Comparable stake leader
Tianqi Lithium HK Co., Ltd.
SEC ownership of SES AI Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001819142.
Disclosed value leader
Tianqi Lithium HK Co., Ltd.
Comparable rows
50/50
Latest evidence
30 Jun 2026
- Public ticker
- SES, SES-WT on NYSE
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Tianqi Lithium HK Co., Ltd.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Tianqi Lithium HK Co., Ltd.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001819142
- Issuer location
- Woburn, MA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of SES AI Corp (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
Tianqi Lithium HK Co., Ltd.
Disclosed value leader
Tianqi Lithium HK Co., Ltd.
Comparable rows
50/50
Latest evidence
30 Jun 2026
13D/G
3/4/5
13F
Lead comparable stake: 7.8%
13D/G row: Tianqi Lithium HK Co., Ltd.
Showing 1-8 of 50 holder rows.
Quick read
Tianqi Lithium HK Co., Ltd. leads the comparable SEC ownership view at 7.8%.
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 Tianqi Lithium HK Co., Ltd.'s linked filing trail.
Comparable ownership
Top 5
Tianqi Lithium HK Co., Ltd.
7.8%
BlackRock, Inc.
5.8%
SK INC.
4.9%
General Motors Holdings LLC
1.2%
Temasek Holdings (Private) Ltd
1%
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 |
|---|---|---|---|---|---|
| Tianqi Lithium HK Co., Ltd. |
13D/G
3/4/5
10%+ Owner
|
7.8%
|
$44,860,295
24,922,386 shares
|
$0 | 31 Dec 2025 |
| BlackRock, Inc. |
13F
13D/G
Company
|
5.8%
from 13D/G
|
$18,192,329
18,946,396 shares
|
— | 30 Jun 2026 |
| SK INC. |
13D/G
3/4/5
10%+ Owner
|
4.9%
|
$15,269,713
15,741,972 shares
|
$0 | 31 Dec 2024 |
| General Motors Holdings LLC |
13D/G
3/4/5
13F
10%+ Owner · Company
|
1.2%
|
$3,804,292
3,921,950 shares
|
$0 | 10 Jan 2025 |
| Temasek Holdings (Private) Ltd |
13D/G
3/4/5
13F
Temasek Holdings (Private) Limited · 10%+ Owner · Company
|
1%
|
$5,278,389
3,160,712 shares
|
$0 | 30 Sep 2025 |
| Qichao Hu |
3/4/5
CEO & CHAIRMAN, Director, 10%+ Owner
|
1.7%
|
$5,242,521
5,449,607 shares
|
— | 18 May 2026 |
| Jing Nealis |
3/4/5
CHIEF FINANCIAL OFFICER
|
0.71%
|
$2,218,317
2,305,943 shares
|
— | 14 Apr 2026 |
| Kyle Pilkington |
3/4/5
CHIEF LEGAL OFFICER
|
0.32%
|
$1,228,564
1,023,548 shares
|
-$60,008 | 22 May 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
Net insider flow leans to selling over the last 12 months. Net value: -$1,167,828.
Buys
$0
Insiders: 0
Sells
$1,167,828
Insiders: 2
Net
-$1,167,828
Shares: -550,000
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 550,000
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 50,000 | $0 | $60,008 | -$60,008 |
| 6-9 | 0 | 350,000 | $0 | $822,595 | -$822,595 |
| 9-12 | 0 | 150,000 | $0 | $285,225 | -$285,225 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 25 reporting-owner rows connected to SES AI Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
25
Largest Forms 3/4/5 holder
SK INC.
Net 12M change
-$1,167,828
Latest report
06 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| SK INC. | 10%+ Owner | $13,374,148 | Filing P/S | 17 Dec 2024 | ||
| Qichao Hu | CEO & CHAIRMAN, Director, 10%+ Owner | $5,242,521 | Mixed | 18 May 2026 | ||
| Jing Nealis | Chief Financial Officer | $2,218,317 | Mixed | 14 Apr 2026 | ||
| General Motors Holdings LLC | 10%+ Owner | $1,968,724 | Filing P/S | 15 Nov 2024 | ||
| Temasek Holdings (Private) Ltd | 10%+ Owner | $1,907,159 | Filing P/S | 19 Sep 2024 | ||
| Kyle Pilkington | Chief Legal Officer | $1,228,564 | -$60,008 | -4.7% | Filing P/S | 22 May 2026 |
| Hong Gan | Chief Science Officer | $992,376 | -$1,107,820 | -53% | Mixed | 14 Apr 2026 |
| Yongkyu Son | Chief Technology Officer | $805,730 | Mixed | 15 Aug 2023 | ||
| Kang Xu | Chief Technology Officer | $771,172 | Mixed | 18 May 2026 | ||
| Eric Luo | Director | $505,043 | Mixed | 18 May 2026 | ||
| Jiong Ma | Director | $505,043 | Mixed | 18 May 2026 | ||
| Andrew J. Boyd | Director | $421,249 | Mixed | 18 May 2026 | ||
| Robert M. Friedland | Director | $377,456 | Mixed | 18 Apr 2022 | ||
| Brian M. Krzanich | Director | $349,728 | Mixed | 06 Feb 2024 | ||
| Joanne Ban | Chief Legal & Corp. Officer | $329,286 | Mixed | 13 Jun 2022 | ||
| Yi Ray Liu | Chief Financial Officer | $319,247 | Mixed | 18 May 2026 | ||
| Gang Li | Chief Manufacturing Officer | $219,837 | Mixed | 17 Apr 2025 | ||
| Jangwook Choi | Director | $168,619 | Mixed | 28 Mar 2025 | ||
| Michael Noonen | Director | $168,619 | Mixed | 28 Mar 2025 | ||
| Rohit Makharia | Pres. & Chief Strategy Officer | $144,352 | Mixed | 14 Dec 2023 |
Recent insider transactions for SES AI Corp
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Kyle Pilkington | SES | Class A Common Stock | Sale | -2.38% | $30,008 | $1.20 | -25,000 | 1,023,548 | 22 May 2026 | Direct |
| Yi Ray Liu | SES | Class A Common Stock | Award | 331,858 | 331,858 | 18 May 2026 | Direct | |||
| Kyle Pilkington | SES | Class A Common Stock | Award | 51% | 353,982 | 1,048,548 | 18 May 2026 | Direct | ||
| Kang Xu | SES | Class A Common Stock | Award | 38.1% | 221,239 | 801,635 | 18 May 2026 | Direct | ||
| Qichao Hu | SES | Class A Common Stock | Award | 38.1% | 1,504,425 | 5,449,607 | 18 May 2026 | Direct | ||
| Andrew J. Boyd | SES | Class A Common Stock | Award | 47.8% | 141,593 | 437,889 | 18 May 2026 | Direct | ||
| Eric Luo | SES | Class A Common Stock | Award | 36.9% | 141,593 | 524,993 | 18 May 2026 | Direct | ||
| Jiong Ma | SES | Class A Common Stock | Award | 36.9% | 141,593 | 524,993 | 18 May 2026 | Direct | ||
| Kyle Pilkington | SES | Class A Common Stock | Tax liability | -3.5% | -25,185 | 694,566 | 14 Apr 2026 | Direct | ||
| Jing Nealis | SES | Class A Common Stock | Tax liability | -1.54% | -36,145 | 2,305,943 | 14 Apr 2026 | Direct | ||
| Hong Gan | SES | Class A Common Stock | Tax liability | -3.02% | -32,138 | 1,031,576 | 14 Apr 2026 | Direct | ||
| Qichao Hu | SES | Class A Common Stock | Tax liability | -3.27% | -133,303 | 3,945,182 | 14 Apr 2026 | Direct | ||
| Kang Xu | SES | Class A Common Stock | Tax liability | -6.39% | -39,593 | 580,396 | 27 Mar 2026 | Direct | ||
| Kyle Pilkington | SES | Class A Common Stock | Tax liability | -7.75% | -60,452 | 719,751 | 27 Mar 2026 | Direct | ||
| Jing Nealis | SES | Class A Common Stock | Tax liability | -6.54% | -163,968 | 2,342,088 | 27 Mar 2026 | Direct | ||
| Hong Gan | SES | Class A Common Stock | Tax liability | -6.56% | -74,682 | 1,063,714 | 27 Mar 2026 | Direct | ||
| Qichao Hu | SES | Class A Common Stock | Tax liability | -7.07% | -310,446 | 4,078,485 | 27 Mar 2026 | Direct | ||
| Kyle Pilkington | SES | Class A Common Stock | Sale | -3.1% | $30,000 | $1.20 | -25,000 | 780,203 | 09 Mar 2026 | Direct |
| Kyle Pilkington | SES | Class A Common Stock | Tax liability | -6.51% | -56,074 | 805,203 | 09 Feb 2026 | Direct | ||
| Jing Nealis | SES | Class A Common Stock | Tax liability | -4.21% | -110,231 | 2,506,056 | 09 Feb 2026 | Direct | ||
| Hong Gan | SES | Class A Common Stock | Tax liability | -5.27% | -63,290 | 1,138,396 | 09 Feb 2026 | Direct | ||
| Qichao Hu | SES | Class A Common Stock | Tax liability | -5.75% | -267,934 | 4,388,931 | 09 Feb 2026 | Direct | ||
| Kang Xu | SES | Class A Common Stock | Tax liability | -5.35% | -35,063 | 619,989 | 06 Feb 2026 | Direct | ||
| Hong Gan | SES | Class A Common Stock | Sale | -7.39% | $250,320 | $2.50 | -100,000 | 1,253,286 | 23 Jan 2026 | Direct |
| Hong Gan | SES | Class A Common Stock | Options Exercise | 7.98% | 100,000 | 1,353,286 | 23 Jan 2026 | Direct | ||
| Hong Gan | SES | Stock Option (Right to Buy) | Options Exercise | -9.71% | -100,000 | 929,832 | 23 Jan 2026 | Direct | ||
| Hong Gan | SES | Class A Common Stock | Sale | -10.7% | $374,385 | $2.50 | -150,000 | 1,253,286 | 22 Jan 2026 | Direct |
| Hong Gan | SES | Class A Common Stock | Options Exercise | 12% | 150,000 | 1,403,286 | 22 Jan 2026 | Direct | ||
| Hong Gan | SES | Stock Option (Right to Buy) | Options Exercise | -12.7% | -150,000 | 1,029,832 | 22 Jan 2026 | Direct | ||
| Hong Gan | SES | Class A Common Stock | Sale | -7.39% | $197,890 | $1.98 | -100,000 | 1,253,286 | 15 Dec 2025 | Direct |
| Hong Gan | SES | Class A Common Stock | Options Exercise | 7.98% | 100,000 | 1,353,286 | 15 Dec 2025 | Direct | ||
| Hong Gan | SES | Stock Option (Right to Buy) | Options Exercise | -100% | -100,000 | 0 | 15 Dec 2025 | Direct | ||
| Hong Gan | SES | Class A Common Stock | Sale | -10.7% | $285,225 | $1.90 | -150,000 | 1,253,286 | 17 Nov 2025 | Direct |
| Hong Gan | SES | Class A Common Stock | Options Exercise | 12% | 150,000 | 1,403,286 | 17 Nov 2025 | Direct | ||
| Hong Gan | SES | Stock Option (Right to Buy) | Options Exercise | -61.7% | -150,000 | 93,277 | 17 Nov 2025 | Direct | ||
| Andrew J. Boyd | SES | Class A Common Stock | Award | 296,296 | 296,296 | 08 Sep 2025 | Direct | |||
| Kang Xu | SES | Class A Common Stock | Tax liability | -5.65% | -39,238 | 655,052 | 03 Sep 2025 | Direct |
* marks a reported price that did not pass the local price check.