SEC Form 4
Grindr Inc. (GRND) insider trading
In the 12 months to Oct 26, 2026, 6 GRND insiders reported open-market sales of $93.5M across 38 filings; one director bought $9.3M.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $93.5M
- 38 filings · 6 insiders
- Open-market purchases
- $9.3M
- 4 filings · George Raymond Zage III, Director
- Pre-arranged sales (10b5-1)
- 27 of 38
- $26.7M of $93.5M sold (29%)
Who traded GRND, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
GRND daily close from Oct 27, 2025 to Oct 26, 2026, between $9.85 and $17.94, last $13.23. 38 sale and 4 purchase filings by 6 insiders, marked at their filing dates. James Fu Bin Lu, 10% owner: sold $66.8M across 11 filings, first filed Nov 13, 2025, last Feb 6, 2026. George Raymond Zage III, Director: sold $21.8M and bought $9.3M across 7 filings, first filed Dec 2, 2025, last Oct 20, 2026. Austin J. Balance, Chief Product Officer: sold $2.4M across 3 filings, first filed Nov 13, 2025, last Sep 2, 2026. Zachary Katz, GC and Head of Global Affairs → CLO and Head of Global Affairs: sold $2.3M across 11 filings, first filed Nov 5, 2025, last Oct 16, 2026. Nathan Richardson, Director: sold $157.7K across 9 filings, first filed Nov 18, 2025, last Jun 3, 2026. Daniel Brooks Baer, Director: sold $54.8K across 1 filing, first filed Aug 21, 2026, last Aug 21, 2026.
Largest mark · tap a row for others
James Fu Bin Lu · 10% owner
Filing 1 of 3 within a week · $21,889,123 total
Sale $15,667,020
1,056,271 shares at $14.83 avg
Filed Nov 13, 2025 · traded Nov 11
Close on filing date $14.38
James Fu Bin Lu · 10% owner
10% owner
$66.8M soldGeorge Raymond Zage III · Director
Director
$21.8M sold$9.3M boughtAustin J. Balance · Chief Product Officer
Chief Product Officer
$2.4M soldZachary Katz · GC and Head of Global Affairs → CLO and Head of Global Affairs
GC and Head of Global Affairs → CLO and Head of Global Affairs
$2.3M soldNathan Richardson · Director
Director
$157.7K soldDaniel Brooks Baer · Director
Director
$54.8K soldOpen-market trades
42 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| James Fu Bin Lu | 10% owner | $66.8M | — | 11 | — | |
| George Raymond Zage III | Director | $21.8M | $9.3M | 7 | 100% of sales | |
| Austin J. Balance | Chief Product Officer | $2.4M | — | 3 | 100% of sales | |
| Zachary Katz | GC and Head of Global Affairs → CLO and Head of Global Affairs | $2.3M | — | 11 | 100% of sales | |
| Nathan Richardson | Director | $157.7K | — | 9 | 100% of sales | |
| Daniel Brooks Baer | Director | $54.8K | — | 1 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | George Raymond Zage III Director | SalePre-arranged (10b5-1) | 500,000 | $14.12 | $7.1M | 6,627,743 | |
traded | Zachary Katz CLO and Head of Global Affairs | SalePre-arranged (10b5-1) | 15,227 | $15.23 | $231.9K | 618,000 | |
traded | George Raymond Zage III Director | SalePre-arranged (10b5-1) | 500,000 | $13.87 | $6.9M | 7,127,743 | |
traded | George Raymond Zage III Director | SalePre-arranged (10b5-1) | 500,000 | $15.55 | $7.8M | 7,627,743 | |
traded | Zachary Katz CLO and Head of Global Affairs | SalePre-arranged (10b5-1) | 15,227 | $15.57 | $237.1K | 633,227 | |
traded | Austin J. Balance Chief Product Officer | SalePre-arranged (10b5-1) | 89,638 | $15.46 | $1.4M | 850,056 | |
traded | Daniel Brooks Baer Director | SalePre-arranged (10b5-1) | 3,500 | $15.65 | $54.8K | 47,912 | |
traded | Zachary Katz CLO and Head of Global Affairs | SalePre-arranged (10b5-1) | 10,172 | $15.83 | $161.0K | 680,000 | |
traded | Zachary Katz CLO and Head of Global Affairs | SalePre-arranged (10b5-1) | 12,979 | $17.89 | $232.2K | 690,172 | |
traded | Zachary Katz CLO and Head of Global Affairs | SalePre-arranged (10b5-1) | 10,172 | $15.95 | $162.2K | 703,151 | |
traded | Zachary Katz CLO and Head of Global Affairs | SalePre-arranged (10b5-1) | 12,800 | $16.28 | $208.4K | 713,323 | |
traded | Zachary Katz CLO and Head of Global Affairs | SalePre-arranged (10b5-1) | 12,799 | $14.65 | $187.5K | 726,123 | |
traded | Zachary Katz CLO and Head of Global Affairs | SalePre-arranged (10b5-1) | 10,172 | $13.29 | $135.2K | 738,922 | |
traded | Nathan Richardson Director | SalePre-arranged (10b5-1) | 1,500 | $12.59 | $18.9K | 6,833 | |
traded | Austin J. Balance Chief Product Officer | SalePre-arranged (10b5-1) | 31,615 | $15.00 | $474.3K | 913,390 | |
traded | Nathan Richardson Director | SalePre-arranged (10b5-1) | 1,500 | $13.51 | $20.3K | 8,333 | |
traded | Nathan Richardson Director | SalePre-arranged (10b5-1) | 1,500 | $12.17 | $18.3K | 9,833 | |
traded | Nathan Richardson Director | SalePre-arranged (10b5-1) | 1,500 | $11.27 | $16.9K | 11,333 | |
traded | James Fu Bin Lu 10% owner | Sale | 1,450,000 | $10.07 | $14.6M | 18,432,101 | |
traded | Nathan Richardson Director | SalePre-arranged (10b5-1) | 1,500 | $11.18 | $16.8K | 12,833 | |
traded | James Fu Bin Lu 10% owner | Sale | 612,766 | $11.03 | $6.8M | 19,882,101 | |
traded | James Fu Bin Lu 10% owner | Sale | 639,000 | $11.88 | $7.6M | 20,494,867 | |
traded | James Fu Bin Lu 10% owner | Sale | 600,000 | $12.01 | $7.2M | 21,133,867 | |
traded | James Fu Bin Lu 10% owner | Sale | 415,307 | $13.22 | $5.5M | 4,455 | |
traded | James Fu Bin Lu 10% owner | Sale | 92,071 | $13.53 | $1.2M | 419,762 | |
traded | Nathan Richardson Director | SalePre-arranged (10b5-1) | 1,500 | $13.66 | $20.5K | 14,333 | |
traded | James Fu Bin Lu 10% owner | Sale | 3,628 | $13.50 | $49.0K | 511,833 | |
traded | James Fu Bin Lu 10% owner | Sale | 143,994 | $13.71 | $2.0M | 515,461 | |
traded | George Raymond Zage III Director | Purchase | 50,000 | $13.51 | $675.5K | 8,113,283 | |
traded | George Raymond Zage III Director | Purchase | 155,000 | $13.49 | $2.1M | Multiple accounts | |
traded | George Raymond Zage III Director | Purchase | 200,000 | $13.26 | $2.7M | Multiple accounts | |
traded | Nathan Richardson Director | SalePre-arranged (10b5-1) | 1,500 | $12.70 | $19.1K | 15,833 | |
traded | George Raymond Zage III Director | Purchase | 300,000 | $12.90 | $3.9M | Multiple accounts | |
traded | Zachary Katz GC and Head of Global Affairs | SalePre-arranged (10b5-1) | 29,383 | $12.52 | $367.9K | 461,137 | |
traded | Nathan Richardson Director | SalePre-arranged (10b5-1) | 1,500 | $13.55 | $20.3K | 17,333 | |
traded | James Fu Bin Lu 10% owner | Sale | 75,748 | $13.65 | $1.0M | 22,388,867 | |
traded | Nathan Richardson Director | SalePre-arranged (10b5-1) | 485 | $14.03 | $6.8K | 18,833 | |
traded | James Fu Bin Lu 10% owner | Sale | 367,981 | $14.10 | $5.2M | 22,464,615 | |
traded | Zachary Katz GC and Head of Global Affairs | SalePre-arranged (10b5-1) | 13,781 | $14.39 | $198.3K | 490,520 | |
traded | James Fu Bin Lu 10% owner | Sale | 1,056,271 | $14.83 | $15.7M | 22,832,596 | |
traded | Austin J. Balance Chief Product Officer | SalePre-arranged (10b5-1) | 34,160 | $15.08 | $515.2K | 542,089 | |
traded | Zachary Katz GC and Head of Global Affairs | SalePre-arranged (10b5-1) | 15,601 | $13.73 | $214.2K | 532,738 |
GET /stocks/filings/vX/form-4?tickers=GRND&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"GRND"
],
"issuer_cik": "0001820144",
"owner_cik": "0001833678",
"accession_number": "0001833678-26-000007",
"form_type": "4",
"filing_date": "2026-10-20",
"period_of_report": "2026-10-16",
"issuer_name": "Grindr Inc.",
"issuer_trading_symbol": "GRND",
"owner_name": "Zage George Raymond III",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": true,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-16",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 350000,
"transaction_price_per_share": 14.228,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 6777743,
"transaction_value": 4979800,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan, adopted June 17, 2026."
}
]
},
{
"tickers": [
"GRND"
],
"issuer_cik": "0001820144",
"owner_cik": "0001833678",
"accession_number": "0001833678-26-000007",
"form_type": "4",
"filing_date": "2026-10-20",
"period_of_report": "2026-10-16",
"issuer_name": "Grindr Inc.",
"issuer_trading_symbol": "GRND",
"owner_name": "Zage George Raymond III",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": true,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-19",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 150000,
"transaction_price_per_share": 13.87,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 6627743,
"transaction_value": 2080499.9999999998,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan, adopted June 17, 2026."
},
{
"id": "F2",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.575 to $14.28, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 39 records
- Option exercises3 records
- Tax withholding10 records
- Grants and awards24 records
- Gifts2 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has Grindr Inc.'s CEO sold stock?
No. George Arison (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is GRND’s insider data?
These are GRND Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
Build with AI
Track GRND insider trades with your agent
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for GRND every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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