061
$25.00
$826.58K
RINGO WILLIAM R
2 Jul 2018
Director
Sold after exercise
1,000
$38.50
$38.50K
RINGO WILLIAM R
1 Jun 2018
Director
Sold after exercise
1,000
$42.47
$42.47K
RINGO WILLIAM R
1 May 2018
Director
Sold after exercise
1,000
$43.06
$43.06K
RINGO WILLIAM R
2 Apr 2018
Director
Sold after exercise
1,000
$49.32
$49.32K
RINGO WILLIAM R
1 Mar 2018
Director
Sold after exercise
1,000
$56.37
$56.37K
RINGO WILLIAM R
1 Feb 2018
Director
Sold after exercise
1,000
$46.86
$46.86K
RINGO WILLIAM R
2 Jan 2018
Director
Sold after exercise
1,000
$45.04
$45.04K
RINGO WILLIAM R
1 Dec 2017
Director
Sold after exercise
1,000
$49.37
$49.37K
RINGO WILLIAM R
1 Nov 2017
Director
Sold after exercise
1,000
$29.55
$29.55K
RINGO WILLIAM R
16 Oct 2017
Director
Sold after exercise
1,000
$33.70
$33.70K

What was left out

Form 4 filings counted 216
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 11
Sales at will 63
Transactions with no price 2
Shares from compensation/vesting 2,227,303
Sales filed before the plan box existed 21
History held since 31 Mar 2017