SEC ownership of MoonLake Immunotherapeutics

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001821586.

Comparable stake leader

BIOTECHNOLOGY VALUE FUND L P

Disclosed value leader

BVF INC/IL

Comparable rows

50/50

Latest evidence

30 Jun 2026

Top shareholders Insider holders Latest transactions
Public ticker
MLTX on Nasdaq
Parsed ownership sources
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
BIOTECHNOLOGY VALUE FUND L P
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
BIOTECHNOLOGY VALUE FUND L P
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
30 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001821586
Issuer location
Zug, Switzerland

Ownership snapshot

Top shareholders of MoonLake Immunotherapeutics (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
BIOTECHNOLOGY VALUE FUND L P
Disclosed value leader
BVF INC/IL
Comparable rows
50/50
Latest evidence
30 Jun 2026
13D/G 3/4/5 13F Lead comparable stake: 20% 13D/G row: BIOTECHNOLOGY VALUE FUND L P Showing 1-8 of 50 holder rows.

Quick read

BIOTECHNOLOGY VALUE FUND L P leads the comparable SEC ownership view at 20%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens BIOTECHNOLOGY VALUE FUND L P's linked filing trail.
Comparable ownership Top 5
BIOTECHNOLOGY VALUE FUND L P 20%
Deep Track Capital, LP 9.7%
T. Rowe Price Investment Manageme... 5.3%
PRICE T ROWE ASSOCIATES INC /MD/ 4.7%
Cormorant Asset Management, LP 4.4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
BIOTECHNOLOGY VALUE FUND L P
13D/G 3/4/5
BVF PARTNERS L P/IL · Director, 10%+ Owner
13D/G 3/4/5
20%
$298,903,985
16,001,284 shares
 $0 25 Jun 2026
Deep Track Capital, LP
13D/G 13F
Company
13D/G 13F
9.7%
$162,860,149
7,999,025 shares
 +$68,999,103 30 Jun 2026
T. Rowe Price Investment Management, Inc.
13D/G 13F
Company
13D/G 13F
5.3%
$87,153,505
4,280,624 shares
 $0 30 Jun 2026
PRICE T ROWE ASSOCIATES INC /MD/
13D/G 13F
T. Rowe Price Associates, Inc. · Company
13D/G 13F
4.7%
$117,334,991
2,974,271 shares
 -$14,571,725 31 Mar 2025
Cormorant Asset Management, LP
13D/G 13F
Company
13D/G 13F
4.4%
$65,262,616
3,205,433 shares
 -$25,959,000 30 Jun 2026
Avoro Capital Advisors LLC
13D/G
13D/G
3.2%
$14,340,000
2,000,000 shares
 -$15,415,500 30 Sep 2025
Bihua Chen
13D/G 3/4/5
Chen Bihua · Former 10% Owner
13D/G 3/4/5
3.1%
$108,084,177
1,994,173 shares
 $0 30 Sep 2025
FMR LLC
13D/G 13F
Company
13D/G 13F
1.1%
$5,212,098
726,931 shares
 -$35,678,759 30 Sep 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$696,458,495.

Buys
$98,808
Insiders: 1
Sells
$696,557,303
Insiders: 14
Net
-$696,458,495
Shares: -45,116,239
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 10,870 Shares: 45,127,109
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 470,349 $0 $9,340,073 -$9,340,073
3-6 0 37,753,874 $0 $634,361,883 -$634,361,883
6-9 0 402,908 $0 $5,987,162 -$5,987,162
9-12 10,870 6,499,978 $98,808 $46,868,184 -$46,769,376

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 21 reporting-owner rows connected to MoonLake Immunotherapeutics. Open a relationship link for the CIK-to-CIK filing trail.

Rows
21
Largest Forms 3/4/5 holder
Helix Holdings LLC
Net 12M change
-$696,458,494
Latest report
27 Jul 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Helix Holdings LLC Former 10% Holder $192,569,820 Mixed 05 Apr 2022
Jorge Santos da Silva Chief Executive Officer, Director $55,553,357 -$8,730,001 -14% Filing P/S 09 Jul 2026
Kristian Reich Chief Scientific Officer $54,912,980 -$8,135,616 -13% Mixed 27 Jul 2026
Matthias Bodenstedt Chief Financial Officer $24,584,187 -$3,099,693 -11% Filing P/S 22 Jun 2026
BVF II GP LLC Director, Other* $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
BVF PARTNERS L P/IL Director, 10%+ Owner $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
BVF GP HOLDINGS LLC Director, 10%+ Owner $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
BIOTECHNOLOGY VALUE FUND L P Director, 10%+ Owner $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
BIOTECHNOLOGY VALUE FUND II LP Director, Other* $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
BVF I GP LLC Director, 10%+ Owner $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
Biotechnology Value Trading Fund OS LP Director, Other* $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
BVF Partners OS Ltd. Director, Other* $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
Mark N. Lampert Director, 10%+ Owner $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
BVF INC/IL Director, 10%+ Owner $19,785,998 -$62,962,500 -76% Mixed 17 Jun 2026
Bihua Chen Former 10% Owner $13,879,444 -$46,868,184 -77% Filing P/S 29 Sep 2025
Simon Sturge Director $9,238,766 Filing P/S 05 Jun 2025
Catherine Moukheibir Director $0 Mixed 17 Jun 2026
Spike Loy Director Mixed 17 Jun 2026
Ramnik Xavier Director Mixed 17 Jun 2026
Andrew John Phillips Director Mixed 17 Jun 2026

Recent insider transactions for MoonLake Immunotherapeutics

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Kristian Reich MLTX Class A ordinary shares, par value $0.0001 per share Sale -0.04% $22,000 $20.00 -1,100 2,711,198 27 Jul 2026 See footnote.
Kristian Reich MLTX Class A ordinary shares, par value $0.0001 per share Sale -0.09% $48,960 $20.00 -2,448 2,712,298 22 Jul 2026 See footnote.
Kristian Reich MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.81% $1,001,000 $20.02 -50,000 2,714,746 21 Jul 2026 See footnote.
Kristian Reich MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.56% $877,933 $20.09 -43,700 2,764,746 20 Jul 2026 See footnote.
Kristian Reich MLTX Class A ordinary shares, par value $0.0001 per share Sale -0.57% $322,261 $20.01 -16,105 2,808,446 15 Jul 2026 See footnote.
Jorge Santos da Silva MLTX Class A ordinary shares, par value $0.0001 per share Sale -2.4% $1,367,146 $20.02 -68,289 2,774,893 10 Jul 2026 Direct
Jorge Santos da Silva MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.18% $679,059 $20.01 -33,936 2,843,182 09 Jul 2026 Direct
Jorge Santos da Silva MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.63% $956,933 $20.03 -47,775 2,877,118 01 Jul 2026 Direct
Matthias Bodenstedt MLTX Class A ordinary shares, par value $0.0001 per share Sale -3.39% $862,205 $22.04 -39,120 1,115,435 22 Jun 2026 Direct
Matthias Bodenstedt MLTX Class A ordinary shares, par value $0.0001 per share Sale -0.24% $54,762 $19.60 -2,794 1,154,555 18 Jun 2026 Direct
BVF PARTNERS L P/IL MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Bvf Partners L P/Il MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Bvf Partners L P/Il MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Bvf Partners L P/Il MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Bvf Partners L P/Il MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Bvf Partners L P/Il MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Bvf Partners L P/Il MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Bvf Partners L P/Il MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Bvf Partners L P/Il MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Bvf Partners L P/Il MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 See footnote
Matthias Bodenstedt MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.29% $296,814 $19.68 -15,082 1,157,349 17 Jun 2026 Direct
Andrew John Phillips MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 Direct
Spike Loy MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 Direct
Catherine Moukheibir MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 Direct
Ramnik Xavier MLTX Option to Buy Award 22,195 22,195 17 Jun 2026 Direct
Kristian Reich MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.74% $971,500 $19.43 -50,000 2,824,551 17 Jun 2026 See footnote.
Kristian Reich MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.71% $935,000 $18.70 -50,000 2,874,551 16 Jun 2026 See footnote.
Kristian Reich MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.68% $944,500 $18.89 -50,000 2,924,551 15 Jun 2026 See footnote.
Matthias Bodenstedt MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.15% $273,333 $20.02 -13,653 1,172,431 11 May 2026 Direct
Matthias Bodenstedt MLTX Class A ordinary shares, par value $0.0001 per share Sale -0.2% $47,453 $19.56 -2,426 1,186,084 14 Apr 2026 Direct
Jorge Santos da Silva MLTX Class A ordinary shares, par value $0.0001 per share Sale -1.74% $945,645 $18.23 -51,873 2,924,893 13 Apr 2026 Direct
Jorge Santos da Silva MLTX Class A ordinary shares, par value $0.0001 per share Sale -3.19% $1,806,518 $18.41 -98,127 2,976,766 10 Apr 2026 Direct
Matthias Bodenstedt MLTX Class A ordinary shares, par value $0.0001 per share Sale -0.16% $37,557 $19.51 -1,925 1,188,510 10 Apr 2026 Direct
Matthias Bodenstedt MLTX Class A ordinary shares, par value $0.0001 per share Sale -6.73% $1,626,378 $18.94 -85,870 1,190,435 09 Apr 2026 Direct
BVF PARTNERS L P/IL MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Bvf Partners L P/Il MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Bvf Partners L P/Il MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Bvf Partners L P/Il MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Bvf Partners L P/Il MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Bvf Partners L P/Il MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Bvf Partners L P/Il MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Bvf Partners L P/Il MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Bvf Partners L P/Il MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Bvf Partners L P/Il MLTX Class A Ordinary Shares, $0.0001 par value Sale -78.3% $62,962,500 $16.79 -3,750,000 1,039,238 31 Mar 2026 Direct
Matthias Bodenstedt MLTX Class A ordinary shares, par value $0.0001 per share Award 38.4% 354,296 1,276,305 07 Jan 2026 Direct
Jorge Santos da Silva MLTX Stock Option (Right to Buy) Award 520,342 520,342 07 Jan 2026 Direct
Kristian Reich MLTX Stock Option (Right to Buy) Award 520,342 520,342 07 Jan 2026 Direct
Matthias Bodenstedt MLTX Class C ordinary shares, par value $0.0001 per share Disposed to Issuer -100% -294,473 0 19 Dec 2025 Direct
Matthias Bodenstedt MLTX Class A ordinary shares, par value $0.0001 per share Conversion of derivative security 46.9% 294,473 922,009 19 Dec 2025 Direct
Matthias Bodenstedt MLTX Common shares, par value CHF 0.10 per share, of MoonLake AG Conversion of derivative security -100% -8,754 0 19 Dec 2025 Direct
* marks a reported price that did not pass the local price check.
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