Nina S Kjellson

CIK 1381980 · last filed 2026-06-10

Nina S Kjellson is a corporate insider who has filed 31 SEC Form 4 insider transactions across 6 companies since 2010. The most recent filing, for ELOX, was dated Jun 10, 2026. Across all open-market trades the lifetime net is +$4.9M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $12.0M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$11.98M

Companies

6

Total Filings

31

Lifetime Open-Market Net

$4.92M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
ELOX Director $13.52 $0 1 2026-06-10
TYRA Director 443,885 $26.99 $11.98M -$4.41M 12 2025-02-07
Eiger BioPharmaceuticals, Inc. (EIGR) Delisted Director $1.73 $0 3 2017-04-14
Cidara Therapeutics, Inc. (CDTX) Delisted Director 1,356,813 $221.38 $300.37M $3.20M 1 2015-04-22
Trius Therapeutics Inc (TSRX) Delisted Director 3,548,643 $6.14M 5 2013-05-23
Marketo, Inc. (MKTO) Delisted 10%+ Owner 9,747,191 $0 1 2013-05-22

Recent Filings

31 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-06-10 ELOX Grant (A) $0 EDGAR
2025-02-07 TYRA Sell (S) −5,401 -$74.3K EDGAR
2025-01-27 TYRA Sell (S) −4,825 -$78.5K EDGAR
2025-01-21 TYRA Sell (S) −25,041 -$409.6K EDGAR
2024-11-26 TYRA Sell (S) −5,272 -$88.8K EDGAR
2024-11-08 TYRA Sell (S) −74,582 -$1.28M EDGAR
2024-11-06 TYRA Sell (S) −11,569 -$194.2K EDGAR
2024-11-01 TYRA Sell (S) −138,711 -$2.28M EDGAR
2024-05-31 TYRA Grant (A) $0 EDGAR
2023-06-02 TYRA Grant (A) $0 EDGAR
Showing 110 of 31
Page 1 of 4
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.