SEC ownership of Kardigan, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002123613.

Comparable stake leader

HRTG GPE, LLC

Disclosed value leader

HRTG GPE, LLC

Comparable rows

50/50

Latest evidence

31 Jul 2026

Top shareholders Insider holders Latest transactions
Public ticker
KARD on Nasdaq
Parsed ownership sources
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
HRTG GPE, LLC
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
HRTG GPE, LLC
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
31 Jul 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0002123613
Issuer location
South San Francisco, CA

Ownership snapshot

Top shareholders of Kardigan, Inc. (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
HRTG GPE, LLC
Disclosed value leader
HRTG GPE, LLC
Comparable rows
50/50
Latest evidence
31 Jul 2026
13F 13D/G 3/4/5 Lead comparable stake: 18% 13D/G row: HRTG GPE, LLC Showing 1-8 of 50 holder rows.

Quick read

HRTG GPE, LLC leads the comparable SEC ownership view at 18%.

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 HRTG GPE, LLC's linked filing trail.
Comparable ownership Top 5
HRTG GPE, LLC 18%
ARCH Venture Fund XIII, L.P. 16%
Anastasios Gianakakos 11%
FMR LLC 10%
PERCEPTIVE ADVISORS LLC 8.9%

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
HRTG GPE, LLC
13F 13D/G 3/4/5
Company · HRTG GPE, LLC ("HRTG") · 10%+ Owner
13F 13D/G 3/4/5
18%
from 13D/G
$403,471,261
16,917,034 shares
 — 30 Jun 2026
ARCH Venture Fund XIII, L.P.
3/4/5 13D/G
Director, 10%+ Owner · Paul Berns
3/4/5 13D/G
16%
from 13D/G
—
15,042,035 shares
 — 22 Jun 2026
Anastasios Gianakakos
13D/G 3/4/5
GIANAKAKOS ANASTASIOS · President & CEO, Director
13D/G 3/4/5
11%
$257,988,044
10,470,294 shares
 $0 30 Jun 2026
FMR LLC
13D/G 13F
Company
13D/G 13F
10%
$227,224,511
9,221,774 shares
 +$7,705,125 31 Jul 2026
PERCEPTIVE ADVISORS LLC
13F 13D/G 3/4/5
Company · Director
13F 13D/G 3/4/5
8.9%
from 13D/G
$195,585,788
8,200,662 shares
 — 30 Jun 2026
Edelberg Jay
13D/G 3/4/5
Chief Medical Officer
13D/G 3/4/5
5.2%
$120,196,507
4,878,105 shares
 $0 30 Jun 2026
Joseph Edelman
3/4/5
Director
3/4/5
0.02%
$414,120
20,706 shares
 — 17 Jun 2026
Perceptive Capital Solutions Holdings LP
3/4/5
Director
3/4/5
0.02%
$414,120
20,706 shares
 — 17 Jun 2026
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

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 28 Aug 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 26 reporting-owner rows connected to Kardigan, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
26
Largest Forms 3/4/5 holder
PERCEPTIVE ADVISORS LLC
Net 12M change
$0
Latest report
22 Jun 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
PERCEPTIVE ADVISORS LLC Director $414,120 Mixed 17 Jun 2026
PERCEPTIVE LIFE SCIENCES MASTER FUND LTD Director $414,120 Mixed 17 Jun 2026
Joseph Edelman Director $414,120 Mixed 17 Jun 2026
Perceptive Capital Solutions Holdings LP Director $414,120 Mixed 17 Jun 2026
HRTG GPE, LLC 10%+ Owner Mixed 22 Jun 2026
HRTG PV, L.P. 10%+ Owner Mixed 22 Jun 2026
Anastasios Gianakakos President & CEO, Director Mixed 17 Jun 2026
John B. Moriarty Jr. Chief Legal Officer Mixed 17 Jun 2026
Kevin Anthony Kelly 10%+ Owner Mixed 22 Jun 2026
Keith Bryon Johnson 10%+ Owner Mixed 22 Jun 2026
Timothy P. Walbert Director Mixed 17 Jun 2026
Kimberly J. Popovits Director Mixed 17 Jun 2026
Brianne Jahn Chief Financial Officer Mixed 17 Jun 2026
ARCH Venture Fund XIII, L.P. Director, 10%+ Owner Mixed 22 Jun 2026
Andy Pasternak Chief Strategy Officer Mixed 17 Jun 2026
Paul L. Berns Director, 10%+ Owner Mixed 22 Jun 2026
Douglas E. Giordano Director Mixed 17 Jun 2026
ARCH Venture Partners XIII, L.P. Director, 10%+ Owner Mixed 22 Jun 2026
Keith Crandell Director, 10%+ Owner Mixed 22 Jun 2026
HRTG CIF 2024, L.P. 10%+ Owner Mixed 22 Jun 2026

Recent insider transactions for Kardigan, Inc.

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
HRTG GPE, LLC KARD Common Stock Purchase 26.6% 3,125,000 14,866,868 22 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Common Stock Purchase 26.6% 3,125,000 14,866,868 22 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Common Stock Purchase 26.6% 3,125,000 14,866,868 22 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Common Stock Purchase 26.6% 3,125,000 14,866,868 22 Jun 2026 HRTG PV, L.P.
Hrtg Gpe, Llc KARD Common Stock Purchase 26.6% 3,125,000 14,866,868 22 Jun 2026 HRTG PV, L.P.
Paul L. Berns KARD Common Stock Purchase 9.06% 1,250,000 15,042,035 22 Jun 2026 By ARCH Venture Fund XIII, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Purchase 9.06% 1,250,000 15,042,035 22 Jun 2026 By: ARCH Venture Fund XIII, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Purchase 9.06% 1,250,000 15,042,035 22 Jun 2026 By: ARCH Venture Fund XIII, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Purchase 9.06% 1,250,000 15,042,035 22 Jun 2026 By: ARCH Venture Fund XIII, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Purchase 9.06% 1,250,000 15,042,035 22 Jun 2026 By: ARCH Venture Fund XIII, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Purchase 9.06% 1,250,000 15,042,035 22 Jun 2026 By: ARCH Venture Fund XIII, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Purchase 9.06% 1,250,000 15,042,035 22 Jun 2026 By: ARCH Venture Fund XIII, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Purchase 9.06% 1,250,000 15,042,035 22 Jun 2026 By: ARCH Venture Fund XIII, L.P.
PERCEPTIVE ADVISORS LLC KARD Common Stock Award 20,706 20,706 17 Jun 2026 See Footnote
Perceptive Advisors Llc KARD Common Stock Award 20,706 20,706 17 Jun 2026 See Footnote
Perceptive Advisors Llc KARD Common Stock Award 20,706 20,706 17 Jun 2026 See Footnote
Perceptive Advisors Llc KARD Common Stock Award 20,706 20,706 17 Jun 2026 See Footnote
HRTG GPE, LLC KARD Common Stock Conversion of derivative security 11,741,868 11,741,868 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Common Stock Conversion of derivative security 11,741,868 11,741,868 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Common Stock Conversion of derivative security 11,741,868 11,741,868 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Common Stock Conversion of derivative security 11,741,868 11,741,868 17 Jun 2026 HRTG PV, L.P.
Hrtg Gpe, Llc KARD Common Stock Conversion of derivative security 11,741,868 11,741,868 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Common Stock Conversion of derivative security 2,050,166 2,050,166 17 Jun 2026 HRTG CIF 2024, L.P.
HRTG GPE, LLC KARD Common Stock Conversion of derivative security 2,050,166 2,050,166 17 Jun 2026 HRTG CIF 2024, L.P.
HRTG GPE, LLC KARD Common Stock Conversion of derivative security 2,050,166 2,050,166 17 Jun 2026 HRTG CIF 2024, L.P.
HRTG GPE, LLC KARD Common Stock Conversion of derivative security 2,050,166 2,050,166 17 Jun 2026 HRTG CIF 2024, L.P.
Hrtg Gpe, Llc KARD Common Stock Conversion of derivative security 2,050,166 2,050,166 17 Jun 2026 HRTG CIF 2024, L.P.
HRTG GPE, LLC KARD Series B-1 Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,474,368 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series B-1 Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,474,368 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series B-1 Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,474,368 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series B-1 Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,474,368 0 17 Jun 2026 HRTG PV, L.P.
Hrtg Gpe, Llc KARD Series B-1 Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,474,368 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series B Redeemable Convertible Preferred Stock Conversion of derivative security -100% -2,036,033 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series B Redeemable Convertible Preferred Stock Conversion of derivative security -100% -2,036,033 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series B Redeemable Convertible Preferred Stock Conversion of derivative security -100% -2,036,033 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series B Redeemable Convertible Preferred Stock Conversion of derivative security -100% -2,036,033 0 17 Jun 2026 HRTG PV, L.P.
Hrtg Gpe, Llc KARD Series B Redeemable Convertible Preferred Stock Conversion of derivative security -100% -2,036,033 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -3,861,440 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -3,861,440 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -3,861,440 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -3,861,440 0 17 Jun 2026 HRTG PV, L.P.
Hrtg Gpe, Llc KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -3,861,440 0 17 Jun 2026 HRTG PV, L.P.
HRTG GPE, LLC KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,287,146 0 17 Jun 2026 HRTG CIF 2024, L.P.
HRTG GPE, LLC KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,287,146 0 17 Jun 2026 HRTG CIF 2024, L.P.
HRTG GPE, LLC KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,287,146 0 17 Jun 2026 HRTG CIF 2024, L.P.
HRTG GPE, LLC KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,287,146 0 17 Jun 2026 HRTG CIF 2024, L.P.
Hrtg Gpe, Llc KARD Series A Redeemable Convertible Preferred Stock Conversion of derivative security -100% -1,287,146 0 17 Jun 2026 HRTG CIF 2024, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Conversion of derivative security 13,792,035 13,792,035 17 Jun 2026 By: ARCH Venture Fund XIII, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Conversion of derivative security 13,792,035 13,792,035 17 Jun 2026 By: ARCH Venture Fund XIII, L.P.
ARCH Venture Partners XIII, LLC KARD Common Stock Conversion of derivative security 13,792,035 13,792,035 17 Jun 2026 By: ARCH Venture Fund XIII, L.P.
* marks a reported price that did not pass the local price check.
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