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GERON CORP

GERN Mostly scheduled
CIK 0000886744 #2537 in the set updated 21 Sep 2026
Bought (120 mo)
$286.14K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$23.16M
$0.00 on a plan · $22.92M straight out of an exercise
Sold at will
$241.27K
1 of 28 sales
Net
−$22.87M
+$44.87K against sales at will

By person

18 insiders · 41 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
SCARLETT JOHN A
Chairman, President and CEO
$22.06K (1)
$6.47M (4) scheduled
−$6.45M
12,500
0.0019%
$24.25K
ROSENFIELD STEPHEN
EVP, Chief Legal Off & Sec
$6.14M (7) scheduled
−$6.14M
0
0.0000%
$0.00
GRETHLEIN ANDREW J
EVP, Chief Operating Officer
$4.24M (3) scheduled
−$4.24M
0
0.0000%
$0.00
Kapur Anil
EVP, Corp Strategy & CCO
$1.96M (1) scheduled
−$1.96M
0
0.0000%
$0.00
Feller Faye
EVP, Chief Medical Officer
$1.33M (1) scheduled
−$1.33M
0
0.0000%
$0.00
Bloom Olivia Kyusuk
EVP, Chief Financial Officer
$1.23M (1) scheduled
−$1.23M
74,588
0.0116%
$144.70K
0.0%
Spiegel Robert J.
Director
$1.20M (6) scheduled
−$1.20M
205,810
0.0320%
$399.27K
+214.5%
BEHRS MELISSA KELLY
EVP, Chief Business Officer
$241.27K (1)
−$241.27K
0
0.0000%
$0.00
−100.0%
LAWLIS V BRYAN
Director
$15.67K (1)
$236.25K (2) scheduled
−$220.58K
13,300
0.0021%
$25.80K
Ziegler James
EVP, Chief Commercial Officer
$160.00K (1)
+$160.00K
100,000
0.0156%
$194.00K
Molineaux Susan
Director
$86.80K (1) scheduled
−$86.80K
238,507
0.0371%
$462.70K
+56.4%
O'Farrell Elizabeth G.
Director
$64.27K (5)
+$64.27K
53,268
0.0083%
$103.34K
+171.2%
Samuels Scott Alan
EVP, Chief Legal Officer
$24.15K (1)
+$24.15K
26,682
0.0042%
$51.76K
+128.4%
ROBERTSON MICHELLE
EVP, CHIEF FINANCIAL OFFICER
$19.12K (1) scheduled
−$19.12K
17,645
0.0027%
$34.23K
Huh Hoyoung
Director
154,301
0.0240%
$299.34K
+29.5%
EASTHAM KARIN
Director
109,047
0.0170%
$211.55K
+179.3%
BRADBURY DANIEL
Director
51,323
0.0080%
$99.57K
+372.5%
Aggarwal Gaurav
Director
1,970
0.0003%
$3.82K
Insider
Date
Role
Action
Shares
Price
Amount
BEHRS MELISSA KELLY
9 Apr 2019
EVP, Chief Business Officer
Sell
120,635
$2.00
$241.27K

What was left out

Form 4 filings counted 226
Amendments (4/A) skipped 3
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 27
Sales at will 1
Transactions with no price 0
Shares from compensation/vesting 6,195,952
Sales filed before the plan box existed 1
History held since 3 Oct 2016