Comparable stake leader
Jonathan G. Drachman
SEC ownership of Calithera Biosciences, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001496671.
Disclosed value leader
Jonathan G. Drachman
Comparable rows
0/15
Latest evidence
23 Jan 2023
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Jonathan G. Drachman
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
23 Jan 2023
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001496671
- Issuer location
- South San Francisco, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Calithera Biosciences, 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
Jonathan G. Drachman
Disclosed value leader
Jonathan G. Drachman
Comparable rows
0/15
Latest evidence
23 Jan 2023
3/4/5
Highest disclosed value: $77,160
15 rows are not safely comparable across share classes.
Showing 1-8 of 15 holder rows.
Quick read
Jonathan G. Drachman has the largest disclosed position value at $77.2K.
0 of 15 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 Jonathan G. Drachman's linked filing trail.
Disclosed position value
Top 5
Jonathan G. Drachman
$77.2K
Francesco Parlati
$54.4K
Christopher J. Molineaux
$14.6K
Susan Molineaux
$14.6K
Eric Sjogren
$3.3K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Jonathan G. Drachman |
3/4/5
Director
|
—
class O/S missing
|
$77,160
200,000 shares
|
— | 10 Nov 2021 |
| Francesco Parlati |
3/4/5
SR. VP, RESEARCH
|
—
mixed-class rows
|
$54,397
305,998 shares
mixed-class rows
|
— | 25 Jan 2022 |
| Christopher J. Molineaux |
3/4/5
SR. VP, DEVELOPMENT
|
—
class O/S missing
|
$14,609
37,866 shares
|
— | 23 Jan 2023 |
| Susan Molineaux |
3/4/5
PRESIDENT & CEO, Director
|
—
class O/S missing
|
$14,609
37,866 shares
|
— | 23 Jan 2023 |
| Eric Sjogren |
3/4/5
SR. VP, DRUG DISCOVERY
|
—
class O/S missing
|
$3,267
8,467 shares
|
— | 23 Jan 2023 |
| Stephanie Wong |
3/4/5
CHIEF FINANCIAL OFFICER & SECRETARY
|
—
class O/S missing
|
$2,565
6,647 shares
|
— | 23 Jan 2023 |
| Emil Kuriakose |
3/4/5
CHIEF MEDICAL OFFICER
|
—
class O/S missing
|
$1,365
3,539 shares
|
— | 23 Jan 2023 |
| Sumita Ray |
3/4/5
SVP, GENERAL COUNSEL & CHIEF COMPLIANCE OFFICER
|
—
class O/S missing
|
—
165,000 shares
|
— | 25 Jan 2022 |
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 13 Sep 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 1-17 of 17 reporting-owner rows connected to Calithera Biosciences, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
17
Largest Forms 3/4/5 holder
Jonathan G. Drachman
Net 12M change
$0
Latest report
17 Apr 2023
Recent insider transactions for Calithera Biosciences, 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.