Why did PDS Biotechnology (PDSB) stock go up? No company news found
PDS Biotechnology closed up about 35% on 9 October 2026 with no company release or SEC filing that day. What we checked, and the September private placement and warrants behind the share count.
The short version
- No company news or SEC filing found for 9 October. The last release (6 October) announced a 15 October investor event.
- The move doesn't change PDS's finances. It had $5.6 million of cash at 30 June and a going-concern warning, and in September it raised $11.3 million gross.
- The September deal left warrants for 20.0 million shares at $0.22 and pre-funded warrants for 23.5 million shares. A $50 million ATM is also on file.
- Move, October 9, 2026
- ▲ +35.3%
- $1.02 → $1.38 close
- Volume
- 16.1M shares
- Catalyst
- No company news found
- Market value at close
- $112.96M
- 81.9M shares (as of 2026-09-14)
- Cash, last filing
- $5.60M
- 6 months to Jun 2026 · ~5 months at recent burn (estimate)
- Listing
- Nasdaq notice
- 8-K Item 3.01, 2026-07-31
Rankings #1 for September gains#4 for September +20% days#10 for October +20% days (to date)
Facts as of . Small caps move fast; check the latest filings.
What happened
PDS Biotechnology closed Friday at about $1.38, up roughly 35% from Thursday’s $1.02. About 16 million shares traded.
It was the stock’s second large gain that week. On Monday 5 October it closed up about 60%. On 11 September, before its private placement closed, it closed at about $0.29.
The likely catalyst
We found no company news for 9 October. PDS issued no press release that day, and EDGAR shows no PDS filing between 6 October and the close. Press releases.
The latest release, on 6 October, announced a virtual event on 15 October. A National Cancer Institute investigator will discuss Phase 2 results for PDS0301, an IL-12 immunocytokine, in colorectal cancer that has spread to the liver. It is an event announcement, not new data. 8-K.
The same day, several vaccine developers rose after a report on a planned federal effort to speed up cancer vaccine research. Motley Fool. We found no source linking PDS to that report.
So the record shows a move with no company-specific cause.
Money and dilution check
At 30 June, PDS had $5.6 million of cash and a stockholders’ deficit of $3.6 million. It used $7.2 million in operations in the first half, has no revenue, and said there is substantial doubt about its ability to continue as a going concern. In August it cut about 36% of its workforce. 10-Q, 8-K.
Since then:
- Private placement, closed 14 September. It raised $11.3 million gross. PDS issued 16.5 million shares, pre-funded warrants for 23.5 million shares and one-year common warrants for 20.0 million shares at $0.22. Nant Capital, controlled by Dr. Patrick Soon-Shiong, put in about $10 million, and he joined the board. 8-K.
- Milestone tranche. Nant and AB Group must buy a further $11 million of stock at $0.22 once PDS submits a registrational Phase 3 protocol for PDS0301 to the FDA. That would be about 50 million shares. 8-K.
- Yorkville note repaid. On 14 September, PDS paid about $4.6 million to redeem its 10% note held by YA II PN, Ltd. A Yorkville warrant for 2.16 million shares at $1.1824 remains.
- ATM program. PDS can sell up to $50 million of stock through Yorkville Securities, LLC and B. Riley Securities, Inc. It sold $0.1 million by 30 June. The placement’s lock-up still allows ATM sales. The $50 million is a ceiling, not cash raised, and the prospectus says baby shelf limits apply while public float stays below $75 million. 424B5.
The latest filed share count is 81,856,307 at 14 September, from Nant’s Schedule 13D. The company’s own last figure was 55,971,338 at 6 August. Sales after 30 June won’t be known until the next 10-Q.
At $1.38, the $0.22 warrants and milestone shares are priced far below the market.
PDS also has a Nasdaq bid-price deficiency and has until 26 January 2027 to regain compliance. 8-K. See the delisting process.
How we measured: regular-session close to close, from Alpaca Markets (SIP) daily bars, split-adjusted. Volume is compared with the average of the 30 trading sessions before the move.
Does $PDSB spike often?
In the last 250 sessions, $PDSB closed up 20% or more on 9 days.
| Day | Close change | Volume | 5 sessions later |
|---|---|---|---|
| Apr 6, 2026 | +22.9% | 1.8M | +39.7% |
| Apr 15, 2026 | +28.3% | 3.8M | −5.1% |
| May 13, 2026 | +20.9% | 1.4M | −22.6% |
| Sep 8, 2026 | +36.4% | 491M | +95.1% |
| Sep 14, 2026 | +35.3% | 80.5M | +110.9% |
| Sep 15, 2026 | +46.7% | 372M | +55.5% |
| Sep 16, 2026 | +69.2% | 196M | −16.8% |
| Oct 5, 2026 | +60.3% | 78.6M | +26.7% |
| Oct 9, 2026 (this move) | +35.3% | 16.1M | −18.1% |
Dilution math
At-the-market program ceiling (Yorkville Securities, LLC and B. Riley Securities, Inc.): up to $50.00M.
At the October 9, 2026 close of $1.38, that is about 36.2M new shares, or 44% of the 81.9M shares outstanding.
What to watch
- 2026-10-14: The private placement requires a resale registration statement within 30 calendar days of the 14 September closing. None had been filed by 9 October. [source]
- 2026-10-15: Virtual investor event on PDS0301 Phase 2 results in colorectal cancer with liver metastases, 8:00 a.m. ET. [source]
- 2027-01-26: Nasdaq bid-price deadline. The stock needs a closing bid of $1.00 or more for at least ten consecutive business days. [source]
- The September-quarter 10-Q, due in mid-November, should show any ATM sales after 30 June and the current share count.
- The $11 million milestone closing at $0.22 a share, due within five business days after PDS submits a registrational Phase 3 protocol for PDS0301 to the FDA. No date is given.
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Sources
- Alpaca Markets (SIP), daily bars, split-adjusted (close, prior close, volume)
- PDS Biotech press releases, 2026
- 8-K and release: 15 October KOL event on PDS0301 · 8-K · filed 2026-10-06
- 8-K: private placement led by Nant Capital (terms, warrants, milestone closing, registration rights) · 8-K · filed 2026-09-08
- 8-K: initial closing, Yorkville note redeemed, Nant directors appointed · 8-K · filed 2026-09-14
- Schedule 13D, Nant Capital, LLC and Patrick Soon-Shiong · SCHEDULE 13D · filed 2026-09-21
- 10-Q for the quarter ended 30 June 2026: cash, going concern, ATM sales, share count · 10-Q · filed 2026-08-13
- 8-K: Yorkville note and warrant closing; $50 million ATM with Yorkville Securities and B. Riley Securities · 8-K · filed 2026-06-15
- Prospectus supplement for the ATM, with the baby shelf limitation · 424B5 · filed 2026-06-15
- 8-K: Nasdaq minimum bid price deficiency notice · 8-K · filed 2026-07-31
- 8-K: reduction in force · 8-K · filed 2026-08-25
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