Reporting owner · CIK 0001660684

BVF Partners OS Ltd.

Visual SEC Form 4 history across 4 companies, 17 transactions and 4 filings.

DIRIMMUNIC, INC.
Open-market mix
Latest filingSep 18, 2026, 11:45 PM
Filings4Form 4 records
Buying$00 purchases
Selling$17M4 sales
Net value−$17MBuys minus sells
Companies45 securities
Most recentSep 16, 2026grant

Open-market buy performance

90-day forward return on this insider's open-market purchases

90d forward
Forward return is not available yet

We compute this from each buy's stock performance 90 days after the transaction. The price history is still being populated for this insider's their open-market buys, so the average and median will appear here once the daily price refresh has covered the relevant trading days.

Monthly open-market activity

Reported purchase and sale transaction counts

Buys Sells
530-3-54Jan 25Jan 26Sep 26

Net value flow

Buys minus sells

Jan 25
−$17M
Jan 26
$0
Sep 26
$0

Transaction texture

Ownership and ticket size

Average P/S size$4.2M
Median P/S size$3.1M
Direct15
Indirect2
Sep 16, 2026grant

Filing-only signals

Deterministic matches in this insider's history

Cluster Sellingpattern4Derivative Transactionfiling-context3Direct Ownershipfiling-context15Large Salesize4Repeat Sellerpattern3

Latest Form 4 facts

Quick context from source filings

Latest transaction

sale at XOMA Royalty Corp on Jan 24, 2025 valued at $3,914,348.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Latest sale

sale at XOMA Royalty Corp on Jan 24, 2025 valued at $3,914,348.

Review SEC filing

Associated companies

Visual map of known reporting history

IMUXIMMUNIC, INC.1 transactions · latest Sep 18, 2026, 11:45 PMRPTXRepare Therapeutics Inc.6 transactions · latest Jan 30, 2026, 12:00 AMXOMAXOMA Royalty Corp4 transactions · latest Jan 28, 2025, 10:23 PMOLMAOlema Pharmaceuticals, Inc.6 transactions · latest Jan 14, 2025, 11:38 PM

Latest insider transactions

Form 4 filings from available history. Click any column to sort; click it again to flip the order.

BVF Partners OS Ltd. transactions
IDTickerInsiderRoleTypeSharesValueCodeFiledTrans date
#226250IMUXBVF Partners OS Ltd.
DIR
grant25.3k$0A09/1809/16
#79597RPTXBVF Partners OS Ltd.
SER
unknown548k—U01/3001/28
#79596RPTXBVF Partners OS Ltd.
SER
unknown4.30M—U01/3001/28
#79594RPTXBVF Partners OS Ltd.
SER
unknown5.30M—U01/3001/28
#79591RPTXBVF Partners OS Ltd.
SER
unknown548k—U01/3001/28
#79590RPTXBVF Partners OS Ltd.
SER
unknown4.30M—U01/3001/28
#79589RPTXBVF Partners OS Ltd.
SER
unknown5.30M—U01/3001/28
#52834XOMABVF Partners OS Ltd.
SER
sale149k-$391MS01/28/202501/24/2025
#52833XOMABVF Partners OS Ltd.
SER
sale75.2k-$196MS01/28/202501/24/2025
#52832XOMABVF Partners OS Ltd.
SER
sale85.7k-$223MS01/28/202501/24/2025

BVF Partners OS Ltd. Insider Activity FAQ

SEC Form 4 context

Who is BVF Partners OS Ltd.?

BVF Partners OS Ltd. is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001660684.

Which companies has BVF Partners OS Ltd. reported transactions for?

IMMUNIC, INC., Repare Therapeutics Inc., XOMA Royalty Corp, Olema Pharmaceuticals, Inc.

When was BVF Partners OS Ltd.'s latest insider buy?

No open-market insider purchase is available for this period.

When was BVF Partners OS Ltd.'s latest insider sale?

sale at XOMA Royalty Corp on Jan 24, 2025 valued at $3,914,348.

Where can I see the original SEC filings?

Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.

Are performance metrics included?

This version does not calculate win rates, forward returns, benchmark-adjusted returns, or high-conviction scores.