BVF PARTNERS L P/IL

CIK 1055947 · last filed 2025-07-01

BVF PARTNERS L P/IL is a corporate insider who has filed 56 SEC Form 4 insider transactions across 26 companies since 2008. The most recent filing, for KYMR, was dated Jun 26, 2026. Across all open-market trades the lifetime net is +$77.4M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $3.11B 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.

Loading insider history…
Disclosed Exposure

$3.11B

Companies

26

Total Filings

56

Lifetime Open-Market Net

$77.38M

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
KYMR Director 353,412 $106.16 $37.52M $139.55M 1 2025-07-01
PVLA 282,223 $142.84 $40.31M $0 1 2024-12-17
MLTX Director 9,005,700 $18.71 $168.50M $0 1 2024-06-10
ELDN 10%+ Owner 3,361,803 $3.40 $11.43M $0 1 2024-05-13
XOMAP Director 1,556,696 $24.98 $38.89M $0 1 2022-05-20
RAIN Director 1,367,838 $1.32 $1.81M $266.23M 3 2022-01-10
Merus N.V. (MRUS) Delisted 10%+ Owner 1,578,732 $90.00 $142.09M -$290.16M 3 2021-10-08
OLMA Director 535,638 $11.62 $6.22M $0 1 2021-05-26
INFINITY PHARMACEUTICALS, INC. (INFI) Delisted 10%+ Owner 3,279,831 $0.04 $146.6K $1.47M 2 2021-02-19
CTMX 358,450 $3.22 $1.15M $0 1 2021-02-18
XOMA 10%+ Owner 2,194,410 $40.17 $88.15M $1.20M 1 2020-08-20
FIVE PRIME THERAPEUTICS, INC. (FPRX) Delisted 10%+ Owner 346,627 $38.00 $13.17M $4.44M 1 2019-10-25
CTI BIOPHARMA CORP (CTIC) Delisted 10%+ Owner 2,734,725 $9.09 $24.86M $8.53M 2 2017-06-14
ALPINE IMMUNE SCIENCES, INC. (NVLS) Delisted 10%+ Owner 274,882 $1.16M 1 2017-06-07
Cascadian Therapeutics, Inc. (ONTY) Delisted 10%+ Owner 3,298,293 $5.57M 2 2014-12-17
Tobira Therapeutics, Inc. (RGDO) Delisted 124,580 $0 1 2014-03-25
PTN 10%+ Owner 17,525 $7.68 $134.6K -$5.62M 2 2014-03-03
CCXI 10%+ Owner 2,079,532 $14.52 $30.19M $10.51M 3 2013-12-05
LGND 10%+ Owner 4,506,145 $296.28 $1.34B -$46.58M 7 2013-01-25
NBIX 10%+ Owner 6,658,212 $182.83 $1.22B -$8.66M 4 2012-02-10
ICAGEN INC (ICGN) Delisted 10%+ Owner 219,700 $4.56M 1 2011-09-09
CAPS 10%+ Owner 820 $0.25 $204 $149.9K 1 2011-06-29
Celera CORP (CRA) Delisted 10%+ Owner 18,772,784 $8.96M 1 2011-04-07
RPRX 10%+ Owner 2,297,776 $59.97 $137.80M -$4.03M 1 2009-09-21
DYNAVAX TECHNOLOGIES CORP (DVAX) Delisted 10%+ Owner 855,770 $15.50 $13.26M -$20.11M 1 2009-09-11
EPIRUS Biopharmaceuticals, Inc. (CRXX) Delisted 10%+ Owner 8,459,999 $181.2K 3 2008-12-05

Recent Filings

56 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
2026-06-26 KYMR Notice (144) −1,630,658 -$189.91M EDGAR
2026-03-31 MLTX Notice (144) −3,750,000 -$63.49M EDGAR
2025-07-01 KYMR Mixed +3,171,670 $139.55M EDGAR
2024-12-17 PVLA Other (J) +4,389,290 $0 EDGAR
2024-06-10 MLTX Grant (A) $0 EDGAR
2024-05-13 ELDN Buy (P) +19,279,370 $0 EDGAR
2022-05-20 XOMAP Grant (A) $0 EDGAR
2022-01-10 RAIN Buy (P) +5,577,280 $66.93M EDGAR
2021-10-08 Merus N.V. (MRUS) Delisted Sell (S) −11,327,140 -$312.22M EDGAR
2021-05-26 OLMA Other (J) +995,560 $0 EDGAR
Showing 110 of 56
Page 1 of 6
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.