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Who

Bakker Juliet Tammenoms

Director

Company insider

Files Form 4 as: Director, RxSight; Director, CeriBell; 10% owner, Vera Therapeutics; 10% owner, Sierra Oncology; Director and 10% owner, Eargo; Director and 10% owner, Axonics Modulation Technologies; 10% owner, Inozyme Pharma; Director and 10% owner, Venus Concept.

In numbers

Trades disclosed
105
Buys
15
Sells
15
Bought
$59.5M
Sold
$50.2M
Companies
12
Companies where not an officer
12
First trade
6 Feb 2009
Last trade
17 Jun 2026
Last filed
18 Jun 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
RXST RxSightDirector · Medical Devices · last 17 Jun 20265 buys · 10 sells
CBLL CeriBellDirector · Medical Devices · last 2 Jun 20261 buy · 0 sells
VERA Vera Therapeutics10% owner · Biotechnology · last 10 Feb 20221 buy · 0 sells
Sierra Oncology10% owner · last 2 Feb 20221 buy · 0 sells
EargoDirector, 10% owner · last 17 May 20211 buy · 0 sells
Axonics Modulation TechnologiesDirector, 10% owner · last 18 Sep 20201 buy · 2 sells
Inozyme Pharma10% owner · last 28 Jul 20201 buy · 0 sells
Venus ConceptDirector, 10% owner · last 7 Nov 20190 buys · 0 sells
Molecular Templates10% owner · last 21 Sep 20181 buy · 0 sells
Aimmune Therapeutics10% owner · last 22 Feb 20182 buys · 0 sells
COLL Collegium Pharmaceutical10% owner · Pharmaceuticals · last 8 Dec 20170 buys · 1 sell
CORT Corcept Therapeutics10% owner · Pharmaceuticals · last 15 Dec 20161 buy · 2 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
17 Jun 2026filed 18 Jun 2026RXST RxSightMedical DevicesSEC FORM 4 Code A—37,037filing
17 Jun 2026filed 18 Jun 2026RXST RxSightMedical DevicesSEC FORM 4 Code A—37,037filing
2 Jun 2026filed 4 Jun 2026CBLL CeriBellMedical DevicesSEC FORM 4 Code A—7,838 at $0.00filing
2 Jun 2026filed 4 Jun 2026CBLL CeriBellMedical DevicesSEC FORM 4 Code A—7,838 at $0.00filing
10 Jun 2025filed 17 Jun 2025CBLL CeriBellMedical DevicesSEC FORM 4 Code A—8,828 at $0.00filing
3 Jun 2025filed 4 Jun 2025RXST RxSightMedical DevicesSEC FORM 4 Code A—10,752filing
15 Oct 2024filed 16 Oct 2024CBLL CeriBelloption or derivative · Medical DevicesSEC FORM 4 Code C—2,140,600 at $0.00filing
15 Oct 2024filed 16 Oct 2024CBLL CeriBellMedical DevicesSEC FORM 4 Code C—2,140,600filing
15 Oct 2024filed 16 Oct 2024CBLL CeriBellMedical DevicesSEC FORM 4 Bought$4.0M237,234 at $17.00filing
11 Oct 2024filed 16 Oct 2024CBLL CeriBellMedical DevicesSEC FORM 4 Code A—6,618 at $0.00filing
6 Jun 2024filed 10 Jun 2024RXST RxSightMedical DevicesSEC FORM 4 Code A—2,554filing
17 May 2024filed 21 May 2024RXST RxSightMedical DevicesSEC FORM 4 Bought$305K5,000 at $61.09filing
14 Feb 2024filed 15 Feb 2024RXST RxSightMedical DevicesSEC FORM 4 Bought$205K4,000 at $51.29filing
12 Feb 2024filed 15 Feb 2024RXST RxSightMedical DevicesSEC FORM 4 Bought$202K4,000 at $50.38filing
30 Nov 2023filed 30 Nov 2023RXST RxSightMedical DevicesSEC FORM 4 Code J—445,400 at $0.00filing
30 Nov 2023filed 30 Nov 2023RXST RxSightMedical DevicesSEC FORM 4 Code J—693 at $0.00filing
30 Nov 2023filed 30 Nov 2023RXST RxSightMedical DevicesSEC FORM 4 Code J—1,617 at $0.00filing
29 Nov 2023filed 30 Nov 2023RXST RxSightMedical DevicesSEC FORM 4 Sold$10.4M349,245 at $29.77filing
28 Nov 2023filed 30 Nov 2023RXST RxSightMedical DevicesSEC FORM 4 Sold$4.3M145,068 at $29.62filing
15 Nov 2023filed 16 Nov 2023RXST RxSightMedical DevicesSEC FORM 4 Sold$10.9M400,000 at $27.20filing

News

Sectors

Health Care21
Not placed9

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

Related people

Raymond WooChief Technology Officer · Chief Technology Officer at Ceribell, filing Form 4 there in the last year
Scott BlumbergChief Financial Officer · Chief Financial Officer at Ceribell, filing Form 4 there in the last year
Xingjuan ChaoPresident and CEO · President and CEO at Ceribell, filing Form 4 there in the last year
Eric WeinbergOfficer · Insider at RxSight, filing Form 4 there in the last year
David FoehrSenior VP, Finance and PAO · Senior VP, Finance and PAO at Ceribell, filing Form 4 there in the last year
Donald J. TrumpPresident · Also traded COLL and CORT in the last 90 days
James N. WilsonDirector · Also traded CORT in the last 90 days
Joseph Douglas LyonOfficer · Also traded CORT in the last 90 days