SEC Form 4
ADMA Biologics, Inc. (ADMA) insider trading
In the 12 months to Oct 23, 2026, one ADMA insider reported open-market sales of $1.2M across 5 filings; 2 insiders bought $468.3K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $1.2M
- 5 filings · 1 insider
- Open-market purchases
- $468.3K
- 4 filings
- Pre-arranged sales (10b5-1)
- 5 of 5
- All $1.2M sold was pre-arranged
Who traded ADMA, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
ADMA daily close from Oct 23, 2025 to Oct 22, 2026, between $7.60 and $20.38, last $10.95. 5 sale and 4 purchase filings by 3 insiders, marked at their filing dates. Adam S. Grossman, President and CEO: sold $1.2M across 5 filings, first filed Oct 24, 2025, last Mar 17, 2026. Jerrold B. Grossman, Director: bought $250.9K across 3 filings, first filed May 12, 2026, last May 28, 2026. Steve Elms, Director: bought $217.4K across 1 filing, first filed Mar 9, 2026, last Mar 9, 2026.
Largest mark · tap a row for others
Adam S. Grossman · President and CEO
Sale $296,850
15,000 shares at $19.79 avg
Filed Dec 16, 2025 · traded Dec 15
Pre-arranged (10b5-1) · close on filing date $19.17
Adam S. Grossman · President and CEO
President and CEO
$1.2M soldJerrold B. Grossman · Director
Director
$250.9K boughtSteve Elms · Director
Director
$217.4K boughtHas ADMA Biologics, Inc.'s CEO sold stock?
Yes. Adam S. Grossman (CEO) sold 75,000 shares ($1.2M) between Oct 2025 and Mar 2026, all under a pre-arranged 10b5-1 plan.
Open-market trades
9 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Adam S. Grossman | President and CEO | $1.2M | — | 5 | 100% of sales | |
| Jerrold B. Grossman | Director | — | $250.9K | 3 | — | |
| Steve Elms | Director | — | $217.4K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Jerrold B. Grossman Director | Purchase | 6,400 | $7.91 | $50.6K | 520,284 | |
traded | Jerrold B. Grossman Director | Purchase | 12,500 | $8.01 | $100.1K | 513,884 | |
traded | Jerrold B. Grossman Director | Purchase | 12,500 | $8.01 | $100.1K | 501,384 | |
traded | Adam S. Grossman President and CEO | SalePre-arranged (10b5-1) | 15,000 | $15.16 | $227.4K | 2,118,777 | |
traded | Steve Elms Director | Purchase | 14,000 | $15.53 | $217.4K | 2,045,730 | |
traded | Adam S. Grossman President and CEO | SalePre-arranged (10b5-1) | 15,000 | $16.08 | $241.2K | 2,290,379 | |
traded | Adam S. Grossman President and CEO | SalePre-arranged (10b5-1) | 15,000 | $19.79 | $296.9K | 2,013,850 | |
traded | Adam S. Grossman President and CEO | SalePre-arranged (10b5-1) | 15,000 | $16.00 | $240.0K | 2,019,850 | |
traded | Adam S. Grossman President and CEO | SalePre-arranged (10b5-1) | 15,000 | $16.00 | $240.0K | 2,025,850 |
GET /stocks/filings/vX/form-4?tickers=ADMA&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"ADMA"
],
"issuer_cik": "0001368514",
"owner_cik": "0001542519",
"accession_number": "0001140361-26-023127",
"form_type": "4",
"filing_date": "2026-05-28",
"period_of_report": "2026-05-27",
"issuer_name": "ADMA BIOLOGICS, INC.",
"issuer_trading_symbol": "ADMA",
"owner_name": "Grossman Jerrold B",
"is_director": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-05-27",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 6400,
"transaction_price_per_share": 7.91,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 520284,
"transaction_value": 50624,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Represents an open market purchase in a single transaction."
},
{
"id": "F2",
"description": "Includes, as of the transaction date, (i) 10,690 RSUs granted on February 9, 2026, half of which will vest on August 9, 2026, and the other half of which will vest on February 9, 2027, subject to the Reporting Person's continued service as of each such vesting date; and (ii) 509,594 shares of common stock owned by the Reporting Person."
}
]
},
{
"tickers": [
"ADMA"
],
"issuer_cik": "0001368514",
"owner_cik": "0001542519",
"accession_number": "0001140361-26-021150",
"form_type": "4",
"filing_date": "2026-05-14",
"period_of_report": "2026-05-12",
"issuer_name": "ADMA BIOLOGICS, INC.",
"issuer_trading_symbol": "ADMA",
"owner_name": "Grossman Jerrold B",
"is_director": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-05-12",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 12500,
"transaction_price_per_share": 8.01,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 513884,
"transaction_value": 100125,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Represents an open market purchase in a single transaction."
},
{
"id": "F2",
"description": "Includes, as of the transaction date, (i) 10,690 RSUs granted on February 9, 2026, half of which will vest on August 9, 2026, and the other half of which will vest on February 9, 2027, subject to the Reporting Person's continued service as of each such vesting date; and (ii) 503,194 shares of common stock owned by the Reporting Person."
}
]
}
]
}
// 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 exercises11 records
- Tax withholding10 records
- Tax withholding (sold to cover)6 records
- Grants and awards9 records
- Gifts2 records
- Other1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
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 ADMA 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.
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.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.