Jack Nielsen

CIK 1602402 · last filed 2024-05-31

Jack Nielsen is a corporate insider who has filed 52 SEC Form 4 insider transactions across 7 companies since 2016. The most recent filing, for HRMY, was dated May 31, 2024. Across all open-market trades the lifetime net is −$80.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $96.3M 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.

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Disclosed Exposure

$96.26M

Companies

7

Total Filings

52

Lifetime Open-Market Net

-$80.18M

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
HRMY Director 2,571,024 $35.80 $92.04M -$95.31M 29 2024-05-31
ALGS Director $4.69 $0 4 2024-02-28
TIL Director 585,485 $7.20 $4.22M $6.00M 4 2024-01-10
ALXO Director $2.02 $0 4 2023-06-22
IO Biotech, Inc. (IOBT) Delisted Director 2,365,545 $0.05 $113.5K $9.10M 3 2023-06-13
REATA PHARMACEUTICALS INC (RETA) Delisted Director 1,780 $172.36 $306.8K $30.3K 7 2021-06-14
CRNX Director $83.65 $0 1 2019-06-25

Recent Filings

52 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2024-05-31 HRMY Grant (A) $0 EDGAR
2024-02-28 ALGS Mixed $0 EDGAR
2024-01-10 TIL Grant (A) $0 EDGAR
2023-07-21 ALGS Grant (A) $0 EDGAR
2023-06-22 ALXO Grant (A) $0 EDGAR
2023-06-13 IO Biotech, Inc. (IOBT) Delisted Grant (A) $0 EDGAR
2023-05-26 HRMY Grant (A) $0 EDGAR
2022-12-16 HRMY Sell (S) −2,834 -$169.9K EDGAR
2022-12-09 HRMY Sell (S) −110,751 -$6.66M EDGAR
2022-12-01 HRMY Sell (S) −129,652 -$7.69M EDGAR
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Form 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.