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Who

Robin Kramer

Director

Company insider

Files Form 4 as: Director, Armata Pharmaceuticals; Chief Financial Officer, Biogen; Sr VP Chief Accounting Officer, Hertz Global Holdings; Sr VP, ChiefAccountingOfficer, Herc Holdings.

In numbers

Trades disclosed
154
Buys
0
Sells
2
Bought
$0
Sold
$183K
Companies
4
Companies where not an officer
1
First trade
17 Feb 2015
Last trade
9 Mar 2026
Last filed
11 Mar 2026

Companies traded

Where they are an officer
BIIB BiogenOfficer · Biotechnology · last 13 Feb 20260 buys · 0 sells
HTZ Hertz Global HoldingsOfficer · Consumer Services · last 29 Apr 20180 buys · 2 sells
HRI Herc HoldingsOfficer · Distributors & Wholesale · last 15 May 20160 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
ARMP Armata PharmaceuticalsDirector · Biotechnology · last 9 Mar 20260 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
9 Mar 2026filed 11 Mar 2026ARMP Armata Pharmaceuticalsoption or derivative · BiotechnologySEC FORM 4 Code A—25,640 at $0.00filing
9 Mar 2026filed 11 Mar 2026ARMP Armata Pharmaceuticalsoption or derivative · BiotechnologySEC FORM 4 Code A—25,640 at $0.00filing
13 Feb 2026filed 17 Feb 2026BIIB Biogenoption or derivative · BiotechnologySEC FORM 4 Code A—8,450 at $0.00filing
13 Feb 2026filed 17 Feb 2026BIIB Biogenoption or derivative · BiotechnologySEC FORM 4 Code A—8,450 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code M—789 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code F$55K273 at $201.18filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code M—703 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB Biogenoption or derivative · BiotechnologySEC FORM 4 Code M—789 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB Biogenoption or derivative · BiotechnologySEC FORM 4 Code M—703 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB Biogenoption or derivative · BiotechnologySEC FORM 4 Code M—3,511 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code F$42K207 at $201.18filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code M—3,511 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code F$214K1,063 at $201.18filing
6 Feb 2026filed 10 Feb 2026BIIB Biogenoption or derivative · BiotechnologySEC FORM 4 Code M—789 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB Biogenoption or derivative · BiotechnologySEC FORM 4 Code M—703 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code M—789 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code F$55K273 at $201.18filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code M—703 at $0.00filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code F$42K207 at $201.18filing
6 Feb 2026filed 10 Feb 2026BIIB BiogenBiotechnologySEC FORM 4 Code M—3,511 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Consumer Discretionary2

Buys in green, sells in red, by the company’s sector.

Related people

Christopher G. BergEVP, Chief Admin. Officer · EVP, Chief Admin. Officer at Hertz Global Holdings, filing Form 4 there in the last year
Sean GodboutChief Accounting Officer · Chief Accounting Officer at Biogen, filing Form 4 there in the last year
Michael S. MooreEVP, Chief Operating Officer · EVP, Chief Operating Officer at Hertz Global Holdings, filing Form 4 there in the last year
Mark KosmanSVP, Chief Accounting Officer · SVP, Chief Accounting Officer at Hertz Global Holdings, filing Form 4 there in the last year
Evangeline VougessisDirector · Director at Hertz Global Holdings, filing Form 4 there in the last year