BIOS Fund II, LP

CIK 1714576 · last filed 2024-08-14

BIOS Fund II, LP is a corporate insider who has filed 8 SEC Form 4 insider transactions across 4 companies since 2020. The most recent filing, for LTRN, was dated May 27, 2025. Across all open-market trades the lifetime net is +$18.9M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $1.1M 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.

Disclosed Exposure

$1.11M

Companies

4

Total Filings

8

Lifetime Open-Market Net

$18.87M

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
ACTU	Director	84,917	$1.06	$90.0K	$0	1	2024-08-14
CGTX	10%+ Owner	255,765	$0.92	$236.2K	$18.00M	1	2022-11-16
INAB	Director	18,437	$1.11	$20.5K	$868.5K	2	2022-08-18
LTRN	10%+ Owner	294,557	$2.60	$765.8K	$0	1	2020-06-16

Recent Filings

8 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
2025-05-27	LTRN	Notice (144)	−53,454	-$175.9K	EDGAR
2024-08-14	ACTU	—	—	$0	EDGAR
2024-04-26	LTRN	Notice (144)	−124,887	-$666.9K	EDGAR
2024-02-28	LTRN	Notice (144)	−30,650	-$119.8K	EDGAR
2022-11-16	CGTX	Buy (P)	+15,000,000	$18.00M	EDGAR
2022-08-18	INAB	Buy (P)	+450,000	$868.5K	EDGAR
2021-08-03	INAB	Conv (C)	+59,625,918	$0	EDGAR
2020-06-16	LTRN	Mixed	+14,566,480	$0	EDGAR

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.