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Jeffrey S. Hackman

CIK 1926254 · Chief Executive Officer · last filed 2026-07-01

Jeffrey S. Hackman is a Chief Executive Officer who has filed 13 SEC Form 4 insider transactions across 2 companies since 2022. The most recent filing, for FENC, was dated Jul 1, 2026. Across all open-market trades the lifetime net is +$202.7K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $636.0K 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

$636.0K

Companies

2

Total Filings

13

Lifetime Open-Market Net

$202.7K

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
FENC Chief Executive Officer 63,984 $9.94 $636.0K $104.6K 9 2026-07-01
Comera Life Sciences Holdings, Inc. (CMRAW) Delisted See Remarks. 47,600 $0.02 $919 $98.1K 4 2023-09-28

Recent Filings

13 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
2026-07-01 FENC Grant (A) +1,159 $0 EDGAR
2026-06-01 FENC Grant (A) +1,159 $0 EDGAR
2026-05-01 FENC Exer (M) +1,159 $0 EDGAR
2026-04-02 FENC Mixed +31,797 $0 EDGAR
2026-02-19 FENC Exer (M) +13,710 $0 EDGAR
2025-05-19 FENC Buy (P) +15,000 $104.6K EDGAR
2025-04-03 FENC Grant (A) — $0 EDGAR
2025-04-03 FENC Grant (A) — $0 EDGAR
2024-08-19 FENC Grant (A) — $0 EDGAR
2023-09-28 Comera Life Sciences Holdings, Inc. (CMRAW) Delisted Grant (A) — $0 EDGAR
Showing 1–10 of 13
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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.