Insider transactions

Cormorant Private Healthcare Fund IV LP

CIK 1871297 · last filed 2025-05-14

Cormorant Private Healthcare Fund IV LP is a corporate insider who has filed 2 SEC Form 4 insider transactions across 2 companies since 2024. The most recent filing shows the insider sold $289.4K of OKUR on May 14, 2025. Across all open-market trades the lifetime net is +$32.1M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $10.4M across reported positions. The firm reports its address in Boston, MA. 10 SEC filings were submitted jointly with Bihua Chen.

"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
$10.37M
Companies
2
Total Filings
2
Lifetime Open-Market Net
$32.11M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

BIOA price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

Filer Profile

Reported Address
200 CLARENDON STREET
52ND FLOOR
BOSTON, MA 02116
Phone
(857) 702-0370
State of Incorporation
DE
Related Filers
Bihua Chen — 10 joint filings, latest 2025-10-01
Cormorant Asset Management, LP — 10 joint filings, latest 2025-10-01
Cormorant Global Healthcare Master Fund, LP — 8 joint filings, latest 2025-10-01
Cormorant Private Healthcare Fund III LP — 6 joint filings, latest 2025-10-01
Cormorant Private Healthcare Fund V LP — 5 joint filings, latest 2025-05-19
Cormorant Private Healthcare Fund II, LP — 3 joint filings, latest 2025-10-01
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
OKUR 10%+ Owner 1,813,439 $2.48 $4.49M -$289.4K 1 2025-05-14
BIOA 1,179,529 $4.99 $5.89M $32.40M 1 2024-10-01

Recent Filings

2 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
2025-05-14 OKUR Sell (S) −145,800 -$289.4K EDGAR
2024-10-01 BIOA Mixed +6,518,116 $32.40M 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.