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Who

Krishna Kittu Kolluri

Director

Company insider

Files Form 4 as: Director and 10% owner, BillionToOne; 10% owner, Heliogen; 10% owner, Achaogen; 10% owner, Tracon Pharmaceuticals; 10% owner, Ra Pharmaceuticals; 10% owner, Roka BioScience; 10% owner, Interleukin Genetics; 10% owner, Ardelyx.

Every Form 4 they filed

In numbers

Trades disclosed
527
Buys
26
Sells
34
Bought
$202.9M
Sold
$190.8M
Companies
36
Companies where not an officer
36
First trade
10 Oct 2007
Last trade
26 Aug 2026
Last filed
28 Aug 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
BLLN BillionToOneDirector, 10% owner · Diagnostics & Labs · last 26 Aug 20260 buys · 0 sells
Heliogen10% owner · last 9 Aug 20220 buys · 2 sells
Achaogen10% owner · last 19 Dec 20161 buy · 0 sells
Tracon Pharmaceuticals10% owner · last 29 Nov 20162 buys · 0 sells
Ra Pharmaceuticals10% owner · last 31 Oct 20161 buy · 1 sell
Roka BioScience10% owner · last 21 Sep 20161 buy · 0 sells
Interleukin Genetics10% owner · last 29 Jul 20162 buys · 0 sells
ARDX Ardelyx10% owner · Biotechnology · last 18 Jul 20163 buys · 1 sell
Tesaro10% owner · last 18 Mar 20162 buys · 2 sells
Epizyme10% owner · last 12 Jan 20164 buys · 2 sells
SUPN Supernus Pharmaceuticals10% owner · Pharmaceuticals · last 11 Nov 20150 buys · 0 sells
AVTX Avalo Therapeutics10% owner · Biotechnology · last 20 Oct 20150 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
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—129,780 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—10,921 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—719 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—719 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—5,761 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—1,666 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—15,244 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—5,644 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—7,980 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—7,980 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—24,222 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—2,405 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—2,405 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—271,028 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—38,106 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—38,106 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—129,780 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—7,980 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—7,980 at $0.00filing
26 Aug 2026filed 28 Aug 2026BLLN BillionToOneDiagnostics & LabsSEC FORM 4 Code J—24,222 at $0.00filing

The newest 500 lines are listed; the numbers count every line.

Sectors

Health Care5
Communications1
Not placed54

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

Related people

Thomas P. LynchOfficer · Officer at BillionToOne, filing Form 4 there in the last year
Oguzhan AtayChairman and CEO · Chairman and CEO at BillionToOne, filing Form 4 there in the last year
John Roderick ten BoschSVP of Laboratory Operations · SVP of Laboratory Operations at BillionToOne, filing Form 4 there in the last year
David TsaoChief Technology Officer · Chief Technology Officer at BillionToOne, filing Form 4 there in the last year
Shan Riku SakakibaraChief Product Officer · Chief Product Officer at BillionToOne, filing Form 4 there in the last year
Eric Duane FosterChief Commercial Officer · Also traded ARDX in the last 90 days
James Parker BradyChief Human Resources Officer · Also traded ARDX in the last 90 days
John E. BishopOfficer · Also traded ARDX in the last 90 days